Harbor Freight Tools Towable Ride_On Trencher Product manual

Owner’s Manual & Safety Instructions

Save This Manual

Keep this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number).

Keep this manual and the receipt in a safe and dry place for future reference.

WARNING!

IMPORTANT INFORMATION

The Hitch Coupler MUST be properly secured to the hitch ball of the towing vehicle. After assembly and attachment, pull up and down on the Hitch Coupler to make sure the hitch ball is fitting snugly in the

Hitch Coupler. There must be no play between the hitch ball and

Hitch Coupler. If there is play, tighten the Adjustment Nut until no play is present. If the Adjustment Nut is too tight, the Handle will not lock.

Carefully read and follow the complete instructions in this manual

BEFORE setup or use.

If the Coupler is not secured properly, the ball could come loose while the Trencher is in motion, possibly causing property damage, SERIOUS PERSONAL INJURY, or DEATH.

Using an engine indoors

CAN KILL YOU IN MINUTES.

Engine exhaust contains carbon monoxide.

This is a poison you cannot see or smell.

NEVER use inside a home or garage,

EVEN IF doors and windows are open.

Only use OUTSIDE and far away from windows, doors, and vents.

Visit our website at: http://www.harborfreight.com

Email our technical support at: [email protected]

REV 14j

When unpacking, make sure that the product is intact and undamaged. If any parts are missing or broken, please call 1-888-866-5797 as soon as possible.

Copyright © 2014 by Harbor Freight Tools ® . All rights reserved.

No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools.

Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual product may differ slightly from the product described herein.

Tools required for assembly and service may not be included.

Read this material before using this product.

Failure to do so can result in serious injury.

SAVE THIS MANUAL.

Table of Contents

Specifications ............................................. 2

Safety ......................................................... 3

Setup .......................................................... 6

Operation ................................................... 10

Maintenance .............................................. 17

Troubleshooting ......................................... 22

Warranties ................................................. 24

Parts Lists and Diagrams .......................... 26

Specifications

Displacement

Engine Type

Engine Family

Cooling System

Fuel

Type

Capacity

Engine Oil

Type SAE

Capacity

Run Time @ 50% Load with full tank

Sound Level

Bore x Stroke

Compression Ratio

Rotation viewed from PTO

(power takeoff - the output shaft)

301cc

Horizontal Single Cylinder

4-stroke, OHV, 9HP, Recoil Start

ECRPS.3012GA

Forced air cooled

87+ octane unleaded gasoline

1.72 Gallon

10W-30 above 32° F

5W-30 at 32° F or below

1 Quart

3 hours

106 dB

80 mm x 60 mm

8.2:1

Counterclockwise

Shaft

Spark Plug

Valve Clearance

Speed

Battery Required

Hydraulic Oil

Tire Inflation

Digging Depth

Maximum Digging Reach

Spool Valve

Pump

Shaft

Keyway

1″ x 3.48″

1/4″ (6.3 mm)

End Tapped 7/16 - 20

Type F6TC (Torch)

Gap

Intake

0.7 - 0.8 mm

0.15 ± 0.02 mm

Exhaust

Idle

Maximum

0.20 ± 0.02 mm

1,740± 50 RPM

3,600 RPM

12V 18Ah

3.5 Gallons

65 PSI

5-1/2 and 7 Feet Deep

8 Feet

Rated 10.6 GPM

Rated 2.7 GPM

Boom Travel

Bucket Load Capacity

Hitch Ball size

60° Left/Right

1.24 Cubic Feet

1-7/8" Diameter

The emissions control system for this Engine is warranted for standards set by the

U.S. Environmental Protection Agency and by the California Air Resources Board (also known as CARB).

For warranty information, refer to the last pages of this manual.

Page 2 For technical questions, please call 1-888-866-5797.

Item 62365

WARNING SYMBOLS AND DEFINITIONS

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

Addresses practices not related to personal injury.

Symbol Definitions

Symbol Property or Statement

RPM

Revolutions Per Minute

HP

Horsepower

WARNING marking concerning

Risk of Eye Injury. Wear ANSI-approved safety goggles with side shields.

Read the manual before set-up and/or use.


Risk of Hearing Loss.

Wear hearing protection.

Symbol Property or Statement


Risk of Respiratory Injury.

Operate engine OUTSIDE and far away from windows, doors, and vents.


Risk of Fire while handling fuel.

Do not smoke while handling fuel.


Risk of Fire.

Do not refuel while operating.

Keep flammable objects away from engine.

IMPORTANT SAFETY INSTRUCTIONS

WARNING! Read all instructions.

Failure to follow all instructions listed below may result in fire, serious injury and/or DEATH.

The warnings and precautions discussed in this manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.

SAVE THESE INSTRUCTIONS

Set up Precautions

1. Gasoline fuel and fumes are flammable, and potentially explosive. Use proper fuel storage and handling procedures. Do not store fuel or other flammable materials nearby.

2. Have multiple ABC class fire extinguishers nearby.

3. This equipment has a spark arresting muffler included. A spark arresting muffler is required by law in California, on some US Forest Service land, and possibly in other areas or situations.

4. Set up and use only on a flat, level, well-ventilated surface.

5. Wear ANSI-approved safety goggles, heavy-duty work gloves, and dust mask/respirator during set up.

6. Use only lubricants and fuel recommended in the Specifications chart of this manual.

Item 62365 For technical questions, please call 1-888-866-5797.

Page 3

Operating Precautions

1. CARBON MONOXIDE HAZARD

Using an engine indoors

CAN KILL YOU IN MINUTES.

Engine exhaust contains carbon monoxide. This is a poison you cannot see or smell.

NEVER use inside a home or garage,

EVEN IF doors and windows are open.

Only use OUTSIDE and far away from windows, doors, and vents.

2. Contact local utility companies before beginning any project. Buried utility lines may not be marked and, if struck, can cause

SERIOUS PERSONAL INJURY or DEATH.

3. Keep children away from the equipment, especially while it is operating.

4. Keep all spectators at least 20 feet from the equipment during operation.

5. Fire Hazard! Do not fill fuel tank while engine is running. Do not operate if gasoline has been spilled.

Clean spilled gasoline before starting engine.

Do not operate near pilot light or open flame.

6. Do not touch engine during use.

Let engine cool down after use.

7. Never store fuel or other flammable materials near the engine.

8. Industrial applications must follow

OSHA requirements.

9. Do not leave the equipment unattended when it is running. Turn off the equipment (and remove safety keys, if available) before leaving the work area.

10. The equipment can produce high noise levels.

Prolonged exposure to noise levels above 85 dBA is hazardous to hearing.

Wear ear protection when operating the equipment or when working nearby while it is operating.

11. Wear ANSI-approved safety goggles and hearing protection during use.

12. Do not operate in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Gasoline-powered engines may ignite the dust or fumes.

13. People with pacemakers should consult their physician(s) before use. Electromagnetic fields in close proximity to a heart pacemaker could cause pacemaker interference or pacemaker failure.

Caution is necessary when near the engine’s magneto or recoil starter.

14. Use only accessories that are recommended by Harbor Freight Tools for your model.

Accessories that may be suitable for one piece of equipment may become hazardous when used on another piece of equipment.

15. Stay alert, watch what you are doing and use common sense when operating this piece of equipment. Do not use while tired or under the influence of drugs, alcohol or medication.

16. Do not overreach. Keep proper footing and balance at all times. This enables better control of the equipment in unexpected situations.

17. Use this equipment with both hands only.

Using equipment with only one hand can easily result in loss of control.

18. Dress properly. Do not wear loose clothing or jewelry. Keep hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.

19. Parts, especially exhaust system components, get very hot during use. Stay clear of hot parts.

20. Do not cover the engine or equipment during operation.

21. Keep the equipment, engine, and surrounding area clean at all times.

22. Use the equipment, accessories, etc., in accordance with these instructions and in the manner intended for the particular type of equipment, taking into account the working conditions and the work to be performed.

Use of the equipment for operations different from those intended could result in a hazardous situation.

23. Do not operate the equipment with known leaks in the engine’s fuel system.

24. WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities, contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are:

• Lead from lead-based paints

• Crystalline silica from bricks and cement or other masonry products

• Arsenic and chromium from chemically treated lumber

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

(California Health & Safety Code § 25249.5, et seq.)


Item 62365

Operating Precautions (cont.)

25. WARNING: This product contains or, when used, produces a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. (California Health

& Safety Code § 25249.5, et seq.)

26. WARNING: This product contains di (2-ethylhexyl) phthalate (DEHP), a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. (California Health

& Safety Code § 25249.5, et seq.)

27. Never place your hands or body near a hydraulic fluid leak. High-pressure fluid can be forced under the skin resulting in serious injury.

28. When spills of fuel or oil occur, they must be cleaned up immediately. Dispose of fluids and cleaning materials as per any local, state, or federal codes and regulations. Store oil rags in a bottom-ventilated, covered, metal container.

29. Keep hands and feet away from moving parts.

Do not reach over or across equipment while operating.

30. Before use, check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the equipment’s operation.

If damaged, have the equipment serviced

before using. Many accidents are caused by poorly maintained equipment.

31. Use the correct equipment for the application.

Do not modify the equipment and do not use the equipment for a purpose for which it is not intended.

Transport Precautions

1. Only use a suitable means of transport and lifting devices with sufficient weight bearing capacity when transporting the equipment.

2. Properly secure the equipment to transport vehicle to prevent it from rolling, slipping, and tilting.

Service Precautions

1. Before service, maintenance, or cleaning: a. Turn the engine switch to its “OFF” position.

b. Allow the engine to completely cool.

c. Then, remove the spark plug wire from the spark plug.

2. Keep all safety guards in place and in proper working order. Safety guards include muffler, air cleaner, mechanical guards, and heat shields, among other guards.

3. Do not alter or adjust any part of the equipment or its engine that is sealed by the manufacturer or distributor. Only a qualified service technician may adjust parts that may increase or decrease governed engine speed.

4. Wear ANSI-approved safety goggles, heavy-duty work gloves, and dust mask/respirator during service.

5. Do not allow the hydraulic hose to come in contact with any hot part of the unit. The hose might be damaged, possibly causing it to burst or leak under high pressure.

6. Maintain labels and nameplates on the equipment.

These carry important information.

If unreadable or missing, contact

Harbor Freight Tools for a replacement.

Item 62365

3. Always make sure the hitch coupler is securely fixed to the vehicle before moving it. If the Coupler is not se cured properly, the link could come loose while the trailer is in motion, possibly causing property damage, SERIOUS PERSONAL INJURY, or DEATH.

4. Do not exceed 30 MPH when towing the Trencher.

5. Do not tow the Trencher on roads or highways. This product is not D.O.T. compliant, and is not road legal.

7. Have the equipment serviced by a qualified repair person using only identical replacement parts.

This will ensure that the safety of the equipment is maintained. Do not attempt any service or maintenance procedures not explained in this manual or any procedures that you are uncertain about your ability to perform safely or correctly.

8. Store equipment out of the reach of children.

9. Follow scheduled engine and equipment maintenance.

Refueling:

1. Do not smoke, or allow sparks, flames, or other sources of ignition around the equipment, especially when refuelling.

2. Do not refill the fuel tank while the engine is running or hot.

3. Refuel in a well-ventilated area only.

4. Wipe up any spilled fuel and allow excess to evaporate before starting engine.

To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

SAVE THESE INSTRUCTIONS.

For technical questions, please call 1-888-866-5797.

Page 5

Set Up

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

RISK OF ACCIDENTAL STARTING RESULTING IN SERIOUS PERSONAL INJURY.

Turn the Power Switch of the equipment to its “OFF” position, wait for the engine to cool, and unplug the spark plug wire(s) before assembling or making any adjustments to the equipment.

The emission control system for this product’s Engine is warranted for standards set by the U.S. Environmental Protection Agency and by the California Air Resources Board (also known as CARB). For warranty information, refer to the last pages of this manual.

At high altitudes, the engine’s carburetor, governor (if so equipped), and any other parts that control the fuel-air ratio will need to be adjusted by a qualified mechanic to allow efficient high-altitude use and to prevent damage to the engine and any other devices used with this product.

Assembly

1. This equipment has a spark arresting muffler.

A spark arresting muffler is required by law in

California, on some US Forest Service land, and possibly in other areas or situations.

2. Due to the size of the Trencher and its components, assistance may be required during the entire assembly process.

3. Use jacks (not included) to evenly raise the Frame Assembly (90) & support with jack stands (not included).

4. Mount both Axles (50) near the boom end of the Frame and secure with Lock Pins (82).

5. Place a Tire (52) over the four studs on each

Hub. Secure the Tires to the Hubs, using four Lug Nuts (53) per Tire. The Lug Nuts must be snug. Inflate the Tires to 65 PSI.

6. Slightly raise the jacks, remove the jack stands, then lower the jacks. Block the Tires and tighten the Lug Nuts to at least 90 Ft-Lbs.

7. Attach Seat (73) to the Seat Bottom

Plate (10) and secure both Seat and Plate to the post on top of Hydraulic Oil Tank.

8. Attach the Control Support (3) to the Frame

Assembly (90) using four Hex Bolts (81).

NOTE: The Hydraulics of this unit are tested before shipment. There may be hydraulic fluid present in components. Assemble the unit in an area that will not be damaged by leaking hydraulic fluid. It is recommended that you wrap rags securely over the Hydraulic Connectors on all the Cylinders during assembly. Wear splashresistant ANSI approved safety goggles and other protective gear to prevent injury from leaking fluid.

9. Attach the Main Boom (36) to the Boom Pivot

(38) using the Pin (42) through the bottom hole and Clevis Pin No. 1 (29) through the upper hole.

Secure both pins with Hair Pin Clip (31); Pin (42) requires one Cotter pin on each end. See Figure A.

Boom

Pivot (38)

Clevis Pin

No. 1 (29)

Main

Boom

(36)

Pin

(42)

Figure A

10. Mount the Boom Extension (34) to the

Main Boom (36) using the Pin (42), left, and Clevis Pin No. 1 (29), top. Secure both pins with Hair Pin Clip (31).

11. Attach the Hitch Coupler (58) to the Frame

Assembly (90) under the Engine (74) using

Hex Bolts (75) and Hex HD. Bolt (72).

12. Connect, tighten, and check all hydraulic hose fittings to the proper connections, as shown in the Hose Connection Diagram. Hoses and fittings are numbered. Tighten all fittings.

13. Open the Hydraulic Fluid Fill Plug (11). Top off the Hydraulic Fluid Reservoir with high quality hydraulic fluid. Check that the fluid level is between the lines on the attached Dipstick.

Close the Hydraulic Fluid Fill Plug securely.


Item 62365

Attaching the Leg Assembly

1. To use the Trencher, the Leg Assemblies must be installed next to the Boom (36), and the

Wheels and Axles (50) moved to the rear.

2. Move the Trencher to the work area (See

Starting the Engine on page 10).

3. Start the engine and use the Boom Controls to curl the Bucket toward the Boom without touching the ground. Moving the Bucket As sembly (32) down to the ground will raise the Frame Assembly (90).

Lift the Tires just off the ground and stop.

4. Ensure the controls will not be touched or bumped, and that the Trencher will remain motionless. Never place any part of your body under the Trencher.

Purging the Cylinder

1. Remove all Safety Locking Pins (15), disengage the Safety Latch (41) and loosen Hydraulic Tank Fill Plug (11).

2. Press forward on the Boom Swing Lever

(located on Control Panel (9) until the Boom stops moving, then pull back on it until it moves in the other direction. Center the Boom.

3. Press forward on the Main Boom Lever until the Main Boom is fully raised. Then, press Forward on the Boom Extension

Lever until the Boom is fully extended.

5. With the Tires (52) off the ground, remove the

Wheel and Axle (50) to the operator’s left and replace with the left side Extension Leg (19) and

Leg Assembly (24). Direct the Extension Leg so it turns toward the Bucket end of the Trencher.

Secure with Lock Pin No. 2 (82). Repeat procedure for the right side. Raise Bucket As sembly again to lower onto Leg Assembly, and turn Engine off.

6. Using a jack and jack stands (not included), raise up the engine end of the Trencher and disconnect from the Towing Hitch. Slide the Wheels and

Axles (50) into the engine end of the Frame (90).

Secure each Axle with Lock Pin No. 2 (82).

4. Press forward on the Bucket Lever until the Bucket is fully extended. Pull back on the Lever to retract it fully.

5. Pull back on the Boom Extension Lever until the Boom is pulled back all the way.

Pull back on the Main Boom Lever until the Main Boom is lowered completely.

6. Adjust the Boom back to its rest position and replace all locking devices.

7. Shut off the Engine, check the Hydraulic

Fluid level and refill as necessary.

Note: The Fill Plug is vented. When tightening the

Fill Plug, tighten it securely then back it off slightly.


Page 7

Components and Controls

Clevis Pin No. 1 (29)

Pin

(42)

Hydraulic Fluid

Fill Plug (11)

Seat (73)

Engine (74)

Control

Panel (9)

Boom Extension (34)

Mount Hitch

Coupler (58)

Here

Frame Assy. (90)

Hydraulic

Fluid

Reservoir

Figure B: Tow Configuration

Hydraulic Fluid

Reservoir part of Frame (90)

Hydraulic

Pump (65)

Control Panel / Spool Valve (9)

Bucket

Control

Cylinder

2

7

Boom

Extension

Cylinder

3

8

Main Boom

Cylinder

9

4

Page 8

5

10

Boom Swing

Cylinder

Figure C: Hose Connection


Item 62365

Components and Controls (cont’d)

Bucket Assembly Main Boom

Frame Assembly/

Engine/Pump

Tires

Bucket Seat

Axle & Hub

Control Panel

Item 62365

Leg Extension Leg Assembly

Figure D


Page 9

Operation

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

Pre-Start Checks

Inspect engine and equipment looking for damaged, loose, and missing parts before set up and starting.

If any problems are found, do not use equipment until fixed properly.

Checking and Filling Engine Oil

NOTICE: Your Warranty is VOID if the engine’s crankcase is not properly filled with oil before each use. Before each use, check the oil level.

Do not run the engine with low or no engine oil.

Running the engine with no or low engine oil

WILL permanently damage the engine.

1. Clean the Oil Filler Cap and the area around it.

2. Remove the Oil Filler Cap/Dipstick.

Read the engine service manual for the proper way to check the oil level.

3. If the oil level is low, add the proper type and weight.

See information below.

Oil type:

32° F or above = SAE 10W-30

Below 32° F = SAE 5W-30.

4. Replace the Oil Filler Cap.

NOTICE: Do not run the engine with too little oil.

The engine will be permanently damaged.

Checking and Filling Fuel

WARNING! TO PREVENT SERIOUS

INJURY FROM FIRE:

Fill the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding fuel. Do not smoke.

1. Clean the Fuel Cap and the area around it.

2. Unscrew and remove the Fuel Cap.

3. Remove the Strainer and remove any dirt and debris. Then replace the Strainer.

Note: Do not use gasoline containing more than

10% ethanol (E10). Do not use E85 ethanol. Add fuel stabilizer to the gasoline or the Warranty is VOID.

Note: Do not use gasoline that has been stored in a metal fuel container or a dirty fuel container. It can cause particles to enter the carburetor, affecting engine performance and/or causing damage.

4. If needed, fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with 90 octane or higher unleaded gasoline that has been treated with a fuel stabilizer additive. Follow fuel stabilizer manufacturer’s recommendations for use.

5. Then replace the Fuel Cap.

6. Wipe up any spilled fuel and allow excess to evaporate before starting engine.

To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

Starting the Engine

Before Starting the Engine

Before starting the engine: a. Follow the Set Up Instructions to prepare the equipment.

b. Inspect the equipment and engine.

c. Fill the engine with the proper amount and type of both unleaded gasoline and oil.

d. Read the Equipment Operation section that follows.


Item 62365

Engine Diagrams

Throttle Lever

Muffler Ignition Switch

Starter Grip

Spark Plug

Air Cleaner

Fuel Tank

Fuel Filler Cap

Recoil Starter

Fuel Valve Lever

Choke Lever

Item 62365

Oil Drain Plug

Oil Filler Cap


Page 11

Manual Start

1. Turn the Fuel Valve Lever to its “OPEN” position.

1

2. Turn the Ignition Switch to its ON or RUN position.

OFF ON

2

3. Then, turn the engine Choke Lever to its “START” position. Set the Choke Lever in the “RUN” position when starting a warm engine.

3

4. Grip the Starter Handle of the Engine loosely and pull it slowly several times to allow the gasoline to flow into the Engine’s carburetor. Then pull the Starter Handle gently until resistance is felt. Allow Cable to retract fully and then pull it quickly. Repeat until the engine starts.

Note: Do not let the Starter Handle snap back against the engine. Hold it as it recoils so it doesn’t hit the engine.

5. Allow the Engine to run for several seconds.

Then, if the Choke Lever is in the CHOKE position, move the Choke Lever very slowly to its RUN position.

Note: Moving the Choke Lever too fast could stall the engine.

4

5

O

I

ON


Item 62365

6. Slide the Throttle or Speed Control Lever to 1/3 away from the SLOW position (the “turtle”). Adjust as needed.

Note: Some tools have a Speed Control Lever located elsewhere on the tool which functions the same as the Throttle. Use the Speed Control Lever in place of the Throttle when the tool is so equipped.

6

IMPORTANT: Allow the engine to run at no load for five minutes after each start-up so that the engine can stabilize.

Break-in Period:

a. Breaking-in the engine will help to ensure proper equipment and engine operation.

b. The operational break-in period will last about 3 hours of use. During this period:

• Do not apply a heavy load to the equipment.

• Do not operate the engine at its maximum speed.

c. The maintenance break-in period will last about 20 hours of use.

• Change the engine oil after this period.

Under normal operating conditions subsequent maintenance follows the schedule explained in the MAINTENANCE section.

Stopping the Engine

1. To stop the engine in an emergency, turn the Engine Switch off.

OFF

O

I

2. Under normal conditions, use the following procedure: a. Turn the Engine Switch off.

b. Close the Fuel Valve.

Item 62365

NOTICE

See “Long-Term Storage” on page 15 for complete storage instructions.


Page 13

Changing Trencher Arm Positions

This Trencher can be used with two arm positions. See Figure E and Figure F.

Cylinder (26)

Pin

(29)

Cylinder (26)

Main

Boom

(36) upper hole

Main

Boom

(36) lower hole

Pin

(29)

Boom

Pivot

(38)

Boom

Pivot

(38)

Figure E: Shallow Position (5 1/2’ downward reach)

1. To use the Shallow Position, with a 5 1/2’ downward reach, do as follows:

Figure F: Deep Position (7’ downward reach)

2. To use the Deep Position, with a 7’ downward reach, do as follows: a. While the end of the Boom is supported, remove the Pin (29).

a. While the end of the Boom is supported, remove the Pin (29). b. Align the Cylinder with the upper hole.

c. Insert the Pin (29), and secure it with the Hair Pin Clip (31).

b. Align the Cylinder with the lower hole. c. Insert the Pin (29), and secure it with the Hair Pin Clip (31).


Item 62365

General Operating Instructions

1. With the Engine running, sit in the Operator

Seat (73) and pull the Boom Lever control backward to raise the Main Boom (36). See Figure G.

Bucket:

IN - OUT

Boom

Extension:

IN - OUT

Boom:

IN - OUT

Boom Swing:

LEFT - RIGHT

Figure G: Operate controls by pushing in or pulling out.

Moving the Trencher

1. One method for moving the Trencher around the work area is by using the Boom to push the Trencher across the ground.

WARNING! This technique can be difficult to control and should only be attempted by an experienced operator. The stability of the Trencher is dependent on the stability of the ground; if you choose to move the Trencher in this way, do so at your own risk. Do not use the Trencher near ditches or drop-offs.

2. Pull back on the Boom Extension Handle

Control to raise the Boom Extension (34).

3. Push forward on the Bucket Handle Control to open the Bucket Assembly (32).

4. Push forward on the Boom Handle to lower the

Boom until the Bucket reaches the ground.

5. Pull back on the Bucket Lever control until the Bucket scoops up the dirt.

6. Pull back on both the Boom and Boom

Extension Control Levers to raise the load.

7. Press in, or push out, the Boom Swing Control

Levers to move the Bucket left or right.

Note: The Boom’s travel is 60 degrees left and 60 degrees right.

8. Press in on the Bucket control handle to dump the load.

2. Swing the Bucket inward so that the front of the Bucket, not the scoop, is facing downward.

Press the Bucket down onto a solid piece of ground and press down hard enough to raise the front legs off the ground.

3. Carefully operate the controls to move the Boom and slowly roll yourself in the desired direction. Be certain that the Tires and the new resting places for the Legs all remain on solid, stable ground.

4. After you have repositioned the Trencher, raise the

Boom to lower the Outriggers back onto the ground.

The procedure can be repeated to move farther.


Page 15

Transporting the Trencher

1. Lock the Boom in Place. Use the Bucket Lever to line the hole on the Bucket (32) up with the hole on the Boom Extension (34). Insert a Safety

Locking Pin (15) and secure with a Ball Pin.

2. Use the Boom Swing Lever to line up the hole in the Boom Pivot (38) with the Hole in the

Frame (90). Insert a Safety Locking Pin (15) and secure with a Ball Pin. See Figure H.

Safety Locking

Pin (15)

7. Place the Hitch Coupler (58) over the vehicle’s hitch ball, pull the trigger, push down on the

Handle, and release the Trigger, making sure it locks in the slot. See Figure J.

Trigger

Handle

Adjustment

Nut

Safety Latch (41)

Figure H

3. Put the Boom into the Shallow Position and raise it until the Pin on the side of the Main Boom (36) is close enough for the Safety Latch (41) to swing over it. To use the Safety Latch, pull out on the handle, swing it over the Pin, and lower it over the Pin, locking it in place.

4. When transporting the Trencher, make sure your hitch (not included) is compatible with the Hitch

Coupler (92). Follow all of the safety warnings for towing in your vehicle’s manual. The Hitch

Coupler will only accept a 2 inch hitch ball.

5. To reduce friction between the hitch ball and Hitch Coupler (58), apply a layer of heavy-weight grease over the hitch ball.

6. Temporarily remove the “R” Pin and Safety

Pin. Then, pull up on the Trigger and lift up on the Handle. See Figure I.

R-Pin

Safety

Chain

(56)

Hitch Ball

(Not Included)

Figure J

8. Pull up and down on the Coupler to make sure the hitch ball is fitting snugly in the Coupler. There should be no play between the hitch ball and

Coupler. If there is play, tighten the Adjustment

Nut until no play is present. If the Adjustment

Nut is too tight, the Handle will not lock.

WARNING! If the Hitch Coupler is not secured properly, the ball could come loose while the

Trencher is in motion, possibly causing property damage or SERIOUS PERSONAL INJURY.

9. Make sure to attach each side of the

Safety Chain (56) equally to the towing vehicle’s rear bumper or frame.

CAUTION! Care must be taken when backing up the Trencher. Only back up the Trencher on a straight path. If the Trencher is allowed to turn off the straight path while backing up, the

Trencher could jackknife, causing severe damage to the Trencher and to the towing vehicle.

10. To prevent accidents, turn off the engine, wait for it to cool, and disconnect its spark plug wire after use. Clean external parts with clean cloth, then store the equipment out of children’s reach.

Safety Pin

Hitch

Coupler (58)

Page 16

Figure I


Item 62365

Maintenance

WARNING

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:

Turn the Power Switch of the equipment to its “OFF” position, wait for the engine to cool, and disconnect the spark plug cap before performing any inspection, maintenance, or cleaning procedures.

TO PREVENT SERIOUS INJURY FROM EQUIPMENT FAILURE:

Do not use damaged equipment. If abnormal noise, vibration, or excess smoking occurs, have the problem corrected before further use.

Follow all service instructions in this manual. The engine may fail critically if not serviced properly.

Many maintenance procedures, including any not detailed in this manual, will need to be performed by a qualified technician for safety. If you have any doubts about your ability to safely service the equipment or engine, have a qualified technician service the equipment instead.

Cleaning, Maintenance, and Lubrication Schedule

Note: This maintenance schedule is intended solely as a general guide. If performance decreases or if equipment operates unusually, check systems immediately. The maintenance needs of each piece of equipment will differ depending on factors such as duty cycle, temperature, air quality, fuel quality, and other factors.

Note: The following procedures are in addition to the regular checks and maintenance explained as part of the regular operation of the engine and equipment.

Procedure

Before

Each Use

After 20

Operation

Hour

Break-in

Period

Monthly or every 25 hr. of use

Every 3 mo. or 50 hr. of use

Every 6 mo. or

100 hr. of use

Yearly or every 300 hr. of use

Periodically

Brush off outside of engine

Check engine oil level

Check air cleaner

Check deposit cup

Change engine oil

Clean/replace air filter

Check and clean spark plug

Blow out water filters

Replace fuel Filter

Replace spark plug

1. Clean fuel tank, strainer and carburetor

2. Clean carbon build-up from combustion chamber

Apply grease to boom axis-movement points

(see Figure K: Lubrication

Points on page 18)

Replace fuel line if necessary

* * * *

**

*

**

**

*

Service more frequently when used in dusty areas.

**

These items should be serviced by a qualified technician.


Page 17


Item 62365

Fuel Filter Replacement (if equipped)


INJURY FROM FIRE OR EXPLOSION:

Fill the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool. Do not smoke.

1. Wear protective gear including, ANSIapproved safety goggles, NIOSH-approved dust mask/respirator, and nitrile gloves.

2. Clean the Fuel Cap and the area around it.

3. Remove Fuel Filter (6R). Reattach Fuel Cap to prevent debris from entering into Gas Tank.

4. Remove Fuel Strainer. Wash with warm water and light detergent. Flush and let dry.

5. Reinstall in the Gas Tank.

Engine Oil Change

CAUTION! Oil is very hot during operation and can cause burns. Wait for engine to cool before changing oil.

1. Make sure the engine is stopped and is level.

2. Close the Fuel Valve.

3. Place a drain pan (not included) underneath the Crankcase’s drain plug.

4. Remove the Drain Plug and, if possible, tilt the Crankcase slightly to help drain the oil out. Recycle used oil.

5. Replace the drain plug and tighten it.

6. Clean the top of the Dipstick and the area around it.

Remove the Dipstick by turning it counterclockwise, and wipe it off with a clean, lint free rag.

Full level

Full level

7. Add the appropriate type of oil until the oil level is at the full level. SAE 10W-30 oil is recommended for general use.

The SAE Viscosity Grade chart shows other viscosities to use in different average temperatures.

SAE Viscosity Grades

30

10W-30

5W-30

-20 0 20 40 60 80 100°F

Average outdoor temperature

8. Thread the Dipstick back in clockwise.

NOTICE: Do not run the engine with too little oil.

The engine will be permanently damaged.


Page 19

Air Filter Element Maintenance

1. Remove the air filter cover and the air filter elements and check for dirt. Clean as described below.

2. Cleaning:

• For “paper” filter elements:

To prevent injury from dust and debris, wear ANSI-approved safety goggles,

NIOSH-approved dust mask/respirator, and heavy-duty work gloves. In a well-ventilated area away from bystanders, use pressurized air to blow dust out of the air filter.

If this does not get the filter clean, replace it.

• For foam filter elements:

Wash the element in warm water and mild detergent several times. Rinse.

Squeeze out excess water and allow it to dry completely. Soak the filter in lightweight oil briefly, then squeeze out the excess oil.

3. Install the cleaned filter. Secure the

Air Cleaner Cover before use.

Spark Plug Maintenance

1.

Spark

Plug

Cap

Disconnect Spark Plug Cap from end of Plug.

Clean out debris from around Spark Plug.

2. Using a spark plug wrench, remove the Spark Plug.

3. Inspect the Spark Plug:

If the electrode is oily, clean it using a clean, dry rag.

If the electrode has deposits on it, polish it using emery paper. If the white insulator is cracked or chipped, the Spark Plug needs to be replaced.

Recommended Spark Plugs

F7TC (Torch)

NOTICE: Using an incorrect spark plug may damage the engine.

4. When installing a new spark plug, adjust the plug’s gap to the specification on the

Specifications chart. Do not pry against the electrode; the spark plug can be damaged.

5. Install the new spark plug or the cleaned spark plug into the engine.

• Gasket-style:

Finger-tighten until the Gasket contacts the Cylinder Head, then tighten about 1/2-2/3 turn more.

• Non-gasket-style:

Finger-tighten until the plug contacts the Cylinder Head, then tighten about 1/16 turn more.

NOTICE: Tighten the Spark Plug properly.

If loose, the Spark Plug will cause the engine to overheat.

If overtightened, the threads in the engine block will be damaged.

6. Apply dielectric spark plug boot protector

(not included) to the end of the Spark Plug and reattach the wire securely.


Item 62365

Long-Term Storage

When the equipment is to remain idle for longer than

20 days, prepare the engine for storage as follows:

1. CLEANING:

Wait for engine to cool, then clean engine with dry cloth. NOTICE: Do not clean using water.

The water will gradually enter the engine and cause rust damage. Apply a thin coat of rust preventive oil to all metal parts.

2. FUEL:


INJURY FROM FIRE:

To protect the fuel tank during storage, fill the tank with gasoline treated with fuel stabilizer in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding fuel. Do not smoke. Refer to

Checking and Filling Fuel on page 10.

3. LUBRICATION: a. Change engine oil.

b. Clean out area around spark plug.

Remove spark plug and pour one tablespoon of engine oil into cylinder through spark plug hole.

c. Replace spark plug, but leave spark plug cap disconnected.

d. Pull Starter Handle to distribute oil in cylinder.

Stop after one or two revolutions when you feel the piston start the compression stroke

(when you start to feel resistance).

4. BATTERY:

Disconnect battery cables (if equipped).

Recharge batteries monthly while in storage.

5. STORAGE AREA:

Cover and store in a dry, level, well-ventilated area out of reach of children. Storage area should also be away from ignition sources, such as water heaters, clothes dryers, and furnaces.

NOTICE: During extended storage periods the

Engine must be started every 3 months and allowed to run for 15 – 20 minutes or the Warranty is VOID.

6. STARTING ENGINE DURING/AFTER STORAGE:

Before starting the Engine during or after storage, keep in mind that untreated gasoline will deteriorate quickly. Drain the fuel tank and change to fresh fuel if untreated gasoline has been sitting for a month, if treated gasoline has been sitting beyond the fuel stabilizer’s recommended time period, or if the Engine does not start. For Engine starting instructions refer to Starting the Engine on page 10.


Page 21

Troubleshooting

Problem

Trencher loses performance

Possible Causes

Engine will not start FUEL RELATED:

1. No fuel in tank or fuel valve closed.

2. Choke not in start position, especially with cold engine.

3. Low quality or deteriorated old gasoline.

4. Carburetor not primed.

5. Dirty fuel passageways blocking fuel flow.

6. Carburetor needle stuck. Fuel can be smelled in the air.

7. Too much fuel in chamber. This can be caused by the carburetor needle sticking.

IGNITION (SPARK) RELATED:

1. Spark Plug Cap not connected securely.

2. Spark Plug electrode wet or dirty.

3. Incorrect Spark Plug Gap.

4. Spark Plug Cap broken.

5. Incorrect spark timing or faulty ignition system.

COMPRESSION RELATED:

1. Cylinder not lubricated.

Problem after long storage periods.

2. Loose or broken Spark Plug.

(Hissing noise will occur when trying to start.)

3. Loose Cylinder Head or damaged

Head Gasket. (Hissing noise will occur when trying to start.)

4. Engine valves or tappets mis-adjusted or stuck.

1. Mushy hydraulic operation.

2. Oil Leaks.

Probable Solutions

FUEL RELATED:

1. Fill fuel tank and open fuel valve.

2. Move choke to start position if engine is cold.

3. Use only fresh 87+ octane unleaded gasoline.

4. Prime Carburetor by pressing priming bulb (if equipped).

5. Clean out passageways using fuel additive. Heavy deposits may require further cleaning.

6. Gently tap side of Carburetor float chamber with screwdriver handle.

7. Turn Fuel Valve to its off position. Turn choke to run position. Remove spark plug and pull the start handle several times to air out the chamber. Reinstall spark plug and set choke to start position.

IGNITION (SPARK) RELATED:

1. Connect Spark Plug Cap properly.

2. Clean Spark Plug.

3. Correct Spark Plug Gap.

4. Replace Spark Plug Cap.

5. Have qualified technician diagnose/ repair ignition system.

COMPRESSION RELATED:

1. Pour tablespoon of oil into spark plug hole. Crank engine a few times and try to start again.

2. Tighten Spark Plug.

If that does not work, replace spark plug.

If problem persists, may have head gasket problem, see #3.

3. Tighten head.

If that does not remedy problem, replace head gasket.

4. Have qualified technician adjust/ repair valves and tappets.

1. Bleed hydraulic system. Replace hydraulic filter/clean strainer.

2. Tighten/replace hose.

Follow all safety precautions whenever diagnosing or servicing the equipment or engine.


Item 62365

Problem

Engine misfires

Engine stops suddenly

Possible Causes

1. Spark Plug Cap loose.

2. Incorrect Spark Plug Gap or damaged Spark Plug.

3. Defective Spark Plug Cap.

4. Old or low quality gasoline.

5. Incorrect compression.

1. Fuel Tank empty or full of impure or low quality gasoline.

2. Low oil shutdown.

2. Engine overloaded.

3. Incorrect spark timing, deposit buildup, worn engine, or other mechanical problems.

1. Impure or low quality gasoline.

2. Engine too cold.

Probable Solutions

1. Check wire connections.

2. Re-gap or replace Spark Plug.

3. Replace Spark Plug Cap.

4. Use only fresh 87+ octane unleaded gasoline.

Do not use gasoline with more than

10% ethanol (E15, E20, E85, etc.).

5. Diagnose and repair compression.

(Use Engine will not start:

COMPRESSION RELATED section.)

1. Fill Fuel Tank with fresh 87+ octane unleaded gasoline.


10% ethanol (E15, E20, E85, etc.).

2. Fill engine oil to proper level.

Check engine oil before EVERY use.

3. Test/replace fuel tank cap.

4. Have qualified technician service magneto.

5. Secure spark plug cap.

Engine stops when under heavy load

3. Defective fuel tank cap creating vacuum, preventing proper fuel flow.

4. Faulty magneto.

5. Disconnected or improperly connected spark plug cap.

1. Dirty Air Filter

2. Engine running cold.

Engine knocks

Engine backfires

1. Old or low quality gasoline.

3. Intake Valve stuck or overheated engine.

4. Incorrect timing.

1. Clean or replace element.

2. Allow engine to warm up prior to operating equipment.



10% ethanol (E15, E20, E85, etc.).

2. Do not exceed equipment’s load rating.

3. Have qualified technician diagnose and service engine.



10% ethanol (E15, E20, E85, etc.).

2. Use cold weather fuel and oil additives to prevent backfiring.

3. Have qualified technician diagnose and service engine.

4. Check engine timing.

Follow all safety precautions whenever diagnosing or servicing the equipment or engine.


Page 23

Warranties

Limited 90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER

WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid.

Proof of purchase date and an explanation of the complaint must accompany the merchandise.

If our inspection verifies the defect, we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement.

We will return repaired products at our expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning the product.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

Emissions Control System Warranty

California and United States Emissions

Control Defects Warranty Statement

The California Air Resources Board (herein CARB), the United States Environmental Protection Agency (herein EPA), and Harbor Freight Tools (herein HFT) are pleased to explain the emissions control system warranty on your 2014-2015

Small Off-Road Engine (herein engine). In California, the engine must be designed, built and equipped to meet the State’s stringent anti-smog standards. Elsewhere within the United States, new off-road, spark-ignition engines certified for model year 2014-2015, must meet similar standards set forth by the EPA. HFT must warrant the emissions control system on your engine for the periods of time described below, provided there has been no abuse, neglect or improper maintenance of your engine.

Your emissions control system may include parts such as the carburetor or fuel-injection system, and the ignition system.

Also included may be hoses, belts, connectors and other emissions-related assemblies.

Where a warrantable condition exists, HFT will repair your engine at no cost to you including diagnosis, parts and labor.

Manufacturer’s Warranty Coverage

The 2014-2015 engines are warranted for two (2) years.

If any emissions-related part on your engine is defective, the part will be repaired or replaced by HFT.

Harbor Freight Tools Emissions Control

Defects Warranty Coverage

Engines are warranted for a period of two (2) years relative to emissions control parts defects, subject to the provisions set forth below. If any emissions related part on your engine is defective, the part will be repaired or replaced by HFT.

Owner’s Warranty Responsibilities

• As the engine owner, you are responsible for the performance of the required maintenance listed in your Owner’s Manual.

HFT recommends that you retain all receipts covering maintenance on your engine, but HFT cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.

• As the engine owner, you should, however, be aware that HFT may deny you warranty coverage if your engine or a part has failed due to abuse, neglect, improper maintenance, or unapproved modifications.

• You are responsible for shipping your engine to a HFT warranty station as soon as a problem exists. Contact the

HFT Customer Service department at the number below to make shipping arrangements. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.

If you have any questions regarding your warranty rights and responsibilities, you should contact the Harbor Freight Tools

Customer Service Department at 1-888-866-5797.


Item 62365

Harbor Freight Tools Emissions Control

Defects Warranty Provisions

1. Length of Coverage

HFT warrants to a first retail purchaser and each subsequent purchaser that the engine is free from defects in materials and workmanship that cause the failure of warranted parts for a period of two (2) years after the date of delivery to the first retail purchaser.

2. No Charge Repair or Replacement

Repair or replacement of any warranted part will be performed at no charge to the owner if the work is performed through a warranty station authorized by HFT.

For emissions warranty service, contact the HFT

Customer Service Department at 1-888-866-5797.

3. Consequential Damages Coverage

Coverage under this warranty shall also extend to the failure of any engine components caused by the failure of any warranted part while it is still covered under this warranty.

4. Coverage Exclusions

Warranty claims shall be filed in accordance with the provisions of the HFT warranty policy explained in the box at the top of the previous page. HFT shall not be liable for any loss of use of the engine, for any alternative usage, for any damage to goods, loss of time, or inconvenience. Warranty coverage shall also be excluded for any part which fails, malfunctions, or is damaged due to failure to follow the maintenance and operating instructions set forth in the Owner’s Manual including, but not limited to: a) Use of parts which are not authorized by HFT b) Improper installation, adjustment or repair of the engine or of any warranted part unless performed by an authorized warranty center c) Failure to follow recommendations on fuel use contained in the Owner’s Manual d) Improper or inadequate maintenance of any warranted parts e) Repairs performed outside of the authorized warranty service dealers f) Alterations by changing, adding to or removing parts from the engine.

5. Service and Maintenance

Component parts which are not scheduled for replacement as required maintenance or are scheduled only for regular inspection to the effect of “repair or replace as necessary” are warranted for the warranty period. Any warranted part which is scheduled for replacement as required maintenance is warranted for the period of time up to the first scheduled replacement point for that part. Any replacement part, provided it is equivalent in durability and performance, may be used in performance of maintenance or repairs. The owner is responsible for commissioning a qualified technician/mechanic to perform all required maintenance, as outlined in the

Inspection, Cleaning, and Maintenance section in this manual.

6. Warranted Parts

1) Fuel Metering System i) Carburetor and its internal parts.

ii) Fuel pump (if so equipped).

iii) Cold start enrichment system.

2) Air Induction System i) Intake pipe/manifold.

ii) Air cleaner.

3) Ignition System i) Spark plug.

ii) Magneto ignition system.

4) Catalyst System (if so equipped) i) Exhaust pipe stud.

ii) Muffler.

iii) Catalytic converter (if so equipped).

5) Miscellaneous Items Used in Above Systems i) Vacuum, temperature and time sensitive valves and switches.

ii) Hoses, belts, connectors, and assemblies.

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM

IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR

MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS

QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE

ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY

STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND

LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY

ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS

THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.


Page 25

Parts Lists and Diagrams

Main Parts List

Part Description

1 Nut 3/8"

2 Spring Washer 3/8"

3 Control Support

4 Washer 3/8"

5 Hex Hd. Bolt 3/8"*1-1/8"

6 Scutcheon

7 Hose Assembly No.6

8 Hex Connector

9 Control Valve

10 Seat Bottom

11 Fill Plug/Dipstick


13 Enter Hose Assembly No.1

14 Hex Bolt 3/8"*1"

15 Safety Locking Pin

16 Spring Hair Pin Clip



19 Extension Leg (Right)

20 Lock Pin No.1



23 Control Panel

24 Leg Assembly

25 90 Elbow Fitting No.1

26 Cylinder

27 Connecting Rod

28 Connecting Rod

29 Clevis Pin No.1

30 Bushing

31 Hair Pin Clip 3/16"*2-5/16"

32 Bucket Assembly

33 Lubrication Fitting

34 Boom Extension

35 Clevis Pin No.2

36 Main Boom

37 Lubrication Fitting

38 Boom Pivot



41 Safety Latch

42 Pin

43 Spring

44 Washer 15/16"

45 Extension Leg (Left)

46A Hose Assembly No.2

47 Hex Nut 5/16"

48 Hex Hd. Bolt 5/16"*3/4”

49 Cover

50 Axle & Hub Assembly

Qty.

8

1

15

1

2

2

8

4

1

2

1

1

1

4

1

1

2

8

1

2

1

1

1

17

8

1

1

10

4

10

1

9

5

3

1

2

1

2

1

1

1

2

1

1

6

1

11

1

2

1


51 Hair Pin Clip 1/8"*1-3/4"

52 Tire

53 Lug Nut

54 Outlet Hose

55 Hose Clamp

56 Safety Chain

57 Hexnut 3/8"

58 Hitch Coupler

59 Nut ½

60 Hex Hd. Bolt 3/8"*2-3/4"

61 Hex Hd. Bolt 3/8"*3-1/2"

62 Hex Hd. Bolt 5/16"*1"

63 Washer


65 Hydraulic Pump

66 90 Deg. Elbow Fitting No.3

67 Pump Key

68 Couping-Pump Side

69 Hex Screw

70 Mounting Bracket - Pump

71 Engine Key

72 Hex Hd. Bolt 5/16"*1-3/4"

73 Seat

74 Engine

75 Hex Hd. Bolt 5/16"

76 Couping-Engine Side

77 Hair Pin Clip

78 Wheel

79 Lock Pin

80 Weight Block

81 Hex Hd. Bolt 5/8"*4-3/4"

82 Lock Pin No.2

83 Washer 5/8

84 Nut 5/8"


86 Hex Hd.bolt 5/16"*1-1/8"

87 “O” Ring Seal

88 Oil Filter

89 Oil Plug R3/8"

90 Frame Assembly

91 Clevis Pin No.3

92 Washer

93 Pivot Pin

94 Bushing

95 Snap Spring


97 Hex Hd. Bolt 1/4"*1/2"

98 Spring Hair Pin Clip

99 Spider

Record Product’s Serial Number Here:

Note: If product has no serial number, record month and year of purchase instead.

Page 26

Note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.


Item 62365

Qty.

1

2

1

1

1

1

4

1

1

1

1

4

2

1

1

1

1

1

6

1

1

2

1

2

3

1

2

1

2

1

2

2

2

1

1

2

1

1

1

1

2

1

1

1

1

1

4

1

1

Main Assembly Diagram


Page 27

Parts List B - Cylinder Head


1B Cylinder Head Assembly

2B Intake Valve Guide

3B Exhaust Valve Guide

4B Valve Guide Clip

5B Cover

6B Packing

7B Breathing Tube

8B Spark Plug

9B Cylinder Gasket

Qty.

1

1

1

1

1

1

1

1

1

Diagram B - Cylinder Head


10B Muffler Gasket

11B Pin

12B Bolt 6x14

13B Bolt 8x55

14B Intake Bolt

15B Exhaust Bolt

16B Intake Valve Seat

17B Exhaust Valve Seat

18B Cylinder Head

Qty.

1

1

2

2

1

4

4

1

2

Note: When ordering replacement parts from this diagram, use the suffix “B”.


Item 62365

Parts List C - Crank Case


1C Crank Case Assembly

2C Oil Level Switch

3C Governor Gear Assembly

4C Weight

5C Governor Gear

6C Weight Pin

7C Slider

8C Shaft Arm

9C Drain Plug

10C Washer

11C Washer

12C Clip

Diagram C - Crank Case

Qty.

1

1

1

2

1

2

1

1

2

1

2

2


13C Ball Bearing

14C Oil Seal

15C O-Ring

16C Nut

17C Washer

18C R-Pin

19C Bolt 6x12

20C Shaft

21C Governor Assembly

22C Oil Alarm

23C Bolt

Qty.

3

1

1

1

1

1

1

1

1

1

1

Note: When ordering replacement parts from this diagram, use the suffix “C”.


Page 29

Parts List D - Crank Case Cover

Part

1D Bolt

2D Oil Stick

3D Gasket

4D Cover

5D Oil Seal

6D Bearing

Description Qty.

2

1

6

1

1

1

Diagram D - Crank Case Cover


7D Pin

8D Oil Filler Cap

9D Gasket Case Cover

10D Oil Fill Assembly

11D Cap Assembly

Qty.

1

1

2

1

1

Note: When ordering replacement parts from this diagram, use the suffix “D”.


Item 62365

Parts List E - Crankshaft/Piston

Part

5E

6E

7E

8E

9E

1E

2E

3E

4E

Description

Ring Set

Piston

Pin

Rod Assembly

Crankshaft Assembly

Bolt

Clip

Timing Gear

Gear

2

1

1

2

1

1

1

1

1

Qty.

Diagram E - Crankshaft/Piston


10E Crankshaft

11E First Ring

12E Second Ring

13E Oil Ring

14E Bushing Ring

15E Connecting Rod

16E Connecting Rod Bearing Cap

17E Key

1

1

1

1

1

2

1

1

Qty.

Note: When ordering replacement parts from this diagram, use the suffix “E”.


Page 31

Parts List F - Gas Distribution Adjustment System


5F

6F

7F

8F

1F

2F

3F

4F

Nut

Rocker Arm

Valve Rocker

Pivot Bolt

Plate Assembly

Block Guide

Push Rod Guide

Push Rod

9F Valve Lifter

10F Valve Cap

11F Valve Spring Retainer

12F Valve Spring

13F Guide Seal

1

2

1

2

2

2

2

2

2

2

2

2

1

Qty.


14F Camshaft Assembly

15F Reducer Pin

16F Reducer

17F Matching Block Pin

18F Matching Block

19F Flying Block Pin

20F Spring Pin

21F Flying Block Spring

22F Flying Block

23F Camshaft

24F Exhaust Valve

25F Intake Valve

Diagram F - Gas Distribution Adjustment System

1

1

1

1

1

2

1

1

1

1

1

1

Qty.

Note: When ordering replacement parts from this diagram, use the suffix “F”.


Item 62365

Parts List G - Starter Subassembly


1G Starter Assembly

2G Set Screw

3G Ratchet Guide

4G Friction Spring

5G Starter Ratchet

6G Return Spring

7G Recoil Starter Reel

8G Recoil Starter Spring

9G Recoil Starter Knob

Qty.

1

1

2

2

1

1

1

1

1


10G Fan Cover

11G Rope

12G Bolt 6x8

13G Bolt 6x10

14G Fan Cover

15G Switch Assembly

16G Recoil Starter

17G Fan Cover

18G Stop Switch Assembly

Diagram G - Starter Subassembly

Qty.

1

1

1

1

1

3

4

1

1

Note: When ordering replacement parts from this diagram, use the suffix “G”.


Page 33

Parts List H - Diversion Assembly

Part

1H Bolt 6x20

2H Side Plate

3H Bolt 6x8

Description Qty.

1

1

2

Part

4H Shroud

5H Side Plate

6H Grommet

Description

Diagram H - Diversion Assembly

Qty.

1

1

1

Note: When ordering replacement parts from this diagram, use the suffix “H”.


Item 62365

Parts List J - Carburetor


1J Carburetor Assembly

2J Carburetor

3J Main Nozzle

4J Main Jet

5J Float Valve

6J Valve Set Spring

7J Float

8J Float Pin

9J Oil Cup Gasket

10J Oil Cup

11J Gasket Bolt

12J Bolt

13J Drain Bolt

14J Drain Bolt Gasket

15J Fuel Strainer Cup

16J Fuel Strainer Cup Packing

17J Fuel Packing

18J Lever

Diagram J - Carburetor

Qty.

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1


19J Lever Spring

20J Setting Plate

21J Screw 3x8

22J Jet Set

23J Pilot Jet Set

24J Choke Lever Assembly

25J Choke Lever

26J Choke Lever Pin

27J Choke Set

28J Screw

29J Screw Spring

30J Throttle Stop Screw

31J Packing

32J Carburetor Packing

33J Carburetor Insulation

34J Packing

35J Throttle Valve

Qty.

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

Note: When ordering replacement parts from this diagram, use the suffix “J”.


Page 35

Parts List K - Flywheel/Coil Assembly


1K Ignition Assembly

2K Ignition Coil

3K Noise Suppression Cap Assembly

4K Stop Switch Cord

5K Bolt 6x30

6K Flywheel Cover

7K Charge Coil Assembly

8K Cooling Fan

Qty.

1

1

2

1

1

1

1

2


9K Starter Pulley

10K Nut

11K Flywheel

12K Charge Coil

13K Bolt 6x35

14K Cord Clamp

15K Bolt 6x8

Diagram K - Flywheel/Coil Assembly

Qty.

2

1

1

1

1

1

1

Note: When ordering replacement parts from this diagram, use the suffix “K”.


Item 62365

Parts List M - Control System


1M Bolt

2M Governor Spring

3M Bolt

4M Governor Arm

5M Nut

6M Throttle Return Spring

7M Linkage

8M Control Assembly

9M Nut

10M Fixing Plate

11M Washer

Qty.

1

1

1

1

1

1

2

1

1

1

1

Diagram M - Control System


12M Washer

13M Retainer Assembly

14M Spring

15M Screw 5x35

16M Cable Return Spring

17M Control Handle

18M Screw 5x25

19M Back Plate

20M Screw 4x6

21M Locking Ring

22M Clip

Qty.

1

1

1

1

1

1

1

1

1

1

Note: When ordering replacement parts from this diagram, use the suffix “M”.


Page 37

Parts List N - Air Cleaner


1N Air Cleaner Assembly

2N Elbow

3N Short Collar

4N Long Collar

5N Elbow Packing

6N Bolt 6x20

7N Nut 6mm

8N Nut

9N Air Cleaner Cover

Diagram N - Air Cleaner

Qty.

2

2

1

1

1

2

2

1

1


10N Air Cleaner Element Assembly

11N Grommet

12N Outer Filter

13N Element

14N Base

15N Air Cleaner Assembly

16N Cover

17N Screw

Qty.

1

2

1

1

1

1

1

1

Note: When ordering replacement parts from this diagram, use the suffix “N”.


Item 62365

Parts List P - Muffler


1P Muffler

2P Nut 8mm

3P Muffler Cover

Diagram P - Muffler

Qty.

1

1

1


4P Screw 5x8

5P Muffler Assembly

6P Muffler Case

Qty.

4

1

1

Note: When ordering replacement parts from this diagram, use the suffix “P”.

Parts List R - Fuel Tank


1R Clip Tube

2R Joint Assembly

3R Fuel Tank

4R Fuel Filler Assembly

5R Fuel Cap Gasket

6R Fuel Strainer

7R Bolt 6x25

Diagram R - Fuel Tank

Qty.

1

1

1

1

1

2

1


8R Joint Packing

9R Nut 6mm

10R Fuel Line

11R Fuel Cap

12R Fuel Tank Assembly

13R Adapter/Connector

Qty.

1

1

1

2

1

1

Note: When ordering replacement parts from this diagram, use the suffix “R”.


Page 39

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797

Harbor Freight Tools Towable Ride_On Trencher Product manual

Owner’s Manual & Safety Instructions

WARNING!

Table of Contents

Specifications

Symbol Definitions

RPM

HP

IMPORTANT SAFETY INSTRUCTIONS

Set up Precautions

Operating Precautions

Operating Precautions (cont.)

Transport Precautions

Service Precautions

SAVE THESE INSTRUCTIONS.

Set Up

Assembly

Attaching the Leg Assembly

Purging the Cylinder

Components and Controls

Components and Controls (cont’d)

Operation

Pre-Start Checks

Starting the Engine

Engine Diagrams

Manual Start

OFF ON

Break-in Period:

Stopping the Engine

NOTICE

Changing Trencher Arm Positions

General Operating Instructions

Moving the Trencher

Transporting the Trencher

Maintenance

WARNING

Cleaning, Maintenance, and Lubrication Schedule

SAE Viscosity Grades

Average outdoor temperature

Long-Term Storage

Troubleshooting

Warranties

Limited 90 Day Warranty

Emissions Control System Warranty

PLEASE READ THE FOLLOWING CAREFULLY

Parts Lists and Diagrams

Main Parts List

Main Assembly Diagram

Parts List B - Cylinder Head

Diagram B - Cylinder Head

Parts List C - Crank Case

Diagram C - Crank Case

Parts List D - Crank Case Cover

Diagram D - Crank Case Cover

Parts List E - Crankshaft/Piston

Diagram E - Crankshaft/Piston

Parts List F - Gas Distribution Adjustment System

Diagram F - Gas Distribution Adjustment System

Parts List G - Starter Subassembly

Diagram G - Starter Subassembly

Parts List H - Diversion Assembly

Diagram H - Diversion Assembly

Parts List J - Carburetor

Diagram J - Carburetor

Parts List K - Flywheel/Coil Assembly

Diagram K - Flywheel/Coil Assembly

Parts List M - Control System

Diagram M - Control System

Parts List N - Air Cleaner

Diagram N - Air Cleaner

Parts List P - Muffler

Diagram P - Muffler

Parts List R - Fuel Tank

Diagram R - Fuel Tank

Key Features

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