Clarke SCRUBTEC 743 L Operator's Manual

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Clarke SCRUBTEC 743 L Operator's Manual | Manualzz

Operator's

Manual

SCRUBTEC 743 S

SCRUBTEC 743 L

SCRUBTEC 751 S

SCRUBTEC 751 L

SCRUBTEC 743 S C

SCRUBTEC 743 L C

U.S. Patent No. 6,105,192; No. 6,557,207; No. 6,760,947

READ THIS BOOK

CAUTION: Read the Operator's Manual before using the appliance.

This book has important information for the use and safe operation of this machine. Failure to read this book prior to operating or attempting any service or maintenance procedure to your ALTO machine could result in injury to you or to other personnel; damage to the machine or to other property could occur as well. You must have training in the operation of this machine before using it. If operator(s) cannot read this manual, have it explained fully before attempting to operate this machine.

All directions given in this book are as seen from the operator’s position at the rear of the machine.

For new books write to: ALTO, 2100 Highway 265, Springdale, Arkansas 72764.

CLARKE TECHNOLOGY Printed in the U.S.A.

Form No. 70900A 9/05

Table of Contents

O perator Safety Instructions ............................................................................................................................ 3

Machine Introduction ........................................................................................................................................ 4

Machine Specifications .................................................................................................................................... 5

Procedures for Transporting Machine ............................................................................................................. 7

Symbols Used on Machine .............................................................................................................................. 9

Machine Control Panel ..................................................................................................................................... 11

Machine Controls and Features ...................................................................................................................... 13

How to Prepare the Machine for Operation ...................................................................................................... 14

How to Install the Batteries ................................................................................................................ 14

Battery Maintenance ........................................................................................................................... 16

How to Charge the Batteries ............................................................................................................. 17

How to Install a Rotary Brush or Pad Driver ...................................................................................... 18

How to Remove a Rotary Brush or Pad Driver .................................................................................. 19

How to Change or Rotate Cylindrical Brushes ................................................................................. 19

How to Operate the Machine ............................................................................................................................ 20

How to Operate the Squeegee .......................................................................................................... 20

Filling the Solution Tank .................................................................................................................... 20

Operating the Machine ....................................................................................................................... 20

How to Clean a Dirty Floor ................................................................................................................. 21

Maintenance ..................................................................................................................................................... 22

Procedures Before Work is Begun .................................................................................................... 22

Procedures to Perform at the End of Work ........................................................................................ 23

Procedures to Perform Every Week ................................................................................................... 25

Maintenance for the Squeegee .......................................................................................................... 26

How to Adjust the Squeegee ............................................................................................................. 26

Accessories ...................................................................................................................................................... 27

How to Correct Problems in the Machine ........................................................................................................ 28

SECTION II - Parts and Service Manual

Final Assembly ................................................................................................................................................. 30

Parts List ............................................................................................................................................ 31

Recovery Tank Assembly ................................................................................................................................. 32

Parts List ............................................................................................................................................ 33

Solution Tank Assembly .................................................................................................................................. 34

Parts List ............................................................................................................................................ 35

Electrical Assembly .......................................................................................................................................... 36

Parts List ............................................................................................................................................ 37

Control Housing Assembly .............................................................................................................................. 38

Parts List ............................................................................................................................................ 39

Squeegee Lift Assembly .................................................................................................................................. 40

Parts List ............................................................................................................................................ 41

Squeegee Assembly ........................................................................................................................................ 42

Parts List ............................................................................................................................................ 43

Frame Assembly .............................................................................................................................................. 44

Parts List ............................................................................................................................................ 45

Cylindrical Brush Head Assembly ................................................................................................................... 46

Parts List ............................................................................................................................................ 47

Rotary Disk Head Assembly ............................................................................................................................ 48

Parts List ............................................................................................................................................ 49

Gearbox Assembly and Parts List ................................................................................................................... 50

Brush Motor Assembly and Parts List ............................................................................................................. 51

Transaxle Repair Parts .................................................................................................................................... 52

SCRUBTEC 743 S, 751 S, 743 S C Connection Diagram .............................................................................. 53

SCRUBTEC 743 S, 751 S, 743 S C Electrical Schematic ............................................................................... 54

SCRUBTEC 743 L, 751 L, 751 L C Connection Diagram ............................................................................... 55

SCRUBTEC 743 L, 751 L, 751 L C Electrical Schematic ................................................................................ 56

Page -2-

English

Correct Disposal of This Product (Waste Electrical & Electronic Equipment)

(Applicable in the European Union and other European countries with separate collection systems)

This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes at the end of its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources.

Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take this item for environmentally safe recycling.

Business users should contact their supplier and check the terms and conditions of the purchase contract. This product should not be mixed with other commercial wastes for disposal.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

WARNING

OPERATOR SAFETY INSTRUCTIONS

AVERTISSEMENT ADVERTENCIA

DANGER: Failure to read and observe all DANGER statements could result in severe bodily injury or death. Read and observe all DANGER statements found in the Operator's Manual and on the machine.

WARNING: Failure to read and observe all WARNING statements could result in injury to you or to other personnel; property damage could occur as well. Read and observe all WARNING statements found in the Operator's Manual and on the machine.

CAUTION: Failure to read and observe all CAUTION statements could result in damage to the machine or to other property. Read and observe all

CAUTION statements found in the Operator's Manual and on the machine.

DANGER:

DANGER:

DANGER:

DANGER:

DANGER:

DANGER:

Failure to read the Operator's Manual prior to operating or attempting any service or maintenance procedure to your ALTO machine could result in injury to you or to other personnel; damage to the machine or to other property could occur as well.

You must have training in the operation of this machine before using it. If you or your operator(s) cannot read this manual, have it explained fully before attempting to operate this machine.

Operating a machine that is not completely or fully assembled could result in injury or property damage. Do not operate this machine unless it is completely assembled. Inspect the machine carefully before operation.

Machines can cause an explosion when operated near flammable materials and vapors. Do not use this machine with or near fuels, grain dust, solvents, thinners, or other flammable materials. This machine is not suitable for picking up hazardous dust. Use only commercially available floor cleaning chemicals intended for machine application.

Lead acid batteries generate gases which can cause an explosion. Keep sparks and flames away from batteries. Do not smoke around the machine. Charge the batteries only in an area with good ventilation. Make sure that the AC charger plug is unplugged from the wall receptacle and stowed before operating the machine.

Working with batteries can be dangerous! Always wear eye protection and protective clothing when working near batteries. Remove all jewelry. Do not put tools or other metal objects across the battery terminals, or on the tops of the batteries.

Using a charger with a damaged power cord could result in an electrocution. Do not use the charger if the power cord is damaged.

WARNING: Operating this machine from anywhere other than the back of the machine could result in injury or damage. Operate this machine only from the rear.

WARNING: This machine is heavy. Get assistance before attempting to transport or move it. Use two able persons to move the machine on a ramp or incline. Always move slowly. Do not turn the machine on a ramp. Do not use on surfaces having a gradient exceeding that marked on the appliance. Read the "Procedures For Transporting" in this manual before transporting as machine might topple over if not secured.

WARNING: Machines can topple over and cause injury or damage if guided over the edges of stairs or loading docks. Stop and leave this machine only on a level surface. When you stop the machine, put all switches into their "OFF" position. On L models turn the key switch

"OFF" and remove the key.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -3-

WARNING: Maintenance and repairs performed by unauthorized personnel could result in damage or injury. Maintenance and repairs must be performed by authorized personnel only.

WARNING: Any alterations or modifications to this machine could result in damage to the machine or injury to the operator or other bystanders. Alterations or modifications not authorized by the manufacturer voids any and all warranties and liabilities.

WARNING: Electrical components to this machine can "short-out" if exposed to water or moisture.

Keep the electrical components of the machine dry. Wipe the machine down after each use. This appliance is for dry use only and is not to be used or stored outdoors in wet conditions.

WARNING: Operating a machine without observing all labels and instructional information could result in injury or damage. Read all machine labels before attempting to operate. Make sure all of the labels and instructional information are attached or fastened to the machine. Get replacement labels and decals from your ALTO distributor.

WARNING: Wet floor surfaces can be slippery. Water solutions or cleaning materials used with this type of machine can leave wet areas on the floor surface. These areas can cause a dangerous condition for the operator or other persons. Always put "Caution" signs around/near the area you are cleaning.

WARNING: Improper discharge of waste water may damage the environment and be illegal.

The United States Environmental Protection Agency has established certain regulations regarding discharge of waste water. City, state and national regulations regarding this discharge may also be in effect in your area. Understand and follow the regulations in your area. Be aware of the environment hazards of chemicals that you dispose.

WARNING: Only use the brushes provided with the appliance or those specified in the Operator's

Manual. The use of other brushes may impair safety.

CAUTION: Use of this machine to move other objects or to climb on could result in injury or damage.

Do not use this machine as a step or furniture. Do not ride on this machine.

CAUTION: Your machine warranty will be voided if anything other than genuine ALTO parts are used on your machine. Always use ALTO parts for replacement.

CAUTION: This machine contains lead acid batteries. The batteries must be disposed of in an environmentally acceptable manner.

Machine

Introduction

ALTO’s Scrubtec 743 and 751 automatic scrubbers are efficient and superior floor cleaning machines.

The Scrubtec uses one brush (rotary) to scrub a path 17" or 20" wide or 2 brushes (cylindrical) to scrub a path 17" wide. A squeegee wipes the floor while the vacuum motor removes the dirty solution from the floor - all in one pass.

The Scrubtec rotary comes complete with two - 12 volt batteries, one battery charger, either one brush or one pad driver, and one operator’s manual.

The Scrubtec cylindrical comes complete with two - 12 volt batteries, one battery charger, two brushes, and one operator’s manual.

Page -4 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Model

Machine Power Supply

SCRUBTEC 743 S Rotary

24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries

3-Lug Driver Style

SCRUBTEC 743 L Rotary

24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries

3-Lug Driver Style Pad or Brush

Traverse

Traverse Forward Speed

Traverse Reverse Speed

Brush Assist

Not Applicable

1/3 HP (0.25 kW)

Variable to 200 ft./min (61 m/min)

Not Applicable Variable to 140 ft./min. (43 m/min)

Low Voltage Cut-Off of Brush and Solution Battery Protection

Motor Vacuum

Solution Tank

Solution Level

3/4 HP(.569 kW) Acoustical High Efficient Tangential 3 stg

11 Gallons (42 liters)

Calibrated Level Indicator

11 Gallons (42 liters) Recovery Tank

Recovery Full Indicator

Parabolic Squeegee

Electric Shut-Off

Swing type with breakaway feature, No tool operation feature,

Squeegee Operation

Cleaning Swath

Motor, Brush

Brush / Pad Size

Brush Speed

Brush Pressure

Brush Solution Retention

Drive Wheels

Caster

On-Board Charger

Grade Cleaning

Length

Width

Height

32" (81cm) hard width with 34" (86cm) flex blade width

Reverse direction on floor and 3 - position manual lever style operation

17" (43.2 cm)

3/4 HP (0,56 kW) 5.2:1 High Torque Gear Box

17" (43.2 cm)

200 RPM

0-90 lbs. (0-40.8 kg)

Fiber Bristles

(2) 8" x 2" (20 cm x 5 cm) Neoprene tread

3½" X 1¼" (8.9 cm x 3.2 cm)

24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50

2%

48 3 /

4

" (123.8 cm)

19" (48.3 cm)

42" (106.7 cm)

Weight w/batteries (130AH) 327 lbs. (148.3 kg) 345 lbs. (156.5 kg)

Shipping Weight w/Batteries (130AH) 454 lbs. (206 kg)

Line of Sight (Operator Height = 5'8")

Noise Level

Vibration

Warranty

472 lbs. (214 kg)

7.5 feet (2.3 m)

73.5 dBA

0.1 m/s 2

Machine 3 Years, Polydur tanks 8 Years, Batteries 18 Months Pro-rated

Model

Machine Power Supply

SCRUBTEC 743 S C Cylindrical

24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries

Brush Assist

Not Applicable

1/3 HP (0.25 kW)

Variable to 200 ft./min (61 m/min)

Not Applicable

Low Voltage Cut-Off of Brushes and Solution

Variable to 140 ft./min. (43 m/min)

3/4 HP(.569 kW) Acoustical High Efficient Tangential 3 stg.

11 Gallons (42 liters)

Calibrated Level Indicator

11 Gallons (42 liters)

SCRUBTEC 743 L C Cylindrical

24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries

Traverse

Traverse Forward Speed

Traverse Reverse Speed

Battery Protection

Motor Vacuum

Solution Tank

Solution Level

Recovery Tank

Recovery Full Indicator

Parabolic Squeegee

Squeegee Operation

Cleaning Swath

Motor, Brush

Brush 2 per Machine

Brush Speed

Brush Pressure

Electric Shut-Off

Swing type with breakaway feature, No tool operation feature,

32" (81cm) hard width with 34" (86cm) flex blade width

Reverse direction on floor and 3 - position manual lever style operation

17" (43.2 cm)

(2) 3/4 HP (0,56 kW)

(2) 4" (10 cm)

1000 RPM

70 lbs. (31.8 kg)

Drive Wheels

Caster

On-Board Charger

Grade Cleaning

Length

Width

Height

(2) 8" x 2" (20 cm x 5 cm) Neoprene tread

3½" X 1¼" (8.9 cm x 3.2 cm)

24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50

2%

48 ¼" (122.6 cm)

20" (50.8 cm)

42" (106.7 cm)

Weight w/batteries (130 AH) 342 lbs. (155.1 kg)

Shipping Weight w/Batteries (130AH) 462 lbs. (213 kg)

Line of Sight -Operator Height = 5'8"

Noise Level

7.5 feet (2.3 m)

73.5 dBA

360 lbs. (163.3 kg)

487 lbs. (221 kg)

Vibration

Warranty

0.1 m/s 2

Machine 3 Years, Polydur tanks 8 Years, Batteries 18 Months Pro-rated

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -5-

Machine Specifications (S20 Rotary and L20 Rotary)

Model

Machine Power Supply

Pad or Brush

Traverse

Traverse Forward Speed

Traverse Reverse Speed

Battery Protection

Motor Vacuum

Solution Tank

Solution Level

Recovery Tank

Recovery Full Indicator

Parabolic Squeegee

Squeegee Operation

Cleaning Swath

Motor, Brush

Brush / Pad Size

Brush Speed

Brush Pressure

Brush Solution Retention

Drive Wheels

Caster

On-Board Charger

Grade Cleaning

Length

Width

SCRUBTEC 751 S Rotary

24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries

3-Lug Driver Style

Brush Assist

Not Applicable

Not Applicable

SCRUBTEC 751 L Rotary

24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries

3-Lug Driver Style

1/3 HP (0.25 kW)

Variable to 200 ft./min (61 m/min)

Variable to 140 ft./min. (43 m/min)

Low Voltage Cut-Off of Brush and Solution

3/4 HP(.569 kW) Acoustical High Efficient Tangential 3 stg

11 Gallons (42 liters)

Calibrated Level Indicator

11 Gallons (42 liters)

Electric Shut-Off

Swing type with breakaway feature, No tool operation feature,

32" (81cm) hard width with 34" (86cm) flex blade width

Reverse direction on floor and 3 - position manual lever style operation

20" (50.8 cm)

3/4 HP (0,56 kW) 5.2:1 High Torque Gear Box

20" (50.8 cm)

200 RPM

0-90 lbs. (0-40.8 kg)

Fiber Bristles

(2) 8" x 2" (20 cm x 5 cm) Neoprene tread

3½" X 1¼" (8.9 cm x 3.2 cm)

24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50

2%

48 3 /

4

" (123.8 cm)

19" (48.3 cm)

Height 42" (106.7 cm)

Weight w/batteries (130AH) 327 lbs. (148.3 kg) 345 lbs. (156.5 kg)

Shipping Weight w/Batteries (130AH) 454 lbs. (206 kg) 472 lbs. (214 kg)

Line of Sight (Operator Height = 5'8")

Noise Level

Vibration

Warranty

7.5 feet (2.3 m)

73.5 dBA

0.2 m/s 2

Machine 3 Years, Polydur tanks 8 Years, Batteries 18 Months Pro-rated

Page -6 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Procedures For Transporting

How to Put the Machine Into a Van or Truck

WARNING: This machine is heavy. Get assistance before attempting to transport or move it. Use two able persons to move the machine on a ramp or incline. Always move slowly.

Do not turn the machine on a ramp. Do not stop and leave the machine on a ramp or incline. The loading ramp must be a minimum of 32" wide.

WARNING: Machines can topple over if guided over the edges of stairs or loading docks and cause injury or damage.

Stop and leave this machine only on a level surface.

When you stop the machine, put all switches into their

"OFF" position.

1. Make sure the loading ramp is at least eight

(8) feet (2.5m) long and a minimum of 32" (0.8m) wide, and strong enough to support the machine.

2. Make sure the ramp is clean and dry.

3. Put the ramp in position.

4. Remove squeegee assembly, brush housing and brush or pad driver before loading. ALTO recommends that both the solution tank and recovery tank are empty before loading.

5. On the L models only, turn the key switch "ON" and press the green "ON" button.

6. Align the machine on a level surface five (5) feet

(2 m) in front of the ramp.

7. Put the traverse knob at full speed (on L models only).

8. For the L machines, push in either one of the forward/reverse switches while pushing in the white reverse switch. Back the machine up the ramp. See figure 1.

9. For the S machines, push the machine backwards to the top of the ramp.

10. Switch machine "OFF", and on the L models, turn key switch "OFF".

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Figure #1

Page -7-

Procedures For Transporting (cont.)

11. Fasten the machine to the vehicle. ALTO recommends a strap over the top of the machine and a strap to keep the machine from rolling forward or backwards. If this is not done, there is a possibility of the machine toppling over. Three tie down points are provided on the steel frame of the machine, for securing machine (see figure 2a).

How to Remove the Machine From a Van or

Truck

1.

Make sure there are no obstructions in the area.

2. Make sure the unloading ramp is at least eight

(8) feet (2.5m) long and a minimum of 32"

(0.8m) wide, and strong enough to support the machine.

3. Make sure the ramp is clean and dry.

4. Put the ramp in position.

5. Unfasten the machine.

WARNING: The machine is heavy.

Make sure you use two able persons to assist in moving the machine down the ramp.

6. On S models, get two people to pull machine off ramp. It is recommended that the "S" model be unloaded in the forward position.

7. On the L models only, turn the key switch "ON" and press the green "ON" button.

8. Set the traverse center knob to the slowest forward speed setting. Carefully and slowly, drive the machine to the top of the ramp and start down (L models only).

9. While pushing in the right or left forward switch the machine will go forward (L models only).

See figure 2.

10. As the machine begins to travel down the ramp, push in the forward switch to maintain a slow downward speed (L models only).

11. Replace squeegee assembly, brush housing, and brush or pad driver after machine is unloaded and ready to use.

Figure #2

Tie Down Point

(both sides of machine)

Tie Down Point

Figure #2a

Page -8 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

SYMBOLS USED ON SCRUBTEC 743 and 751

Warning

-

+

Solution Control

Power

Brush Up/Down

Traverse Speed Control

("L Class" only)

Vacuum/Squeegee

Control

Battery Meter

AC Power Indicator

Page -9CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

SYMBOLS USED ON SCRUBTEC 743 and 751

WARNING

71018A

READ OPERATOR'S

MANUAL BEFORE

OPERATING THIS

MACHINE

RISK OF FIRE

• Use only commercially available floor cleaners and waxes intended for machine operation.

• Do not use flammable materials.

RISK OF INJURY

OR DAMAGE TO

MACHINE

• Do not turn, stop or leave machine on a ramp or dock.

71015A

WARNING

READ OPERATOR'S

MANUAL BEFORE

OPERATING THIS

MACHINE

EXPLOSIVE GASES,

CAN CAUSE SEVERE

INJURY, DEATH

OR DAMAGE

TRANSFORMER.

• Keep flammable materials away from batteries. Charge in a cool well ventilated area.

BATTERIES

CONTAIN SULFURIC

ACID. CAN CAUSE

SEVERE INJURY.

• Avoid contact with skin eyes, or clothing. If contact, flush with water.

Get medical attention. If internal.

contact call physician.

WEAR

PROTECTIVE

EYE GEAR.

Page -10-

71017A

WARNING

MOVING PARTS.

CONTACT CAN

CAUSE SEVERE

INJURY.

• Do not place hands or feet under machine when in use.

71014A

WARNING

FALLING PARTS

CAN CAUSE

SEVERE INJURY.

• Make sure tank is secure before servicing.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Machine Control Panel

Electrical Power Indicator (See Figure 3, Item "A")

A yellow light will be illuminated when the charger is plugged into an AC electrical outlet. The electrical cord must be unplugged and stowed before operating the machine.

Key Switch (See Figure 3, Item "B")

The key switch is standard on the "L" models. It is used primarily for preventing unauthorized use by removing the key. To turn the control panel "ON", the key switch must be turned clockwise and then the green "ON" button must be pressed (see item "C"). To turn the control panel "OFF", turn the key switch counterclockwise.

ON/OFF Buttons (See Figure 3, Item "C")

Pressing the green button turns "ON" the power to the control panel (if the machine is equipped with a key switch, first turn the key clockwise). Pressing the red button turns "OFF" power to the control panel (if the machine is equipped with a key switch, the power can also be turned "OFF" by turning the key counterclockwise.)

NOTE: The "L model" machine is equipped with self diagnostics and will sometimes fail to operate if a fault is detected. Once the fault is corrected the machine can be reset by turning the power "OFF" and turning it back

"ON". If this fails to correct the problem, contact your authorized service personnel immediately.

NOTE: This machine is equipped with a battery power saving device. If the machine is unattended for more than 16 minutes, it will automatically shut itself off.

Battery Meter (See Figure 3, Item "D")

The battery meter indicates the relative charge of the battery pack. The meter has two green, one yellow and one red light. When the light switches to "red" the brush(es) and solution flow will stop. All other functions will continue to operate. The batteries must then be immediately recharged to prevent shortening the life of the battery pack.

Control Handles (See Figure 3, Item "E")

The control handles are located at the rear of the machine. They are used to guide the machine.

Traverse Speed Knob (See Figure 3, Item "F")

To increase speed, turn knob clockwise. The machine will not traverse when the knob is turned fully counterclockwise.

Forward/Reverse Switch (See Figure 3, Item "G")

On Traverse "L" Models Only - The forward/reverse switch starts the traverse motor forward and when the brush head is in the down or scrub position it also activates the brush motor(s) and solution flow. There is a two second delay for the brush motor(s) to stop after releasing the switch. Either the right or the left switch can be used. Use either switch in conjunction with the white reverse switch to reverse the traverse motor.

"S" Model - On the non-traverse models these switches activate the brush motor(s) and solution flow when the brush head is in the down or scrub position.

E

C

A

I

G

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

F

H

L M N 0 P Q

Figure 3

J

K

G

B

E

Page -11-

D

Machine Control Panel

Reverse Switch (See Figure 3, Item "H")

On Traverse "L" Models Only - The reverse switch, when used in conjunction with one of the forward/ reverse switches, causes the machine to reverse directions. The reverse speed is 70% of the forward speed.

Brush Motor Buttons (See Figure 3, Item "I")

To lower brush head and activate brush motor(s) and solution flow, press and hold the down button until the green light is illuminated. Continue to press and hold down button for additional brush pressure, or until brush head stops. The brush motor(s) and solution will then operate when either one or both of the forward/reverse button(s) are pressed. To deactivate the brush motor(s) and solution flow, raise the brush head by pressing and holding the up button until the green indicator light turns off.

E

C

Solution Control Buttons (See Figure 3, Item "J")

The solution control buttons regulates the flow of chemical solution to the floor. When powering up the machine, the solution setting will automatically adjust to the mid setting (see your authorized ALTO serviceman if a different setting is preferred). To increase the flow, press and hold or press the upper button (+) multiple times. The green bar will move up the scale as the flow increases. To decrease the flow, press and hold or press the lower button (-) multiple times. The green bar will move down the scale as the flow decreases. When the bar reaches the lowest setting the solution flow is turned "OFF". NOTE: The solution will only flow when the brush head is down and in the operating position.

Vacuum Motor Switch (See Figure 3, Item "K")

To activate the vacuum motor, lower the squeegee handle. The handle has three positions. Lowest position is the operating water pickup position. The center position is used during transport to clear vacuum hose. The upper position is the vacuum motor "OFF" position.

Circuit Breakers (Figure 3, Items "L", "M", "N",

"O", "P" & "Q"

The circuit breaker reset buttons are located on the lower control handle. The breakers are located as follows:

Item "L" - Control Circuits (5 amps)

Item "M" - Control Module and Head Actuator (5 amps)

Item "N" - Vacuum Motor (25 amps)

Item "O" - Rotary Brush Motor (40 amps) or

Cylindrical Brush Motor (25 amps)

Item "P" - Cylindrical Brush Motor (25 amps)

Item "Q" - Traverse Motor (25 amps) (L Models Only)

A

I

G

F

H

L M N 0 P Q

Figure 3

J

K

G

E

B

D

Page -12 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Machine Controls and Features

Squeegee Lift Handle, See Figures 4 and 5

The squeegee lift handle is located in the control handle. It is used to raise or lower the squeegee. The vacuum motor is turned on when the handle is lowered to either the center or lowest position.

Float Shut Off, See Figure 6

The shut-off switch for the vacuum motor is located in the recovery tank. It automatically turns off the vacuum motor when the recovery tank is full. NOTE: If excessive foaming occurs in recovery tank, defoamer must be added. Damage to vacuum motor could result from foam entering into the vacuum motor.

Parking Brake (Optional)

NOTE: Parking Brake must be used if operating machine on surfaces with greater than 2% gradient.

The parking brake prevents movement of the machine.

CAUTION: Do not activate the parking brake while the machine is moving.

The brake is located to the right hand rear of the machine. Press pedal to activate brake and lift pedal to disengage brake.

Figure 4

Figure 5

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Figure 6

Page -13-

How To Prepare the Machine For Operation

The Scrubtec machines use two 12-volt batteries. The batteries are located in the battery compartment under the recovery tank. It is recommended to remove the recovery tank when installing the batteries.

How To Install The Batteries

To install the batteries, follow this procedure:

1.

Turn the machine off. Set brake (if equipped).

2.

Make sure the recovery tank is empty. NOTE:

The recovery tank on the Scrubtec is designed for easy removal and cleaning.

3.

Disconnect the hoses from the recovery lid (See

Figure 7.)

4.

Unhook the recovery tank drain hose valve from it's hanger bracket and lay the loose end on the floor (See figure 8.)

WARNING: Before raising or removing the recovery tank, be sure tank is empty. Do not operate or perform maintenance on the machine while the recovery tank is in the open position. The tank can be accidentally bumped and it may slam shut.

5.

Disconnect the blue electrical float connector

(See Figure 9).

6.

Unhook the tether clip from the recovery tank

(See Figure 10).

7.

Unlatch and stow prop rod back in solution tank and close recovery tank.

8.

While pushing the tank to the rear, carefully lift and remove recovery tank from the machine.

Leave the recovery drain hose attached to the recovery tank.

Figure 7

Figure 8

Figure 9

Page -14-

Figure 10

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

How To Prepare the Machine For Operation

9.

Place the batteries in the compartment shown in

Figure 11.

WARNING: The batteries are heavy. Lifting batteries without help could result in an injury. Get help to lift the batteries.

WARNING: Working with batteries can be dangerous. Always wear eye protection and protective clothing when working near batteries. NO SMOKING!

10. Connect the cable between the batteries and install the long machine cables as indicated (See

Figure 11).

11. Secure the batteries in place with the battery straps (See Figure 12).

12. Reinstall the recovery tank making sure the pivot pin in the recovery tank is installed under the metal plate on the solution tank (See figure 13A.)

13. Reattach the tether to the recovery tank (See figure 10).

WARNING: The recovery tank can fall off of the machine when opening the tank or operating the machine, if the recovery tank is not properly installed.

Make sure that the recovery tank pivot pin is under the metal plate on the solution tank and the tether is attached to the recovery tank.

14. Reconnect the vacuum and squeegee hoses to the recovery lid. Make sure the hose to the vacuum motor and the rear squeegee hose are installed over the top of the drain hose (See figure 13B).

15. Reconnect the blue float connector (See figure 9, page 12).

16. Charge the batteries before using the machine.

-

+

Figure 11

Figure 12

Figure 13A

-

+

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Figure 13B

Page -15-

How To Prepare the Machine For Operation

Battery Maintenance

The electrical power to operate the machine comes from the storage batteries. Storage batteries need preventative maintenance.

To maintain the batteries in good condition, follow these instructions.

1.

Keep the electrolyte at the correct level. The correct level is between 1/4" (1/2 cm) below the bottom of the tube in each cell and above the tops of the plates. Check the level of the electrolyte each time you charge the batteries. See figure 14.

NOTE: Check the level of electrolyte prior to charging the batteries. Be sure the plates in each cell are covered with electrolyte before charging. Do not top off the cells prior to charging the battery. Electrolyte expands during charging. As a result, the electrolyte could overflow from the cells. Always top off the cells with distilled water after charging.

CAUTION: Irreversible damage will occur to the batteries if electrolyte does not cover the plates. Keep the electrolyte at the correct level.

CAUTION: Machine damage and discharge across the tops of the batteries can occur if the batteries are over filled.

Do not fill the batteries up to the bottom of the tube in each cell.

Wipe any acid from the machine or the tops of the batteries. Never add acid to a battery after installation.

CAUTION: Batteries must be refilled with distilled water only. Do not use tap water as it may contain contaminants that will damage batteries.

2. Keep the tops of the batteries clean and dry. Keep the terminals and connectors clean. To clean the top of the batteries, use a damp cloth with a weak solution of ammonia or bicarbonate of soda solution. To clean the terminals and connectors, use a terminal and connector cleaning tool. Do not allow ammonia or bicarbonate of soda to get into batteries.

3.

Keep the batteries charged.

4.

To drain the battery compartment: See Figure 15.

a. Always wear eye protection and protective clothing.

b. Add a weak solution of ammonia or bicarbonate of soda solution to the battery compartment to neutralize any spilled acid.

c . Pull drain hose out from under the transaxle.

d. Place your hand behind flange and open the valve.

e. When empty, close valve.

f. Replace valve and drain hose on top of transaxle.

g. Neutralize any acid spills with ammonia or bicarbonate of soda.

Page -16-

Figure 14

Figure 15

Correct Level

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

How To Prepare the Machine For Operation

How To Charge The Batteries

WARNING: Charging the batteries in an area without adequate ventilation could result in an explosion. To prevent an explosion, charge the batteries only in an area with good ventilation.

WARNING: Lead acid batteries generate gases which could explode. Keep sparks and flames away from batteries. NO

SMOKING!

To charge the batteries, follow this procedure:

1. Place the machine on a flat-level surface with adequate ventilation.

2.

Set the parking brake if one is provided.

3.

Remove power to the control panel by pressing the red "OFF" button. If the machine is equipped with a key switch, turn the key counterclockwise to the

"OFF" position.

4.

Before charging the batteries, the battery compartment needs to be vented. To vent the compartment, the recovery tank needs to be propped open.

WARNING: Before raising or removing the recovery tank, be sure tank is empty. Do not operate or perform maintenance on the machine while the recovery tank is in the open position. The tank can be accidentally bumped and it may slam shut.

5.

The Scrubtec is equipped with an on-board charger located behind the recovery tank (See Figure 17).

The charger is a 3-stage charger designed to maximize battery life. The AC power cord to the on-board charger is located in its storage compartment under the control handle at the rear of the machine (See Figure 16). Pull the cord out of the storage compartment.

6.

Connect the charger to a properly grounded single phase (3-wire) wall receptacle. NOTE: When the charger is plugged into the wall receptacle, the yellow light will be illuminated on the control panel next to the plug symbol and the charger with begin charging (see figure 3, item A).

3-Stage Charging Sequence:

• Bulk Stage - In the bulk stage of charging, the red light is illuminated on the charger (See

Figure 17). During this stage the charger is supplying its full amp output to the batteries. It will continue to charge the batteries at this rate until the batteries reach approximately 75% of their capacity.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Figure 16

Figure 17

Page -17-

How To Prepare the Machine For Operation

• Absorption Stage - In the absorption stage the red and green light will be illuminated on the charger

(See Figure 17). During this stage the charger maintains constant voltage and lets the batteries absorb the charge at their own rate.

• Float and Maintenance Stage - In the maintenance stage the red light turns off and only the green light will be illuminated on the charger (See

Figure 17. During this stage the charger applies a lower, closely regulated voltage to maintain full charge and prevents discharge. Batteries can be connected indefinitely without harm.

8.

Unplug charger power cord from the wall outlet before powering up control panel on machine. Store the charger power cord in the storage compartment located under the control handle (See Figure 16).

9.

Unlatch and stow prop rod back in solution tank and close recovery tank after charging has been completed.

NOTE: It is not necessary to remove the brush housing assembly when removing or installing the brush or pad driver. For greater access to the brush or when driving the machine up a ramp, the brush housing assembly can be removed. To remove brush housing assembly, pull outward on the spring loaded pin on the left side of the housing, then lift the brush housing assembly up and outward (See Figure 18). Reinstall the brush housing assembly in reverse order, making sure the cross bar in the brush housing is inserted into the two slots located in the motor mount and the spring loaded pin is locked into position (See

Figure 19).

How To Install Rotary Brush or Pad Driver (if equipped)

To install the brushes or pad drivers on the machine, follow this procedure:

1.

Turn the key switch clockwise ("L" models only). Press the green "ON" button.

2.

Raise the brush head by pressing and holding the brush up switch until brush head is in it's full up and rotated position (See Figure 20).

3.

Press the red "OFF" button or turn the key switch counterclockwise on machines equipped with key.

4.

Put a brush or pad driver under the brush motor plate and align the lugs on the motor with the slots on the brush gimbal.

5.

Push the brush up and rotate counter direction to scrub rotation, until lugs lock (See Figure 20).

6.

Reinstall brush housing if removed.

DANGER: Operating a machine that is not completely or fully assembled could result in injury or property damage. Do not operate this machine unless it is completely assembled.

Inspect the machine carefully before operation.

Page -18-

Figure 18

Figure 19

Figure 20

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

How To Prepare the Machine For Operation

How To Remove Rotary Brush or Pad Driver (if equipped)

To remove the brush or pad driver from the machine, follow this procedure:

1. Turn the key switch clockwise ("L" models only).

Press the green "ON" button.

2. Raise the brush head by pressing and holding the brush up switch until brush head is in it's full up and rotated position.

3. Press the red "OFF" button or turn the key switch counterclockwise on machines equipped with key.

4 To remove brush, rotate brush in the same direction to scrub rotation with a quick snapping action until brush releases (See Figure 21).

5. Reinstall brush housing if removed.

How To Change Or Rotate Cylindrical Brushes (if equipped)

To install or rotate brushes on the machine, follow this procedure:

1. Turn the key switch clockwise ("L" models only).

Press the green "ON" button.

2. Raise the brush head by pressing and holding the brush up switch until brush head is in it's full up and rotated position.

3. Press the red "OFF" button or turn the key switch counterclockwise on machines equipped with key.

4 Go to front of the machine and remove thumb screw from brush door (See Figure 22).

5. Lower door approximately 1/2 inch and slide door and bearing assembly off shaft (See Figure 23).

6. Remove brush spacer and brush by sliding off of brush shaft (See Figure 24).

7. Rotate brush or replace.

8. Slide brush on shaft and rotate slowly until drive pins are lined up with brush slots. Push brush all the way in.

9. Install brush spacer on shaft.

10. Slide brush door bearing assembly on shaft.

11. Raise door and install thumb screw.

DANGER: Operating a machine that is not completely or fully assembled could result in injury or property damage.

Do not operate this machine unless it is completely assembled. Inspect the machine carefully before operation.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

C

Figure 21

Figure 22

Figure 23

Figure 24

Page -19-

How To Operate The Machine

How To Operate The Squeegee

The squeegee wipes the floor while the vacuum motor removes the dirty solution from the floor. Use your hand to lower or raise the squeegee handle. To operate the squeegee, follow this procedure:

1. To lower the squeegee and start the vacuum motor, move the squeegee lever to the right and down (See figure 25).

2. To raise the squeegee, lift the squeegee lever up

(See figure 26.)

NOTE: The center position lets the vacuum motor continue to run with the squeegee off the floor to avoid drips and also allows you to back up the machine.

How To Fill The Solution Tank

The solution tank is filled at the rear of the machine (See figure 27). To fill the solution tank follow this procedure:

1. Add a cleaning chemical to the solution tank. For the correct amount of chemical, follow the directions shown on the container.

2.

Remove the solution lid and fill the solution tank with water.

WARNING: Water solutions or cleaning materials used with this type of machine can leave wet areas on the floor surface. These areas can cause a dangerous condition for the operator or other persons. Always put

CAUTION signs near the area you are cleaning.

WARNING: Machines can ignite flammable materials and vapors. Do not use with or near flammables such as gasoline, grain dust, solvents and thinners. Use only a commercially available cleaners and concentrations intended for floor scrubbing applications.

WARNING: ALTO recommends a maximum water temperature of 120 o F (49 o C).

Operating The Machine

NOTE: Put the machine in the lowest traverse speed setting. Use the machine in an area that has no furniture or objects until you can do the following:

1.

Move the machine in a straight direction, forward and backward.

2.

Stop the machine safely.

3.

Turn the machine both left and right and return to a straight direction.

To move the machine, follow this procedure:

1.

Release the parking brake (if equipped with machine).

2.

Turn the key switch clockwise to the "ON" position (on

"L" models only). Press the green "ON" button.

3.

Raise the brush to the highest setting.

4.

Raise the squeegee.

Page -20-

Figure 25

Figure 26

Figure 27

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

How To Operate The Machine

5.

When either the left or right forward/reverse switches

(figure 28, item A) are pushed in, the machine will go forward ("L" models only).

6.

Control the speed of traverse by using the traverse speed control knob ("L" models only) (figure 28, Item

C).

7.

To stop, release the forward/reverse switch.

8.

To reverse the machine, push in the white reverse switch (figure 28 item B) and either the right or left forward/reverse switch (figure 28 item A) at the same time ("L" models only).

9.

To stop, release the forward/reverse switch.

10. To turn the machine, push the rear of the machine to the side.

11. When you stop the machine, press the red "OFF" button or turn the key switch counterclockwise to the

"OFF" position ("L" models only). Remove the key and set the parking brake (if equipped).

A

How To Clean A Floor

WARNING: Water solutions or cleaning materials used with this type of machine can leave wet areas on the floor surfaces. These areas can cause a dangerous condition for the operator or other persons. Always put CAUTION signs near the area you are cleaning.

To clean a floor follow this procedure:

1. Set the parking brake (if equipped with machine.)

2. Put the water and a cleaning chemical in the clean solution tank.

3. Release the parking brake (if equipped with machine.)

4. Turn the key switch clockwise to the "ON" position ("L" models only). Press the green "ON" button.

5. Lower the squeegee.

6. Press the brush down button until yellow light is illuminated and the correct pressure is achieved.

WARNING: This machine is capable of maximum head pressure with worn pads or brushes. With this feature, there is the possibility of exceeding the recommended brush pressure on new pads or brushes. This will either create re-occurring circuit breaker tripping or the possibility of lost traction and control. The brush switch should be activated to accomplish only enough brush pressure for the job. This will allow longer battery life and cleaning time.

NOTE: Keep the machine moving when the brush is rotating on the floor. Pre-wet brush/pad or keep light pressure on brush until solution flow is adequate to keep brush/pad from scratching the floor.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

B

C

A

Figure 28

Page -21-

How To Operate The Machine

To pre-wet brushes you should first turn the speed knob to the lowest traverse setting on the "L" model. Then on both the "S" and "L" models, lower brushes until brushes are just touching the floor and the yellow light on the control panel in illuminated. Activate the forward/reverse switch to start motor and solution flow.

NOTE: On the "L" model, the machine will not move when the traverse speed knob is rotated fully counterclockwise.

7. Adjust the flow of clean solution to the flow desired.

8. Move the machine across the floor in the forward direction.

9. Make a 180° turn.

NOTE: When you make more passes across the floor, let the brush clean approximately 2 inches (5 cm) of the area already cleaned by the brush.

NOTE: During most cleaning procedures, apply and remove the solution in one operation.

How To Clean A Very Dirty Floor

To clean a very dirty floor, follow this procedure:

1.

Apply solution to the floor.

2.

Do not lower the squeegee. This will keep the vacuum motor off.

3.

Lower the brush or pad and scrub the floor.

4.

Scrub the floor again with additional solution and lower the squeegee.

5.

Pick up all the solution with the squeegee.

Maintenance

WARNING: Maintenance and repairs must be done by authorized personnel only.

WARNING: Always empty the solution tank and recovery tank before doing any maintenance.

WARNING: Keep all fasteners tight.

These Maintenance Procedures Must Be Done

Every Day

Keep the machine clean, it will need fewer repairs and have longer life.

Do These Procedures When You Begin Your Work Period

1.

Disconnect AC power from battery charger (follow charger instructions).

2.

Store AC power cord to charger in machine storage compartment (See Figure 29).

3.

Make sure the screen filter is installed properly in the recovery lid and is clean (See figure 30).

Figure 29

4.

Make sure the recovery tank lid is on correctly (See

Figure 30).

Page -22-

Figure 30

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Maintenance

5.

Make sure the valve on the recovery drain hose is clean. Tightly close the valve.

6.

Make sure the brush/pad is in position and installed correctly.

7.

Make sure brush housing and skirts are in position on the brush head.

8.

Check the installation of the squeegee and squeegee hose.

9.

Make sure the solution drain / level indicator hose is secure on the storage mount on the rear of the machine.

Do These Procedures When You End Your Work

1. Drain the solution tank (Figure 31) and the recovery

tank (Figure 32). To drain the tanks , follow this

procedure: a. Press the red "OFF" button or turn key switch counterclockwise to "OFF" position

("L" model only).

b. Remove the drain hose from the back of the machine.

c. Put the end of the hose over a drain or bucket.

d. Recovery Tank:

1.) Turn the valve housing to the left (See

Figure 33).

2.) To open the valve completely, turn the housing fully to the left. Pull the housing off of the valve (Figure 34).

e. Solution Tank:

When hose is lowered below water level, water will flow.

2. Flush the tanks. To flush the tanks, put clean water in the tank through the opening on top of the tank.

3. If a tank or drain hose has an obstruction, use a pressure water hose to flush the tank or hose. Put the water hose into the drain hose.

4. Leave the tanks and the recovery drain valve open to dry in the air.

5. Check the squeegee blade. Use a cloth to clean the squeegee blade. If the squeegee blade is damaged or worn, turn or replace the blade.

6. Check and clean the recovery lid gasket. Use a mild cleaning solution and rinse the parts in clean water.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Figure 31

Figure 32

Figure 33

Figure 34

Page -23-

Maintenance

7. On machines with cylindrical brush head, the debris tray needs to be emptied regularly to prevent overflow. To remove the debris tray from the machine follow this procedure (See Figure 35).

a. Go to the left side of the machine, to the rear of the cylindrical brush head.

b. Grab the end of the tray with the left hand and the center of the tray with the right hand.

c. Lift center of tray with right hand and slide tray out with left hand.

d. Empty tray and clean before sliding tray back in.

Make sure upper and lower slides are engaged.

Check the batteries and if necessary add distilled water after charging. The correct level is within 1/4 inch (1/2 cm) of the bottom of the tube in each cell.

CAUTION: Tap water may contain contaminants that will damage batteries.

Batteries must be refilled with DISTILLED WATER

ONLY.

WARNING: Lead acid batteries generate gases which can cause an explosion. NO SMOKING. Always wear eye protection and protective clothing when working near batteries.

Use a clean cloth and wipe the surface of the machine.

Charge the batteries. See the instructions in the section of this book called “How To Charge The Batteries”.

Maintenance Procedures To Be Done Every Week:

WARNING: Maintenance and repairs must be done by authorized personnel only.

Always empty the solution tank and the recovery tank before doing any maintenance. Keep all fasteners tight.

WARNING: Always wear eye protection and protective clothing when working near batteries. Do not put tools or other metal objects across the battery terminals or the tops of the batteries.

CAUTION: To prevent damage to the machine, and discharge across the tops of the batteries, do not fill the batteries above the bottom of the tube in each cell. Wipe any acid from the machine or the tops of the batteries. Do not add acid to battery after installation.

Page -24-

Figure 35

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Maintenance

NOTE: Always turn machine off before servicing machine.

WARNING: Always wear eye protection and protective clothing when working near batteries. NO SMOKING!

WARNING: Before raising or removing the recovery tank, be sure tank is empty. Do not operate or perform maintenance on the machine while the recovery tank is in the open position. The tank can be accidentally bumped and it may slam shut.

1. Disconnect the batteries. Use a cloth and a solution of ammonia or bicarbonate of soda to wipe the top of the batteries. Clean the battery terminals. Reconnect the batteries.

2. Check the hoses for leaks, obstructions and other damage.

3. On machines with cylindrical brush head, check the brush drive belts for proper tension. Belts must be tensioned properly to prevent slipping. To tighten the belts, follow this procedure: a. Remove belt cover by removing screws.

b. Loosen the 2 screws on either side of the motor pulley.

c. Use a small pry bar or large screwdriver to pry the motor upward to achieve correct belt tension. Pry on the motor close to where the motor contacts the brush head casting (See

Figure 36, A).

d. Hold tension and tighten 2 screws (See Figure

36,B).

e. Replace belt cover.

A

Figure 36

B

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -25-

Maintenance

Maintenance For The Squeegee

To remove the squeegee, follow this procedure:

1. Remove the squeegee assembly by loosening the two knobs that attach the squeegee to the machine. Pull the squeegee assembly off (See figure 37).

2. Inspect the squeegee blade.

3. If the blade is worn, turn the blade so that a new edge is in the wiping position.

4. Reinstall squeegee assembly on the machine.

How To Adjust The Squeegee

The following adjustments are set at the factory, however they may require slight adjustment.

Adjusting Squeegee Tilt:

The tilt of the squeegee causes the rear blade to raise up in the center or on the ends, depending on which direction the tilt is changed. For tilt adjustment, refer to figure 38. Loosen left and right screw "X". In order to bring the blades down in the center, tip "Y" down. To bring both ends down, tip "Y" up. Make very small adjustments and try it until a uniform flare is achieved.

Adjusting Squeegee Blades:

When properly installed the front blade should be approximately 0.06" (1.5mm) above the rear blade (See figure 39).

WARNING: Maintenance and repairs must be done by authorized personnel only .

WARNING: Electrical repairs must be done by

authorized personnel only.

Consult your authorized service person to do the service procedures.

Use only genuine ALTO parts.

Figure 37

Figure 38

REAR BLADE

0.06 (1.5 mm)

Figure 39

Page -26 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

Accessories

A

CCESSORIES

Description

Clarke Care Kit

29" Squeegee Assembly

32" Squeegee Assembly

Poly Dur Protectant

Hour Meter Kit

Key Switch Kit

Parking Brake Kit

Vacuum Muffler Kit

Power Wand Kit

Urethane Caster Assembly

Dual Direct Clutch Plate

Center Lock Pad Retainer

Squeegee Hose "S" Trap

Part No.

14607A

18820A

10129A

50478A

10656A

10490A

10491A

10492A

10489A

61290A

30034A

56941A

30482A

Rotary Disk Brushes and Pad Assemblies:

Description (743) Part No. (751) Part No.

Pad Driver Asm.

Polypropylene

10405A

52539A

30629A

30630A

Nylon

Lite Grit

Clean Grit

52540A

52543A

52541A

30631A

30632A

30633A

Cylindrical Brushes

Size Description

4"

4"

Polypropylene

Nylon

4"

4"

Clean Grit

Super Grit

Part No.

30231A

30232A

30233A

30234A

29" Squeegee Blades

Description

Blade, Rear - Gum Rubber

Blade, Rear - Nitrile Solid

Blade, Front - Ribbed Urethane

Blade, Front - Notched Neoprene

32" Squeegee Blades

Description

Blade, Rear - Gum Rubber

Blade, Rear - Nitrile Solid

Blade, Rear - Ribbed Orange

Blade, Front - Ribbed Natural

Blade, Front - Slit Grout

Blade, Front - Ribbed Orange

Part No.

30931A

30938A

30951A

30930A

Part No.

30067A

30081A

30085A

30066A

30079A

30083A

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -27-

HOW TO CORRECT PROBLEMS IN THE MACHINE

PROBLEM CAUSE ACTION

There is no solution flow.

The solution flow does not stop.

The solution tank is empty.

There is an obstruction in the solution hose or filter.

The solution valve or electric wiring is

damaged.

The control module is defective.

The solution valve is open.

The solution valve or wiring is damaged.

The solution valve is dirty

There is a damaged seat and washer in the solution valve.

The control module is defective.

The machine does not remove all the water from the floor.

The squeegee is up.

The squeegee tilt is not correct.

Fill the solution tank.

Remove the obstruction from the hose or filter.

Repair or replace the valve or the electric wiring.

Replace control module

Close or Clean the solution valve.

Repair or replace the valve and the wiring.

Clean the solution valve.

Replace the seat and washer.

The recovery tank is full.

The screen filter is dirty.

There is an obstruction or damage in the squeegee or squeegee hose.

The vacuum motor is not running.

Replace control module.

Lower the squeegee.

To adjust, see the section titled "How to Adjust the Squeegee".

Drain the recovery tank.

Clean the screen filter.

Remove the obstruction or repair the damage.

The squeegee hose is disconnected, or damaged

The squeegee blade is damaged, worn, or incorrectly installed.

The gaskets on the cover of the recovery tank are damaged.

Check for tripped breaker. Have an authorized service person make repairs.

Check and connect hose.

Turn or replace the squeegee blade.

Correctly install the squeegee blade.

Replace the gaskets.

The batteries do not give the normal running time.

The battery terminals are dirty or damaged.

The electrolyte level is too low.

The batteries are not fully charged.

The charger is damaged.

The battery is defective.

The batteries are disconnected.

Brush is in heavy scrub setting.

Clean the terminals and connectors. Replace the damaged cables. Charge the batteries.

Add distilled water to each cell and charge the batteries.

Charge the batteries for a full 16 hour charge.

Have an authorized service person repair the charger.

Check voltage of each cell while discharging.

Connect the batteries.

Adjust Pressure.

Page -28 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

PROBLEM

The cleaning is not even.

The machine does not run.

CAUSE

The scrub brush or pad is worn.

There is damage to the brush assembly, caster or the solution valve.

The brush motor is not running

The solution level is low.

The machine loses power.

Key or switch is off.

Batteries are disconnected.

Battery terminals are dirty.

Batteries are discharged

ACTION

Replace the scrub brush or pad.

Have an authorized service person make the needed repairs.

Check for tripped breaker. Reset. Check for loose connections.

Fill the solution tank.

NOTE: If the problem continues consult an authorized service person.

Reset the circuit breaker.

Turn key or switch on.

Check the battery connections.

Check battery meter and recharge

NOTE: If the problem continues consult an authorized service person.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -29-

NOTE S

Page -30 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

SCRUBTEC 743 S

SCRUBTEC 743 L

SCRUBTEC 751 S

SCRUBTEC 751 L

SCRUBTEC 743 S C

SCRUBTEC 743 L C

Section II

Parts and Service Manual

(70900A)

U.S. Patent No. 6,105,192; No. 6,557,207; No. 6,760,947

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -31-

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Final Assembly 5/05

1

2

3

13

14

12

Page -32-

5

4

2

3

3

2

12

15

16

12

11

6

10

9

8

2

7

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Final Assembly Parts List 5/05

14

15

16

NI

NI

9

10

11

12

13

Ref. #

1

2

3

6

7

4

5

8

NI

NI

NI

NI

NI = Not Illustrated

Part No.

Description

Page 32 Recovery Tank Assembly

980651 Washer, Flat 5/16"

80212A Screw, M8 x 1.25 x 35mm Hex Head

Page 34 Solution Tank Assembly

Page 48 Rotary Disk Head Assembly Option

Page 46 Cyl. Head Asm. Option (L17 Cyl. model only)

Page 44 Frame Assembly

80197A Screw, M8 x 1.25 x 20mm Hex Head

980652 Washer, Lock 5/16"

Page 42 Squeegee Assembly

Page 40 Squeegee Lift Assembly

80179A Screw, M6 x 1 x 15mm Pan Head

Page 38 Control Housing Assembly

Page 36 Electrical Assembly

30334A Tether

52570A Clip, Tether

40606A Battery, 130AH, 12V Wet Option

40605A Battery, 130AH, 12V Dry Option

40070A Battery, 100AH, 12V Gel Option

41206A Battery Cable (Taper Style)

41217A Battery Cable (Ring Style) (use w/gel batteries)

61337A Battery Cable Adapter (use w/gel batteries)

1

1

1

2

2

4

1

1

6

1

2

1

1

2

1

1

1

1

4

Qty

1

8

4

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -33-

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Recovery Tank Assembly 5/05

26

27

25

30

28

29

24

23

1

2

3

6A

6B 6C

4

5

8

6

7

9

10

12

11

13

18

19

14

15

14

17

16

20

21

22

18

Page -34 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

Recovery Tank Parts List 9/05

9

10

11

12

6B

6C

7

8

Ref. # Part No.

1 80176A

2

3

30207A

30065A

4

5

6

6A

692409

80196A

10660A

40002A

56459B

59877A

30218A

30227A

30226A

52560A

30225A

82100A

17

18

19

20

13

14

15

16

872102

962957

52206A

43402A

41809A

80193A

832002

35102A

25

26

27

28

21

22

23

24

61459A

980603

80110A

920296

752020

51060A

30482A

61451B

29 962666

30 53179A

NI ‹ 71014A

Description

Screw, M5 x .8 x 12mm Pan Head

Recovery Lid

Lid Gasket

Chain

Nut, M5 x .8 Hex

Float Switch Kit (includes 6A, 6B, 6C)

Float Switch (included in #6)

Strain Relief (included in #6)

Washer, Seal (included in #6)

Recovery Tank

Drain Housing

Drain Plug

O-Ring

Drain Body

Locknut, 1/2" Conduit

Nylon Clip, 5/16 OD

Screw, #10-16 x 1/2

Chain

Housing, Connector (included in 6A)

Contact (included in 6A)

Screw, M5 x .8 x 10mm Pan Head

Drain Valve Clamp

Drain Hose

Latch Plate

Washer, LK #10 Ext Tooth

Hose Clamp

Nut, 10-24

Clamp

Vacuum Hose

Squeegee Hose

Vacuum Screen

Screw, 10-24 x 3/4 Pan Head

Red Cable Tie

Label, Falling Parts

NOTE: ‹ indicates a change has been made since the last publication of this manual.

1

1

1

1

1

1

1

2

1

1

1

1

1

2

4

1

2

2

2

1

1

1

1

1

1

1

1

1

1

1

1

Qty

1

1

1

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -35-

37

38

36

39

14

6

12

2

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Solution Tank & Front Cover Assembly 5/05

45

39

44

40

4

1

2

3

46

5

43

41

42

6

2

2

6

9

8

7

7

12

2

6

13

18

3

17

16

19

20

15

14

21

47

35

32

34

33

23

21

27

21

26

28

24

23

22

Page -36 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Solution Tank & Front Cover Parts List 8/05

44

45

46

47

NI

40

41

42

43

36

37

38

39

32

33

34

35

24

26

27

28

20

21

22

23

20

20

20

20

17

18

19

20

13

14

15

16

8

9

12

13

Ref. # Part No.

1 80199A

2

3

980614

87026A

4

5

6

7

40724A

61297B

80179A

80180A

61298B

52551A

52548A

30608A

30221A

80202A

87036A

80196A

80209A

61457A

61456A

30286A

30702A

30703A

30704A

30705A

30706A

50248A

53607A

30172A

51204A

820207

30453A

59614A

51518A

51526A

55189A

31242A

30239A

30222A

61280A

980603

52552A

41809A

43401A

80210A

80176A

61345A

40817A

53562A

70666B

Description

Nut, M6 x 1 Hex Nylock

Lock Washer, 1/4" Ext. Tooth

Flat Washer, 1/4"

Vacuum Motor

Front Motor Mount

Screw, M6 x 1 x 15mm, Pan Head

Screw, M6 x 1 x 30mm, Pan Head

Rear Motor Mount

Battery Strap

Screw Tab

Front Cover, (Scrubtec 743)

Front Cover, (Scrubtec 751)

Screw, M5 x .8 x 15mm, Pan Head

Flat Washer, #10

Nut, M5 x .8 Hex Nylock

Shoulder Bolt, M5 x 6 x 8mm

Left Front Cover Bracket

Right Front Cover Bracket

Tank, Solution (Scrubtec 751 S)

Tank, Solution (Scrubtec 751 L)

Tank, Solution (Scrubtec 743 L)

Tank, Solution (Scrubtec 743 SC)

Tank, Solution (Scrubtec 743 LC)

Tank, Solution (Scrubtec 743 S)

Hose Clamp

Elbow, 1/4 NPT x 3/8

Hose

Valve, Solution

Adapter

Hose

Battery Drain Valve

Bushing

Hosebarb, 3.8 x 90°

Hosebarb, 1/2 x 90°

Bushing

Level, Drain Hose

Solution Lid

Drain Hose Hanger

Lock Washer, #10 Ext. Tooth

Battery Strap, w/Buckle

Contact, Connector

Housing, Connector

Screw, M6 x 1 x 10mm, Flat Head

Screw, M5 x .8 x 12mm, Pan Head

Hinge Bracket

Brush Mechanism

Filter Bowl

Label, ALTO (Front Cover)

1

1

1

1

1

2

1

6

1

1

1

1

1

1

2

1

4

4

1

6

4

1

1

1

Qty

2

10

4

8

2

1

1

2

1

2

1

1

2

2

1

2

1

4

1

1

2

2

2

2

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -37-

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Electrical Assembly 5/05

41

40

39

38

41

40

34

30

2

35

36

32

24

37

50

29

28

27

33

30

2

30

2

31

42

43

2

1

7

1

2

51

44

45

7

3

4

5

6

8

9

10

12

46

47

48

49

17

18

16

15

23

19

13

14

20

21

11

26

25

24

22

Page -38 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Electrical Parts List 9/05

NOTE: ‹ indicates a change has been made since the last publication of this manual.

Ref. # Part No.

193951

80205A

80204A

40169A

80208A

41811A

40612A

80222A

40633A

40634A

85389A

980666

60976A

52557A

40631A

80186A

40592A

80221A

40630A

40629A

80179A

980614

30097A

40635A

980607

962980

30287A

52548A

30175A

40614A

40615A

40611A

40609A

980692

438360

80178A

80202A

60975A

41810A

40613A

46106A

40626A

80206A

980603

80169A

80199A

60265A

60977A

61084A

61332A

52562A

80196A

912216

43006A

77094A

71015A

17

18

19

20

21

12

13

14

15

16

22

23

24

25

31

32

33

34

26

27

28

29

30

4

5

6

7

8

1

2

3

9

10

11

40

41

42

43

44

35

36

37

38

39

45

46

47

48

49

50

51 ‹

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Description Qty Qty

S17/20 L17/20

Screw, M6 x 1 x 15mm, Pan Head

Washer, Lock 1/4" Ext. Tooth

Insulator

6

12

1

6

12

1

Squeegee Switch

Washer, Lock #6 Ext. Tooth

Screw, 6-32 x 1, Pan Head

Strain Relief

Screw Tab

Squeegee Cam

Battery Charger, 115V, 50/60 Hz

Battery Charger, 230V, 50/60 Hz

Cord, Power Supply 115V

Cord, Power Supply 230V, European

Washer, Flat 5/16" SS

Squeegee Lift Spring

Shoulder Bolt, M6 x 8 x30mm

Screw, M5 x .8 x 15mm, Pan Head

Squeegee Cable

Screw, 3/8-16 x 5/8

Washer, 3/8" Ext. Tooth

Squeegee Lever

Squeegee Knob

Traverse Harness

Eyebolt, #10-24

Traverse Controller

Screw, M4 x .7 x 20mm, Pan Head

Main Harness, Traverse

Main Harness, Non-Traverse

Grommet, 8.5"

Screw, M5 x .8 x 20mm, Pan Head

Nut, M3 x .5, Nylock

Solenoid, Vacuum

Screw, M6 x 1 x 10mm, Pan Head

Contactor, Main

Red Battery Cable

Screw, M4 x .7 x 10mm, Pan Head

Relay, DPDT, 115V

Relay, DPDT, 230V

Contactor, Brush

Black Battery Cable

Rectifier

Terminal Block

Screw, M3 x .5 x 20mm, Pan Head

Washer, Lock #10 Ext. Tooth

Nut, M5 x .8 Hex

Nut, M6 x 1, Nylock

Nut Plate

Squeegee Lift Mount

Electrical Panel, Traverse

Electrical Panel, Non-Traverse

Strain Relief Bushing

Nut, M5 x .8 Nylock

Fuse, 15A

Fuse Holder

Label, Ground

Label, Gases & Chemicals

1

1

1

1

2

2

1

1

1

1

2

1

1

1

6

-

3

-

1

1

-

1

1

1

1

1

1

2

1

1

1

1

1

1

1

2

1

1

2

2

1

1

-

1

1

1

1

2

2

1

1

1

1

1

1

1

1

2

2

1

1

1

1

2

1

1

1

6

-

3

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

2

1

1

2

2

1

1

-

1

1

1

1

2

2

1

1

1

1

Page -39-

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Control Housing Assembly 5/05

Page -40 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Control Housing Parts List 5/05

13

14

15

16

9

10

11

12

Ref. # Part No.

1 962957

3

4

70352A

60979A

5

6

7

8

52555A

60978A

87036A

80196A

40597A

962330

30214A

50961A

80192A

30213A

980608

40126A

29

30

31

32

33

25

26

27

28

17

18

19

80191A

52556A

30220A

30228A

20 47380A

20B 55413A

21

22

80230A

87052A

23

24

41422A

41433A

41422A

41423A

80229A

40135A

980666

60259A

50962A

962262

70080A

83010A

Qty Qty Qty

Description S17/20 L17/20 L17 Cyl

Screw, 10-16 x 1/2"

Membrane Switch

6

1

6

1

6

1

Control Panel

Lever Gasket

Wear Plate

Washer, Flat #10

1

1

1

3

1

1

1

3

1

1

1

3

Nut, M5 x .8, Nylock

Panel Circuit Board

Screw, 6-32 x 3/8" Pan Head

Switch Lever

Spring, Switch

Screw, M5 x .8 x 16mm, Oval Head

Switch Housing

Washer, Flat #6

3

1

4

2

4

4

2

4

3

1

4

2

4

4

2

4

3

1

4

2

4

4

2

4

Switch Assembly

Screw, M3.5 x 6 x 10mm, Pan Head

Reverse Switch

Control Handle, Traverse

Control Handle, Non-Traverse

Key Switch

Key, Spare

Washer, Nylon

Washer, Key Switch

Circuit Breaker, 25A

Circuit Breaker, 40A

Circuit Breaker, 25A

Circuit Breaker, 5A

Arrow Clip, Nylon

Potentiometer Harness

Washer, Lock 3/8"

Potentiometer Retainer

Control Knob

Screw, Set 8-32 x 1/2" (included in #30)

Plate, Warning

Rivet, Pop

-

-

-

-

-

-

-

-

1

-

1

-

-

2

4

1

1

2

1

1

2

1

1

2

1

-

1

-

2

1

1

1

1

2

1

1

-

1

1

1

2

4

1

1

-

2

-

1

1

3

1

1

1

1

2

-

1

-

1

1

1

2

4

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -41-

15

14

7

16

11

17

8

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Squeegee Lift Assembly 5/05

1

2

3

4

12

11

10

9

8

6

5

7

5

13

Page -42 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Squeegee Lift Parts List 5/05

11

12

13

14

7

8

9

10

Ref. # Part No.

1

2

80196A

87036A

3

4

5

6

61305A

80199A

80198A

980652

15

16

17

80195A

87026A

61292A

61296A

980651

80194A

80101A

61461A

60256A

80197A

81104A

Description

Nut, M5 x .8, Nylock

Washer, Flat #10

Tube Bracket

Nut, M6 x 1, Nylock

Nut, M8 x 1.25, Nylock

Washer, Lock 5/16"

Screw, M6 x 1 x 20mm, Hex Head

Washer, Flat 1/4"

Pin Bracket

Squeegee Arm

Washer, Flat 5/16"

Screw, M8 x 1.25 x 30mm, Hex Head

Screw, 1/4-20 x 3 1/4"

Squeegee Swivel Spacer

Pivot Bracket

Screw, M8 x 1.25 x 20mm, Hex Head

Nut, 1/4-20 Nylock

1

1

2

1

1

1

4

2

Qty

1

1

2

1

1

2

1

1

1

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -43-

Page -44-

18

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

32" Squeegee Assembly 5/05

19

4

5

1

2

21

21

3

4

5

20

21

17

7

8

9

10

11

12

22

16

14

13

15

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

32" Squeegee Parts List 5/05

16

17

18

19

20

21

22

12

13

14

15

10

11

8

9

Ref. # Part No.

1 80252A

2

3

980657

60243A

6

7

4

5

30049B

81104A

60254A

50958A

30048A

60234A

50835A

930086

60232A

30067A

30047A

30066A

80011A

81301A

34260B

25201A

60358A

61370A

80280A

Description

Screw, ¼-20 x 1 Hex SS

Washer, ¼ Lock

Bracket, Squeegee Wheel

Wheel, Squeegee

Nut, ¼-20

Bolt, Shoulder 5 /

16 x 2¼

Ring, 3 /

8

ID Snap

Wheel, Guide, 4 Inch Diameter

Channel, Squeegee Weldment 32”

Latch, Squeegee Clamp

Rivet, 3/16 x .450 Aluminum

Strap, Clamp, Squeegee Retainer 32

Blade, Rear, Gum Rubber, 32”

Spacer, Squeegee 32

Blade, Front Ribbed 32”

Screw, 3 /

8

-16 x 3

Nut, 3 /

8

-16 Jam SS

Gasket

Knob

Shim, Squeegee Wheel

Weight, Squeegee

Nut, Squeegee Backup

1

1

1

1

1

2

2

1

2

2

4

2

Qty

4

4

2

2

4

2

1

2

2

2

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -45-

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Frame Assembly 5/05

34

24

12

24

35

32

33

12

36

12

31

37

12

31

1

12

2

1

12

31

4

1

2

5

3

16

7

1

8

9

18

17

19

21

20

2

15

12

11

10

1

2

12

15

22

11

10

13

14

23B

30

2

27B

12

24

12

29

38 28

27A

26

25

24

23A

Page -46 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751

Frame Parts List 5/05

Ref. # Part No.

1 80199A

2 87026A

3 80204A

4 80225A

54179A

5 80196A

7 61077A

8 80164A

9 61075A

10 80165A

11 980651

12 980692

13 61592A

14 80173A

15 80195A

16 980614

17 61302A

18 47422B

19 80203A

20 59610A

21 51526A

52635A

22 30311A

23A 61455A

23B 61076A

24 80197A

25 57423A

26 87616A

27A 61436A

27B 61437A

28 980205

29 60289A

30 81104A

31 80198A

32 61079A

33 61460A

34 61073A

35 80223A

36 980645

37 80226A

38 980652

Description

Nut, M6 x 1, Nylock

Washer, Flat 1/4" SS

Nut, M3 x .5 Nylock

Spring, Front (1.25" long)

Spring, Front (2.25" long)

Nut, M5 x .8 Nylock

Rear Actuator Bracket

Shoulder Bolt, M5 x 6 x 20mm

Actuator

Shoulder Bolt, M6 x 8 x 12mm

Washer, Flat 5/16"

Washer, Flat 5/16" SS

Lift Bracket

Bolt, M6 x 1 x 65mm Hex Head

Screw, M6 x 1 x 20mm Hex Head

Washer, Lock 1/4" Ext Tooth

Static Strap

Switch, Wisker

Screw, M3- x 5 x 30mm Pan Head

Solution Valve

Hosebarb, 90°, 3/8 x 3/8

Hosebarb, 90°, 3/8 x 1/2

Hose

Axle, Non-Traverse

Transaxle

Screw, M8 x 1.25 x 20mm Hex Head

Snap Ring

Washer, Nylon

Wheel, Non-Traverse

Wheel, Traverse

Washer, 5/16" Fender

Transaxle Clamp

Nut, 1/4-20 ESNA SS

Nut, M8 x 1.25 Nylock

Head Bracket

Caster Assembly

Main Frame

Nut, M10 x 1.5 Nylock

Washer, Flat 3/8"

Spring, Rear (2" long)

Washer, Lock 5/16"

1

1

1

1

-

8

-

2

1

1

2

-

1

2

1

-

1

-

2

-

2

2

4

1

1 -

1

1

12 10

-

2

-

-

-

1

2

1

1

1

3

2

Qty Qty Qty Qty Qty

S17 L17 L17 Cyl S20 L20

5

7

6

17

6

17

5

7

6

17

1

1

-

2

-

2

1

1

-

2

1

1

-

2

1

1

1

1

-

2

1

2

1

1

2 2

18 18

1

1

1

1

1

2

1

1

1

1

1

2

2

18

1

1

1

1

1

2

2

18

1

1

2

18

1

1

1

2

1

1

-

3

2

1

1

2

1

-

1

10

-

-

-

-

1

2 -

2

2

4

-

12

1

1

-

-

2

1

-

1

-

2

-

2

-

-

1

10

-

1

-

-

2

1

1

1

3

2

1

1

1

1

8

8

-

2

-

1

1

1

1

1

1

8

8

-

2

-

1

1

1

1

1

1

8

8

-

2

1

1

2

1

1

1

1

8

8

-

2

-

1

1

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -47-

CLARKE TECHNOLOGY

Cylindrical Head Assembly 5/05

Page -48 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

NOTE: ‹ indicates a change has been made since the last publication of this manual.

CLARKE TECHNOLOGY

Cylindrical Head Parts List 9/05

Ref. # Part No.

Description Qty

1

2

3

4

5

80198A

980652

980692

80165A

980651

Nut, M8 x 1.25 Nylock

Washer, 5/16" Lock

Washer, 5/16" Flat SS

Shoulder Bolt, M6 x 8 x 12mm

Washer, 5/16" Flat

3

3

13

2

2

6

7

8

9

80199A

87026A

80196A

61306A

Nut, M6 x 1 Nylock

Washer, 1/4" Flat SS

Nut, M5 x .8 Nylock

Switch Bracket

8

8

2

1

10 80176A Screw, M5 x . 8 x 12mm Pan Hd 17

11 61080A Head Bracket

12 915082 Key, 3/16" Sq. X 3/4"

13 50436A Drive Pin

14 30230A Debris Tray

15 61286A Brush Shaft

1

2

4

1

2

16 ref.

See accessories page, cyl. brush 2

17 61398A Brush Spacer 2

18 61449A Door, L.H. Brush

19 52477A Clamping Knob

20 80180A Screw, M6 x 1 x 30mm Pan Hd

1

2

8

21 30545A Skirt, Brush Door

22 30209A Bumper, Brush Door

23 30208A Bumper, Belt Cover

24 30544A Skirt, Belt Cover

25 53399A Flange Bearing

2

2

2

2

4

26 80179A Screw, M6 x 1 x 15mm Pan Hd

27 61282A Cover L.H. Belt

28 80214A Screw, M6 x 1 x 12 Hex Head

29 980657 Washer, 1/4" Lock

30 61396A Motor Pulley

31 21058A Brush Housing

32 57994A Screw, M6 x 20mm, Hex Head

33 61397A Brush Pulley

34 52818A Drive Belt

35 80178A Shoulder Bolt, M6 x 8 x 30mm

1

4

2

2

2

4

1

2

10

2

36 59932A Front Wheel 2

37 80187A Bolt, M8 x 1.25 x 30mm Hex Hd.

3

38 80177A Shoulder Bolt, M6 x 8 x 60mm

39 61448A Roller Bracket

40 80208A Screw, M6 x 1 x 10mm Pan Hd

2

2

4

41 30049B Wheel, 1 x 2 x 5/16

42 30235A Bumper, Housing

43 61287A Bumper Retainer

45 61285A Motor Cover

46 61283A Door, R.H. Brush

4

1

1

1

1

47

48

61450A Cover, R.H. Belt

‹

71017A Label, Moving Parts

49 782002 Clamp, Solution Tube

50 50248A Clamp, 3/8 Hose

51 10387A Solution Tube Assembly

52 61430A Motor

1

2

53 41602A Housing, Connector

54 41601A Contact, Connector

55 930113 Rivet, 1/8"

56 61288A Tray Rail

57 80158A Key, 1/8" Sq. x 1/2"

58 53182A Cap, Tube

59 80249A Screw, M5-.8 x 12 mm HH

60 962262 Screw, Set 8-32 x 1/4

4

4

3

1

2

1

2

1

2

2

2

2

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -49-

CLARKE TECHNOLOGY

SCRUBTEC 743 S, 743 L, 751 S and 751 L

Rotary Disk Head Assembly 5/05

Page -50 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 S, 743 L, 751 S and 751 L

Rotary Disk Head Parts List 5/05

22

23

28

29

30

31

24

25

26

27

32

33

34

35

Ref. # Part No.

5

6

7

8

1

2

3

4

9

10

11

12

13

18

19

20

21

14

15

16

17

20308A

980679

980210

980652

80197A

30216A

30607A

30217A

30599A

70667A

70897A

66550A

80224A

980643

920278

61289A

41602A

41601A

40591A

20014A

87026A

80199A

80165A

980651

80196A

61306A

980692

80249A

61078A

61593A

98451A

80184A

52515A

87036A

80227A

980645

80202A

80169A

77091A

Description Qty Qty

S17 L17

Housing, Connector

Contact, Connector

1

1

1

1

Brush Motor

Motor Shim

Washer, Flat 1/4"

Nut, M6 x 1 Nylock

1

1

2

2

2

2

1

1

Shoulder Bolt, M6 x 8 x 12mm

Washer, Flat 5/16"

Nut, M5 x .8 Nylock

Switch Bracket

Washer, Flat 5/16"

Screw, M5 x .8 x 12mm Hex Head

Motor Mount Bracket

Motor Mount Bracket -

2

2

3

1

2

2

1

-

1

2

2

3

1

2

2

Washer, Lock 7/16"

Bolt, M10 x 1.5 x 25mm Hex Head

Motor Adaptor

Washer, Flat 3/4"

Washer, Impeller

Washer, Lock 5/16"

Screw, M8 x 1.25 x 20mm Hex Head

Upper Brush Housing

Upper Brush Housing

Lower Brush Housing

Lower Brush Housing

Label, 17

Label, 20

Pin Assembly

Shoulder Bolt, M5 x 6 x 16mm

Washer, Flat

Nut, 1/2-20 SS Hex

Motor Cover Rod

Bearing Sleeve

Washer, Flat #10

Extension Spring

Washer, Flat 3/8"

Screw, M5 x .8 x 15mm, Pan Head

Nut, M5 x .8 Hex

Label, Moving Parts

1

1

1

1

1

2

1

2

1

2

2

-

1

-

1

-

1

1

1

1

1

1

1

4

4

1

2

-

1

1

1

1

1

1

2

2

-

1

-

1

-

1

1

1

1

1

1

1

4

4

2

2

1

1

1

1

1

1

1

1

1

1

1

1

4

4

1

2

-

1

1

1

1

1

1

1

1

2

2

3

1

2

2

2

2

1

1

Qty

S20

1

1

2

2

1

1

1

1

1

1

1

1

1

1

1

1

4

4

1

2

-

1

1

1

1

1

1

1

1

2

2

3

1

2

2

2

2

1

1

Qty

L20

1

1

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -51-

CLARKE TECHNOLOGY

SCRUBTEC 743 S, 743 L, 751 S and 751 L

Gearbox Assembly and Parts List 5/05

1

2

3

4

5

7

8

Ref # Part No. Description

1 57846A Ring, Snap

2

3

507641

52050A

Seal, Oil, Small

Cap End

7

9

4

5

56668A

51176A

902605

58144A

O-Ring

Bearing, Large

Bearing, Small

Seal, Oil Large

Qty

1

1

1

1

1

1

1

10 NI Darina EP2 Grease 4 oz.

11 52855A Complete Gearbox Asm. 1

Page -52 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 S, 743 L, 751 S and 751 L

Brush Motor Assembly and Parts List 5/05

Seam Location

13 7 12

15

5

6

4

1 2

3

14

16

12

17

11

8

9

10

13

* 14

15

16

17

10

11

12

13

6

7

8

9

Item

1

2

3

4

* 5

Part No.

Description

56478A Stator Frame Assembly (w/Magnets & Clips)

50142A Armature Assembly (w. B.E. & F.E. Bearings)

902654 Bearings B.E.

902550 Bearing F.E.

Commutator Bracket Assembly

(w/Brush BRD Assembly Leads)

50520A Commutator Bracket

56480A Strain Relief

962546 Brush Board Screw

50517A Brush Board Assembly (w/ Springs & Brushes)

448396 Brush Spring

40826A Brush Assembly

55657A Lead Assembly

55656A Lead Assembly

Helical Washer

50515A Thru Bolt

80501A Shaft Key

54238A B.E. Bracket Assembly (Gear Box)

Qty

1

1

1

1

1

1

2

2

1

1

1

2

1

1

4

4

* NOTE: Parts not available at this time.

1

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -53-

6

CLARKE TECHNOLOGY

Transaxle Drawing 5/05

BLK

4, 5

RED

1

3

2

3

4

5

6

Item

1

2

Part No.

Description

10135A Wheel Flange Kit

51056A Transaxle Mounting Sleeve

40593A Motor Brush

40594A Motor Urethane Sleeve

40595A Motor

40596A Transaxle Only

Specifications:

- Motor: 24VDC, Permanent Magnet, Tenv

- Transaxle: 30:1 Ratio

- Gear Oil: Mobile SHC634 12 oz.

Qty

2

2

1

1

2

1

Page -54 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 S, 751 S and 743 S C

Connection Diagram 5/05

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -55-

CLARKE TECHNOLOGY

SCRUBTEC 743 S, 751 S and 743 S C

Electrical Schematic 5/05

Page -56 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

CLARKE TECHNOLOGY

SCRUBTEC 743 L, 751 L and 743 L C

Connection Diagram 5/05

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -57-

CLARKE TECHNOLOGY

SCRUBTEC 743 L, 751 L and 743 L C

Electrical Schematic 5/05

Page -58 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

NOTE S

CORPO

HEADQUARTERS

Nilfisk-Advance Group

Sognevej 25

2605 Brøndby

Denmark

Tel: (+45) 43 23 81 00

SUBSIDIARIES

ALTO

48 Egerton St.

PO Box 6046

Silverwater NSW 2128

Australia

Tel: (+61) 2 8748 5966

Fax: (+61) 2 8748 5960

ALTO Österreich GmbH

Nilfisk Advance AG

Metzgerstrasse 68

5101 Bergheim/Salzburg

Austria

Tel: (+43) 662 456 400 11

Fax: (+43) 662 456 400 34

E-mail: [email protected]

www.-alto.at

Wap do Brasil Ltda.

Rua das Palmeiras,

350-Bairro Capela Velha

83.705-500 - Araucária - Paraná

Brasil

Tel: (+55) 41 2106 7400

Fax: (+55) 41 2106 7403/7404

E-mail: [email protected]

ALTO Canada

24 Constellation Road

Rexdale

Ontario M9W 1K1

Canada

Tel: (+1) 416 675 5830

Fax: (+1) 416 675 6989

ALTO Ceskà republika s.r.o.

Zateckých 9

14000 Praha 4

Czech Republic

Tel. (+420) 24 14 08 419

Fax (+420) 24 14 08 439

E-mail: [email protected]

ALTO

Division of Nilfisk-Advance A/S

Industrivej 1

9560 Hadsund

Denmark

Tel: (+45) 72 18 21 00

Fax: (+45) 72 18 21 05

E-mail: [email protected]

E-mail:[email protected]

www.-alto.dk

ALTO Food Division

Division of Nilfisk-Advance A/S

Blytækkervej 2,

9000 Aalborg

Denmark

Tel: (+45) 72 18 21 00

Fax: (+45) 72 18 20 99

E-mail: [email protected]

www.-alto.com

ALTO France SA

Aéroparc 1

19 rue Icare

67960 Entzheim

France

Tel: (+33) 3 88 28 84 00

Fax: (+33) 3 88 30 05 00

E-mail: info@-alto-fr www.-alto.com

ALTO

Division of Nilfisk-Advance A/S

Guido-Oberdorfer-Str. 2-8

89287 Bellenberg

Germany

Tel: (+49) (0) 730 67 20

Fax: (+49) (0) 730 67 23 10

E-mail: [email protected]

[email protected]

www.-alto.de

ALTO

Division of Nilfisk-Advance Ltd.

Bowerbank Way

Gilwilly Industrial Estate

Penrith Cumbria CA 11 9BQ

Great Britain

Tel: (+44) 1 768 86 89 95

Fax: (+44) 1 768 86 47 13

E-mail: [email protected]

www.-alto.co.uk

ALTO Hungary Kft

Csengery ut. 119

8800 Nagkanizsa

Hungary

Tel: (+36) 93 509 701

Fax: (+36) 93 509 704

ALTO DEN-SIN Malaysia Sdn Bhd

SD14, Jalan KIP 11

Taman Perindustrian KIP

Sri Damansara

52200 Kuala Lumpur

Malaysia

Tel: (+603) 6274 6913

Fax: (+603) 6274 6318

E-mail: [email protected]

ALTO Nederland B.V.

Camerastraat 9

1322 BB Almere

The Netherlands

Tel: (+31) 36 5460 756

Fax: (+31) 36 5460 700

E-mail: [email protected]

Postbox 60112

1320 AC Almere

The Netherlands

ALTO Norge AS

Bjørnerudveien 24

1266 Oslo

Norway

Tel: (+47) 22 75 17 70

Fax: (+47) 22 75 17 71

E-mail: [email protected]

www.-alto.no

ALTO DEN-SIN

Singapore Pte. Ltd.

No. 17 Link Road

Singapore 619034

Singapore

Tel: (+65) 6268 1006

Fax: (+65) 6268 4916

Web: www.densin.com

E-mail: [email protected]

ATLO

Division of Nilfisk-Advance S.A.

Torre D'Ara

Paseo del Rengle, 5 Pl. 10

08302 Mataró Barcelona

Spain

Tel: (+34) 93 741 24 00

Fax: (+34) 93 757 80 20

E-mail: [email protected]

www.-alto.com

ALTO Sverige AB

Aminogatan 18, Box 40 29

431 04 Mölndal

Sweden

Tel: (+46) 31 706 73 00

Fax: (+46) 31 706 73 41

E-mail: [email protected]

www.-alto.se

ALTO U.S. Inc.

2100 Highway 265

Springdale

Arkansas 72764

USA

Tel: (+1) 479 750 1000

Fax: (+1) 479 756 0719

E-mail: [email protected]

ALTO U.S. Inc.

1100 Haskings Road

Bowling Green

Ohio 43402

USA

Tel: (+1) 419 352 7511

Fax: (+1) 419 353 7187

E-Mail: [email protected]

ALTO Cleaning Systems Inc.

12249 Nations Ford Road

Pineville

North Carolina 28134

USA

Tel: (+1) 704 971 1240

Fax: (+1) 704 971 1241

E-mail: [email protected]

www.-alto.com

CLARKE TECHNOLOGY LIMITED U.S. WARRANTY

This Clarke Technology Industrial/Commercial Product is warranted to be free from defects in materials and workmanship under normal use and service, when operated and maintained in accordance with Clarke Technology's Maintenance and

Operations instructions. The warranty period is subject to the conditions stated below.

3 YEARS FOR PARTS AND 1 YEAR FOR SERVICE LABOR (See exceptions below)

Motors must be inspected for carbon motor brush wear at six-month intervals by an authorized Clarke Technology repair station. Failure to comply with the six-month inspection requirement or failure to replace worn motor brushes identified during the inspection will void the warranty on the motors. Cost of the six-month inspection and replacement of carbon motor brushes is the responsibility of the purchaser. In the event of a warranty claim on the motors, proof of inspection and any required motor brush replacement must be provided. This warranty is extended only to the original purchaser for use of the product. It does not cover normal wear parts such as electrical cable, rubber parts, hoses and motor brushes.

BATTERY WARRANTY

In addition to the items above, any original equipment Clarke Technology Battery which becomes unserviceable under normal use within a period of ninety (90) days from date of sale to the original user will be repaired or replaced with one of equal specification at our option, F.O.B. any authorized Clarke Technology Sales or Service Branch, with no charge to the user, except transportation costs. After expiration of the above ninety (90) day period, any battery which fails under normal use will be adjusted to the original user with a new battery of equal specification on an eighteen (18) months pro rate basis from the date of purchase. Adjustment will be determined using the then current list price, plus transportation costs.

Warranty is rendered null and void if battery is not kept filled to the proper level with DISTILLED WATER.

CLARKE TECHNOLOGY: POLYDUR ® AUTOMATIC SCRUBBER SOLUTION AND RECOVERY TANK EIGHT-YEAR

U.S. GUARANTEE

Your new Clarke Technology machine has polydur Solution and Recovery Tanks. Polydur is a rotationally molded, lowdensity linear polyethylene that won't crack or dent, and withstands most corrosives and temperature extremes. Clarke

Technology backs up your Polydur tanks with an eight-year guarantee. If a tank breaks or leaks under normal use within eight years of the date of purchase, it will be replaced free.

CLARKE TECHNOLOGY UNIBODY FRAME EIGHT-YEAR U.S. WARRANTY

Clarke Technology warranties the frame for a period of eight years against defects in materials and workmanship under normal use and service.

STATED WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED

Clarke Technology's liability under this warranty is limited to repair of the product and/or replacement of parts and is given to purchaser in lieu of all other remedies, including INCIDENTAL AND CONSEQUENTIAL DAMAGES.

THERE ARE NO EXPRESS WARRANTIES OTHER THAN THOSE SPECIFIED HEREIN. THERE ARE NO WARRANTIES WHICH

EXTEND BEYOND THE DESCRIPTION OF THE FACE HEREOF. NO WARRANTIES, INCLUDING BUT NOT LIMITED TO WARRANTY

OF MERCHANTABILITY, SHALL BE IMPLIED. A warranty registration card is provided with your Clarke Technology product.

Return the card to assist Clarke Technology in providing the performance you expect from your new floor machine.

If a difficulty develops with the product, you should: a) Contact the nearest authorized Clarke Technology repair location or contact the Clarke Technology Service Operations Department, 2100 Highway 265, Springdale, Arkansas 72764, for the nearest authorized Clarke Technology repair location. Only these locations are authorized to make repairs to the product under this warranty. (b) Return the product to the nearest Clarke Technology repair location. Transportation charges to and from the repair location must be prepaid by the purchaser. Clarke Technology will repair the product and/or replace any defective parts with out charge within a reasonable time after receipt of the product.

ALTO, 2100 Highway 265, Springdale, Arkansas 72764.

ALTO reserves the right to make changes or improvements to its machine without notice.

Always use genuine ALTO Parts for repair.

2100 Highway 265

Springdale, Arkansas, 72764

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