rt125q t4.book

rt125q t4.book

RT125Q

Operator’s

Manual

Issue 1.0

Original Translation

053-2893

RT125Q Operator’s Manual

Chapter ContentsOverview

Chapter Contents

Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 2

Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Equipment Modification . . . . . . . . . . . . . . . . . . . . . . 3

Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Operator Orientation. . . . . . . . . . . . . . . . . . . . . . . . . 5

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Bulleted Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Numbered Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

- 1

- 2

RT125Q Operator’s Manual

Serial Number Location

Serial Number Location

Record serial numbers and date of purchase in spaces provided. RT125Q (1) and engine serial numbers

(2) are located as shown.

2

1

t48om042w.eps

Date of manufacture

Date of purchase

RT125Q serial number

Front attachment serial number

Rear attachment serial number

Trailer serial number

Engine serial number

RT125Q Operator’s Manual

Intended Use

Intended Use

- 3

The RT125Q is a riding trencher designed to install buried service lines of various sizes using a variety of

Ditch Witch

®

attachments.

Attachment

BH120 backhoe

CT120H trencher

ST120H trencher

PT120Q combo

RC30 reel carrier

RS40 saw

VP120Q plow

Max. width/diameter

24” (610 mm)

24” (610 mm)

24” (610 mm) n/a

84” (2.13 m) reel dia

103” (1.03 m)

3” (80 mm)

Max. depth

105” (2.7 m)

93” (2.36 m)

90” (2.29 m)

70” (1.78 m) n/a

40.5” (1.03 m)

42” (1.074 m)

This unit is designed for operation in temperatures typically experienced in earth moving and construction work environments. Provisions may be required to operate in extreme temperatures. Contact your Ditch

Witch dealer.

Use in any other way is considered contrary to the intended use.

The RT125Q should be used with genuine Ditch Witch chain, teeth, and sprockets. It should be operated, serviced, and repaired only by persons familiar with their particular characteristics and acquainted with the relevant safety procedures.

Equipment Modification

This equipment was designed and built in accordance with applicable standards and regulations.

Modification of equipment could mean that it will no longer meet regulations and may not function properly or in accordance with the operating instructions. Modification of equipment should only be made by competent personnel possessing knowledge of applicable standards, regulations, equipment design functionality/requirements and any required specialized testing.

The protection offered by the Rollover Protective System (ROPS) will be impaired if it has been subjected to any modification, structural damage, or has been involved in an overturn accident. The ROPS must be replaced after a roll-over.

- 4

Unit Components

2 3

1

RT125Q Operator’s Manual

Unit Components

4

5

t48om001w.eps

1.

Rollover Protective Structure (ROPS)

2.

Operator station

3.

Control console

4.

5.

Engine compartment

Backfill blade (optional)

WARNING: The protection offered by the Rollover Protective System (ROPS) will be impaired if it has been subjected to any modification, structural damage, or has been involved in an overturn accident.

The ROPS must be replaced after a roll-over.

RT125Q Operator’s Manual

Operator Orientation

Operator Orientation

1.

Front of unit

2.

Right of unit

3.

4.

Rear of unit

Left of unit

Right and left sides of machine are determined by facing front of unit while seated at the controls.

4

1

2

- 5

3

t48om002w.eps

About This Manual

This manual contains information for the proper use of this machine. See Operation Overview for basic operating procedures. Cross references such as “See page 50” will direct you to detailed procedures.

Bulleted Lists

Bulleted lists provide helpful or important information or contain procedures that do not have to be performed in a specific order.

Numbered Lists

Numbered lists contain illustration callouts or list steps that must be performed in order.

- 6

RT125Q Operator’s Manual

About This Manual

RT125Q Operator’s Manual

Foreword - 7

Foreword

This manual is an important part of your equipment. It provides safety information and operation instructions to help you use and maintain your Ditch Witch

®

equipment.

Read this manual before using your equipment. Keep it with the equipment at all times for future reference.

If you sell your equipment, be sure to give this manual to the new owner.

If you need a replacement copy, contact your Ditch Witch dealer. If you need assistance in locating a dealer, visit our website at www.ditchwitch.com or write to the following address:

The Charles Machine Works, Inc.

Attn: Marketing Department

PO Box 66

Perry, OK 73077-0066

USA

The descriptions and specifications in this manual are subject to change without notice. The Charles

Machine Works, Inc. reserves the right to improve equipment. Some product improvements may have taken place after this manual was published. For the latest information on Ditch Witch equipment, see your

Ditch Witch dealer.

Thank you for buying and using Ditch Witch equipment.

Foreword - 8

RT125Q Operator’s Manual

RT125 T4

Operator’s Manual

Issue number 1.0/OM-03/15

Part number 053-2893

Copyright 2016 by The Charles Machine Works, Inc.

and Ditch Witch are registered trademarks of The Charles Machine Works, Inc.

This product and its use may be covered by one or more patents at http://patents.charlesmachine.works.

RT125Q Operator’s Manual

Contents - 9

Contents

Overview

machine serial number, information about the type of work this machine is designed to perform, basic machine components, and how to use this manual

Foreword

part number, revision level, and publication date of this manual, and factory contact information

Safety

machine safety alerts and emergency procedures

1

7

11

Controls

machine controls, gauges, displays, and indicators and how to use them

33

Operation Overview

an overview for completing a job with this machine: planning, setting up, installing product, and restoring the jobsite; with cross references to detailed procedures

Prepare

procedures for inspecting and classifying the jobsite, planning the installation path, and preparing the jobsite for work

Drive

procedures for startup, cold start, driving, and shutdown

65

69

77

83

Transport

procedures for lifting, hauling, and towing

Backhoe

procedures for digging with backhoe

95

103

Trench

procedures for trenching

Reel Carrier

procedures for using reel carrier

Saw

procedures for sawing

109

113

Contents - 10

RT125Q Operator’s Manual

Plow

procedures for plowing

Drill

procedures for drilling

117

125

Systems and Equipment

chain, teeth, sprockets, and optional equipment

137

Complete the Job

procedures for backfilling and restoring the jobsite and rinsing and storing equipment

Service

service intervals and instructions for this machine including lubrication, replacement of wear items, and basic maintenance

Specifications

machine specifications including weights, measurements, power ratings, and fluid capacities

Support

the warranty policy for this machine, and procedures for obtaining warranty consideration and training

Service Record

a record of major service performed on the machine

145

147

193

213

217

Appendix

additional information about Ditch Witch

®

equipment

219

RT125Q Operator’s Manual

Chapter Contents

Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

California Proposition 65 Warning . . . . . . . . . . . . 12

Emergency Procedures . . . . . . . . . . . . . . . . . . . . . 13

Electric Strike Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

If an Electric Line is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

If a Gas Line is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

If a Fiber Optic Cable is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

If Machine Catches on Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Safety Alert Classifications . . . . . . . . . . . . . . . . . . 17

Machine Safety Alerts . . . . . . . . . . . . . . . . . . . . . . 18

Safety - 11

Safety

Safety - 12

RT125Q Operator’s Manual

Guidelines

Guidelines

Follow these guidelines before operating any jobsite equipment:

• Complete proper training and read operator’s manual before using equipment.

• Mark proposed path with white paint and have underground utilities located before working. In the US or Canada, call 811 (US) or 888-258-0808 (US and Canada). Also contact any local utilities that do not participate in the One-Call service. In countries that do not have a One-Call service, contact all local utility companies to have underground utilities located.

• Classify jobsite based on its hazards and use correct tools and machinery, safety equipment, and work methods for jobsite.

• Mark jobsite clearly and keep spectators away.

• Wear personal protective equipment.

• Review jobsite hazards, safety and emergency procedures, and individual responsibilities with all personnel before work begins. Safety videos are available from your Ditch Witch

®

dealer or at www.ditchwitch.com/safe.

• Fully inspect equipment before operating. Repair or replace any worn or damaged parts. Replace missing or damaged safety shields and safety signs. Contact your Ditch Witch dealer for assistance.

• Use equipment carefully. Stop operation and investigate anything that does not look or feel right.

• Do not operate unit where flammable gas may be present.

• Only operate equipment in well-ventilated areas.

• Contact your Ditch Witch dealer if you have any question about operation, maintenance, or equipment use.

• Complete the equipment checklist located at www.ditchwitch.com/safe.

California Proposition 65 Warning

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

• battery posts, terminals and related accessories

• engine exhaust

• ethylene glycol

RT125Q Operator’s Manual

Emergency Procedures

Emergency Procedures

Safety - 13

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

Before operating any equipment, review emergency procedures and check that all safety precautions have been taken.

EMERGENCY SHUTDOWN - Turn ignition switch to stop position or push remote engine stop button (if equipped).

Electric Strike Description

Electric shock. Contacting electric lines will cause death or serious injury. Know location of lines and stay away.

When working near electric cables, remember the following:

• Electricity follows all paths to ground, not just path of least resistance.

• Pipes, hoses, and cables will conduct electricity back to all equipment.

• Low voltage current can injure or kill. Many work-related electrocutions result from contact with less than 440 volts.

Most electric strikes are not noticeable, but indications of a strike include:

• power outage

• smoke

• explosion

• popping noises

• arcing electricity

If any of these occur, assume an electric strike has occurred.

Safety - 14

RT125Q Operator’s Manual

Emergency Procedures

If an Electric Line is Damaged

If you suspect an electric line has been damaged and you are on tractor, DO NOT MOVE. Remain on tractor and take the following actions. The order and degree of action will depend upon the situation.

• Warn people nearby that an electric strike has occurred. Instruct them to leave the area and contact utility.

• Raise attachments and drive from immediate area.

• Contact utility company to shut off power.

• Do not return to jobsite or allow anyone into area until given permission by utility company.

If you suspect an electric line has been damaged and you are off tractor, DO NOT TOUCH TRACTOR.

Take the following actions. The order and degree of action will depend upon the situation.

• LEAVE AREA. The ground surface may be electrified, so take small steps with feet close together to reduce the hazard of being shocked from one foot to the other. For more information, contact your

Ditch Witch

®

dealer.

• Contact utility company to shut off power.

• Do not return to jobsite or allow anyone into area until given permission by utility company.

RT125Q Operator’s Manual

Emergency Procedures

If a Gas Line is Damaged

Safety - 15

Fire or explosion possible. Fumes could ignite and cause burns. No smoking, no flame, no spark.

275-419 (2P)

Explosion possible. Serious injury or equipment damage could occur.

Follow directions carefully.

If you suspect a gas line has been damaged, take the following actions. The orders and degree of action will depend on the situation.

• Immediately shut off engine(s), if this can be done safely and quickly.

• Remove any ignition source(s), if this can be done safely and quickly.

• Warn others that a gas line has been cut and that they should leave the area.

• Leave jobsite as quickly as possible.

• Immediately call your local emergency phone number and utility company.

• If jobsite is along street, stop traffic from driving near jobsite.

• Do not return to jobsite until given permission by emergency personnel and utility company.

Safety - 16

RT125Q Operator’s Manual

Emergency Procedures

If a Fiber Optic Cable is Damaged

Do not look into cut ends of fiber optic or unidentified cable. Vision damage can occur. Contact utility company.

If Machine Catches on Fire

Perform emergency shutdown procedure and then take the following actions. The order and degree of action will depend on the situation.

• Immediately move battery disconnect switch (if equipped and accessible) to disconnect position.

• If fire is small and fire extinguisher is available, attempt to extinguish fire.

• If fire cannot be extinguished, leave area as quickly as possible and contact emergency personnel.

RT125Q Operator’s Manual

Safety Alert Classifications

Safety Alert Classifications

Safety - 17

These classifications and the icons defined on the following pages work together to alert you to situations which could be harmful to you, jobsite bystanders or your equipment. When you see these words and icons in the book or on the machine, carefully read and follow all instructions. YOUR SAFETY IS AT

STAKE.

Watch for the three safety alert levels: DANGER, WARNING and CAUTION. Learn what each level means.

indicates a hazardous situation that, if not avoided, will result in death or serious injury. This signal word is to be limited to the most extreme situations.

indicates a hazardous situation that, if not avoided, could result in death or serious injury.

indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.

Watch for two other words: NOTICE and IMPORTANT.

NOTICE indicates information considered important, but not hazard-related (e.g., messages relating to

property damage).

IMPORTANT can help you do a better job or make your job easier in some way.

Safety - 18

Machine Safety Alerts

RT125Q Operator’s Manual

Machine Safety Alerts

1

2

3

275-303

Rollover could kill or crush. Wear seat belt.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

274-050; 274-724 (2P); 700-133

RT125Q Operator’s Manual

Machine Safety Alerts

Safety - 19

Tiedown location. See Transport chapter for more information.

274-318

4

Fall possible. Riders can fall from machine and be injured or killed. Single operator only.

275-185

5

Fire or explosion possible. Do not use starter fluid.

273-459 (2P), 274-206 (2P), 700-206 (2P)

6

Hot parts may cause burns. Do not touch until cool or wear gloves.

275-355 (2-P), 273-423 (2-P)

7

Safety - 20

Attachment Safety Alerts

BH120

RT125Q Operator’s Manual

Attachment Safety Alerts

1

2

275-184, 273-437,

Moving parts could cut off hand or foot. Stay away.

Crushing weight could cause death or serious injury. Stay away.

275-326, 701-326

RT125Q Operator’s Manual

Attachment Safety Alerts

CT120H

Safety - 21

3

4

1

2

5

Lift point. See Transport chapter for more information.

274-442

DANGER decal. See Parts Manual for replacement part numbers.

DANGER stripe decal. See Parts Manual for replacement part numbers.

Moving digging teeth will cause death or serious injury. Trench cave-in can cause you to fall. Stay away.

274-002; 275-097

Tiedown location. See Transport chapter for more information.

274-318

Safety - 22

6

RT125Q Operator’s Manual

Attachment Safety Alerts

Moving digging teeth will cause death or serious injury. Trench cave-in can cause you to fall. Stay away.

274-002; 275-097

RT125Q Operator’s Manual

Attachment Safety Alerts

ST120H

Safety - 23

1

2

3

6ft/2m

Moving digging teeth can kill. Trench cave-in can cause you to fall. Stay away.

275-097, 274-002

Tiedown location. See Transport chapter for more information.

274-318

DANGER decal. See Parts Manual for replacement part numbers.

5

6

Safety - 24

4

RT125Q Operator’s Manual

Attachment Safety Alerts

DANGER stripe decal. See Parts Manual for replacement part numbers.

Lift point. See Transport chapter for more information.

274-442

275-184, 273-546

Moving parts could cut off hand or foot. Stay away.

RT125Q Operator’s Manual

Attachment Safety Alerts

PT120Q

Safety - 25

1

2

3

Moving digging teeth will cause death or serious injury. Trench cave-in can cause you to fall. Stay away.

274-002; 275-097

Crushing weight could cause death or serious injury. Stay away.

275-326, 701-326

Lift point. See Transport chapter for more information.

274-442

5

6

Safety - 26

4

7

RT125Q Operator’s Manual

Attachment Safety Alerts

Tiedown location. See Transport chapter for more information.

274-318

DANGER decal. See Parts Manual for replacement part numbers.

DANGER stripe decal. See Parts Manual for replacement part numbers.

275-184

Moving parts could cut off hand. Keep hands away.

RT125Q Operator’s Manual

Attachment Safety Alerts

RC30

Safety - 27

1

2

Lift point. See Transport chapter for more information.

274-442

Crushing weight could cause death or serious injury. Stay away.

275-326, 701-326

Safety - 28

RS40

RT125Q Operator’s Manual

Attachment Safety Alerts

1

2

3

Tiedown location. See Transport chapter for more information.

274-318

Lift point. See Transport chapter for more information.

274-442

Moving digging teeth will cause serious injury or death. Stay away.

275-443, 275-103

RT125Q Operator’s Manual

Attachment Safety Alerts

Safety - 29

275-184, 273-437,

Moving parts could cut off hand or foot. Stay away.

4

Flying objects thrown by machine may strike people. Wear safety glasses and hard hat.

275-193

5

Safety - 30

VP120Q

RT125Q Operator’s Manual

Attachment Safety Alerts

3

4

1

2

275-184, 273-437,

Moving parts could cut off hand or foot. Stay away.

Tiedown location. See Transport chapter for more information.

274-318

Lift point. See Transport chapter for more information.

274-442

Crushing weight could cause death or serious injury. Stay away.

275-326, 701-326

RT125Q Operator’s Manual

Attachment Safety Alerts

RWIII/RWIV

Safety - 31

1

away.

275-197

Turning shaft will kill you or crush arm or leg. Stay

Safety - 32

RT125Q Operator’s Manual

Attachment Safety Alerts

RT125Q Operator’s Manual

Chapter Contents

Center Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Right Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Graphic Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Gauges and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Left Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Seat Deck. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Plow Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Backhoe Console . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Drill Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Battery Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . 63

Controls - 33

Controls

Controls - 34

Center Console

1

RT125Q Operator’s Manual

Center Console

4

t48om003w.eps

1.

Auxiliary outlet

2.

Ground drive foot control

Item

1.

Auxiliary outlet

3 2

Description

Provides power for other equipment.

3.

Steering column tilt control

4.

Ground drive direction/speed control

Notes

Power output is 12V, 10A. c00ic179h.eps

2.

Ground drive foot control

To move tractor, push pedal down.

To increase speed in either direction, push pedal farther from neutral position.

To reduce speed in either direction, release pedal slightly.

To stop, release pedal.

To function, ground drive direction control must be in forward or reverse.

See “Ground drive direction/speed control” on page 35.

Pedal should automatically return to neutral when released.

RT125Q Operator’s Manual

Center Console

Controls - 35

Item

3.

Steering column tilt control

4.

Ground drive direction/ speed control

c00ic161w.eps

1

2

3

Description

To adjust tilt, depress lever.

Notes

To secure steering column in position, release.

To move tractor forward, move lever to the upper position.

To put tractor in neutral, move lever to the center position. Display indicates forward, neutral, or reverse selection.

To move tractor in reverse, move lever to the lower position.

Must be in forward or reverse position for ground drive foot control to

function. See “Ground drive foot control” on page 34.

To select High (3), Medium

(2) or Low (1), rotate knob to appropriate position.

Screen icon displays High, Medium or

Low selection.

w

Controls - 36

Right Console

1 2

RT125Q Operator’s Manual

Right Console

3 4 5 6 7 8 9

15 14 13 12 11 10

t48om004w.eps

1.

Horn button

2.

Ignition switch

3.

Plow lift control

4.

Plow swing control

5.

Plow blade steer control

6.

Saw lift/Trencher lift control

7.

Saw stabilizer control

8.

Trench cleaner lift control*

Item

1.

Horn button

Description

To sound horn, press.

9.

Start override button

10. Rear steer mode selector switch

11. Rear steer adjustment switch*

12. Ground drive speed hand control

13. Frame tilt control*

14. Reel winder/Backfill blade control

15. Graphic display

*Optional

Notes

c00ic044h.eps

RT125Q Operator’s Manual

Right Console

Item

2.

Ignition switch

Description

To start engine, insert key and turn clockwise.

Notes

To stop engine, turn counterclockwise.

Controls - 37

3.

c00ic137w.eps

Plow lift control

c00ic204h.eps

4.

Plow swing control

To lower, move forward.

To raise, pull back.

To float, push switch all the way forward until it latches.

NOTICE:

• If soil conditions allow, operate in float position.

• Lower plow into ground before moving control to float position.

• Do not raise plow with control in float position.

To swing right, move forward.

NOTICE:

To swing left, pull back.

To float, push switch all the way forward until it latches.

• If soil conditions allow, operate in float position.

• Lower plow into ground before moving control to float position.

c00ic202h.eps

5.

Plow blade steer control

To steer right, move forward.

To steer left, pull back. c00ic203h.eps

Controls - 38

Item

6.

Saw lift/Trencher lift control

Description

To lower, move forward.

To raise, pull back.

RT125Q Operator’s Manual

Right Console

Notes

c00ic209h.eps

To lower, move forward.

To raise, pull back.

7.

Saw stabilizer control

To lower, move forward.

To raise, pull back. c00ic153w.eps

8.

Trench cleaner lift control*

To lower, move forward.

To raise, pull back.

9.

Start override button

To engage start override, press and hold.

IMPORTANT: Overrides start interlock functions, allowing operator to start tractor for a short period of time to move from a potentially dangerous position. c00ic024w.eps

RT125Q Operator’s Manual

Right Console

Item

10. Rear steer mode selector switch

Description

To engage rear steer, press left.

To center tracks, press right.

Notes

Controls - 39

c00ic146w.eps

11. Rear steer adjustment switch*

To move rear tracks left, press and hold left.

To move rear tracks right, press and hold right.

To stop track movement, release switch. c00ic145w.eps

12. Ground drive speed hand control

To go faster in either direction, move farther from neutral.

To stop, return to center.

NOTICE: Visually verify track

position.

NOTICE: Control does not

automatically return to neutral.

IMPORTANT: This control is disabled in High gear.

c00ic157w.eps

13. Frame tilt control*

To tilt left, press left.

To tilt right, press right.

IMPORTANT: Use frame tilt to improve comfort while operating

machine on slope. See “Safe Slope

Operation” on page 80.

c00ic140w.eps

Controls - 40

Item

14. Reel winder/Backfill blade control

c00ic141w.eps

RT125Q Operator’s Manual

Right Console

Description

Backfill blade mode:

• To lower, move forward.

• To raise, move backward.

• To tilt right side down, move right.

• To tilt left side down, move left.

• To angle blade to the right, twist right.

• To angle blade to the left, twist left.

Notes

c00ic144w.eps

c00ic143w.eps

c00ic150w.eps

15. Graphic display

• To float, move forward to end, press button, and release handle.

• To remove from float, move back.

Display indicates float position.

Reel winder mode:

• To spool product off, move forward.

• To spool product on, move backward.

• To move wheel to spool, move right.

• To move wheel away from spool, move left.

Displays graphic symbols for indicators and conditions.

See more information in “Graphic

Display” on page 41.

2 w

RT125Q Operator’s Manual

Graphic Display

Graphic Display

Gauges and Indicators

1 2 3 4 5 6 7 8

10:10

AM

2

15

20

10

X100

RPM

25

5 30

1938

RPM

1500

R

P

M

1750

R

P

M

78

%

63

%

87

%

Controls - 41

13 12 11 10 9

t48om046w.eps

1.

Tachometer

2.

Engine speed display (rpm)

3.

Real time clock

4.

Cruise control set speed display (rpm)

5.

Ground drive speed indicator

6.

Attachment drive indicator

7.

Rear steer indicator

8.

9.

Ground drive direction indicator

Backfill blade float indicator

10. Cold start wait indicator

11. Operator presence indicator

12. Parking brake indicator

13. Axle lock indicator

Item

1.

Tachometer

2.

Engine speed display

(rpm)

Description

Displays engine speed.

Displays numeric value for engine speed.

Notes

Controls - 42

Item

3.

Real time clock

4.

Cruise control set speed display (rpm)

5.

Ground drive speed indicator

RT125Q Operator’s Manual

Graphic Display

Description

Displays time.

Displays numeric value for speed if cruise control is set.

Notes

Only shown when cruise selector

switch is ON. See “Cruise control selector switch” on page 53.

Indicates whether ground drive is in High (3), Medium

(2) or Low (1).

6.

7.

Attachment drive indicator

Rear steer indicator

Lights when an attachment is in use and displays numeric value of attachment drive percentage.

Lights when rear steer is in use.

IMPORTANT: Icon displays direction of tracks.

8.

Ground drive direction indicator

Indicates whether tractor is in forward, reverse, or neutral.

Part of the start interlock system.

9.

Backfill blade float indicator

Lights when backfill blade is in float.

10. Cold start wait indicator

Lights when cold start aids are active.

11. Operator presence indicator

Wait until light goes off before starting engine.

Lights when operator is in seat.

Part of the start interlock system.

12. Parking brake indicator

Lights when parking brake is set.

13. Axle lock indicator

Lights when axle lock is set.

RT125Q Operator’s Manual

Graphic Display

Gauges and Indicators

1 2 3

Controls - 43

4 5 6 7 8

78

%

87

%

1938

RPM

1500 1750

63

%

150 psi

150

F

42

%

12.2

Volts

50

Hours

12 11 10 9

t48om051w.eps

1.

2.

3.

4.

5.

6.

Hydraulic fluid temperature indicator

Hydraulic fluid filter indicator

Engine caution/stop indicator

Fuel gauge

DEF indicator/tank level percentage

Exhaust cleaning indicator

Item

1.

Hydraulic fluid temperature indicator

Description

7.

Aftertreatment service indicator

8.

High exhaust temperature indicator

9.

Voltmeter display

10. Hourmeter

11. Engine coolant temperature indicator/numeric display

12. Engine oil pressure indicator/numeric display

Lights when hydraulic fluid temperature is too high.

Notes

NOTICE: Engine stop indicator will

light when hydraulic fluid temperature is too high.

See “Engine caution/stop indicator” on page 44.

Controls - 44

Item

2.

Hydraulic fluid filter indicator

RT125Q Operator’s Manual

Graphic Display

Description

Lights when hydraulic filter is restricted.

Notes

NOTICE: Engine caution indicator will

light when hydraulic fluid filter needs attention.

See “Engine caution/stop indicator” on page 44.

Lights yellow when engine needs attention.

3.

Engine caution/stop indicator

!

4.

Fuel gauge

Lights red when operator needs to stop engine.

Displays amount of fuel remaining in tank.

See “Approved Fuel” on page 152.

5.

DEF indicator/tank level percentage

Displays amount of diesel exhaust fluid (DEF) remaining in tank.

IMPORTANT:

6.

Exhaust cleaning indicator

Indicates that a system cleaning is needed.

Icon changes color and/or flashes to indicate DEF level. Read pop up messages for more information.

IMPORTANT:

Icon changes color and/or flashes to indicate exhaust cleaning need. Read pop up messages for more information.

7.

Aftertreatment service indicator

Indicates when aftertreatment system needs to be serviced.

See “Diesel Exhaust Fluid (DEF)” on page 153.

NOTICE: Contact an authorized

Deutz

®

service technician.

8.

High exhaust temperature indicator

Lights when exhaust temperatures are high.

9.

Voltmeter display

10. Hourmeter

Displays machine voltage.

Displays number of hours engine has been running.

NOTICE: May light when exhaust

cleaning is occurring.

RT125Q Operator’s Manual

Graphic Display

Item

11. Engine coolant temperature indicator/ numeric display

Description

Displays engine coolant temperature.

Controls - 45

Notes

Normal coolant temperature is 187°-

230° F (86°-107° C).

12. Engine oil pressure indicator/numeric display

Displays engine oil pressure. Minimum pressure for warm engine at full throttle is 32 psi (2.25 bar).

Controls - 46

Buttons

2

RT125Q Operator’s Manual

Graphic Display

1

78

%

10

X100

RPM

1938

RPM

1500 1750

63

%

87

%

3

t48om052w.eps

1.

Hide/Recall engine diagnostics key

2.

Day/Night mode key

Item

1.

Hide/Recall engine diagnostics key

2.

3.

Day/Night mode key

Main menu key

3.

Main menu key

Description

When diagnostic message appears, press button twice to hide.

Press button twice to recall message.

Press from main screen to toggle between day and night modes.

Press from main screen

(gauges) to select main menu.

Notes

Note:

RT125Q Operator’s Manual

Graphic Display

Main Menu

1 2 3 4 5

Controls - 47

6

60%

7

t48om058w.eps

1.

System settings key

2.

Exhaust cleaning activation key

3.

Machine diagnostics code display key

4.

Brightness control display key

5.

6.

7.

User settings key

Return key

Air filter restriction indicator

Press the center soft key to display the main menu screen, which has icons for other functions. Soft keys below on screen icons allow the operator to toggle between various screens and functions.

Item

1.

System settings key

2.

3.

Exhaust cleaning activation key

Machine diagnostics code display key

Description

Press to display software version.

Press to activate exhaust cleaning.

Press to display interlock icons and machine diagnostic codes, if any.

Notes

Note: If diagnostic codes are displayed, contact your Ditch Witch

® dealer.

Controls - 48

Item

4.

Brightness control display key

5.

User settings key

6.

Return key

7.

Air filter restriction indicator

RT125Q Operator’s Manual

Graphic Display

Description

Press to change the brightness of the display screen.

Press to customize settings.

Notes

Minimum brightness is 10%.

Maximum brightness is 100%.

Real time clock setting, unit setting, and language can be changed in this screen.

Press to return to main screen (gauges).

Displays percentage of air filter left unrestricted.

For best results, replace filter after pop-up message appears.

Access through main menu screen.

RT125Q Operator’s Manual

Graphic Display

Diagnostic Messages

1 2

SPN: 523618

FMI: 4

DID: 0

Diagnostic Message: 3 of 5

Gearbox oil temperature; Short circuit to ground

Controls - 49

4 3

t48om048w.eps

1.

Hide/Recall key

2.

Diagnostics error message information display

3.

Next error message key

4.

Previous error message key

Item

1.

Hide/Recall key

Description

Press to hide/recall active error codes.

Displays detailed information about the error code.

2.

Diagnostics error message information display

3.

Next error message key

Press to display next active error message in list.

4.

Previous error message key

Press to display previous error message in list.

Notes

Controls - 50

RT125Q Operator’s Manual

Graphic Display

Display Pop-Up Messages

Machine display will automatically display pop-up messages for start interlock and exhaust cleaning systems when needed. Display screen will return to normal once conditions are met.

Start Interlock

For machine to start, operator must be in seat and ground drive direction control must be in neutral. If one or more of these conditions is not met, a pop-up message will appear with applicable information about which condition is not met.

Exhaust Cleaning

A pop-up message will appear when an exhaust cleaning is needed.

NOTICE: Failure to complete the exhaust cleaning when required can cause damage to the engine.

When pop-up message appears:

1.

Ensure machine is away from combustible material.

2.

Set parking brake.

3.

Set engine at low throttle.

4.

Follow on-screen prompts to initiate exhaust cleaning.

After exhaust cleaning is initiated, another pop-up message will be displayed with the estimated time remaining until process is complete.

IMPORTANT: If exhaust cleaning cannot be initiated when pop-up message occurs, follow on-screen prompts to return to main screen (gauges). Pop-up message will return to prompt exhaust cleaning at a later time.

Air Filter

A pop-up message will appear when the air filter needs to be changed. See “Change Air Filter” on page 184 for more information on how to change air filter.

NOTICE: Failure to change the air filter when required can cause damage to the engine.

RT125Q Operator’s Manual

Left Console

Left Console

1 2 3 4

Controls - 51

9 8 7 6 5

t48om005w.eps

1.

Reel winder selector switch

2.

Reel carrier lift control

3.

Axle lock switch

4.

Throttle

5.

Cruise control speed dial control

Item

1.

Reel winder selector switch

6.

Cruise control selector switch

7.

Attachment speed/direction control

8.

Parking brake switch

9.

Combo select switch/Saw/Trench slide control*

*Optional

Description

To change backfill blade joystick to reel winder control mode, press top.

Notes

To return to backfill blade mode, press bottom.

c00ic642w.eps

Controls - 52

Item

2.

Reel carrier lift control

Description

To lower, move left.

To raise, move right.

RT125Q Operator’s Manual

Left Console

Notes

c00ic159w.eps

3.

Axle lock switch

c00ic136w.eps

4.

Throttle

To engage axle lock, press left.

NOTICE:

To disengage axle lock, press right.

• To engage axle lock, operator must be in seat and ground drive direction control must be in neutral.

• After disengaging axle lock, drive tractor in reverse 6’ (2 m) to fully disengage.

To increase speed, move forward.

To decrease speed, pull back.

5.

Cruise control speed dial control

C

To increase engine load while using cruise control, turn clockwise.

To decrease engine load while using cruise control, turn counterclockwise.

c00ic138w.eps

RT125Q Operator’s Manual

Left Console

Item

6.

Cruise control selector switch

Description

To turn on, press left.

To turn off, press right.

C

Controls - 53

Notes

Turn on cruise control only when:

• ground drive motor control is in low

• ground drive is in neutral

7.

c00ic139w.eps

Attachment speed/ direction control

To go faster in either direction, move farther from neutral.

To stop, return to center.

NOTICE:

• For control to function, ground drive direction control must be in neutral.

• Control does not automatically return to neutral.

c00ic158w.eps

8.

Parking brake indicator

To set parking brake, press left.

To release parking brake, press right. c00ic147w.eps

Controls - 54

Item

9.

Combo select switch/

Saw/Trencher slide control*

Description

To select combo, press.

RT125Q Operator’s Manual

Left Console

Notes

c00ic154w.eps

c00ic155w.eps

To slide trencher right, move forward.

To slide trencher left, pull back.

To slide saw right, move forward.

To slide saw left, pull back. c00ic160w.eps

RT125Q Operator’s Manual

Seat Deck

Seat Deck

1

Controls - 55

3

3.

Seat pivot control

2

t48om006w.eps

1.

Seat belt

2.

Seat slide control

Item

1.

Seat belt

2.

Seat pivot control

3.

Seat slide control

Description

To fasten, insert latch into buckle. Adjust until seat belt is low and tight.

Notes

To release, lift top of buckle.

To pivot seat, push lever in direction of arrow, rotate seat to desired position and release.

Seat pivots to the right at 0°, 5°, 60° and 90° and to the left at 30°.

IMPORTANT: Drive tractor with operator’s seat facing front. If desired, operate rear attachments with seat pivoted.

To slide seat forward or backward, pull, then adjust seat.

To lock seat in place, release.

Controls - 56

Plow Controls

1

RT125Q Operator’s Manual

Seat Deck

2

t48om007w.eps

1.

Stow lock control (cab) 2.

Stow lock control

Item Description

1.

Stow lock control (cab) To lock:

2.

c00ic162w.eps

Stow lock control

• Raise plow fully.

• Lower plow slightly to engage lock.

To unlock:

• Pull on cable to release latch plow slightly.

To lock:

c00ic643w.eps

• Raise plow fully.

• Lower plow slightly to engage lock.

To unlock:

• Raise plow slightly.

• Push stow lock handle to release lock.

Notes

Use this control to lock plow in the raised position.

Use this control to lock plow in the raised position.

RT125Q Operator’s Manual

Backhoe Console

Backhoe Console

1 2 3 4

Controls - 57

5 6 7 8

13

t48om057w.eps

1.

Boom/Swing control

2.

Remote throttle enable switch

3.

Remote throttle control

4.

Work light switch*

5.

Swing lock pin

6.

Remote ignition control

7.

Remote engine stop button

12 11 10

8.

Stow lock control

9.

Bucket/Dipper control

10. Right stabilizer control

11. Remote ground drive control

12. Remote backfill blade control*

13. Left stabilizer control

*optional

9

Controls - 58

RT125Q Operator’s Manual

Backhoe Console

Item

1.

Boom/Swing control

2.

Remote throttle enable

Description

To swing boom left, move left.

To swing boom right, move right.

Notes

Control can perform more than one action at a time. By “feathering” the control, operator can combine backhoe operations.

To raise boom, pull.

To lower boom, push.

NOTICE: Do not operate with

backhoe in the stowed (upright) position.

To enable remote throttle control, press top.

To disable remote throttle control, press bottom.

This switch must be returned to the

OFF position for normal throttle control at tractor.

c00ic030w.eps

3.

Remote throttle control

To increase speed, move forward.

To decrease speed, pull back.

c00ic029w.eps

4.

Work light switch

To turn on, press right.

To turn off, press left.

RT125Q Operator’s Manual

Backhoe Console

Controls - 59

Item

5.

Swing lock pin

Description

To lock:

• Engage stow lock. See

“Stow lock control” on page 60.

• Insert swing lock pin into hole (1).

To release:

• Remove pin and store in hole (2).

• Release stow lock.

6.

Remote ignition control

To start engine, turn clockwise.

To stop engine, turn counterclockwise.

Notes

NOTICE:

• Always use stow lock and install swing lock pin during transport.

Do not store pin in holes marked with an “X.” Backhoe could swing and destroy pin.

c00ic056t.eps

7.

Remote engine stop button

Press to stop engine immediately.

For normal engine shutdown, use remote ignition control.

IMPORTANT: Engine will not start if remote engine stop is engaged.

Controls - 60

Item

8.

Stow lock control

9.

Bucket/Dipper control

RT125Q Operator’s Manual

Backhoe Console

Description

To lock:

• Raise boom fully.

• Pull stow lock handle.

• Lower boom slightly to engage lock.

• Insert swing lock pin.

To unlock:

Notes

NOTICE: Always use stow lock and

install swing lock pin during transport.

• Remove swing lock pin.

• Raise boom slightly.

• Push stow lock handle to release lock.

To open bucket, move right.

To close bucket, move left.

Control can perform more than one action at a time. By “feathering” the control, operator can combine backhoe operations.

To move dipper in, pull.

To move dipper out, push.

10. Right stabilizer control

To lower, move right.

To raise, move left.

RT125Q Operator’s Manual

Backhoe Console

Item

11. Remote ground drive control

Description

To move tractor forward, push.

To move tractor backward, pull.

c00ic216h.eps

Controls - 61

Notes

NOTICE:

• This control is disabled if tractor seat is occupied.

• Tractor must be in low speed and ground drive direction control must be in neutral for remote ground drive to function.

• Ensure that backfill blade, if equipped, and stabilizers are raised, and parking brake is released before operating this control.

• Do not move more than 30’ (10 m) at a time.

12. Remote backfill blade control

To lower, push.

To raise, pull.

13. Left stabilizer control

To lower, move left.

To raise, move right.

Controls - 62

Drill Controls

1

RT125Q Operator’s Manual

Drill Controls

t33om063w.eps

1.

Drilling attachment control

Item

1.

Drilling attachment control

Description

To rotate clockwise, press bore.

To rotate counterclockwise, press reverse.

Notes

IMPORTANT: Always rotate clockwise during drilling and backreaming. Rotate counterclockwise only to dislodge a dry bore bit or reamer that has seized in the bore hole.

Switch should return to neutral position when released. c00ic655w.eps

RT125Q Operator’s Manual

Battery Disconnect

Battery Disconnect

Controls - 63

1

t48om008w.eps

1.

Battery disconnect switch

Item

1.

Battery disconnect switch

_

+

Description

To connect, move left.

To disconnect, move right.

Notes

NOTICE:

• Do not operate battery switch with engine running.

• To avoid equipment damage, wait two minutes after turning engine off before disconnecting battery.

c00ic156w.eps

Controls - 64

RT125Q Operator’s Manual

Battery Disconnect

RT125Q Operator’s Manual

Operation Overview - 65

Operation Overview

Chapter Contents

Planning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Trenching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Plowing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Digging with Backhoe . . . . . . . . . . . . . . . . . . . . . . 67

Drilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Sawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Leaving Jobsite. . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Operation Overview - 66

RT125Q Operator’s Manual

Planning

Planning

1.

Gather information about jobsite. See page 70.

2.

Inspect jobsite. See page 71.

3.

Classify jobsite. See page 72.

4.

Select chain and teeth to match your soil type, if necessary. See page 140

5.

Check supplies and prepare equipment. See page 74.

6.

Haul equipment to jobsite. See page 90.

Trenching

1.

Start unit. See page 78.

2.

Position tractor and controls. See page 104.

3.

Begin trenching. See page 106.

4.

Engage cruise control if desired. See page 138.

5.

Complete the installation. See page 108.

6.

Shut down tractor. See page 81.

Plowing

1.

Start unit. See page 78.

2.

Position tractor and controls. See page 118.

offset plowing - page 122

coordinated plowing - page 122

crabbing - page 122

3.

Attach product. See page 119.

4.

Begin plowing. See page 121.

5.

Engage cruise control if desired. See page 138.

6.

Complete the installation. See page 123.

7.

Shut down tractor. See page 81.

RT125Q Operator’s Manual

Digging with Backhoe

Digging with Backhoe

1.

Start unit. See page 78.

2.

Set stabilizers and unstow backhoe. See page 96.

3.

Excavate. See page 98.

4.

Stow backhoe properly. See page 100.

5.

Shut down tractor. See page 81.

Drilling

1.

Start unit. See page 78.

2.

Dig approach trench and target trench. See page 126.

3.

Assemble drill string and position tractor. See page 128.

4.

Begin drilling. See page 129.

5.

Use drill string guide as needed. See page 130.

6.

Add rod. See page 131.

7.

Backream. See page 132.

8.

Shut down tractor. See page 81.

9.

Disassemble joints. See page 136.

Sawing

1.

Start unit. See page 78.

2.

Position tractor and controls. See page 114.

3.

Begin sawing. See page 115.

4.

Complete the installation. See page 116.

5.

Backfill the trench. See page 146.

6.

Shut down tractor. See page 81.

Leaving Jobsite

1.

Backfill if necessary. See page 146.

2.

Rinse equipment. See page 146.

3.

Stow tools. See page 146.

4.

Haul equipment from jobsite. See page 90.

Operation Overview - 67

Operation Overview - 68

RT125Q Operator’s Manual

Leaving Jobsite

RT125Q Operator’s Manual

Chapter Contents

Gather Information . . . . . . . . . . . . . . . . . . . . . . . . . 70

Review Job Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Notify One-Call Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Arrange for Traffic Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Plan for Emergency Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Inspect Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Identify Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Classify Jobsite. . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Select a Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Apply Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Check Supplies and Prepare Equipment . . . . . . . 74

Check Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Prepare Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Assemble Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Prepare - 69

Prepare

Prepare - 70

RT125Q Operator’s Manual

Gather Information

Gather Information

A successful job begins before you dig. The first step in planning is reviewing information already available about the job and jobsite.

Review Job Plan

Review blueprints or other plans. Check for information about existing or planned structures, elevations, or proposed work that may be taking place at the same time.

Notify One-Call Services

Mark proposed path with white paint and have underground utilities located before working.

• In the US or Canada, call 811 (US) or 888-258-0808 (US and Canada). Also contact any local utilities that do not participate in the One-Call service.

• In countries that do not have a One-Call service, contact all local utility companies to have underground utilities located.

Arrange for Traffic Control

If working near a road or other traffic area, contact local authorities about safety procedures and regulations.

Plan for Emergency Services

Have the telephone numbers for local emergency and medical facilities on hand. Check that you will have access to a telephone.

RT125Q Operator’s Manual

Inspect Site

Inspect Site

Prepare - 71

Identify Hazards

Inspect jobsite before transporting equipment. Check for the following:

• overall grade or slope

• changes in elevation such as hills or other open trenches

• obstacles such as buildings, railroad crossings, or streams

• signs of utilities on jobsite and perimeter, such as:

– “buried utility” notices

– utility facilities without overhead lines

– gas or water meters

– junction boxes

– drop boxes

– light poles

– manhole covers

– sunken ground

• traffic

• access

• soil type and condition

Have an experienced locating equipment operator sweep area within 20’ (6 m) to each side of trench path to verify previously marked line and cable locations. Mark location of all buried utilities and obstructions.

Prepare - 72

Classify Jobsite

RT125Q Operator’s Manual

Classify Jobsite

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

To Help Avoid Injury:

• Wear personal protective equipment including hard hat, safety eye wear, and hearing protection.

• Do not wear jewelry or loose clothing.

• Mark proposed path with white paint and have underground utilities located before working.

• Comply with all utility notification regulations before digging or drilling.

• Verify location of previously marked underground hazards.

• Mark jobsite clearly and keep spectators away.

Remember, jobsite is classified by hazards in place -- not by line being installed.

Select a Classification

Jobsites are classified according to underground hazards present.

If working . . .

within 10’ (3 m) of a buried electric line within 10’ (3 m) of a natural gas line in sand, granite, or concrete which is capable of producing crystalline silica (quartz) dust within 10’ (3 m) of any other hazard

then classify jobsite as . . .

electric natural gas crystalline silica (quartz) dust other

NOTICE: If you have any doubt about jobsite classification, or if jobsite might contain unmarked

hazards, take steps outlined previously to identify hazards and classify jobsite before working.

RT125Q Operator’s Manual

Classify Jobsite

Apply Precautions

Prepare - 73

Once classified, precautions appropriate for jobsite must be taken. Follow U.S. Department of Labor regulations on excavating and trenching (Part 1926, Subpart P) and other similar regulations.

Electric Jobsite Precautions

Use one or both of these methods.

• Expose line by careful hand digging or soft excavation.

• Have service shut down while work is in progress. Have electric company test lines before returning them to service.

Natural Gas Jobsite Precautions

In addition to positioning equipment upwind from gas lines, use one or both of these methods.

• Expose lines by careful hand digging or soft excavation.

• Have gas shut off while work is in progress. Have gas company test lines before returning them to service.

Crystalline Silica (Quartz) Dust Precautions

Crystalline silica dust is a naturally occurring substance found in soil, sand, concrete, granite, and quartz.

Breathing silica dust particles while cutting, drilling, or working materials may cause lung disease or cancer. To reduce exposure:

• Use water spray or other means to control dust.

• Refer to U.S. Department of Labor Occupational Safety and Health Administration guidelines to learn more about appropriate breathing protection and permissible exposure limits.

Other Jobsite Precautions

You may need to use different methods to safely avoid other underground hazards. Talk with those knowledgeable about hazards present at each site to determine which precautions should be taken or if job should be attempted.

Prepare - 74

RT125Q Operator’s Manual

Check Supplies and Prepare Equipment

Check Supplies and Prepare Equipment

Check Supplies

• fuel

• keys

• personal protective equipment, such as hard hat and safety glasses

Prepare Equipment

Fluid Levels

• fuel

• hydraulic fluid

• diesel exhaust fluid

• battery charge

• engine oil

Condition and Function

• all controls

Improper control function could cause death or serious injury. If control does not work as described in instructions, stop machine and have it serviced.

• digging chain and teeth

• brake pads and disc

• fan belts

• light bulbs

• filters (air, oil, hydraulic)

• tracks

• pumps and motors

• hoses and valves

• signs, guards, and shields

RT125Q Operator’s Manual

Check Supplies and Prepare Equipment

Assemble Accessories

Fire Extinguisher

If required, mount a fire extinguisher near the power unit but away from possible points of ignition where shown. The fire extinguisher should always be classified for both oil and electric fires.

It should meet legal and regulatory requirements.

Prepare - 75

Prepare - 76

RT125Q Operator’s Manual

Check Supplies and Prepare Equipment

RT125Q Operator’s Manual

Chapter Contents

Start Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Safe Slope Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Drive - 77

Drive

Drive - 78

RT125Q Operator’s Manual

Start Unit

Start Unit

Before operating tractor, read engine manufacturer’s starting and operating instructions.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

To help avoid injury: Wear hard hat, safety glasses, and other protective equipment required by job.

Do not wear jewelry or loose clothing that can catch on controls.

Rollover possible. If machine rolls over, you could be thrown from seat and killed or crushed. Wear seat belt.

275-303

1.

Clear the area around the machine of all bystanders.

2.

Fasten and adjust seat belt.

3.

Check that start interlock conditions are met. See “Start Interlock” on page 50.

4.

Ensure all other controls are returned to neutral.

IMPORTANT: Machine controls will not function if not returned to neutral prior to starting machine. If controls are not returned to neutral prior to starting machine, turn control off and then back on in order to function after machine is running.

5.

Adjust throttle to low.

6.

Verify that parking brake is set.

7.

Turn ignition switch to the run position (key on, engine off). Wait for operator display to come on. Cold start wait indicator will light if necessary.

Fire or explosion possible. Do not use starter fluid.

273-459 (2P), 274-206 (2P), 700-206 (2P)

8.

When cold start wait indicator turns off, turn ignition switch clockwise to start tractor. Warning alarm will sound. Indicators will light.

• If engine does not start, ensure start interlock conditions are met. See

• for start interlock information.

• If engine turns but does not start within 20 seconds, allow starter to cool one minute before trying to start again.

RT125Q Operator’s Manual

Drive

Drive - 79

9.

Run engine at half-throttle or less for five minutes before operating tractor. Ensure all controls function properly.

Drive

General Operation

Moving traffic – hazardous situation. Death or serious injury could result.

Avoid moving vehicles, wear high visibility clothing, post appropriate warning signs.

To help avoid injury:

• Survey your field of vision when operating the machine.

• Drive carefully in congested areas. Know machine’s clearance and turning radius.

EMERGENCY SHUTDOWN: Turn ignition switch to STOP.

1.

Turn on optional lights as needed.

2.

Raise backfill blade and all attachments.

3.

Release parking brake.

4.

Adjust throttle.

5.

When operating in Low or Medium:

• if using the ground drive speed control, the ground drive foot control will only increase speed.

• any opposing signal from controls causes ground drive to stop.

6.

When operating in High, ground drive stops if ground drive speed control is moved out of neutral position.

Drive - 80

Safe Slope Operation

RT125Q Operator’s Manual

Drive

Tipover possible. Machine can tip over and crush you.

To help avoid injury:

• Always operate with heavy end uphill.

• Drive cautiously at all times.

• Never jerk control levers. Use a steady even motion.

• Do not park unit on slope without lowering digging attachment to the ground, returning all controls to neutral position, shutting down unit, and set parking brake.

Operating safely on a slope depends upon many factors including:

• Distribution of machine weight, including front loading and absence of load

• Height of load

• Even or rough ground conditions

• Potential for ground giving way causing unplanned tilt forward, reverse or sideways

• Nearness of ditches, ruts, stumps or other obstructions and sudden changes in slope

• Speed

• Turning

• Braking performance

• Operator skill

These varying factors make it impractical to specify a maximum safe operating angle in this manual. It is therefore important for the operator to be aware of these conditions and adjust operation accordingly.

Maximum engine angle and braking performance are two absolute limits which must never be exceeded.

These maximums are stated below since they are design limits. These design limits usually exceed the operating limits and must never be used alone to establish safe operating angle for variable conditions.

Maximum engine lubrication angle – 30°

Maximum service brake retarding force – equal to traction of both tracks.

Maximum secondary brake retarding force – equal to traction of one track.

Maximum park brake holding force – equal to traction of both tracks.

RT125Q Operator’s Manual

Shut Down

Shut Down

Drive - 81

1.

When job is complete, drive unit to level ground.

2.

Move ground drive control to neutral.

3.

Set parking brake and verify parking brake indicator is on.

4.

Lower all unstowed attachments to ground.

5.

Run engine at low throttle for three minutes to cool.

6.

Turn ignition switch to STOP. If leaving machine unattended, remove key.

7.

For maintenance or long-term storage, turn battery disconnect switch to disconnect position.

NOTICE: To avoid equipment damage, wait two minutes after turning engine off before

disconnecting battery.

Drive - 82

RT125Q Operator’s Manual

Shut Down

RT125Q Operator’s Manual

Chapter Contents

Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Tie Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

Haul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

Retrieve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

Transport - 83

Transport

Transport - 84

Lift

RT125Q Operator’s Manual

Lift

Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Points

Lifting points are identified by lifting decals. Lifting at other points is unsafe and can damage machinery.

Procedure

Tractor

This machine is not configured for lifting. If the machine must be lifted, load machine into a container or

onto a platform appropriate for lifting. See “Specifications” on page 193 for size and weight of machine.

RT125Q Operator’s Manual

Lift

Centerline Trencher

Use crane capable of supporting the equipment's size and weight. See

“Specifications” on page 193 or measure and

weigh equipment before lifting.

Traversing Trencher

Use crane capable of supporting the equipment's size and weight. See

“Specifications” on page 193 or measure and

weigh equipment before lifting.

Combo

Use crane capable of supporting the equipment’s

size and weight. See “Specifications” on page 193 or measure and weigh equipment

before lifting.

Transport - 85

Transport - 86

Plow

Use crane capable of supporting the equipment's size and weight. See

“Specifications” on page 193 or measure and

weigh equipment before lifting.

RT125Q Operator’s Manual

Lift

Reel Carrier

Use crane capable of supporting the equipment's size and weight. See

“Specifications” on page 193 or measure and

weigh equipment before lifting.

RT125Q Operator’s Manual

Tie Down

Tie Down

Transport - 87

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Points

Tiedown points are identified by tiedown decals. Securing to trailer at other points is unsafe and can damage machinery.

Procedure

Tractor

Attach chains at front and rear tiedown points.

Ensure chains are tight before transporting unit.

t48om009w.eps

Centerline Trencher

Lower trencher to trailer deck and chain at attachment frame and through boom. Ensure chains are tight before transporting.

IMPORTANT: If trencher is equipped with a trench cleaner, ensure that trench cleaner shoe is fully raised and extra bolt

(found in operator’s manual compartment) is installed in appropriate hole for additional support.

t33om087w.eps

Transport - 88

Traversing Trencher

Lower trencher to trailer deck and chain at attachment frame and through boom. Ensure chains are tight before transporting.

IMPORTANT: If trencher is equipped with a trench cleaner, ensure that trench cleaner shoe is fully raised and extra bolt

(found in operator’s manual compartment) is installed in appropriate hole for additional support.

t33om088w.eps

Combo

Lower attachment to trailer deck and chain at attachment frame and vibrator box. Ensure chains are tight before transporting.

NOTICE:

• Engage attachment stow lock and swing lock devices in addition to securing at tiedowns.

• Unsecured plow can swing outside the trailer and become a traffic hazard. Lower plow and chain to trailer deck before hauling.

• If trencher is equipped with a trench cleaner, ensure that trench cleaner shoe is fully raised and extra bolt (found in operator’s manual compartment) is installed in appropriate hole for additional support.

t33om027w.eps

RT125Q Operator’s Manual

Tie Down

RT125Q Operator’s Manual

Tie Down

Plow

Lower plow to trailer deck and chain at attachment frame and vibrator box. Ensure chains are tight before transporting.

NOTICE:

• Engage attachment stow lock and swing lock devices in addition to securing at tiedowns.

• Unsecured plow can swing outside the trailer and become a traffic hazard. Lower plow and chain to trailer deck before hauling.

Reel Carrier

Lower reel carrier to lowest position and tie down at attachment arms. Ensure chains are tight before transporting.

Transport - 89

Transport - 90

Haul

RT125Q Operator’s Manual

Haul

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

To help avoid injury:

• Read trailer operator’s manual before loading or transporting your machine. Incorrectly loaded machine can slip or cause trailer sway.

• Ensure that tow vehicle has proper tow capacity rating.

• Attach trailer to tow vehicle before loading or unloading.

• Park, load, and unload trailer on level ground.

• Check that unit and trailer do not exceed size or weight regulations.

• Load trailer correctly to avoid trailer sway. Ten to fifteen percent of total vehicle weight (equipment plus trailer) must be on tongue to help prevent trailer sway.

• Connect safety chains to tow vehicle. Attach left chain to right side of tow vehicle and vice versa to cradle hitch. Do not connect to pintle hook or hitch ball.

• Connect breakaway switch cable to tow vehicle. Do not connect to pintle hook or hitch ball.

Procedure

Inspect Trailer

1.

Check hitch for wear and cracks. Lubricate if needed.

2.

Check battery for 12V charge.

3.

Inspect lights for cleanliness and correct operation. Inspect reflectors and replace if needed.

4.

Check trailer tire pressure. Check lug nut torque with a torque wrench. Adjust if needed.

5.

Ensure trailer brakes are adjusted to come on in synchronization with tow vehicle brakes.

6.

Check ramps and trailer bed for cracks.

RT125Q Operator’s Manual

Haul

Load

Transport - 91

Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away.

To help avoid injury:

• Attach trailer to tow vehicle before loading or unloading.

• Load and unload trailer on level ground.

• Block trailer wheels.

• Put ground drive control into neutral. Turn off ignition. Set parking brake.

Rollover possible. If machine rolls over, you could be thrown from seat and killed or crushed. Wear seat belt.

275-303

1.

Fasten and adjust seat belt with seat facing forward.

2.

Tilt steering column down.

3.

Start tractor. See page 78 for proper start-up procedures.

4.

Raise attachments, but keep them low and centered. Check that they are not in float.

5.

Release parking brake.

6.

Move ground drive switch to low.

7.

Slow engine to low throttle and slowly drive tractor onto trailer. See “Center Console” on page 34 for

more information.

8.

Position tractor on trailer deck for proper weight distribution.

9.

Set parking brake and verify that parking brake indicator is on.

10. Lower attachments to trailer bed and turn tractor off. See page 81 for proper shutdown procedures.

11. Attach chains to tractor and attachments where tiedown decals are located. See page 87.

Transport - 92

Unload

RT125Q Operator’s Manual

Haul

Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away.

To help avoid injury:

• Attach trailer to tow vehicle before loading or unloading.

• Load and unload trailer on level ground.

• Block trailer wheels.

Rollover possible. If machine rolls over, you could be thrown from seat and killed or crushed. Wear seat belt.

275-303

1.

Lower trailer or ramps.

2.

Set parking brake and verify that parking brake indicator is on.

3.

Check that ground drive controls are in neutral.

4.

Remove chains from tiedowns.

5.

Fasten and adjust seat belt.

6.

Tilt steering column down.

7.

Start tractor. See page 78 for proper start-up procedures.

8.

Raise attachments, but keep them low and centered. Check that they are not in float.

9.

Release parking brake.

10. Slow engine to low throttle and slowly back unit down trailer or ramps. See “Center Console” on page 34 for more information.

RT125Q Operator’s Manual

Retrieve

Retrieve

Transport - 93

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Under normal conditions, tractor should not be towed. If unit becomes disabled and retrieval is necessary:

• tow for no more than 200 yd (180 m) at less than 1 mph (1.6 km/h),

• use towing chains appropriately rated for maximum towing force,

• steering will be difficult.

Procedure

1.

Set parking brake.

2.

Block front and rear tracks to prevent unit from rolling.

3.

Attach tow line to all available tie-down points facing towing vehicle.

4.

Activate the tow valve (shown).

• Remove floor plate.

• Locate two hex-shaped relief valves.

• Turn each valve (whole hex) counterclockwise three complete revolutions.

t48om010w.eps

NOTICE: Do not turn tow

valve more than three revolutions.

• Replace floor plate.

5.

Remove blocks.

6.

Fasten seat belt and adjust seat belt.

7.

Release parking brake.

8.

After towing, turn tow valve clockwise three complete revolutions.

Transport - 94

RT125Q Operator’s Manual

Retrieve

RT125Q Operator’s Manual

Chapter Contents

Set Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Position Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

Prepare Backhoe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Move Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

Finish Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Backhoe - 95

Backhoe

Backhoe - 96

Setup

EMERGENCY SHUTDOWN - Turn ignition switch to STOP.

RT125Q Operator’s Manual

Setup

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

To help avoid injury: Use attachments or counterweights to make front and rear loads balance when all attachments are raised. Contact your Ditch Witch

®

dealer about counterweighting for your equipment.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

To help avoid injury: Comply with all utility notification regulations before digging or drilling.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Position Tractor

1.

Fasten and adjust seat belt.

2.

Start tractor. See page 78 for start-up procedures.

3.

Drive to starting point. Move in line with planned job. See page 79 for driving procedures.

4.

Ensure ground drive direction control is in neutral.

5.

Move attachment speed/direction control to neutral position.

6.

Move ground drive control to neutral position.

7.

Set ground drive motor speed to low.

8.

Lower rear attachment to 6” (150 mm) above ground.

9.

Lower backfill blade, if equipped.

10. Turn ignition switch to STOP.

11. Move to backhoe operator’s station.

RT125Q Operator’s Manual

Setup

Prepare Backhoe

1.

Disengage seat lock (shown) and rotate seat out of stowed position.

2.

Remove swing lock pin from hole (1) and store in hole (2).

3.

Raise boom to release tension on stow lock.

4.

Release stow lock by pushing handle forward. For more information about stow

lock, see page 57.

Backhoe_Seat_32016.eps

Backhoe - 97

Backhoe - 98

Operate

RT125Q Operator’s Manual

Operate

Breathing crystalline silica dust may cause lung disease.

Cutting, drilling, or working materials such as concrete, sand, or rock containing quartz may result in exposure to silica dust. Use dust control methods or appropriate breathing protection when exposed to silica dust.

To help avoid injury:

• Use water spray or other means to control dust.

• Refer to U.S. Department of Labor Occupational Safety and Health Administration guidelines to learn more about appropriate breathing protection and permissible exposure limits.

Electric shock will cause death or serious injury. Stay away.

274-049

To help avoid injury: Expose lines by hand before digging. Cutting high voltage cable can cause electrocution.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

1.

Clear the area around the machine of all bystanders.

2.

Start tractor using remote ignition control from backhoe console. For more information about backhoe

controls, see page 57.

3.

Lower stabilizers until they touch the ground.

4.

Adjust throttle to desired speed.

RT125Q Operator’s Manual

Operate

5.

Use boom/swing control and bucket/ dipper control to dig hole or trench. For more information about backhoe controls,

see “Backhoe Console” on page 57. Keep

dipper and boom at right angles as much as possible for maximum power.

• Keep bucket in line with dipper as much as possible.

• Position bucket so teeth cut soil. As soil is cut, curl bucket under dipper.

• Move dipper and bucket together.

Increasing engine speed will not increase backhoe force.

Move Unit

NOTICE: Only use this method to move

unit less than 30’ (10 m) at one time.

1.

Clear the area around the machine of all bystanders.

2.

Raise stabilizers enough to clear ground.

3.

Ensure ground drive direction control is in neutral.

4.

Move attachment speed/direction control to neutral position.

5.

Move ground drive control to neutral position.

6.

Use remote ground drive switch to move unit.

7.

Lower stabilizers.

Backhoe - 99

Backhoe - 100

Finish Job

1.

Raise stabilizers fully to engage latch.

2.

Return remote throttle to low.

3.

Lift boom while keeping dipper pointed at ground (shown).

RT125Q Operator’s Manual

Finish Job

4.

Curl bucket closed and move dipper fully toward boom (shown).

5.

Lift boom to highest position and latch stow lock.

6.

Lower boom slightly to engage lock.

7.

Engage swing lock. See page 59.

IMPORTANT: For tractor to function once operator has returned to operator station, stabilizers must be raised, remote throttle must be set at low, and boom must be stowed and locked.

RT125Q Operator’s Manual

Finish Job

8.

Rotate seat into stowed position and engage seat lock (shown).

9.

Drive a short distance away from work site.

See page 79 for driving procedures.

10. Shut down tractor. See page 81 for proper

shutdown procedures.

Backhoe_Seat_32016.eps

Backhoe - 101

Backhoe - 102

RT125Q Operator’s Manual

Finish Job

RT125Q Operator’s Manual

Chapter Contents

Set Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Finish Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Trench - 103

Trench

Trench - 104

Set Up

EMERGENCY SHUTDOWN - Turn ignition switch to STOP.

RT125Q Operator’s Manual

Set Up

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

To help avoid injury: Use attachments or counterweights to make front and rear loads balance when all attachments are raised. Contact your Ditch Witch

®

dealer about counterweighting for your equipment.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

To help avoid injury: Comply with all utility notification regulations before digging or drilling.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

RT125Q Operator’s Manual

Set Up

1.

If using optional trench cleaner, remove bolt installed for transport (shown).

2.

Fasten and adjust seat belt.

3.

Start tractor. See page 78 for start-up

procedures.

4.

Drive to starting point. Move in line with

planned trench. See page 79 for driving

procedures.

IMPORTANT:

• When cutting asphalt, start trench in soil at edge of road and use shortest possible boom at full depth.

• Sight along center of hood to a stake driven beyond end of trench line for straight trench.

• For optimal spoils delivery, adjust the auger positions forward or backward to accommodate terrain and digging depth.

t33om080w.eps

5.

Set parking brake and verify parking brake indicator is on.

6.

Move ground drive switch to low.

7.

Tilt steering wheel column up.

8.

Turn seat to desired position.

9.

Engage axle lock.

10. Lower boom to just above ground.

11. Check that attachment speed/direction control is in neutral.

12. Check that boom is in line with planned trench.

13. Lower backfill blade, if equipped, to reduce shock when trenching begins.

Trench - 105

Trench - 106

Operate

RT125Q Operator’s Manual

Operate

Breathing crystalline silica dust may cause lung disease.

Cutting, drilling, or working materials such as concrete, sand, or rock containing quartz may result in exposure to silica dust. Use dust control methods or appropriate breathing protection when exposed to silica dust.

To help avoid injury:

• Use water spray or other means to control dust.

• Refer to U.S. Department of Labor Occupational Safety and Health Administration guidelines to learn more about appropriate breathing protection and permissible exposure limits.

Electric shock will cause death or serious injury. Stay away.

274-049

To help avoid injury: Expose lines by hand before digging. Cutting high voltage cable can cause electrocution.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Flying objects thrown by machine may strike people.

Wear hard hat and safety glasses.

275-193

1.

If equipped with combo, set trench/plow switch to the trench position.

2.

If equipped with traversing trencher, set at desired offset position.

RT125Q Operator’s Manual

Operate

Trench - 107

3.

Move attachment speed/direction control to desired speed. DIGGING CHAIN WILL MOVE.

Moving digging teeth will cause death or serious injury. Stay away.

275-443

To help avoid injury:

• Ensure parking brake is set.

• Allow 3’ (1 m) between digging teeth and obstacle. Machine might jerk when digging starts.

• Keep everyone at least 6’ (2 m) from machine, attachments, and their range of movement.

4.

Set throttle to full engine speed.

5.

Lift trench cleaner, if equipped.

6.

Slowly lower digging boom to desired trench depth.

7.

Raise backfill blade, if equipped.

8.

Release parking brake.

9.

If using trench cleaner:

• Use ground drive foot control to move forward about 1’ (30 cm), or until there is enough room for trench cleaner to enter trench.

• Return ground drive control to neutral to stop forward movement.

• Raise boom slightly, then fully lower trench cleaner to lock it in place.

• Lower boom to desired trench depth.

NOTICE:

• Do not have trench cleaner in working position when starting a trench.

• Do not back up with trench cleaner in working position.

10. Move ground drive hand control to desired speed. Always start trenching with ground drive speed set at low. Increase ground drive speed only as soil conditions permit.

IMPORTANT: Ground drive speed/direction can be controlled with foot pedal or hand lever.

When trenching, set ground drive speed with hand lever. Use foot pedal to temporarily adjust speed if digging conditions change for a short distance.

Trench - 108

RT125Q Operator’s Manual

Finish Job

11. Operate engine at full throttle when working.

NOTICE:

• Do not make sharp turns. Lower boom to full depth when turning.

• If an object becomes lodged in chain, move attachment speed/direction control to neutral and raise boom slightly. Reverse chain direction. If object must be removed manually, turn engine off and set parking brake.

Finish Job

1.

When trench is complete, move ground drive hand control to neutral.

2.

Adjust throttle to low.

3.

Raise boom.

4.

As boom clears top of trench, move attachment speed/direction control to neutral.

5.

If equipped with traversing trencher, return trencher to center position.

6.

Raise trench cleaner.

7.

Return seat to the drive position.

8.

Tilt steering wheel column down.

9.

Disengage axle lock. After disengaging axle lock, drive tractor in reverse 6’ (2 m) to fully disengage.

10. Drive a short distance away from work site. See page 79 for driving procedures.

11. Shut down tractor. See page 81 for proper shutdown procedures.

12. Stow trench cleaner.

RT125Q Operator’s Manual

Chapter Contents

Set Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Adjust Arbor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110

Prepare to Plow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Operate Reel Winder. . . . . . . . . . . . . . . . . . . . . . . 112

Finish Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Reel Carrier - 109

Reel Carrier

CMW

Reel Carrier - 110

Set Up

RT125Q Operator’s Manual

Set Up

Crushing weight. If load falls or moves it could kill or crush you. Use proper procedures and equipment or stay away.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Adjust Arbor

1.

Lower reel carrier.

2.

Choose arbor position.

NOTICE: Arbor position is

determined by weight of reel.

• Maximum weight of position 1 is

3000 lb (1361 kg).

• Maximum weight of position 2 is

2700 lb (1225 kg).

3.

Turn ignition switch to STOP.

4.

Install arbor (3) into spool.

5.

Secure arbor into correct position.

1

t48om055w.eps

2

3

2

1

t48om054w.eps

CMW

RT125Q Operator’s Manual

Set Up

6.

After installing arbor, latch retainers

(shown).

Prepare to Plow

1.

Fasten and adjust seat belt.

2.

Start tractor. See page 78 for start-up

procedures.

3.

Drive to beginning of planned plow path.

See page 79 for driving procedures.

NOTICE: Large reels of conduit or

cable may obstruct the forward visibility of the operator. Machines with limited forward visibility should be driven only for short distances and with the help of a spotter. t48om056w.eps

4.

Set parking brake and verify parking brake indicator is on.

5.

Lower backfill blade, if equipped.

Reel Carrier - 111

CMW

Reel Carrier - 112

Operate Reel Winder

RT125Q Operator’s Manual

Operate Reel Winder

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

1.

Lower plow attachment.

2.

Turn ignition switch to STOP.

3.

Attach service line to reel. away.

Moving parts could cut off hand or foot. Stay

4.

Start tractor.

5.

Move reel winder selector switch to activate reel winder control functions.

6.

Lower reel winder arm until track meets reel flange.

7.

Wind service line.

Finish Job

1.

When finished winding, raise reel winder arm.

2.

Adjust throttle to low.

3.

Move reel winder selector switch to activate backfill blade controls.

4.

Raise backfill blade, if equipped.

5.

Release parking brake.

6.

Follow directions in “Plow” on page 117 to begin plowing.

CMW

RT125Q Operator’s Manual

Chapter Contents

Set Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Finish Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Saw - 113

Saw

Saw - 114

Set Up

EMERGENCY SHUTDOWN - Turn ignition switch to STOP.

RT125Q Operator’s Manual

Set Up

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

To help avoid injury: Use attachments or counterweights to make front and rear loads balance when all attachments are raised. Contact your Ditch Witch

®

dealer about counterweighting for your equipment.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

To help avoid injury: Comply with all utility notification regulations before digging or drilling.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

1.

Fasten and adjust seat belt.

2.

Start tractor. See page 78 for start-up procedures.

3.

Drive to starting point. Move in line with planned job. See page 79 for correct operating procedures.

4.

Set parking brake and verify parking brake indicator is on.

5.

Move ground drive control to low.

6.

Tilt steering wheel column up.

7.

Turn seat to desired position.

8.

Engage axle lock.

9.

Lower saw to just above ground. See “Right Console” on page 36 for information on operating saw.

10. If equipped with traversing saw, set at desired offset position.

RT125Q Operator’s Manual

Operate

Operate

Saw - 115

Breathing crystalline silica dust may cause lung disease.

Cutting, drilling, or working materials such as concrete, sand, or rock containing quartz may result in exposure to silica dust. Use dust control methods or appropriate breathing protection when exposed to silica dust.

To help avoid injury:

• Use water spray or other means to control dust.

• Refer to U.S. Department of Labor Occupational Safety and Health Administration guidelines to learn more about appropriate breathing protection and permissible exposure limits.

Electric shock will cause death or serious injury. Stay away.

To help avoid injury: Expose lines by hand before digging. Cutting high voltage cable can cause electrocution.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Flying objects thrown by machine may strike people.

Wear hard hat and safety glasses.

275-193

1.

Lower stabilizer until distance from bottom of skid shoe to bottom of saw bits equals desired trench

depth. For more information about stabilizer controls, see page 57.

2.

Ensure that saw is aligned with planned trench and that tracks are pointing straight ahead.

3.

Adjust throttle to low.

Saw - 116

RT125Q Operator’s Manual

Finish Job

4.

Move attachment speed/direction control to desired speed. SAW WILL TURN.

Stay away.

Moving digging teeth will cause serious injury or death.

To help avoid injury:

• Allow 3’ (1 m) between digging teeth and obstacle. Machine may jerk when digging starts.

• Keep everyone at least 10’ (3 m) from machine, attachments, and their range of movement.

5.

Slowly lower saw to trench depth.

NOTICE: Ensure that stabilizers are in contact with the ground while sawing. Failure to use

stabilizers correctly will damage equipment.

6.

Release parking brake.

7.

Increase engine speed to full throttle.

8.

Move ground drive hand control to desired trenching speed.

NOTICE:

• Lower saw into softer material then move into harder or abrasive material. For example, lower saw into dirt at shoulder before cutting across road.

• Saw use is not recommended for soft, wet, or sticky soil conditions.

IMPORTANT: If a curved trench must be cut, make a series of straight cuts.

Finish Job

1.

When trench is complete, adjust throttle to low.

2.

Raise saw and stabilizers.

3.

As saw clears top of trench, move attachment speed/direction control to neutral.

4.

If equipped with traversing saw, return trencher to center position.

5.

Return seat to the drive position.

6.

Tilt steering wheel column down.

7.

Disengage axle lock. After disengaging axle lock, drive tractor in reverse 6’ (2 m) to fully disengage.

8.

Drive a short distance away from work site.

9.

Shut down tractor. See page 81 for proper shutdown procedures.

RT125Q Operator’s Manual

Chapter Contents

Set Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Position Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Attach Product. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Prepare Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120

Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Special Plowing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

Finish Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Plow - 117

Plow

Plow - 118

Set Up

EMERGENCY SHUTDOWN - Turn ignition switch to STOP.

RT125Q Operator’s Manual

Set Up

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

To help avoid injury: Keep everyone at least 6’ (2 m) from machine, attachments, and their range of movement.

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

To help avoid injury: Comply with all utility notification regulations before digging or drilling.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

To help avoid injury: Use attachments or counterweights to make front and rear loads balance when all attachments are raised. Contact your Ditch Witch

®

dealer about counterweighting for your equipment.

RT125Q Operator’s Manual

Set Up

Position Tractor

IMPORTANT: If material must be at a constant depth, dig starting and target trenches.

1.

Fasten and adjust seat belt.

2.

Start tractor. See page 78 for start-up procedures.

3.

Drive to starting point. Move in line with planned trench.

4.

Set parking brake and verify parking brake indicator is on.

5.

Lower backfill blade, if equipped.

6.

If equipped with combo, set trench/plow switch to the plow position.

7.

Lower plow to starting point of trench.

8.

Turn ignition switch to STOP.

Attach Product

Pull Product

1.

Insert material into pulling grip.

2.

Tape grip with duct tape.

Plow - 119

Plow - 120

RT125Q Operator’s Manual

Set Up

Feed Product

NOTICE: Use only genuine Ditch Witch

® cable guide.

1.

Remove cable guide.

2.

Feed cable through tube from top to bottom.

3.

Replace cable guide and tighten fasteners.

4.

Secure cable.

Prepare Tractor

1.

Fasten and adjust seat belt.

2.

Start tractor.

3.

Adjust to low throttle.

4.

Release parking brake.

5.

Move ground drive control to low.

6.

Lower reel carrier to operating position, if equipped.

NOTICE: Use extreme caution when operating reel carrier on sloped surfaces.

7.

Raise backfill blade, if equipped.

8.

Tilt steering wheel column up.

9.

Turn seat to desired position.

10. Engage axle lock.

RT125Q Operator’s Manual

Operate

Operate

Plow - 121

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

Electric shock will cause death or serious injury. Stay away.

274-049

To help avoid injury: Expose lines by hand before digging. Cutting high voltage cable can cause electrocution

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

NOTICE: Do not drive backward with plow in the ground.

1.

If equipped with combo, ensure that the trench/plow switch is in the plow position.

2.

Move ground drive hand control forward to plowing speed and lower plow blade into ground.

NOTICE: Do not drive in reverse with plow blade in the ground.

3.

Move plow lift control to float.

4.

Move plow swing control to float.

5.

Increase engine speed to full throttle.

6.

Move attachment speed/direction control forward to start plow vibration. PLOW WILL VIBRATE.

NOTICE: Do not operate vibrator unless plow is in the ground.

7.

Reduce attachment speed to a point with the least tractor vibration and the highest ground drive speed possible without track slippage. Adjust vibrator speed if ROPS vibrates excessively.

8.

Check cable for damage during plowing.

Plow - 122

Special Plowing

Your Ditch Witch

®

equipment allows you to plow four ways: normal plowing, offset plowing

(1), coordinated plowing (2), and crabbing (3).

NOTICE: Oversteering blade may damage

blade or cable.

RT125Q Operator’s Manual

Operate

Offset Plow

Offset plowing can be used to plow next to a road while keeping tracks on a more stable surface or in similar conditions.

1.

Use plow swing to move plow to planned trench line.

2.

Use blade steer to position blade parallel to direction of tractor frame.

Coordinated Plow

Coordinated plowing can be used to turn a tight circle around a jobsite obstacle or in similar conditions.

1.

Move rear steer mode selector switch to the rear steer position.

2.

Use the rear steer switch to position the tracks as shown above (2).

3.

Slowly move tractor forward.

4.

Plow as normal.

IMPORTANT: When coordinated plowing, keep plow blade straight or in the same angle position as rear tracks.

Crab Plow

Crab plowing can be used to plow along edge of jobsite or in similar conditions.

1.

Move rear steer mode selector switch to the rear steer position.

2.

Use the rear steer switch to position the tracks as shown above (3).

3.

Slowly move tractor forward.

4.

Plow as normal.

5.

RT125Q Operator’s Manual

Finish Job

Finish Job

1.

When installation is complete, move plow swing and plow lift out of float.

2.

With vibrator running, raise plow to ground level while reducing vibrator speed.

Plow - 123

NOTICE: Do not operate vibrator when plow is out of the ground.

3.

Move attachment speed/direction control to neutral.

4.

Return seat to the drive position.

5.

Tilt steering wheel column down.

6.

Set parking brake and verify parking brake indicator is on.

7.

Lower backfill blade, if equipped.

8.

Turn ignition switch to STOP and remove product from plow.

9.

Turn ignition switch to ON.

10. Swing plow to center position and engage swing lock and stow lock.

11. Release parking brake.

12. Raise backfill blade, if equipped.

13. Disengage axle lock. After disengaging axle lock, drive tractor in reverse 6’ (2 m) to fully disengage.

14. Drive a short distance away from work site.

15. Shut down tractor. See page 81 for proper shutdown procedures.

Plow - 124

RT125Q Operator’s Manual

Finish Job

RT125Q Operator’s Manual

Chapter Contents

Set Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Dig Approach Trench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

Dig Target Trench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

Install Drill String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Drill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

Start Bore with Drill String Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

• Add

Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131

Backream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132

Install Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

Remove Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134

Finish Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Disassemble Drill String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136

Remove Drilling Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136

Drill - 125

Drill

Drill - 126

Set Up

EMERGENCY SHUTDOWN - Turn ignition switch to STOP.

RT125Q Operator’s Manual

Set Up

Jobsite hazards could cause death or serious injury. Use correct equipment and work methods. Use and maintain proper safety equipment.

To help avoid injury:

• Comply with all utility notification regulations before digging or drilling.

• Set up warning barriers and keep people away from machine and jobsite.

• Do not operate drilling attachment if bore path is less than 10’ (3 m) from any underground hazard.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Dig Approach Trench

1.

Mark path where you intend to drill.

2.

Dig an approach trench (1) along the intended bore path.

IMPORTANT: Ensure that approach trench is:

• deep enough for pipe to lay flat and enter soil at correct angle;

• at least 20’ (6 m) long;

• at least 4” (100 mm) wide.

RT125Q Operator’s Manual

Set Up

Dig Target Trench

1.

Select a completion point for the bore.

2.

Dig a target trench (2) across the intended completion point.

Drill - 127

IMPORTANT: Ensure that target trench is:

• deep enough for drill bit to enter slightly above the trench floor;

• long enough to allow for drift of unguided drill string. Accuracy of bore decreases with length and varies with soil conditions.

Install Drill String

1.

Assemble at least 20’ (6 m), but not more than 30’ (9 m), of drill rod sections.

2.

Install drill bit to the cutting end of the drill string.

3.

Put drill string in approach trench and align with intended bore path.

NOTICE: Incorrect installation can cause rod sections to bend.

• Have more than half of drill string length inside trench.

• If necessary, remove rod sections or increase length of trench.

4.

Start engine and set to low throttle. See “Start Unit” on page 78.

5.

Lower boom in parallel position to ground.

6.

Move machine toward approach trench.

7.

Shut down engine. See “Shut Down” on page 81.

8.

Install drilling attachment to backfill blade.

9.

Connect hydraulic lines.

Drill - 128

Operate

RT125Q Operator’s Manual

Operate

Breathing crystalline silica dust may cause lung disease.

Cutting, drilling, or working materials such as concrete, sand, or rock containing quartz may result in exposure to silica dust. Use dust control methods or appropriate breathing protection when exposed to silica dust.

To help avoid injury:

• Use water spray or other means to control dust.

• Refer to U.S. Department of Labor Occupational Safety and Health Administration guidelines to learn more about appropriate breathing protection and permissible exposure limits.

Electric shock will cause death or serious injury. Stay away.

274-049

To help avoid injury: Expose lines by hand before digging. Cutting high voltage cable can cause electrocution.

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

Flying objects thrown by machine may strike people.

Wear hard hat and safety glasses.

275-193

RT125Q Operator’s Manual

Operate

Drill

Drill - 129

Rotating shaft will cause death or serious injury. Stay away.

To help avoid injury:

• Keep everybody at least 10’ (3 m) away from drill string and machine.

• If a person enters the danger zone, use emergency shutdown.

• Wear close-fitting clothing and the applicable personal protective equipment.

1.

Evaluate jobsite conditions. If you determine it is necessary, have helper use drill string guide to align

drill string as it enters the soil. See “Start Bore with Drill String Guide” on page 130.

2.

Start engine and set to low throttle.

3.

Operate drilling attachment controls to start clockwise rotation. See “Drill Controls” on page 62.

4.

Slowly move machine forward while maintaining rotation.

• When length of bore is more than 5’ (1.5 m), you may carefully and slowly increase speed.

• Always use lowest speed necessary.

5.

Carefully monitor progress of bore:

• If rod section starts to bow, stop forward movement of machine and back machine slightly until rod straightens.

• If drill string becomes blocked, rotate drill string counterclockwise to back up slightly.

NOTICE: Incorrect drilling will damage drilling equipment.

• Do not drill too quickly. Drilling bit will drift off course and rod sections may bow or break.

• Do not drill with bent rod section.

6.

When drill bit enters target trench, stop rotation immediately.

IMPORTANT: After initial bore is complete, choose the next task:

Backream to enlarge bore. See “Backream” on page 132.

Pull drill string to install product. See “Install Product” on page 133.

Drill - 130

RT125Q Operator’s Manual

Operate

Start Bore with Drill String Guide

If jobsite conditions make it necessary, ask a helper to follow the instructions below to operate the drill string guide at start of bore.

Rotating shaft will cause death or serious injury. Stay away.

To help avoid injury:

• Use only the approved Ditch Witch

®

drill string guide (p/n 118-079).

• Do not straddle trench or drill string. Do not enter trench.

• Keep hands and feet away from drill string and drilling attachment.

• Do not use drill string guide during backreaming or when drill string is being pulled back.

• Only use drill string guide on left side of approach trench. t48om059w.eps

1.

Stand on left side of approach trench.

2.

Put drill string guide in correct position:

• at least 3’ (1 m) behind drill bit

• hook side toward bore

• cradle side toward machine

3.

When drill string guide is in correct position, signal machine operator to start bore.

4.

Use drill string guide to control the first 5’ (1.5 m) of the bore path.

5.

When length of bore is 5’ (1.5 m), have machine operator stop machine.

6.

When drill string has stopped, remove drill string guide and leave danger area.

RT125Q Operator’s Manual

Operate

Add Rod

If more length is needed, ask a helper to add a rod section.

Drill - 131

Rotating shaft will cause death or serious injury. Stay away.

To help avoid injury: Only access drilling attachment with hands when engine is shut down.

Disconnect Drill String from Drilling Attachment

1.

Operate controls to stop rotation of drilling attachment.

2.

To loosen drill string in ground, operate ground drive controls to move machine rearward 6” (15 cm).

3.

Shut down engine.

4.

Disconnect drill string from drilling attachment with applicable special tool (p/n 351-272). See

“Disassemble Drill String” on page 136.

5.

Start engine.

6.

Operate ground drive controls to move unit rearward, slightly more than length of rod section.

Add Rod Section

1.

Shut down engine.

2.

Have helper connect new rod section to drilling attachment.

3.

Start engine and set to low throttle.

4.

Slowly move machine forward until new rod section and drill string are about 1’ (30 cm) apart.

5.

Have helper lightly hold new rod section and drill string so that they are aligned.

Pinch point. Crushing will cause serious injury.

To help avoid injury:

• Keep hands at least 6” (15 cm) from ends of rod section and drill string.

• Support rods from underneath with open palms. Do not grip rods.

6.

Rotate drilling attachment to align slip latches of new rod section and drill string.

7.

Move unit forward slowly. As soon as new rod section engages drill string, have helper move hands clear.

8.

Slightly move forward until the slip latch connection is correctly latched.

Drill - 132

RT125Q Operator’s Manual

Operate

Backream

After drill bit enters target trench, the bore hole may be enlarged by changing the drill bit to a reamer and pulling it back through the initial bore.

NOTICE: Incorrect use may damage components and increase wear.

• Do not try to increase hole size too much in one pass. Make several passes using successively larger reamers.

• Keep drill string straight and aligned with drilling attachment. Sharp bends can cause rod failure.

• Never have more than 30’ (9 m) of exposed rod outside the bore. Remove rods as necessary.

Single Pass

1.

Shut down engine.

2.

Remove drill bit and install applicable reamer.

3.

Start engine and begin clockwise rotation.

IMPORTANT: Always rotate clockwise during backreaming. Rotate counterclockwise only if drill bit or reamer is blocked in bore.

4.

Slowly back up machine while maintaining rotation.

IMPORTANT: If length of rod outside the bore reaches 30’ (9 m), remove rod section. See

“Remove Rod” on page 134.

5.

When reamer exits the approach trench, stop rotation immediately.

Multiple Passes

1.

Do a single pass.

2.

Install drill bit.

3.

Push drill string through bore. Do not rotate.

4.

Do a single pass. At final pass, install product. See “Install Product” on page 133.

RT125Q Operator’s Manual

Operate

Install Product

To install product, pull it through the bore after drilling or final pass of backreaming.

Drill - 133

Rotating shaft will cause death or serious injury. Stay away.

To help avoid injury: Ensure no one is in target trench or near product being installed. If swivel malfunctions, material can rotate.

1.

Install applicable swivel (2) to drill string

(1) or reamer. Ensure swivel functions correctly.

2.

Use shackle (3) to attach pipe pulling adapter (4) or pulling grip (5) to swivel.

3.

Attach material to pipe pulling adapter or pulling grip.

4.

Set engine to low throttle.

5.

Slowly back up machine. If there is a blockage, begin counterclockwise rotation.

IMPORTANT: If length of rod outside the bore reaches 30’ (9 m), remove

rod section. See “Remove Rod” on page 134.

6.

When product exits approach trench, stop machine immediately.

Drill - 134

RT125Q Operator’s Manual

Operate

Remove Rod

If the length of rod outside the bore reaches 30’ (9 m), ask a helper to remove rod sections as needed.

Rotating shaft will cause death or serious injury. Stay away.

To help avoid injury:

• Only access drill string with hands when engine is shut down.

• Always remove second rod (as shown). Leave first rod section attached to drilling attachment. t48om060w.eps

Remove Rod Section

1.

Operate controls to stop rotation of drilling attachment.

2.

Shut down engine.

3.

Disconnect and remove applicable rod section with applicable special tool (p/n 351-272). See

“Disassemble Drill String” on page 136.

RT125Q Operator’s Manual

Operate

Reconnect Drill String

Drill - 135

1.

Start engine and set to low throttle.

2.

Slowly move machine forward until attached rod section and drill string are about 1’ (30 cm) apart.

3.

Have helper lightly hold attached rod section and drill string so that they are aligned.

Pinch point. Crushing will cause serious injury.

To help avoid injury:

• Keep hands at least 6” (15 cm) from ends of rod section and drill string.

• Support rods from underneath with open palms. Do not grip rods.

4.

Rotate drilling attachment to align slip latches of new rod section and drill string.

5.

Move unit forward slowly. As soon as new rod section engages drill string, have helper move hands clear.

6.

Slightly move forward until the slip latch connection is correctly latched.

Drill - 136

Finish Job

Disassemble Drill String

1.

Shut down engine.

2.

Disconnect drill string from drilling attachment.

3.

Remove drill bit.

4.

Disconnect sections:

• Press tab through hole in female side of joint (1) using special tool

(p/n 351-272).

• Pull rod sections apart (2).

Remove Drilling Attachment

1.

Disconnect hydraulic hoses if necessary.

2.

If desired, remove drilling attachment from backfill blade.

RT125Q Operator’s Manual

Finish Job

RT125Q Operator’s Manual

Systems and Equipment - 137

Systems and Equipment

Chapter Contents

Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Operate Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138

Chain, Teeth, and Sprockets . . . . . . . . . . . . . . . . 140

Chain and Tooth Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

Chain Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

Chain Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . 142

RT125Q Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

BH120 Backhoe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

CT120H/ST120H Trencher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

VP120Q Plow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

RS40 Saw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

Counterweighting . . . . . . . . . . . . . . . . . . . . . . . . . 143

Systems and Equipment - 138

RT125Q Operator’s Manual

Cruise Control

Cruise Control

Cruise control is a standard feature that allows the unit to automatically adjust ground drive speed according to digging conditions. In easier soil conditions, the ground drive speed will increase. When the unit encounters difficult soil conditions, the ground drive speed will decrease.

Operate Cruise Control

EMERGENCY SHUTDOWN - Turn ignition switch to STOP.

Trenching

IMPORTANT: See “Left Console” on page 51 for more information about controls.

1.

Set ground drive control and ground drive direction control to neutral.

2.

Ensure ground drive speed control is in low.

3.

Ensure cruise control is off.

4.

Move cruise control speed dial control to arrow at center.

5.

Turn cruise control selector switch on and ensure that cruise control indicator lights.

6.

Following procedures on page 106, begin trenching to desired depth.

7.

When desired depth is reached, set to high throttle.

8.

Slowly move ground drive control forward.

9.

Slowly adjust cruise control speed dial control to match digging conditions.

10. When finished trenching, move ground drive control to neutral and turn cruise control off.

11. Allow chain to dig itself free before stopping attachment.

RT125Q Operator’s Manual

Cruise Control

Plowing

Systems and Equipment - 139

IMPORTANT: See “Left Console” on page 51 for more information about controls.

1.

Set ground drive control to neutral.

2.

Ensure ground drive speed control is in low.

3.

Ensure cruise control is off.

4.

Set ground drive hand control to maximum speed suitable for digging conditions.

5.

Turn cruise control selector switch on and ensure that cruise control indicator lights.

6.

Slowly adjust cruise control speed dial control to match digging conditions.

7.

When finished trenching, move ground drive control to neutral and turn cruise control off.

Systems and Equipment - 140

RT125Q Operator’s Manual

Chain, Teeth, and Sprockets

Chain, Teeth, and Sprockets

Chain and Tooth Maintenance

• Always replace sprockets at the same time you replace the digging chain. Sprockets and chain are designed to work together. Replacing one without the other will cause premature wear of the new part.

• Keep digging teeth sharp. Using dull, worn teeth will decrease production and increase shock load to other trencher components. It can also cause chain stretch, which leads to premature chain wear and failure.

• Maintain the proper amount of tension on the digging chain. Overtightening will cause chain stretch

and loss of machine performance. For correct tightening procedure, see page 163.

• Use the tooth pattern most appropriate for your digging conditions. If you move to a different soil type, contact your Ditch Witch

®

dealer for information about the most effective chain type and tooth pattern.

Chain Types

Chain Selection

These charts are meant as a guideline only. No one chain type works well in all conditions. See your Ditch

Witch dealer for soil conditions and chain recommendations for your area. Ask for the latest Chain, Teeth, and Sprockets Parts Catalog.

• 1 = best

• 2 = better

• 3 = good

• 4 = not recommended

Chain

Chain type

4-pitch

2-pitch alternating side bar bolt-on adapters

Shark

®

Chain II combination

Features

standard chain more teeth for smoother cutting prevents spoil compaction on chain allow easy configuration changes versatile, virtually maintenance-free provides pick and shovel effect

4-pitch cup tooth

2-pitch cup tooth bolt-on adaptor, 2-pitch

3

2

4

Sandy

Soil

1

3

Soft Soil Medium

Soil

4

2

1

3

Hard Soil

3

1

2

4

3

1

Rocky

Soil

1

4

4

Sticky

Soil

RT125Q Operator’s Manual

Chain, Teeth, and Sprockets

Chain

Systems and Equipment - 141

4

Sandy

Soil

Soft Soil Medium

Soil

3 2

Hard Soil

1 2

Rocky

Soil

4

Sticky

Soil

bolt-on adaptor/cup tooth combo

Shark

®

Chain II alternating side bar

4

4

3

4

2

4

1

4

1

4

4

1

Soil

sandy soil soft soil medium soil hard soil rocky soil sticky soil

Description

sugar sand, blow sand, or other soils where sand is the predominant component sandy loam loams, loamy clays packed clays, gumbo, all compacted soils chunk rock, glacial till, cobble, rip rap, gravel gumbo, sticky clays

Systems and Equipment - 142

RT125Q Operator’s Manual

Optional Equipment

Optional Equipment

See your Ditch Witch

®

dealer for more information about the following optional equipment.

RT125Q Tractor

Equipment

backup alarm light kit

BH120 Backhoe

Description

alarm sounds when tractor is in reverse mounts to ROPS and includes work lights and hazard light

Equipment

bucket width

Description

12-24” (305-610 mm) buckets available

CT120H/ST120H Trencher

Equipment

booms hydraulic trench cleaner long auger extensions

VP120Q Plow

Description

several boom length options are available removes spoils from the trench floor for conditions that require spoils to be moved farther from the trench

Equipment

blades toes bullets

RC30 reel carrier

RS40 Saw

Equipment

cutting bit types

Description

several blade options are available stabilize the plow for more constant depth allow a larger cavity for the material being installed designed to fit your Ditch Witch equipment and speed cable installation

Description

rotating, self-sharpening conical bit with spring retainer, or carbide cap or carbide insert available.

RT125Q Operator’s Manual

Counterweighting

Counterweighting

Systems and Equipment - 143

Attachment Counterweight required

CT120H trencher

1300 lb (590 kg) nose weight required. 250 lb (113 kg) each side weight optional.

ST120H trencher

1300 lb (590 kg) nose weight required. 250 lb (113 kg) each side weight optional.

PT120Q combo

1300 lb (590 kg) nose weight required. 250 lb (113 kg) each side weight optional.

RC30 reel carrier

No counterweight required.

RS40 saw

VP12Q plow

NOTICE: Using counterweights can void tractor warranty.

Contact Ditch Witch

®

dealer for correct counterweighting.

1300 lb (590 kg) nose weight required. 900 lb (408 kg) rear counterweight optional.

Systems and Equipment - 144

RT125Q Operator’s Manual

Counterweighting

RT125Q Operator’s Manual

Complete the Job - 145

Complete the Job

Chapter Contents

Restore Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Backfilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146

Rinse Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 146

Stow Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Complete the Job - 146

RT125Q Operator’s Manual

Restore Jobsite

Restore Jobsite

After product is installed, return spoils to the trench with optional backfill blade.

Backfilling

1.

Ensure the seat is facing forward or in the 60°

position. See “Seat pivot control” on page 55.

2.

Position unit at end of trench, several feet from spoils. Aim tractor at outer edge of spoils.

3.

Adjust backfill blade to fit land contour.

4.

Move outer edge of spoils toward trench.

Take two or more passes at spoils rather than moving all spoils at once.

5.

Repeat on other side of trench, if necessary.

6.

Engage float and make final pass over trench.

Rinse Equipment

Spray water onto equipment to remove dirt and mud.

NOTICE:

• Do not spray water onto operator’s console. Electrical components could be damaged. Wipe down instead.

• Ensure all mud and debris is rinsed from operator’s station floor.

• Ensure all mud and debris is rinsed from tracks before parking unit overnight.

Stow Tools

Ensure all tools and accessories are loaded and properly secured on trailer.

RT125Q Operator’s Manual

Chapter Contents

Service Precautions . . . . . . . . . . . . . . . . . . . . . . . 148

Welding Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148

Washing Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148

Changing Attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148

Lubrication Overview . . . . . . . . . . . . . . . . . . . . . . 149

Recommended Lubricants/Service Key . . . . . . . 150

Engine Oil Temperature Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151

Approved Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152

Approved Fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152

Diesel Exhaust Fluid (DEF). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153

Exhaust Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154

10 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

50 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

100 Hour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

250 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

500 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

1000 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

2000 Hour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

As Needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Service - 147

Service

Service - 148

Service Precautions

RT125Q Operator’s Manual

Service Precautions

Read operator’s manual. Follow safety rules and know how to use all controls. Your safety is at stake.

273-475

To help avoid injury:

• Unless otherwise instructed, all service should be performed with engine off.

• Refer to engine manufacturer’s manual for engine maintenance instructions.

• Lower unstowed attachments to ground before servicing equipment.

Welding Precaution

NOTICE: Welding can damage electronics.

• Disconnect battery at battery disconnect switch, if equipped, or disconnect battery cables before welding to prevent damage to battery.

• Do not turn off battery disconnect switch with engine running or alternator and other electronic devices may be damaged.

• Welding currents can damage electronic components. Always disconnect the ECU ground connection from the frame, harness connections to the ECU, and other electronic components prior to welding on machine or attachments. Connect welder ground close to welding point and ensure no electric components are in the ground path.

Washing Precaution

NOTICE: Water can damage electronics. When cleaning equipment, do not spray electrical components

with water.

Changing Attachments

The RT125Q is programmed to operate with the original attachment configuration. If you change attachments, contact your Ditch Witch

®

dealer to ensure the electronic programming is updated. If you change attachments without updating the electronic programming, your attachment may not function correctly.

RT125Q Operator’s Manual

Lubrication Overview

Lubrication Overview

1000 h

500 h

250 h

100 h

50 h

10 h

Service - 149

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Service - 150

RT125Q Operator’s Manual

Recommended Lubricants/Service Key

Recommended Lubricants/Service Key

Item

Tier 4

DEO

Description

Diesel engine oil meeting or exceeding Deutz

®

specification DQC III- LA.

If oil meeting DQCIII-LA is not available, absolute minimum requirement is oil meeting API CJ-4 or ACEA

E6/E9.

Engine must use low sulfated ash, phosphorous, and sulfur (low SAPS) oil.

If oils meeting only API CJ-4 or ACEA E6/E9 are used, service interval is reduced to 250 hours.

See viscosity chart.

MPG

EPG

MPL

Shipped from factory with API CJ-4 DEO meeting Deutz specification DQC II-LA.

Change oil initially at 250 hours.

Multipurpose grease.

Use polyurea based NLGI GC‐LB Grade 1.5 or lithium based NLGI 

GC‐LB Grade 2.

Extreme pressure grease.

Use polyurea based NLGI GC‐LB Grade 1.5 or lithium based 

NLGI GC‐LB Grade 2, with extreme pressure additives.

Multipurpose gear oil meeting API service classification GL-5 (SAE 80W90)

THF

Tractor hydraulic fluid, similar to Phillips 66

®

HG, Mobilfluid

®

423, Chevron

®

Tractor

Hydraulic Fluid, Texaco

®

TDH Oil, or equivalent

DEAC Low silicate, nitrite free, fully formulated diesel engine antifreeze/coolant meeting Deutz specification DQC CB-14.

Check level of fluid or lubricant

Filter Change, replace, adjust, service or test

Proper lubrication and maintenance protects Ditch Witch

®

equipment from damage and failure. Service intervals listed are for minimum requirements. In extreme conditions, service machine more frequently.

Use only genuine Ditch Witch parts, filters, approved lubricants, TJC, and approved coolants to maintain

warranty. Fill to capacities listed in “Specifications” on page 193.

For more information on engine lubrication and maintenance, see your engine manual.

IMPORTANT: Use the “Service Record” on page 217 to record all required service to your machine.

RT125Q Operator’s Manual

Recommended Lubricants/Service Key

Engine Oil Temperature Chart

SAE 5W-30

SAE 5W-40

SAE 10W-30

SAE 10W-40

SAE 15W-30

SAE 15W-40

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Temperature range anticipated before next oil change

Service - 151

Service - 152

RT125Q Operator’s Manual

Recommended Lubricants/Service Key

Approved Coolant

This unit was filled with coolant meeting Deutz

®

DQC CB-14 before shipment from factory. Add or replace only with coolant meeting this specification. This coolant is available, pre-diluted, from your Ditch Witch dealer as part number 255-1053. Contact your Deutz service partner for a full list of approved coolants meeting DQC CB-14. In an emergency, non-Deutz approved, heavy duty diesel engine coolant meeting

ASTM D6210 may be used. Change to DQC CB-14 coolant as soon as practical.

NOTICE:

• Use only pre-diluted coolant or concentrated coolant mixed with distilled water. Do not use tap water.

• Do not use water or high-silicate automotive-type coolant. This will lead to engine damage or premature engine failure.

• Do not mix heavy-duty diesel engine coolant and automotive-type coolant. This will lead to coolant breakdown and engine damage.

Approved Fuel

Avoid static electricity when fueling. Ultra Low Sulfur Diesel (ULSD) poses a greater static ignition hazard than earlier diesel formulations. Avoid death or serious injury from fire or explosion. Consult with your fuel system supplier to ensure the delivery system is in compliance with fueling standards for proper grounding and bonding practices.

Tier 4 Engine (U.S., Canada, EU, and Japan)

This engine is designed to run on diesel fuel. Use only high quality fuel meeting ASTM D975 No. 2D,

EN590, or equivalent. At temperatures below 32°F (0°C) winter fuel blends are acceptable. See the engine operation manual for more information.

NOTICE: Use only Ultra Low Sulfur Diesel (less than 15 ppm (15 mg/kg) sulfur content) in this unit.

Operating with higher sulfur content will damage the engine and aftertreatment device.

Biodiesel blends up to 5% (B5) are approved for use in this unit. The fuel used must meet the specifications for diesel fuel shown above. In certain markets, higher blends may be used if certain steps are taken. Extra attention is needed when using biodiesel, especially when operating in cold weather or storing fuel. Contact your Ditch Witch

®

dealer or the engine manufacturer for more information.

RT125Q Operator’s Manual

Recommended Lubricants/Service Key

Diesel Exhaust Fluid (DEF)

Service - 153

Incorrect procedures could result in death, injury, or property damage. Learn to use equipment correctly.

To help avoid injury:

• Diesel exhaust fluid is corrosive. Avoid spills. If spill occurs wipe clean immediately.

• Avoid contact with skin. If contact occurs, rinse with water immediately.

• Avoid contact with eyes. If contact occurs, seek medical help immediately.

• Avoid ingestion. If ingested, seek medical help immediately.

This engine requires diesel exhaust fluid (DEF) to meet emission regulations. Use only high quality DEF meeting ISO 22241-1 or DIN 70070 requirements. Running this engine without DEF will increase exhaust emissions and cause engine to derate. Do not dilute or contaminate DEF or substitute other fluids.

Tampering with the DEF system will increase exhaust emissions and cause the engine to derate.

DEF has other common names such as Urea, AUS 32, AdBlue, NOx Reduction Agent, and Catalyst

Solution.

DEF freezes at 11.3°F (-11.5°C) but the system is designed to prevent freezing during normal operation. If

DEF freezes in the tank when the engine is shut down, the system will quickly thaw DEF when engine is started.

DEF has a limited shelf life. In ideal conditions, minimum expected shelf life is 18 months. At temperatures higher than 90°F (32°C), DEF will degrade more rapidly. Do not store in direct sunlight.

Storage and transfer equipment must be compatible with DEF. Most materials (especially hoses) are not compatible and will degrade and contaminate DEF. Never use contaminated DEF. Containers made of polyethylene or polypropylene are recommended.

This machine will consume DEF at a rate between 2 and 3% of diesel consumption. Many factors affect consumption rate, but a good rule of thumb is to fill the DEF tank every other time the diesel tank is filled.

Service - 154

RT125Q Operator’s Manual

Recommended Lubricants/Service Key

Exhaust Cleaning

IMPORTANT: See “Exhaust Cleaning” on page 50.

This engine has a Selective Catalytic Reduction (SCR) system that uses a small amount of DEF to convert

NOx emissions in the exhaust into nitrogen and water. The SCR system may require periodic cleaning.

Sensors in the engine monitor the exhaust status. When a cleaning cycle is needed, the system will create the following pop-up message: “Exhaust cleaning needed soon. Failure to clean will result in power loss. Park unit away from combustible materials, set engine to low throttle, engage parking brake, and activate cleaning process through the main menu.” The exhaust cleaning icon will also flash. An operator may choose to hide and ignore this message. If so, the icon will continue to flash and the message will reappear after fifteen minutes.

If the operator continues to ignore the cleaning request, a second pop-up message will appear with the following message: “Exhaust cleaning needed. Failure to clean will result in severe power loss and engine service. Engine power reduced by 25%. Park unit away from combustible materials, set engine to low throttle, engage parking brake, and activate cleaning process

!

through the main menu.” The exhaust cleaning icon will flash and the engine caution icon will appear. An operator may choose to hide and ignore this message. If so, the icons will continue to display and the message will reappear after five minutes.

If the operator continues to ignore the cleaning request, a third pop-up message will appear with the following message: “Exhaust service required. Engine derating activated. Exhaust cleaning request ignored. Contact Deutz

®

service.” The exhaust cleaning and the engine stop icons will flash. An operator may choose to hide and ignore this message. If so, the icons will continue to display and the message will reappear after one minute.

Once the operator starts the exhaust cleaning cycle, adjusting the throttle or releasing the parking brake will terminate the cycle. A typical cycle will take approximately 35 minutes. A pop-up message will display the remaining time in the cycle. The high exhaust temperature icon may also light.

The frequency of exhaust cleaning is dependent upon working conditions. In general, operating in hotter conditions and higher loads with lengthen the time between cleaning cycles. The engine monitors the elapsed time since the previous cleaning and will request a cleaning when that time reaches 1050 hours.

RT125Q Operator’s Manual

10 Hour

10 Hour

Location

TRACTOR

Task

Check engine oil level

Check hydraulic fluid level and reservoir cap

Check hydraulic hoses

Check coolant level

Check radiator

TRENCHER

Lube trencher tail roller

Lube trencher pivot stub

Lube trencher auger bearings

Lube trencher auger sleeve

Check trencher auger bolts

Check boom mounting bolts

Check attachment mounting bolts

Check restraint bar position

Check trench cleaner position (if equipped)

Check personnel restraint bar/trench cleaner bolts

PLOW

COMBO

SAW

Check digging chain

Check digging chain tension

Lube plow pivots

Check plow vibrator oil level

Check plow arm pins and bushings

Check plow connector pivots

Check attachment mounting bolts

Complete all service items for trencher and plow

Check attachment mounting bolts

Check bits

Notes

DEO

THF

DEAC

EPG

EPG

EPG

EPG

Service - 155

250 ft•lb (339 N•m)

200 ft•lb (271 N•m)

350 ft•lb (475 N•m)

EPG

MPL

200 ft•lb (271 N•m)

Service - 156

Tractor

Check Engine Oil Level

IMPORTANT: See “Recommended Lubricants/

Service Key” on page 150.

Check engine oil at dipstick (1) before operation and every 10 hours thereafter. Add DEO at fill (2) as necessary to keep oil level at highest line on dipstick.

Check Hydraulic Fluid Level and

Reservoir Cap

With frame level, check fluid at sight glass (2) every 10 hours. Maintain fluid level on midway point on sight glass. Add THF at fill (1) as needed.

Check hydraulic reservoir cap (1) every 10 hours.

Clean as needed. t48om012w.eps

1

RT125Q Operator’s Manual

10 Hour

2

1

2

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RT125Q Operator’s Manual

10 Hour

Check Hydraulic Hoses

Service - 157

Pressurized fluid or air could pierce skin and cause severe injury. Refer to operator’s manual for proper use.

To help avoid injury:

• Use a piece of cardboard or wood, rather than hands, to search for leaks.

• Wear protective clothing, including gloves and eye protection.

• Before disconnecting a hydraulic line, turn engine off and operate all controls to relieve pressure.

• Lower, block, or support any raised component with a hoist.

• Cover connection with heavy cloth and loosen connector nut slightly to relieve residual pressure.

Catch all fluid in a container.

• Before using system, check that all connections are tight and lines are undamaged.

• If you are injured, seek immediate medical attention from a doctor familiar with this type of injury.

Check all hydraulic hoses every 10 hours.

Service - 158

Check Coolant Level

Check coolant level, with engine cool and unit on level ground, at sight glass (shown) of expansion tank every 10 hours. Maintain coolant level so that coolant is visible in sight glass and no higher than bottom of fill neck. If low, add approved coolant. Do not overfill.

IMPORTANT: See “Approved Coolant” on page 152 for more information.

Check Radiator

Check radiator for dirt and debris every 10 hours of. Clean with compressed air or spray wash as

needed. See “Clean Radiator” on page 183.

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RT125Q Operator’s Manual

10 Hour

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RT125Q Operator’s Manual

10 Hour

Trencher

Lube Trencher Tail Roller

Wipe zerks clean and lube every 10 hours with

EPG. Lube roller zerks on both sides of boom.

Lube Trencher Pivot Stub

Wipe five zerks located on right of trencher pivot clean and lube every 10 hours with EPG.

Wipe four zerks located on left of trencher pivot clean and lube every 10 hours with EPG.

Service - 159

Service - 160

Lube Trencher Auger Bearings

Lube two auger bearing zerks (one on each side) every 10 hours with EPG.

RT125Q Operator’s Manual

10 Hour

Lube Trencher Auger Sleeve

Lube four auger shaft zerks (two on each side) every 10 hours with EPG.

Check Trencher Auger Bolts

Check trencher auger bolts every 10 hours. For optimal spoils delivery, adjust augers to match terrain and digging depth.

RT125Q Operator’s Manual

10 Hour

Check Boom Mounting Bolts

Check 14 bolts (7 on each side) every 10 hours and tighten as necessary to keep bolts and other fasteners tight. Check for looseness or wear.

Check that bolts are tightened to 250 ft•lb (28

N•m).

Check Attachment Mounting Bolts

Check bolts every 10 hours and tighten as necessary to keep bolts and other fasteners tight.

Check for looseness or wear. Apply Loctite

®

271 adhesive. Check that bolts are tightened to 200 ft•lb (271 N•m).

Check Restraint Bar Position

Check restraint bar position every 10 hours, or anytime the digging chain is adjusted or replaced.

The restraint bar is properly positioned when the end of bar extends between the center of the tail roller/sprocket and the end of the digging chain.

Check for looseness or wear.

Tighten bolts as necessary to keep them tight.

Bolts mounting arm to boom should be tightened to 400 ft•lb (542 N•m). Apply Loctite 271 adhesive.

t33om89w.eps

Service - 161

Service - 162

Check Trench Cleaner Position

Check trench cleaner position (if equipped) every

10 hours, or anytime the digging chain is adjusted or replaced. The trench cleaner is properly positioned when there is 3-4 in (76-102 mm) between the digging teeth and the inside of the trench cleaner shoe (A).

Check that bolts holding personnel restraint bar/ trench cleaner to arm are tightened to 350 ft•lb

(475 N•m). Apply Loctite 271

®

adhesive.

Check Personnel Restraint Bar/Trench

Cleaner Bolts

t33om90w.eps

Check all bolts that mount restraint bar/trench cleaner to arm every 10 hours and tighten as necessary to keep bolts tight. Check for looseness or wear. Apply Loctite

®

271 adhesive.

Check that bolts holding personnel restraint bar/ trench cleaner to arm are tightened to 350 ft•lb

(475 N•m). Bolts mounting arm to boom should be tightened to 400 ft•lb (542 N•m).

RT125Q Operator’s Manual

10 Hour

RT125Q Operator’s Manual

10 Hour

Check Digging Chain

Service - 163

Check teeth (1) for wear every 10 hours. Replace worn teeth, using Ditch Witch

®

replacement parts and maintaining original tooth pattern.

Check chain every 10 hours. Replace worn or broken chains. If sidebars (2) are bent or loose on chain pins (3), chain spacers should be used to join sidebars.

If using rock chain bits, check that bits rotate freely. Clean chain and check bits after each use.

Replace bit when carbide cap or insert is worn or adapter can be damaged.

For more efficient digging, contact your Ditch Witch dealer for information about the tooth pattern best suited to your jobsite.

Check Digging Chain Tension

Check digging chain tension every 10 hours.

Sprocket Boom

Tension is correct when 2” (50 mm) of slide and stop (3) are exposed. Adjust tension with boom horizontal by tightening or loosening adjustment screws (2) and jam nuts (1).

Service - 164

Roller Boom with Adjusting Screw

With boom horizontal, measure distance from bottom of boom to chain (3). When properly adjusted, distance should be 1.5-2” (40-50 mm).

Adjust tension by tightening or loosening adjustment screw (1) and jam nut (2).

RT125Q Operator’s Manual

10 Hour

Roller Boom with Grease Cylinder

With boom horizontal, measure distance from bottom of boom to chain (2). When properly adjusted, distance should be 1.5-2.0” (40-50 mm).

Pressurized fluid or air could pierce skin and cause severe injury. Refer to operator’s manual for proper use.

To help avoid injury:

• Service digging boom grease cylinder only while standing on opposite side of boom.

• Wear gloves and safety glasses, and cover fitting with cloth when relieving pressure in cylinder.

To tighten chain, remove plug and pump MPG into cylinder (1). To relieve chain tension, loosen plug on grease cylinder.

RT125Q Operator’s Manual

10 Hour

Plow

Lube Plow Pivots

Lube plow pivots every 10 hours with EPG.

Check Plow Vibrator Oil Level

Hot parts may cause burns. Do not touch until cool or wear gloves.

Check plow vibrator oil on each side of vibrator every 10 hours. With vibrator horizontal, oil should be halfway up sight glass (2). Add MPL as needed at fill (1).

Service - 165

Service - 166

Check Plow Arm Pins and Bushings

Check plow arm pins and bushings every 10 hours. Tighten as needed.

RT125Q Operator’s Manual

10 Hour

Check Plow Connector Pivots

Visually check pivots every 10 hours for wear or damage.

Check Attachment Mounting Bolts

Check mounting bolts every 10 hours and tighten as necessary to keep bolts and other fasteners tight. Check for looseness or wear. Apply Loctite

®

271 adhesive. Check that bolts are tightened to

200 ft•lb (271 N•m).

RT125Q Operator’s Manual

10 Hour

Saw

Check Saw Mounting Bolts

Check attachment mounting bolts every 10 hours.

Tighten to 200 ft•lb (271 N•m).

Check Bits

Check bits every 10 hours. Clean and check bits for free rotation. If bits are stuck, remove and clean packed soil from retaining ring. Replace bit when tungsten cap or insert is worn. See

“Replace Bits” on page 192 for more information.

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Service - 167

Service - 168

50 Hour

Location

TRACTOR

Task

Lube track pivot bearings

Lube cross and bearings

Lube universal joints

TRENCHER

Check trencher gearbox oil level

Lube frame slide

PLOW

COMBO

Change plow vibrator oil

Complete all service items for trencher and plow

Tractor

Lube Track Pivot Bearings

Lube track pivot bearings at zerk (shown) every 50 hours with EPG.

RT125Q Operator’s Manual

50 Hour

Notes

EPG

Initial service, EPG

Initial service, EPG

MPL

MPG

Initial service, MPL

Lube Cross and Bearings (Initial

Service)

Lube cross and bearings at zerks (shown) at 50 hours initially and every 250 hours thereafter with

EPG. t48om018w.eps

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RT125Q Operator’s Manual

50 Hour

Lube Universal Joints (Initial Service)

Lube universal joints (shown) at zerks at 50 hours initially and every 250 hours thereafter with EPG.

Trencher

Check Trencher Gearbox Oil Level

Check oil at sight glass (shown) every 50 hours.

Keep oil level at horizontal line on housing. If necessary, add MPL at fill plug.

t48om022w.eps

Service - 169

Service - 170

Plow

Change Plow Vibrator Oil

Change plow vibrator oil after first 50 hours of operation and every 500 hours thereafter.

To change:

RT125Q Operator’s Manual

Hot parts may cause burns. Do not touch until cool.

To help avoid injury: Do not drain oil from plow vibrator when hot. Let vibrator cool before removing drain plug.

1.

Open fill (1) to vent vibrator.

2.

Drain oil at drain plug (2).

3.

Replace plug and move plow vibrator to horizontal position.

4.

Add MPL at fill until oil is halfway up sight glass (2). Refill capacity is 4 qt (3.8 L).

50 Hour

RT125Q Operator’s Manual

100 HOUR

100 HOUR

Location

TRACTOR

PLOW

Task

Check track tension

Inspect track rollers and sprocket

Check plow shear mounts

Test plow connector pivots

Tractor

Check Track Tension

Check track tension every 100 hours.

To check:

1.

View adjustment window (3). If red is showing, adjust track belt.

To adjust:

1

2

1.

Loosen jam nut (1).

2.

Tighten belt with adjuster nut (2) until red is no longer visible in adjustment window.

3.

Tighten jam nut. t48om020w.eps

Inspect Track Rollers and Sprocket

Inspect track rollers and sprocket for wear every

100 hours. Replace as needed.

Notes

Service - 171

3

t48om021w.eps

Service - 172

Plow

Check Shear Mounts

Check shear mounts for wear every 100 hours.

Replace as needed.

IMPORTANT: When replacing shear mounts, it is important to compress the shear mounts with the washers to prevent the shear mount from tearing.

RT125Q Operator’s Manual

100 HOUR

Test Plow Connector Pivots

Test upper and lower connector pivots every 100 hours.

To test upper pivot:

1.

Lower plow to ground.

2.

Use plow lift control to put hydraulic load on pivot joints. Do not raise plow.

3.

As hydraulic load is applied and released, visually check joints for motion. If motion is observed, contact your Ditch Witch

®

dealer.

To test lower pivot:

1.

Lower plow to ground.

2.

Use hydraulic jack to place load on lower arm.

3.

As hydraulic load is applied and released, visually check joints for motion. If motion is observed, contact your Ditch Witch dealer.

IMPORTANT: Lower plow blade to ground and visually inspect bushings and joints. Replace bushings if there is excessive motion.

RT125Q Operator’s Manual

250 Hour

250 Hour

Location

TRACTOR

Task

Change engine oil and filter

Lube cross and bearings

Lube universal joints

Lube axle spindle pins

Check ground drive gearbox oil level

Check differential oil level

Lube planetary wheel ends

Tractor

Change Engine Oil and Filter

IMPORTANT: See “Recommended

Lubricants/Service Key” on page 150.

1

Change engine oil and filter every 250 hours.

To change:

1.

While oil is warm, remove drain plug (3).

Drain oil and replace plug.

2.

Remove filter (1) and replace with new filter each time oil is changed. Add DEO at fill neck

(2) until oil level is at highest capacity on dipstick. Capacity is 8.4 qt (8 L).

3

t48om019w.eps

Notes

DEO

EPG

EPG

EPG

MPL

MPL

MPL

Service - 173

2

Service - 174

Lube Cross and Bearings

Lube cross and bearings at zerks (shown) every

250 hours with EPG.

RT125Q Operator’s Manual

250 Hour

Lube Universal Joints

Lube universal joints (shown) at zerks every 250 hours with EPG.

t48om064w.eps

Lube Axle Spindle Pins

Lube axle spindle pins every 250 hours with EPG.

t48om022w.eps

t48om023w.eps

RT125Q Operator’s Manual

250 Hour

Check Ground Drive Gearbox Oil Level

Check oil level at fill (shown) every 250 hours.

Keep level at raised horizontal line on gearbox.

Add MPL as needed.

Check Differential Oil Level

Check oil level at fill (shown) every 250 hours.

Add MPL as needed.

t48om024w.eps

Check Planetary Wheel End Oil

Level

t48om025w.eps

Remove track to check oil level in planetary wheel ends every 250 hours. Add MPL as needed.

t48om026w.eps

Service - 175

Service - 176

500 Hour

Location

TRACTOR

PLOW

Task

Change fuel filters

Change hydraulic fluid and filter

Test coolant freeze protection level

Change DEF filter

Change plow vibrator oil

Tractor

Change Fuel Filters

Change fuel filters (shown) every 500 hours.

RT125Q Operator’s Manual

500 Hour

Notes

THF

MPL

Change Hydraulic Fluid and Filter

Change hydraulic fluid and filter every 500 hours. t48om027w.eps

2

NOTICE: If normal operating temperature

exceeds 100°F (38°C) 50% of the time, change every 250 hours.

To change:

1.

Remove drain plug (1).

2.

Drain fluid and replace plug.

3.

Change filter (2).

4.

Add THF at fill (3).

1

t48om028w.eps

3

RT125Q Operator’s Manual

500 Hour

Test Coolant Freeze Protection Level

With engine cool, test coolant freeze protection level using a hydrometer or refractometer.

Recommended freeze protection level is -34°F

(-37°C). Adjust as needed.

If colder temperatures are expected, consult your

Ditch witch

®

dealer or coolant supplier.

IMPORTANT: See “Approved Coolant” on page 152 for more information.

Use pre-dilluted coolant to maintain proper freeze protection.

t48om015w.eps

Change DEF Filter

Change DEF filter every 500 hours.

To change:

1.

Remove DEF filter cover.

2.

Pull out DEF filter insert and compensation body.

3.

Insert new DEF filter insert and compensation body and ensure both are seated correctly.

4.

Replace cover and torque to 15-18 ft•lb

(20-25 N•m). t48om068w.eps

Service - 177

3

2

Service - 178

Plow

Change Plow Vibrator Oil

NOTICE: If normal operating temperature

exceeds 100°F (38°C), change plow vibrator oil every 250 hours.

Change plow vibrator oil every 500 hours.

To change:

RT125Q Operator’s Manual

Hot parts may cause burns. Do not touch until cool.

To help avoid injury: Do not drain oil from plow vibrator when hot. Let vibrator cool before removing drain plug.

1.

Open fill (1) to vent vibrator.

2.

Drain oil at drain plug (2).

3.

Replace plug and move plow vibrator to horizontal position.

4.

Add MPL at fill until oil is halfway up sight glass (2). Refill capacity is 4 qt (3.8 L).

500 Hour

RT125Q Operator’s Manual

1000 Hour

1000 Hour

Location

TRACTOR

Task

Change differential oil

Change ground drive gearbox oil

Change planetary wheel end oil

Check engine drive belt

TRENCHER

Change trencher gearbox oil

Tractor

Change Differential Oil

Change differential oil every 1000 hours.

To change:

1.

Remove drain plug (2).

2.

Drain fluid and replace plug.

3.

Add MPL until level is at fill plug (1).

t48om029w.eps

Change Ground Drive Gearbox Oil

Change ground drive gearbox oil every 1000 hours.

To change:

1.

Remove drain plug (2).

2.

Drain oil and replace plug.

3.

Add MPL until level is at fill plug (1).

1

2

t48om030w.eps

Notes

MPL

MPL

MPL

MPL

Service - 179

Service - 180

Change Planetary Wheel End Oil

Change wheel end oil every 1000 hours.

To change:

1.

Position wheel with plug at bottom.

2.

Remove plug.

3.

Drain oil.

4.

Reposition wheel with plug at midway position.

5.

Add MPL until fluid level is at plug opening.

6.

Replace plug.

Check Engine Drive Belt

Check engine drive belt every 1000 hours for

cracks and wear. If damaged, replace belt. See

“Change Engine Drive Belt” on page 182.

t48om031w.eps

RT125Q Operator’s Manual

1000 Hour

Trencher

Change Trencher Gearbox Oil

Change trencher gearbox oil every 1000 hours.

Drain at plug. Replace drain plug and add MPL until fluid level is at lowest line on sight tube. t48om017w.eps

RT125Q Operator’s Manual

2000 Hour

2000 Hour

Service - 181

Location

TRACTOR

Task

Change engine coolant

Check seatbelt and seatbelt mounting hardware

Change engine drive belt

Notes

DEAC

Tractor

Change Engine Coolant

NOTICE:

• The use of non-approved coolant may lead to engine damage or premature engine failure and will void engine warranty.

See “Approved Coolant” on page 152 for list of approved coolants.

Drain cooling system at drain (2) every two years or 2000 hours. Add approved coolant at fill (1) until fluid is visible in sight glass on expansion tank.

1

2

t48om032w.eps

Service - 182

RT125Q Operator’s Manual

2000 Hour

Inspect Seat Belt

1

Check seat belt and mounting hardware as needed. Inspect the webbing, buckle and latch, retractor, and mounting hardware. Replace any worn or damaged components.

Buckle and Latch

Check that the buckle and latch (1) are not broken or corroded. When inserting the latch into the buckle, the latch should insert smoothly until an audible click is heard. Latch should not release when the seat belt is tugged.

Webbing

t48om033w.eps

4

2

3

Inspect seat belt webbing (2) to ensure that it is not cut, frayed or showing signs of extreme or unusual wear. Check the area near the buckle and latch and anywhere the seat belt has contact with equipment or seat.

Retractor

Check that the retractor (3) operates smoothly when the belt is pulled and released. Retractor should spool belt without locking.

Mounting Hardware

Inspect the seat belt mounting bolts (4) on both sides of the seat to ensure they are tight. Replace missing, damaged, or corroded bolts.

Change Engine Drive Belt

Change engine drive belt every 2000 hours.

To change:

1.

Relieve tension on the belt (shown) by moving tension roller (1) in the direction shown until a retaining pin can be inserted into the assembly bore (2).

2.

Remove belt from tension roller.

3.

Remove belt completely.

1

2

4.

Install new belt.

5.

Holding tension roller with pin wrench, move retaining pin. t48om065w.eps

6.

Remove pin wrench, allowing tension roller to fall back into place.

7.

Tension belt using tension roller. Ensure belt is correctly seated.

RT125Q Operator’s Manual

As Needed

As Needed

Location

TRACTOR

Task

Clean radiator

Change air filter

Drain water separators and fuel filter

Check battery

Charge battery

TRENCHER

Replace digging chain

PLOW

Clean feed tube

BACKHOE

Replace sod cutter and blade

Check plow blade bolts

Replace pins and bushings

Tractor

Clean Radiator

Clean out radiator fins with compressed air or spray wash if required. Be careful not to damage fins with high-pressure air or water. Check more often if operating in dusty or grassy conditions.

Notes

Service - 183

210 ft•lb (285 N•m) t48om034w.eps

Service - 184

RT125Q Operator’s Manual

As Needed

Change Air Filter

Change air filter when pop-up message appears.

To change:

1.

Remove air filter cover and remove primary

(1) and secondary (2) elements.

2.

Wipe inside of housing and wash cover.

3.

Insert new secondary element and ensure it is seated correctly.

4.

Insert new primary element.

5.

Replace cover. If cover does not fit, element is not properly locked into housing. Remove cover and primary element and repeat step 4.

1

t48om063w.eps

NOTICE: Improperly installed primary element can lead to premature engine failure.

2

Drain Water Separators and Fuel Filter

Drain water separators and fuel filter as needed.

WIF (water in fuel) indicator will indicate need.

Drain at plug as needed until water is removed and fuel runs from drain.

t48om035w.eps

RT125Q Operator’s Manual

As Needed

Check Battery

Check battery as needed. Keep battery clean and terminals free of corrosion.

To clean:

1.

Turn battery disconnect switch, if equipped, to the off position.

2.

Ensure that no ignition sources are near batteries.

3.

Loosen and remove battery cable clamps carefully, negative (-) cable first.

4.

Clean cable clamps and terminals to remove dull glaze.

5.

Check for signs of internal corrosion in cables.

6.

Connect battery cable clamps, positive (+) cable first.

7.

Tighten any loose connections.

8.

Ensure that battery tiedowns are secure.

9.

Turn battery disconnect switch to the on position.

Service - 185

Explosion possible. Serious injury or equipment damage could occur.

Follow directions carefully.

To help avoid injury: Do not create sparks and do not short across battery terminals for any reason.

Service - 186

Charge Battery

RT125Q Operator’s Manual

As Needed

Explosion possible. Serious injury or equipment damage could occur.

Follow directions carefully.

To help avoid injury:

• Use a single 12V maximum source for charging. Do not connect to rapid chargers or dual batteries.

• Use caution and wear personal protective equipment such as safety eyewear, when charging or cleaning battery.

• Keep sparks, flames, and any ignition source away from batteries at all times. Internal contents are extremely hazardous. Leaking fluid is corrosive. Battery may be explosive at higher temperatures.

• NEVER lean over battery when making connections.

• Do not allow vehicles to touch when charging.

• Do not attempt to charge a battery that is leaking, bulging, heavily corroded, frozen, or otherwise damaged.

• NEVER short-circuit battery terminals for any reason or strike battery posts or cable terminals.

• Refer to MSDS for additional information regarding this battery.

Before You Start

Electronic components can be easily damaged by electrical surges. Jump starting can damage electronics and electrical systems, and is not recommended. Try to charge the battery instead. Use quality large diameter jumper cables capable of carrying high currents (400 amps or more). Cheap cables may not allow enough current flow to charge a dead/discharged battery.

Read all steps thoroughly and review illustration before performing procedure.

RT125Q Operator’s Manual

As Needed

Charging Procedure (Engine Off)

Service - 187

1.

Park service vehicle close to disabled equipment but do not allow vehicles to touch. Engage parking brake in both vehicles.

2.

Turn the ignition switch to the OFF position in both vehicles, and turn off all electrical loads. Disconnect the machine controller.

3.

Inspect battery in disabled vehicle (B) for signs of cracking, bulging, leaking, or other damage.

Connect red positive (+) jumper cable clamp to positive (+) post (2) of battery in disabled vehicle first.

IMPORTANT: Some equipment may have a positive jumper cable terminal (1) located externally.

If so equipped, connect red positive (+) jumper cable clamp to terminal.

4.

Connect the other red positive (+) jumper cable clamp to positive (+) post of battery (A) in the service vehicle.

5.

Connect black negative (-) cable clamp to negative (-) post of battery (A) in service vehicle.

6.

Connect the other black negative (-) cable clamp to the engine or frame ground on the disabled vehicle, at least 12” (305 mm) from the failed battery, as shown.

7.

Operate service vehicle engine at 1500-2000 rpm for a few minutes to build an electrical charge in the failed battery.

8.

Stop engine in service vehicle.

9.

Remove jumper cables from the service vehicle, black negative (-) clamp first. Do not allow clamps to touch.

10. Remove black negative (-) cable clamp from the disabled engine or frame ground first.

11. Remove red positive (+) cable clamp from the disabled vehicle positive (+) battery post last.

12. Reconnect machine controller and try to start disabled vehicle.

If the disabled vehicle did not start, check for loose or corroded battery cable connections. Poor connections will prevent current from charging the failed battery. Clean terminals and posts if necessary and repeat steps above.

Service - 188

RT125Q Operator’s Manual

As Needed

Trencher

Replace Digging Chain

Visually check digging chains for wear on teeth

(1), rollers, and sidebars (2). Check pins (3) and bushing wear by measuring distance between chain pins and comparing it with a new chain.

NOTICE: Replace sprockets when a new chain

is installed.

To remove chain:

1.

Fasten and adjust seat belt.

2.

Start tractor. See page 78 for proper start-up

procedures.

3.

Move attachment direction/speed control until digging chain connector pin is on top of boom.

4.

Lower boom to ground.

5.

Set parking brake and verify parking brake indicator is on.

6.

Turn ignition switch to STOP.

7.

Secure chain by clamping links on either side of connector pin with chain jaws. Squeeze jaws to reduce pressure on connector pin.

RT125Q Operator’s Manual

As Needed

8.

Loop cable through links nearest connector pin.

Service - 189

Pressurized fluid or air could pierce skin and cause severe injury. Refer to operator’s manual for proper use.

To help avoid injury:

• Service digging boom grease cylinder only while standing on opposite side of boom.

• Wear gloves and safety glasses, and cover fitting with cloth when relieving pressure in cylinder.

9.

Loosen plug on grease cylinder or turn tension bolts counterclockwise to relieve chain tension.

10. Stand clear of chain and remove lock key from connector pin. Drive connector pin out of link.

Crushing weight could cause death or serious injury. Use proper procedures and equipment or stay away.

11. Unclamp links. Slowly release cable and lower chain to ground.

12. Lay chain on ground with teeth down.

Service - 190

RT125Q Operator’s Manual

As Needed

To install chain:

1.

Lay chain on ground with teeth down and pointed toward unit.

2.

Fasten and adjust seat belt.

3.

Start tractor. See page 78 for start-up procedures.

4.

Release parking brake.

5.

Move ground drive control to reverse.

6.

Back unit up until chain extends past head shaft about 1’ (305 mm).

7.

Move ground drive control to neutral.

8.

Lower backfill blade, if equipped, to ground.

9.

Lower boom to horizontal position.

10. Set parking brake and verify parking brake indicator is on.

11. Turn ignition switch to STOP.

12. Pull rear end of chain over and about 10" (260 mm) past tail roller.

13. Use hoist to pull front end of chain over head shaft sprocket.

14. Move chain down boom until chain connector pin and lock key can be installed. Install connector pin and lock key.

15. Tighten chain by pumping EPG into grease cylinder.

Time Augers

Ensure that augers are balanced, as shown. If auger timing is off, unit will bounce from side to side even in normal digging conditions.

To adjust timing:

1.

Remove bolts holding augers to auger shaft and rotate either auger as needed until augers are balanced.

2.

Reinstall bolts and tighten securely.

RT125Q Operator’s Manual

As Needed

Plow

Clean Feed Tube

Clean feed tube as needed.

Replace Sod Cutter and Blade

Replace worn sod cutter and plow blade as needed.

Service - 191

Service - 192

Check Plow Blade Bolts

Check plow blade bolts as needed. If loose, use

Loctite® 242 (blue) and tighten bolts to 210 ft•lb

(285 N•m).

RT125Q Operator’s Manual

As Needed

Backhoe

Replace Pins and Bushings

Replace pins (1) and bushings (2) when worn or damaged.

Saw

Replace Bits

Replace bits when worn or damaged.

1.

Slide bit puller tool (p/n 259-002) onto groove in bit (shown).

2.

Pull back on weight on bit puller tool to remove bit.

3.

Install new bit.

4.

Check bit clearance. See “Check Bits” on page 167.

t48om066w.eps

RT125Q Operator’s Manual

RT125Q Tractor

RT125Q Tractor

Specifications - 193

Specifications

t48om036w.eps

L1

L2

L4

W2

W4

Dimensions

A2

H1

H2

Angle of approach

Height

Transport height

Nose to rear mount length

Length - transport

Wheelbase

Width

Tread

U.S.

34°

120 in

110 in

126.3 in

166 in

79 in

89 in

71 in

Metric

34°

3.04 m

2.79 m

3.28 m

4.22 m

2.01 m

2.26 m

1.80 m

General

Ditch Witch

®

model RT125Q tractor, 4-wheel drive, rigid frame, hydrostatic ground drive through rubber tracks, 4-wheel steering, hydrostatic attachment drive, riding unit.

Specifications - 194

RT125Q Operator’s Manual

RT125Q Tractor

Operation

Forward speeds

Low

Medium

High

Reverse speeds

Low

Medium

High

Vehicle clearance circle (SAE) wall to wall with optional backfill blade

Front steer only

Coordinated steer

Ground clearance

Basic unit weight

Maximum allowable tractor weight

Front counterweight

Side counterweight (each)

U.S.

Metric

2.0 mph

4.4 mph

7.2 mph

3.2 km/h

7.1 km/h

11.6 km/h

2.0 mph

4.4 mph

4.7 mph

3.2 km/h

7.1 km/h

7.5 km/h

42.4 ft

21.6 ft

15.5 in

15,300 lb

27,200 lb

1300 lb

250 lb

12.9 m

6.6 m

394 mm

6940 kg

12,338 kg

590 kg

114 kg

Backfill Blade (optional)

Blade width

Blade height

Lift height above ground

Blade drop below ground

Maximum swing angle (left/right)

Tilt angle (up/down)

U.S.

80 in

17 in

26 in

10 in

30°

12°

Metric

2.03 m

430 mm

660 mm

254 mm

30°

12°

RT125Q Operator’s Manual

RT125Q Tractor

Specifications - 195

Power Plant U.S.

221 in

3

Metric

Engine: Deutz

®

Tier 4 Final TCD3.6L4 diesel, direct injection, 4 cyl. turbocharged with charge air cooling and exhaust after treatment system (EAT).

Displacement 3.6 L

Bore

Stroke

Engine manufacturer’s gross power rating per SAE J1349

Estimated net power per SAE J1349

3.86 in

4.72 in

121 hp

113 hp

2300 rpm

98 mm

120 mm

90 kW

84 kW

2300 rpm Rated speed

Maximum engine tilt angles*

Longitudinal

Lateral

30°

30°

30°

30°

*Exceeding these operating angles will cause engine damage. This DOES NOT IMPLY machine is stable to maximum angle of safe engine operation.

Power Train

Ground drive: hydrostatic

Differentials: planetary front and rear with rear steering

Service brake: hydrostatic

Parking brake: disc, spring applied, hydraulic release

Tracks: 450x86x42 rubber track, chevron pattern

Attachment drive: hydrostatic, electronically-operated speed infinitely variable from zero to maximum

Hydraulic System

Ground drive pump capacity at 2300 rpm

Ground drive pump relief pressure at 2300 rpm

Attachment pump capacity at 2300 rpm

Attachment pump relief pressure at 2300 rpm

Auxiliary pump capacity at 2300 rpm

Auxiliary pump relief pressure at 2300 rpm

U.S.

47 gpm

6300 psi

45 gpm

6500 psi

5.1 gpm

3000 psi

Metric

180 L/min

434 bar

180 L/min

448 bar

19.3 L/min

206 bar

Specifications - 196

Fluid Capacities

Fuel tank

Engine oil

Hydraulic reservoir

Hydraulic system

Cooling system

DEF tank

Battery (2 used)

Group 65, SAE res. cap 165 min., SAE cold crank @ 0° F (-18° C), 875 amp

Auxiliary power outlet - 12 volt, 10 amp

RT125Q Operator’s Manual

RT125Q Tractor

U.S.

38 gal

8.5 qt

25 gal

30 gal

4.25 gal

2.6 gal

Metric

144 L

8 L

95 L

114 L

16.1 L

10 L

Vibration Level

Average vibration transmitted to the operator’s hand during normal operation is 2.9 m/s

2

.

Average vibration transmitted to the operator’s whole body during normal operation does not exceed 0.5 m/s

2

.

Operator seat complies with ISO 7096.

Noise Levels

Operator ear sound pressure level is 91 dBA per ISO 6394.

Exterior sound power level is 109 dBA per ISO 6393.

Unless otherwise specified, all figures are for standard equipment only.

Specifications are called out according to SAE recommended procedures. Specifications are general and subject to change without notice. If exact measurements are required, equipment should be weighed and measured. Due to selected options, delivered equipment may not necessarily match that described.

RT125Q Operator’s Manual

BH120 Backhoe

BH120 Backhoe

Specifications - 197

t48om045w.eps

N

P

L

M

B

J

K

F

G

C

D

Dimensions

A Transport height

Ground clearance

Backhoe length, stowed

Digging depth, max.

Digging depth, 2” (0.6 m) flat bottom

Operating height, fully raised

Loading height

Loading reach

Reach from swing pivot

Swing pivot to centerline axle

Bucket rotation

Stabilizer spread, transport

U.S.

122 in

33 in

117 in

108 in

105 in

160 in

108 in

78 in

158 in

57 in

170°

86 in

Metric

3.10 m

838 mm

2.97 m

2.74 m

2.67 m

4.06 m

2.74 m

1.98 m

4.01 m

1.45 m

170°

2.18 m

Specifications - 198

E

R

U

Backhoe or basic unit width

Stabilizer spread, operating

Leveling angle

General

Bucket

Width

Capacity

Backhoe weight with 18” (686 mm) bucket

Lift capacity, boom over end and swing arc, SAE*

@ 48” (1.2 m)

@ ground level

@ 72” (1.8 m)

Lift capacity, dipperstick over end and swing arc, SAE*

@ 52” (1.3 m)

@ 96” (2.4 m)

Swing arc

Digging force

Using bucket cylinder

Using dipperstick cylinder

*Lift capacities are for a stationary machine supported by stabilizers.

RT125Q Operator’s Manual

BH120 Backhoe

82 in

121 in

10°

2.08 m

3.07 m

10°

U.S.

Metric

12-24 in

1.7-3.5 ft

3

3300 lb

305-610 mm

0.05-.1 m

3

1497 kg

1170 lb

1250 lb

1184 lb

530 kg

567 kg

537 kg

3184 lb

2242 lb

180°

1444 kg

1017 kg

180°

6600 lb

4475 lb

2994 kg

2030 kg

RT125Q Operator’s Manual

CT120H Trencher

CT120H Trencher

Specifications - 199

t48om037w.eps

L

N

H

1

L

2

C

C

1

E

1

E

2

F

A

B

Dimensions

A

3 Angle of departure

Trench depth, maximum

Trench width, maximum

Boom travel down

Boom travel up

Centerline of trench to outside edge, left

Centerline of trench to outside edge, right

Headshaft height, digging chain

Transport height

Transport length

Headshaft overhang

Soil discharge reach

U.S.

30°

93 in

24 in

65°

50°

45.5 in

36.5 in

36 in

128 in

123.25 in

51.75 in

33 in

Metric

30°

2.36 m

610 mm

65°

50°

1.12 m

927 mm

914 mm

3.25 m

3.13 m

1.31 m

843 mm

Specifications - 200

Attachment weight

Operation

Headshaft speeds with RT125Q at 2300 engine rpm

Ratio low

Ratio standard

Ratio high (not recommended)

Digging chain speeds with RT125Q

Ratio low

Ratio standard

Ratio high (not recommended)

RT125Q Operator’s Manual

CT120H Trencher

1750 lb 794 kg

U.S.

Metric

152 rpm

203 rpm

247 rpm

152 rpm

203 rpm

247 rpm

416 ft/min

554 ft/min

672 ft/min

126 m/min

168 m/min

204 m/min

RT125Q Operator’s Manual

ST120H Trencher

ST120H Trencher

Specifications - 201

t48om038w.eps

F

H1

L2

L

N

C

C1

E1

E2

A

B

Dimensions

A3 Angle of departure

Trench depth, maximum

Trench width, maximum

Boom travel down

Boom travel up

Centerline of trench to outside edge, left

Centerline of trench to outside edge, right

Headshaft height, digging chain

Transport height

Transport length

Headshaft overhang

Soil discharge reach

U.S.

27°

90 in

24 in

65°

50°

30.5 in

19 in

39 in

130 in

134.5 in

62.5 in

33 in

Metric

27°

2.29 m

610 mm

65°

50°

775 mm

483 mm

991 mm

3.30 m

3.42 m

1.59 m

838 mm

Specifications - 202

Attachment weight

Operation

Headshaft speeds with RT125Q at 2300 engine rpm

Ratio low

Ratio standard

Ratio high (not recommended)

Digging chain speeds with RT125Q

Ratio low

Ratio standard

Ratio high (not recommended)

RT125Q Operator’s Manual

ST120H Trencher

2350 lb 1066 kg

U.S.

Metric

152 rpm

203 rpm

247 rpm

152 rpm

203 rpm

247 rpm

416 ft/min

554 ft/min

672 ft/min

126 m/min

168 m/min

204 m/min

RT125Q Operator’s Manual

PT120Q Combo

PT120Q Combo

Trencher

Specifications - 203

t48om040w.eps

D

E1

E2

N

C1

C

F

L

2

Dimensions

A Trench depth, maximum

A3

B

Angle of departure

Trench width

Boom travel up

Boom travel down

Headshaft height, digging chain

Transport length (48” boom)

Transport height (48” boom)

Center of trench to outside edge, left*

Center of trench to outside edge, right

Spoil discharge reach, minimum

U.S.

70 in

26°

6-12 in

44°

60°

31 in

111 in

96 in

13 in

76 in

19 in

Metric

1.78 m

26°

150-300 mm

44°

60°

790 mm

2.19 m

2.44 m

330 mm

1.93 m

480 mm

Specifications - 204

L Headshaft overhang

*Left edge of machine is defined as outside of digging chain guard

Operation

Maximum headshaft speed at 2300 engine rpm

Ratio low

Ratio standard

Ratio high (not recommended)

Maximum digging chain speed

Ratio low

Ratio standard

Ratio high

RT125Q Operator’s Manual

PT120Q Combo

48 in 1.22 m

U.S.

Metric

229 rpm

280 rpm

377 rpm

229 rpm

280 rpm

377 rpm

624 ft/min

763 ft/min

190 m/min

232 m/min

1027 ft/min 313 m/min

RT125Q Operator’s Manual

PT120Q Combo

Plow

Specifications - 205

t48om039w.eps

A3’

H

H2

J

Dimensions

A Cover depth*

A’

A3

Penetration*

Angle of departure, transport, 24” (610-mm) blade

Angle of departure, transport, 30” (760-mm) blade

Angle of departure, transport, no blade

Angle of depression, plow max.

Height, transport

Blade ground clearance, 30” (760-mm) blade

Attachment length, fully lowered, no blade

L2

L2’ Attachment length, fully raised, no blade

Plow swing angle, left

Plow swing angle, right

U.S.

36 in

40 in

30°

24°

47.5°

25°

93 in

24 in

97 in

78 in

43°

Metric

915 mm

1.02 m

30°

24°

47.5°

25°

2.36 m

610 mm

2.46 m

1.98 m

43°

Specifications - 206

RT125Q Operator’s Manual

PT120Q Combo

Inclusive blade steer angle

Center of plow to outside edge of machine, left

Center of plow to outside edge of machine, right

* Suggested maximum. Plow blade used will be determined by job requirements and soil conditions.

89°

41 in

48 in

Operational

Plow vibrator force @ 1800 rpm

Maximum material diameter

Pulled

Fed

U.S.

35,215 lb

3 in

2 in

89°

1.04 m

1.22 mm

Metric

156 644 kN

76 mm

51 mm

General

Attachment weight without boom, chain, or plow blade

U.S.

3465 lb

Metric

1567 kg

RT125Q Operator’s Manual

RC30 Reel Carrier

RC30 Reel Carrier

Specifications - 207

t48om041w.eps

Dimensions

L5 Distance from backfill blade to outside edge of reel carrier with maximum diameter reel.

N Maximum reel diameter

Internal width

Capacity

U.S.

86 in

96 in

54 in

3000 lb

Metric

21.8 m

2.4 m

1.37 m

1360 kg

Specifications - 208

RS40 Saw

RT125Q Operator’s Manual

RS40 Saw

t48om044w.eps

L2’

J

A3

Dimensions

A Trench depth

Trench width

D Transport height - attachment

Height - wheel on ground

Overall length - wheel on ground

Ground clearance at wheel

Angle of departure

Attachment weight

U.S.

Metric

40.5 in 1.03 m

4.5, 6, 8 in 115,150,

203 mm

130 in

102 in

129.5 in

27 in

24°

5900 lb

3.3.m

2.6 m

3.28 m

700 mm

24°

2675 kg

RT125Q Operator’s Manual

VP120Q Plow

VP120Q Plow

Specifications - 209

t48om039w.eps

H

H2

J

L2

L2’

Dimensions

A Cover depth*

A’

A3’

A3

Penetration*

Angle of departure, transport, no blade

Angle of departure, transport, 24” (610-mm) blade

Angle of departure, transport, 30” (760-mm) blade

Angle of depression, plow max.

Height transport

Blade ground clearance, 30” (760-mm) blade

Attachment length, fully lowered, no blade

Attachment length, fully raised, no blade

Plow swing angle

Inclusive blade steer angle

U.S.

36 in

40 in

47.5°

30°

24°

25°

93 in

24 in

97 in

78 in

43°

89°

Metric

915 mm

1.02 m

47.5°

30°

24°

25°

2.36 m

610 mm

2.46 m

1.98 m

43°

89°

Specifications - 210

RT125Q Operator’s Manual

VP120Q Plow

Center of plow to outside edge of machine, left

Center of plow to outside edge of machine, right

*Suggested maximum. Plow blade used will be determined by job requirements and soil conditions

43.5 in

45.5 in

1.11 m

1.16 m

Operation

Plow vibrator force @ 1800 rpm

Maximum material diameter

Pulled

Fed

General

Attachment weight, without plow blade

U.S.

35,215 lb

Metric

157 kN

3 in

2 in

U.S.

2600 lb

80 mm

50 mm

Metric

1180 kg

RT125Q Operator’s Manual

Declaration of Conformity Information

Declaration of Conformity Information

Specifications - 211

Countries in the European Union should have received a Declaration of Conformity (DOC) with this machine similar to the example below.

The Charles Machine Works, Inc.

PO Box 66

1959 West Fir Avenue

Perry, Oklahoma, USA 73077-0066

Phone: 580 572 3784

FAX: 580 572 3525

Declares that the product:

Model: Ditch Witch

®

XXXX

Type: (machine type)

Engine Power: xxx kW

Serial Number: CMWXXXXXXXXXXXXXX

Conforms to the requirements of:

2006/42/EC Machinery Directive

2004/108/EC Electromagnetic Compatibility Directive

2000/14/EC Noise Emission Directive

Measured sound power level (Annex V): xxx dBA

Guaranteed sound power level (Annex V): xxx dBA

The Technical Construction File is maintained at the manufacturer’s location.

The manufacturer’s European representative is:

Ditch Witch Barcelona

International Underground Systems, S.L.

C/EL PLA, 130 * Poligon Industrial El Pla

08980 Sant Feliu De Llobregat * Spain

Phone: +34 93 632 7344

FAX: +34 93 632 7343

Specifications - 212

RT125Q Operator’s Manual

Declaration of Conformity Information

RT125Q Operator’s Manual

Procedure

Support - 213

Support

Procedure

Notify your dealer immediately of any malfunction or failure of Ditch Witch

®

equipment.

Always give model, serial number, and approximate date of your equipment purchase. This information should be recorded and placed on file by the owner at the time of purchase.

Return damaged parts to dealer for inspection and warranty consideration if in warranty time frame.

Order genuine Ditch Witch replacement or repair parts from your authorized Ditch Witch dealer. Use of another manufacturer's parts may void warranty consideration.

Resources

Publications

Contact your Ditch Witch dealer for publications and videos covering safety, operation, service, and repair of your equipment.

Ditch Witch Training

For information about on-site, individualized training, contact your Ditch Witch dealer.

Warranty - 214

RT125Q Operator’s Manual

Warranty

Ditch Witch

®

Equipment and Replacement Parts

Limited Warranty Policy

Subject to the limitation and exclusions herein, free replacement parts will be provided at any authorized Ditch Witch dealership for any Ditch Witch equipment or parts manufactured by The Charles Machine Works, Inc. (CMW) that fail due to a defect in material or workmanship within one (1) year of first commercial use. Free labor will be provided at any authorized Ditch Witch dealership for installation of parts under this warranty during the first year following “initial commercial” use of the serial-numbered Ditch Witch equipment on which it is installed. The customer is responsible for transporting their equipment to an authorized Ditch Witch dealership for all warranty work.

Exclusions from Product Warranty

All incidental or consequential damages.

All defects, damages, or injuries caused by misuse, abuse, improper installation, alteration, neglect, or uses other than those for which products were intended.

All defects, damages, or injuries caused by improper training, operation, or servicing of products in a manner inconsistent with manufacturer’s recommendations.

All engines and engine accessories (these are covered by original manufacturer’s warranty).

Tires, belts, and other parts which may be subject to another manufacturer’s warranty (such warranty will be available to purchaser).

ALL IMPLIED WARRANTIES NOT EXPRESSLY STATED HEREIN, INCLUDING ANY WARRANTY OF FITNESS FOR A

PARTICULAR PURPOSE AND MERCHANTABILITY.

IF THE PRODUCTS ARE PURCHASED FOR COMMERCIAL PURPOSES, AS DEFINED BY THE UNIFORM COMMERCIAL

CODE, THEN THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE FACE HEREOF AND THERE ARE NO IMPLIED

WARRANTIES OF ANY KIND WHICH EXTEND TO A COMMERCIAL BUYER. ALL OTHER PROVISIONS OF THIS LIMITED

WARRANTY APPLY INCLUDING THE DUTIES IMPOSED.

Ditch Witch products have been tested to deliver acceptable performance in most conditions. This does not imply they will deliver acceptable performance in all conditions. Therefore, to assure suitability, products should be operated under anticipated working conditions prior to purchase.

Defects will be determined by an inspection within thirty (30) days of the date of failure of the product or part by CMW or its authorized dealer. CMW will provide the location of its inspection facilities or its nearest authorized dealer upon inquiry. CMW reserves the right to supply remanufactured replacements parts under this warranty as it deems appropriate.

Extended warranties are available upon request from your local Ditch Witch dealer or CMW.

Some states do not allow exclusion or limitation of incidental or consequential damages, so above limitation of exclusion may not apply. Further, some states do not allow exclusion of or limitation of how long an implied warranty lasts, so the above limitation may not apply. This limited warranty gives product owner specific legal rights and the product owner may also have other rights which vary from state to state.

For information regarding this limited warranty, contact CMW’s Product Support department, P.O. Box 66, Perry, OK 73077-0066, or contact your local dealer.

First version: 1/91; Latest version: 11/11

RT125Q Operator’s Manual

Service Performed

Service Record - 217

Service Record

Date Hours

Service Record - 218

Service Performed

RT125Q Operator’s Manual

Date Hours

RT125Q Operator’s Manual

Chapter Contents

Engine Diagnostic Codes

Appendix - 219

Appendix

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