Clarke SCRUBTEC 751 S, SCRUBTEC 751 L, SCRUBTEC 743 L, SCRUBTEC 743 L C, SCRUBTEC 743 S User Manual

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Page 1

SCRUBTEC 743 SSCRUBTEC 743 S

SCRUBTEC 743 S

SCRUBTEC 743 SSCRUBTEC 743 S SCRUBTEC 743 LSCRUBTEC 743 L

SCRUBTEC 743 L

SCRUBTEC 743 LSCRUBTEC 743 L

Operator's

SCRUBTEC 751 SSCRUBTEC 751 S

SCRUBTEC 751 S

SCRUBTEC 751 SSCRUBTEC 751 S SCRUBTEC 751 LSCRUBTEC 751 L

SCRUBTEC 751 L

SCRUBTEC 751 LSCRUBTEC 751 L

Manual

SCRUBTEC 743 S CSCRUBTEC 743 S C

SCRUBTEC 743 S C

SCRUBTEC 743 S CSCRUBTEC 743 S C SCRUBTEC 743 L CSCRUBTEC 743 L C

SCRUBTEC 743 L C

SCRUBTEC 743 L CSCRUBTEC 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.

Form No. 70900A 9/05 CLARKE TECHNOLOGY Printed in the U.S.A.

Page 2

Table of Contents

Operator 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 Operate the Machine ............................................................................................................................ 20

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

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

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

SECTION II - Parts and Service Manual

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

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

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

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

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

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

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

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

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

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

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

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 ................................................................................. 1 9

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

English

Page -2- CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

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.

Page 3

OPERATOR SAFETY INSTRUCTIONS

WARNING 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: 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.

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.

DANGER: 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.

DANGER: 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.

DANGER: 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.

DANGER: 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-

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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

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

WARNING: Operating a machine without observing all labels and instructional information could result

WARNING: Wet floor surfaces can be slippery. Water solutions or cleaning materials used with this

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

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

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

injury to the operator or other bystanders. Alterations or modifications not authorized by the manufacturer voids any and all warranties and liabilities.

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.

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.

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.

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.

Manual. The use of other brushes may impair safety.

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

Page 5

Model SCRUBTEC 743 S Rotary

SCRUBTEC 743 L Rotary

Machine Power Supply 24 Volt D.C., (2) 12V 130AH Wet 24 Volt D.C., (2) 12V 130AH Wet

or (2) 12V 100AH Gel Deep Cycle Batteries or (2) 12V 100AH Gel Deep Cycle Batteries Pad or Brush 3-Lug Driver Style 3-Lug Driver Style Traverse Brush Assist 1/3 HP (0.25 kW) Traverse Forward Speed Not Applicable Variable to 200 ft./min (61 m/min) Traverse Reverse Speed Not Applicable Variable to 140 ft./min. (43 m/min) Battery Protection Low Voltage Cut-Off of Brush and Solution Motor Vacuum 3/4 HP(.569 kW) Acoustical High Efficient Tangential 3 stg Solution Tank 11 Gallons (42 liters) Solution Level Calibrated Level Indicator Recovery Tank 11 Gallons (42 liters) Recovery Full Indicator Electric Shut-Off Parabolic Squeegee Swing type with breakaway feature, No tool operation feature,

32" (81cm) hard width with 34" (86cm) flex blade width Squeegee Operation Reverse direction on floor and 3 - position manual lever style operation Cleaning Swath 17" (43.2 cm) Motor, Brush 3/4 HP (0,56 kW) 5.2:1 High Torque Gear Box Brush / Pad Size 17" (43.2 cm) Brush Speed 200 RPM Brush Pressure 0-90 lbs. (0-40.8 kg) Brush Solution Retention Fiber Bristles Drive Wheels (2) 8" x 2" (20 cm x 5 cm) Neoprene tread Caster 3½" X 1¼" (8.9 cm x 3.2 cm) On-Board Charger 24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50 Grade Cleaning 2% Length 48

/4" (123.8 cm) Width 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) Line of Sight (Operator Height = 5'8") Noise Level 73.5 dBA Vibration 0.1 m/s

454 lbs. (206 kg) 472 lbs. (214 kg)

7.5 feet (2.3 m)

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

Model SCRUBTEC 743 S C Cylindrical SCRUBTEC 743 L C Cylindrical

Machine Power Supply 24 Volt D.C., (2) 12V 130AH Wet 24 Volt D.C., (2) 12V 130AH Wet

or (2) 12V 100AH Gel Deep Cycle Batteries or (2) 12V 100AH Gel Deep Cycle Batteries Traverse Brush Assist 1/3 HP (0.25 kW) Traverse Forward Speed Not Applicable Variable to 200 ft./min (61 m/min) Traverse Reverse Speed Not Applicable Variable to 140 ft./min. (43 m/min) Battery Protection Low Voltage Cut-Off of Brushes and Solution Motor Vacuum 3/4 HP(.569 kW) Acoustical High Efficient Tangential 3 stg. Solution Tank 11 Gallons (42 liters) Solution Level Calibrated Level Indicator Recovery Tank 11 Gallons (42 liters) Recovery Full Indicator Electric Shut-Off Parabolic Squeegee Swing type with breakaway feature, No tool operation feature,

32" (81cm) hard width with 34" (86cm) flex blade width Squeegee Operation Reverse direction on floor and 3 - position manual lever style operation Cleaning Swath 17" (43.2 cm) Motor, Brush (2) 3/4 HP (0,56 kW) Brush 2 per Machine (2) 4" (10 cm) Brush Speed 1000 RPM Brush Pressure 70 lbs. (31.8 kg) Drive Wheels (2) 8" x 2" (20 cm x 5 cm) Neoprene tread Caster 3½" X 1¼" (8.9 cm x 3.2 cm) On-Board Charger 24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50 Grade Cleaning 2% Length 48 ¼" (122.6 cm) Width 20" (50.8 cm) Height 42" (106.7 cm) Weight w/batteries (130 AH) 342 lbs. (155.1 kg) 360 lbs. (163.3 kg) Shipping Weight w/Batteries (130AH) Line of Sight -Operator Height = 5'8"

462 lbs. (213 kg) 487 lbs. (221 kg)

7.5 feet (2.3 m) Noise Level 73.5 dBA Vibration 0.1 m/s

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

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

Page 6

Machine Specifications (S20 Rotary and L20 Rotary)

Model SCRUBTEC 751 S Rotary

Machine Power Supply 24 Volt D.C., (2) 12V 130AH Wet 24 Volt D.C., (2) 12V 130AH Wet

32" (81cm) hard width with 34" (86cm) flex blade width Squeegee Operation Reverse direction on floor and 3 - position manual lever style operation Cleaning Swath 20" (50.8 cm) Motor, Brush 3/4 HP (0,56 kW) 5.2:1 High Torque Gear Box Brush / Pad Size 20" (50.8 cm) Brush Speed 200 RPM Brush Pressure 0-90 lbs. (0-40.8 kg) Brush Solution Retention Fiber Bristles Drive Wheels (2) 8" x 2" (20 cm x 5 cm) Neoprene tread Caster 3½" X 1¼" (8.9 cm x 3.2 cm) On-Board Charger 24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50 Grade Cleaning 2% Length 48 3/4" (123.8 cm) Width 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) Line of Sight (Operator Height = 5'8") Noise Level 73.5 dBA Vibration 0.2 m/s Warranty Machine 3 Years, Polydur tanks 8 Years, Batteries 18 Months Pro-rated

454 lbs. (206 kg) 472 lbs. (214 kg)

7.5 feet (2.3 m)

SCRUBTEC 751 L Rotary

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

Page 7

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.

Figure #1

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 Page -7-

Page 8

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.

Figure #2

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).

Tie Down Point (both sides of machine)

Tie Down Point

Figure #2a

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

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

Page 9

SYMBOLS USED ON SCRUBTEC 743 and 751

Warning

Power

Solution Control

Brush Up/Down

Traverse Speed Control ("L Class" only)

Battery Meter

Vacuum/Squeegee Control

AC Power Indicator

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

Page 10

SYMBOLS USED ON SCRUBTEC 743 and 751

WARNING

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

71018A

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.

WARNING

MOVING PARTS. CONTACT CAN CAUSE SEVERE INJURY.

• Do not place hands or feet under

71017A

Page -10- CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

machine when in use.

71014A

WARNING

FALLING PARTS CAN CAUSE SEVERE INJURY.

• Make sure tank is secure before servicing.

Page 11

Machine Control Panel

Electrical Power Indicator

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.

(See Figure 3, Item "A")

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.

QP0

Figure 3

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.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -11-

Page 12

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.

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.

QP0

Figure 3

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)

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

Page 13

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

Figure 6

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -13-

Page 14

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.

Figure 7

Figure 8

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 9

Figure 10

Page -14- CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Page 15

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.

Figure 11

Figure 12

FRONT

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.

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -15-

Figure 13A

Figure 13B

Page 16

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.

Correct Level

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.

Figure 14

Figure 15

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

Page 17

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.

Figure 16

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.

Figure 17

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -17-

Page 18

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 mainte-

• nance 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

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).

harm.

Figure 18

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 counter-

clockwise 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.

Figure 20

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Page 19

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.

Figure 21

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.

Figure 22

Figure 23

Figure 24

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -19-

Page 20

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.

Figure 25

WARNING: Water solutions or cleaning materi-

als 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

F (49oC).

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.

Figure 26

To move the machine, follow this procedure:

1. Release the parking brake (if equipped with

machine).

Figure 27

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.

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Page 21

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).

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.

Figure 28

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 Page -21-

Page 22

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 recov-

ery 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).

Figure 29

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).

4. Make sure the recovery tank lid is on correctly (See Figure 30).

Page -22- CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751

Figure 30

Page 23

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).

Figure 31

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.

Figure 32

Figure 33

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.

Figure 34

CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -23-

Page 24

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.

Figure 35

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

Page 25

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.

Figure 36

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.

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

Page 26

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.

Figure 37

Figure 38

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.

REAR BLADE

0.06 (1.5 mm)

Figure 39

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Page 27

SCRUBTEC 743 and 751

Accessories

ACCESSORIES

Description Part No.

Clarke Care Kit 146 07A 29" Squeegee Assembly 188 20A 32" Squeegee Assembly 101 29A Poly Dur Protectant 504 78 A Hour Meter Kit 106 56 A Key Switch Kit 10490A Parking Brake Kit 104 9 1 A Vacuum Muffler Kit 104 92A Power Wand Kit 104 89 A Urethane Caster Assembly 612 90A Dual Direct Clutch Plate 300 34 A Center Lock Pad Retainer 5694 1A Squeegee Hose "S" Trap 304 82A

Rotary Disk Brushes and Pad Assemblies:

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

Pad Driver Asm. 104 05A 306 29A Polypropylene 52539A 30630A Nylon 52540A 30631A Lite Grit 525 43 A 306 32 A Clean Grit 5 2541A 30633A

Cylindrical Brushes

Size Description Part No.

4" Polypropylene 30231 A 4" Nylon 30232A 4" Clean Grit 302 33A 4" Super Grit 30234 A

29" Squeegee Blades

Description Part No.

Blade, Rear - Gum Rubber 3093 1A Blade, Rear - Nitrile Solid 309 38 A Blade, Front - Ribbed Urethane 30 951A Blade, Front - Notched Neoprene 309 30A

32" Squeegee Blades

Description Part No.

Blade, Rear - Gum Rubber 3006 7A Blade, Rear - Nitrile Solid 300 81 A Blade, Rear - Ribbed Orange 3 0085 A Blade, Front - Ribbed Natural 300 66A Blade, Front - Slit Grout 300 79 A Blade, Front - Ribbed Orange 300 83A

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

Page 28

HOW TO CORRECT PROBLEMS IN THE MACHINE

PROBLEM CAUSE ACTION

There is no solution flow.

The solution flow does not stop.

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

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 squeegee is up. The squeegee tilt is not correct.

The recovery tank is full. The screen filter is dirty. There is an obstruction or damage in the

squeegee or squeegee hose.

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.

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 batteries do not give the normal running time.

The vacuum motor is not running.

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.

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.

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.

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

Page 29

PROBLEM CAUSE ACTION

The cleaning is not even. 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 does not run. The machine loses power.

Key or switch is off. Batteries are disconnected.

Battery terminals are dirty. Batteries are discharged

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-

Page 30

NOTES

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

Page 31

SCRUBTEC 743 SSCRUBTEC 743 S

SCRUBTEC 743 S

SCRUBTEC 743 SSCRUBTEC 743 S SCRUBTEC 743 LSCRUBTEC 743 L

SCRUBTEC 743 L

SCRUBTEC 743 LSCRUBTEC 743 L SCRUBTEC 751 SSCRUBTEC 751 S

SCRUBTEC 751 S

SCRUBTEC 751 SSCRUBTEC 751 S SCRUBTEC 751 LSCRUBTEC 751 L

SCRUBTEC 751 L

SCRUBTEC 751 LSCRUBTEC 751 L SCRUBTEC 743 S CSCRUBTEC 743 S C

SCRUBTEC 743 S C

SCRUBTEC 743 S CSCRUBTEC 743 S C SCRUBTEC 743 L CSCRUBTEC 743 L C

SCRUBTEC 743 L C

SCRUBTEC 743 L CSCRUBTEC 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-

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CLARKE TECHNOLOGY

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SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Final Assembly 5/05

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CLARKE TECHNOLOGY

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SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Final Assembly Parts List 5/05

Ref. # Part No. Description Qty

1 Page 32 Recovery Tank Assembly 1 2 980651 Washer, Flat 5/16" 8 3 80212A Screw, M8 x 1.25 x 35mm Hex Head 4 4 Page 34 Solution Tank Assembly 1 5 Page 48 Rotary Disk Head Assembly Option 1 6 Page 46 Cyl. Head Asm. Option (L17 Cyl. model only) 1 7 Page 44 Frame Assembly 1 8 80197A Screw, M8 x 1.25 x 20mm Hex Head 4

9 980652 Washer, Lock 5/16" 4 10 Page 42 Squeegee Assembly 1 11 Page 40 Squeegee Lift Assembly 1 12 80179A Screw, M6 x 1 x 15mm Pan Head 6 13 Page 38 Control Housing Assembly 1 14 Page 36 Electrical Assembly 1 15 30334A Tether 1 16 52570A Clip, Tether 1 NI 40606A Battery, 130AH, 12V Wet Option 2 NI 40605A Battery, 130AH, 12V Dry Option 2 NI 40070A Battery, 100AH, 12V Gel Option 2 NI 41206A Battery Cable (Taper Style) 1 NI 41217A Battery Cable (Ring Style) (use w/gel batteries) 1 NI 61337A Battery Cable Adapter (use w/gel batteries) 2

NI = Not Illustrated

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

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CLARKE TECHNOLOGY

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SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Recovery Tank Assembly 5/05

18 19

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Recovery Tank Parts List 9/05

Ref. # Part No. Description Qty

1 80176A Screw, M5 x .8 x 12mm Pan Head 1 2 30207A Recovery Lid 1 3 30065A Lid Gasket 1 4 692409 Chain 1 5 80196A Nut, M5 x .8 Hex 1 6 10660A Float Switch Kit (includes 6A, 6B, 6C) 1 6A 40002A Float Switch (included in #6) 1 6B 56459B Strain Relief (included in #6) 1 6C 59877A Washer, Seal (included in #6) 1 7 30218A Recovery Tank 1 8 30227A Drain Housing 1 9 30226A Drain Plug 1 10 52560A O-Ring 1 11 30225A Drain Body 1 12 82100A Locknut, 1/2" Conduit 1 13 872102 Nylon Clip, 5/16 OD 2 14 962957 Screw, #10-16 x 1/2 2 15 52206A Chain 1 16 43402A Housing, Connector (included in 6A) 2 17 41809A Contact (included in 6A) 2 18 80193A Screw, M5 x .8 x 10mm Pan Head 4 19 832002 Drain Valve Clamp 1 20 35102A Drain Hose 1 21 61459A Latch Plate 1 22 980603 Washer, LK #10 Ext Tooth 2 23 80110A Hose Clamp 1 24 920296 Nut, 10-24 1 25 752020 Clamp 1 26 51060A Vacuum Hose 1 27 30482A Squeegee Hose 1 28 61451B Vacuum Screen 1 29 962666 Screw, 10-24 x 3/4 Pan Head 1 30 53179A Red Cable Tie 1 NI 71014A Label, Falling Parts 1

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

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

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Solution Tank & Front Cover Assembly 5/05

2 7

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Page 37

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Solution Tank & Front Cover Parts List 8/05

Ref. # Part No. Description Qty

1 80199A Nut, M6 x 1 Hex Nylock 2 2 980614 Lock Washer, 1/4" Ext. Tooth 10 3 87026A Flat Washer, 1/4" 4 4 40724A Vacuum Motor 1 5 61297B Front Motor Mount 1 6 80179A Screw, M6 x 1 x 15mm, Pan Head 8 7 80180A Screw, M6 x 1 x 30mm, Pan Head 2 8 61298B Rear Motor Mount 1 9 52551A Battery Strap 1 12 52548A Screw Tab 4 13 30608A Front Cover, (Scrubtec 743) 1

13 30221A Front Cover, (Scrubtec 751) 1

14 80202A Screw, M5 x .8 x 15mm, Pan Head 6 15 87036A Flat Washer, #10 4 16 80196A Nut, M5 x .8 Hex Nylock 4 17 80209A Shoulder Bolt, M5 x 6 x 8mm 2 18 61457A Left Front Cover Bracket 1 19 61456A Right Front Cover Bracket 1 20 30286A Tank, Solution (Scrubtec 751 S) 1

20 30702A Tank, Solution (Scrubtec 751 L) 1 20 30703A Tank, Solution (Scrubtec 743 L) 1 20 30704A Tank, Solution (Scrubtec 743 SC) 1 20 30705A Tank, Solution (Scrubtec 743 LC) 1 20 30706A Tank, Solution (Scrubtec 743 S) 1

21 50248A Hose Clamp 6 22 53607A Elbow, 1/4 NPT x 3/8 1 23 30172A Hose 2 24 51204A Valve, Solution 1 26 820207 Adapter 1 27 30453A Hose 1 28 59614A Battery Drain Valve 1 32 51518A Bushing 2 33 51526A Hosebarb, 3.8 x 90° 2 34 55189A Hosebarb, 1/2 x 90° 2 35 31242A Bushing 2 36 30239A Level, Drain Hose 1 37 30222A Solution Lid 1 38 61280A Drain Hose Hanger 1 39 980603 Lock Washer, #10 Ext. Tooth 4 40 52552A Battery Strap, w/Buckle 1 41 41809A Contact, Connector 2 42 43401A Housing, Connector 2 43 80210A Screw, M6 x 1 x 10mm, Flat Head 2 44 80176A Screw, M5 x .8 x 12mm, Pan Head 2 45 61345A Hinge Bracket 1 46 40817A Brush Mechanism 2 47 53562A Filter Bowl 1 N I 70666B Label, ALTO (Front Cover) 1

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Electrical Assembly 5/05

41 40

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Page 39

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

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Electrical Parts List 9/05

Ref. # Part No. Description Qty Qty

1 80179A Screw, M6 x 1 x 15mm, Pan Head 6 6 2 980614 Washer, Lock 1/4" Ext. Tooth 12 12 3 30097A Insulator 1 1 4 40635A Squeegee Switch 1 1 5 980607 Washer, Lock #6 Ext. Tooth 2 2 6 962980 Screw, 6-32 x 1, Pan Head 2 2 7 30287A Strain Relief 1 1 8 52548A Screw Tab 2 2 9 30175A Squeegee Cam 1 1 10 40614A Battery Charger, 115V, 50/60 Hz 1 1

40615A Battery Charger, 230V, 50/60 Hz 1 1

11 40611A Cord, Power Supply 115V 1 1

40609A Cord, Power Supply 230V, European 1 1 12 980692 Washer, Flat 5/16" SS 2 2 13 438360 Squeegee Lift Spring 1 1 14 80178A Shoulder Bolt, M6 x 8 x30mm 1 1 15 80202A Screw, M5 x .8 x 15mm, Pan Head 1 1 16 60975A Squeegee Cable 1 1 17 85389A Screw, 3/8-16 x 5/8 1 1 18 980666 Washer, 3/8" Ext. Tooth 1 1 19 60976A Squeegee Lever 1 1 20 52557A Squeegee Knob 1 1 21 40631A Traverse Harness - 1 22 80186A Eyebolt, #10-24 1 1 23 40592A Traverse Controller - 1 24 80221A Screw, M4 x .7 x 20mm, Pan Head 3 3 25 40630A Main Harness, Traverse - 1

40629A Main Harness, Non-Traverse 1 26 193951 Grommet, 8.5" 1 1 27 80205A Screw, M5 x .8 x 20mm, Pan Head 1 1 28 80204A Nut, M3 x .5, Nylock 2 2 29 40169A Solenoid, Vacuum 1 1 30 80208A Screw, M6 x 1 x 10mm, Pan Head 6 6 31 41811A Contactor, Main 1 1 32 40612A Red Battery Cable 1 1 33 80222A Screw, M4 x .7 x 10mm, Pan Head 2 2 34 40633A Relay, DPDT, 115V 1 1

40634A Relay, DPDT, 230V 1 1 35 41810A Contactor, Brush 1 1 36 40613A Black Battery Cable 1 1 37 46106A Rectifier 1 1 38 40626A Terminal Block 1 1 39 80206A Screw, M3 x .5 x 20mm, Pan Head 2 2 40 980603 Washer, Lock #10 Ext. Tooth 2 2 41 80169A Nut, M5 x .8 Hex 2 2 42 80199A Nut, M6 x 1, Nylock 1 1 43 60265A Nut Plate 1 1 44 60977A Squeegee Lift Mount 1 1 45 61084A Electrical Panel, Traverse - 1

61332A Electrical Panel, Non-Traverse 1 46 52562A Strain Relief Bushing 1 1 47 80196A Nut, M5 x .8 Nylock 1 1 48 912216 Fuse, 15A 1 1 49 43006A Fuse Holder 1 1 50 77094A Label, Ground 1 1 51 71015A Label, Gases & Chemicals 1 1

S17/20 L17/20

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CLARKE TECHNOLOGY

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SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Control Housing Assembly 5/05

20B

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Control Housing Parts List 5/05

Qty Qty Qty

Ref. # Part No. Description S17/20 L17/20 L17 Cyl

1 962957 Screw, 10-16 x 1/2" 6 6 6 3 70352A Membrane Switch 1 1 1 4 60979 A Control Panel 1 1 1 5 52555A Lever Gasket 1 1 1 6 60978A Wear Plate 1 1 1 7 870 36 A Washer, Flat #10 3 3 3 8 80196A Nut, M5 x .8, Nylock 3 3 3 9 40597 A Panel Circuit Board 1 1 1 10 962330 Screw, 6-32 x 3/8" Pan Head 4 4 4 11 30214A Switch Lever 2 2 2 1 2 5096 1A Spring, Switch 4 4 4 1 3 80 19 2 A Screw, M5 x .8 x 16mm, Oval Head 4 4 4 1 4 30 213A Switch Housing 2 2 2 15 980608 Washer, Flat #6 4 4 4 16 40126A Switch Assembly 2 2 2 1 7 80 191A Screw, M3.5 x 6 x 10mm, Pan Head 4 4 4 18 52556A Reverse Switch - 1 1 19 30220A Control Handle, Traverse - 1 1

30228A Control Handle, Non-Traverse 1 - 20 47380A Key Switch - 1 1 20B 5541 3A Key, Spare - 1 1 2 1 80230 A Washer, Nylon 1 1 2 2 8 7052A Washer, Key Switch - - 1 2 3 4142 2A Circuit Breaker, 25A 1 2 3 2 4 4143 3A Circuit Breaker, 40A 1 1 -

414 22A Circuit Breaker, 25A - - 1 2 5 414 23A Circuit Breaker, 5A 2 2 2 2 6 80229 A Arrow Clip, Nylon 1 1 27 40135 A Potentiometer Harness - 1 1 28 980666 Washer, Lock 3/8" - 1 1 29 60 259A Potentiometer Retainer - 1 1 30 50962A Control Knob - 1 1 31 962262 Screw, Set 8-32 x 1/2" (included in #30) - 1 1 3 2 70080 A Plate, Warning 1 1 1 33 83010 A Rivet, Pop 2 2 2

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Squeegee Lift Assembly 5/05

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Page 43

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Squeegee Lift Parts List 5/05

Ref. # Part No. Description Qty

1 80196A Nut, M5 x .8, Nylock 1 2 87036A Washer, Flat #10 1 3 61305A Tube Bracket 1 4 80199A Nut, M6 x 1, Nylock 2 5 80198A Nut, M8 x 1.25, Nylock 2 6 980652 Washer, Lock 5/16" 1 7 80195A Screw, M6 x 1 x 20mm, Hex Head 4 8 87026A Washer, Flat 1/4" 2 9 61292A Pin Bracket 1 10 61296A Squeegee Arm 1 11 980651 Washer, Flat 5/16" 2 12 80194A Screw, M8 x 1.25 x 30mm, Hex Head 1 13 80101A Screw, 1/4-20 x 3 1/4" 1 14 61461A Squeegee Swivel Spacer 1 15 60256A Pivot Bracket 1 16 80197A Screw, M8 x 1.25 x 20mm, Hex Head 1 17 81104A Nut, 1/4-20 Nylock 1

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

32" Squeegee Assembly 5/05

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

32" Squeegee Parts List 5/05

Ref. # Part No. Description Qty

1 80252A Screw, ¼-20 x 1 Hex SS 4 2 980657 Washer, ¼ Lock 4 3 60243A Bracket, Squeegee Wheel 2 4 30049B Wheel, Squeegee 4 5 81104A Nut, ¼-20 2 6 60254A Bolt, Shoulder 5/16x 2¼ 2 7 50958A Ring, 3/8 ID Snap 2 8 30048A Wheel, Guide, 4 Inch Diameter 2

9 60234A Channel, Squeegee Weldment 32” 1 10 50835A Latch, Squeegee Clamp 1 11 930086 Rivet, 3/16 x .450 Aluminum 2 12 60232A Strap, Clamp, Squeegee Retainer 32 1 13 30067A Blade, Rear, Gum Rubber, 32” 1 14 30047A Spacer, Squeegee 32 1 15 30066A Blade, Front Ribbed 32” 1 16 80011A Screw, 3/8-16 x 3 2 17 81301A Nut, 3/8-16 Jam SS 2 18 34260B Gasket 1 19 25201A Knob 2 20 60358A Shim, Squeegee Wheel 2 21 61370A Weight, Squeegee 4 22 80280A Nut, Squeegee Backup 2

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Frame Assembly 5/05

23B

12 31

23A

27A

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27B

Page 47

CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Frame Parts List 5/05

Qty Qty Qty Qty Qty

Ref. # Part No. Description S 17 L17 L17 Cyl S20 L2 0

1 80199A Nut, M6 x 1, Nylock 5 6 6 5 6 2 87026A Washer, Flat 1/4" SS 7 17 17 7 17 3 80204A Nut, M3 x .5 Nylock 2 2 2 2 2 4 80225A Spring, Front (1.25" long) - - 1 - -

54179A Spring, Front (2.25" long) 1 1 - 1 1 5 80196A Nut, M5 x .8 Nylock 1 1 1 1 1 7 61077A Rear Actuator Bracket 1 1 1 1 1 8 80164A Shoulder Bolt, M5 x 6 x 20mm 1 1 1 1 1 9 61075A Actuator 1 1 1 1 1 10 80165A Shoulder Bolt, M6 x 8 x 12mm 2 2 2 2 2 11 980651 Washer, Flat 5/16" 2 2 2 2 2 12 980692 Washer, Flat 5/16" SS 18 18 18 1 8 18 13 61592A Lift Bracket 1 1 1 1 1 14 80173A Bolt, M6 x 1 x 65mm Hex Head 1 1 1 1 1 15 80195A Screw, M6 x 1 x 20mm Hex Head 2 3 3 2 3 16 980614 Washer, Lock 1/4" Ext Tooth - 2 2 - 2 17 61302A Static Strap - 1 1 - 1 18 47422B Switch, Wisker 1 1 1 1 1 19 80203A Screw, M3- x 5 x 30mm Pan Head 2 2 2 2 2 20 59610A Solution Valve 1 1 1 1 1 21 51526A Hosebarb, 90°, 3/8 x 3/8 1 1 - - -

52635A Hosebarb, 90°, 3/8 x 1/2 - - 1 - 22 30311A Hose 1 1 - 1 1 23A 61455A Axle, Non-Traverse 1 - - 1 23B 61076A Transaxle - 1 1 - 1 24 80197A Screw, M8 x 1.25 x 20mm Hex Head 12 10 1 0 12 1 0 25 57423A Snap Ring 2 - - 2 26 87616A Washer, Nylon 4 - - 4 27A 61436A Wheel, Non-Traverse 2 - - 2 27B 61437A Wheel, Traverse - 2 2 - 2 28 980205 Washer, 5/16" Fender 2 - - 2 29 60289A Transaxle Clamp - 2 2 - 2 30 81104A Nut, 1/4-20 ESNA SS - 8 8 8 8 31 80198A Nut, M8 x 1.25 Nylock 8 8 8 8 8 32 61079A Head Bracket 1 1 1 1 1 33 61460A Caster Assembly 1 1 1 1 1 34 61073A Main Frame 1 1 1 1 1 35 80223A Nut, M10 x 1.5 Nylock 1 1 1 1 1 36 980645 Washer, Flat 3/8" 1 1 1 1 1 37 80226A Spring, Rear (2" long) 1 1 1 1 1 38 980652 Washer, Lock 5/16" 2 - - 2 -

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CLARKE TECHNOLOGY

SCRUBTEC 743 S C and 743 L CSCRUBTEC 743 S C and 743 L C

SCRUBTEC 743 S C and 743 L C

SCRUBTEC 743 S C and 743 L CSCRUBTEC 743 S C and 743 L C

Cylindrical Head Assembly 5/05

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

CLARKE TECHNOLOGY

SCRUBTEC 743 S C and 743 L CSCRUBTEC 743 S C and 743 L C

SCRUBTEC 743 S C and 743 L C

SCRUBTEC 743 S C and 743 L CSCRUBTEC 743 S C and 743 L C

Cylindrical Head Parts List 9/05

Ref. # Part No. Description Qty

1 80198A Nut, M8 x 1.25 Nylock 3 2 980652 Washer, 5/16" Lock 3 3 980692 Washer, 5/16" Flat SS 13 4 80165A Shoulder Bolt, M6 x 8 x 12mm 2 5 980651 Washer, 5/16" Flat 2 6 80199A Nut, M6 x 1 Nylock 8 7 87026A Washer, 1/4" Flat SS 8 8 80196A Nut, M5 x .8 Nylock 2 9 61306A Switch Bracket 1 10 80176A Screw, M5 x . 8 x 12mm Pan Hd 17 11 61080A Head Bracket 1 12 915082 Key, 3/16" Sq. X 3/4" 2 13 50436A Drive Pin 4 14 30230A Debris Tray 1 15 61286A Brush Shaft 2 16 ref. See accessories page, cyl. brush 2 17 61398A Brush Spacer 2 18 61449A Door, L.H. Brush 1 19 52477A Clamping Knob 2 20 80180A Screw, M6 x 1 x 30mm Pan Hd 8 21 30545A Skirt, Brush Door 2 22 30209A Bumper, Brush Door 2 23 30208A Bumper, Belt Cover 2 24 30544A Skirt, Belt Cover 2 25 53399A Flange Bearing 4 26 80179A Screw, M6 x 1 x 15mm Pan Hd 4 27 61282A Cover L.H. Belt 1 28 80214A Screw, M6 x 1 x 12 Hex Head 2 29 980657 Washer, 1/4" Lock 10 30 61396A Motor Pulley 2 31 21058A Brush Housing 1 32 57994A Screw, M6 x 20mm, Hex Head 4 33 61397A Brush Pulley 2 34 52818A Drive Belt 2 35 80178A Shoulder Bolt, M6 x 8 x 30mm 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 2 39 61448A Roller Bracket 2 40 80208A Screw, M6 x 1 x 10mm Pan Hd 4 41 30049B Wheel, 1 x 2 x 5/16 4 42 30235A Bumper, Housing 1 43 61287A Bumper Retainer 1 45 61285A Motor Cover 1 46 61283A Door, R.H. Brush 1 47 61450A Cover, R.H. Belt 1 48

 71017A Label, Moving Parts 2

49 782002 Clamp, Solution Tube 1 50 50248A Clamp, 3/8 Hose 2 51 10387A Solution Tube Assembly 1 52 61430A Motor 2 53 41602A Housing, Connector 4 54 41601A Contact, Connector 4 55 930113 Rivet, 1/8" 3 56 61288A Tray Rail 1 57 80158A Key, 1/8" Sq. x 1/2" 2 58 53182A Cap, Tube 2 59 80249A Screw, M5-.8 x 12 mm HH 2 60 962262 Screw, Set 8-32 x 1/4 2

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CLARKE TECHNOLOGY

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

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

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

Rotary Disk Head Assembly 5/05

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Page 51

CLARKE TECHNOLOGY

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

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

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

Rotary Disk Head Parts List 5/05

Ref. # Part No. Description Qt y Qty Qty Qty

S17 L17 S20 L20

1 41602A Housing, Connector 1 1 1 1 2 41601A Contact, Connector 1 1 1 1 3 40591A Brush Motor 1 1 1 1 4 20014A Motor Shim 1 1 1 1 5 87026A Washer, Flat 1/4" 2 2 2 2 6 80199A Nut, M6 x 1 Nylock 2 2 2 2 7 80165A Shoulder Bolt, M6 x 8 x 12mm 2 2 2 2 8 980651 Washer, Flat 5/16" 2 2 2 2 9 80196A Nut, M5 x .8 Nylock 3 3 3 3 10 61306A Switch Bracket 1 1 1 1 11 980692 Washer, Flat 5/16" 2 2 2 2 12 80249A Screw, M5 x .8 x 12mm Hex Head 2 2 2 2 13 61078A Motor Mount Bracket 1 1 1 1

61593A Motor Mount Bracket - - 1 1 14 98451A Washer, Lock 7/16" 4 4 4 4 15 80184A Bolt, M10 x 1.5 x 25mm Hex Head 4 4 4 4 16 20308A Motor Adaptor 1 1 1 1 17 980679 Washer, Flat 3/4" 1 1 1 1 18 980210 Washer, Impeller 1 1 1 1 19 980652 Washer, Lock 5/16" 1 1 1 1 20 80197A Screw, M8 x 1.25 x 20mm Hex Head 1 1 1 1 21 30216A Upper Brush Housing 1 1 1 1

30607A Upper Brush Housing - - 1 1 22 30217A Lower Brush Housing 1 1 1 1

30599A Lower Brush Housing - - 1 1 23 70667A Label, 17 1 1 1 1

70897A Label, 20 - - 1 1 24 66550A Pin Assembly 1 1 1 1 25 80224A Shoulder Bolt, M5 x 6 x 16mm 2 2 2 2 26 980643 Washer, Flat 2 2 2 2 27 920278 Nut, 1/2-20 SS Hex 1 1 1 1 28 61289A Motor Cover Rod 1 1 1 1 29 52515A Bearing Sleeve 1 1 1 1 30 87036A Washer, Flat #10 1 1 1 1 31 80227A Extension Spring 1 1 1 1 32 980645 Washer, Flat 3/8" 2 - - 33 80202A Screw, M5 x .8 x 15mm, Pan Head 1 1 1 1 34 80169A Nut, M5 x .8 Hex 2 2 2 2 35 77091A Label, Moving Parts 1 1 1 1

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CLARKE TECHNOLOGY

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

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

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

Gearbox Assembly and Parts List 5/05

Ref # Part No. Description Qty

1 5784 6A Ring, Snap 1 2 507641 Seal, Oil, Small 1 3 52050 A Cap End 1 4 56668A O-Ring 1 5 51176A Bearing, Large 1 7 902605 Bearing, Small 1 9 5814 4A Seal, Oil Large 1 1 0 N I Darina EP2 Grease 4 oz. 1 1 528 55A Complete Gearbox Asm. 1

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

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CLARKE TECHNOLOGY

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

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

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

Brush Motor Assembly and Parts List 5/05

Seam Location

3 14

9 10

Item Part No. Description Qty

1 56478A Stator Frame Assembly (w/Magnets & Clips) 1 2 50142A Armature Assembly (w. B.E. & F.E. Bearings) 1 3 902654 Bearings B.E. 1 4 902550 Bearing F.E. 1 5 Commutator Bracket Assembly 1

6 50520A Commutator Bracket 1 7 56480A Strain Relief 2 8 962546 Brush Board Screw 2 9 50517A Brush Board Assembly (w/ Springs & Brushes) 1 10 448396 Brush Spring 4 11 40826A Brush Assembly 4 12 55657A Lead Assembly 1 13 55656A Lead Assembly 1 14 Helical Washer 1

15 50515A Thru Bolt 2 16 80501A Shaft Key 1 17 54238A B.E. Bracket Assembly (Gear Box) 1

(w/Brush BRD Assembly Leads)

* NOTE: Parts not available at this time.

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

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CLARKE TECHNOLOGY

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

SCRUBTEC 743 and 751

SCRUBTEC 743 and 751SCRUBTEC 743 and 751

Transaxle Drawing 5/05

BLK

RED

4, 5

Item Part No. Description Qty

1 10135A Wheel Flange Kit 2 2 51056A Transaxle Mounting Sleeve 2 3 40593A Motor Brush 2 4 40594A Motor Urethane Sleeve 1 5 40595A Motor 1 6 40596A Transaxle Only 1

Specifications:

- Motor: 24VDC, Permanent Magnet, Tenv

- Transaxle: 30:1 Ratio

- Gear Oil: Mobile SHC634 12 oz.

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

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YEL

RED

CLARKE TECHNOLOGY

SCRUBTEC 743 S, 751 S and 743 S CSCRUBTEC 743 S, 751 S and 743 S C

SCRUBTEC 743 S, 751 S and 743 S C

SCRUBTEC 743 S, 751 S and 743 S CSCRUBTEC 743 S, 751 S and 743 S C

Connection Diagram 5/05

BLK RED

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CLARKE TECHNOLOGY

SCRUBTEC 743 S, 751 S and 743 S CSCRUBTEC 743 S, 751 S and 743 S C

SCRUBTEC 743 S, 751 S and 743 S C

SCRUBTEC 743 S, 751 S and 743 S CSCRUBTEC 743 S, 751 S and 743 S C

Electrical Schematic 5/05

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RED

CLARKE TECHNOLOGY

SCRUBTEC 743 L, 751 L and 743 L CSCRUBTEC 743 L, 751 L and 743 L C

SCRUBTEC 743 L, 751 L and 743 L C

SCRUBTEC 743 L, 751 L and 743 L CSCRUBTEC 743 L, 751 L and 743 L C

Connection Diagram 5/05

BLK RED

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

Page 58

CLARKE TECHNOLOGY

SCRUBTEC 743 L, 751 L and 743 L CSCRUBTEC 743 L, 751 L and 743 L C

SCRUBTEC 743 L, 751 L and 743 L C

SCRUBTEC 743 L, 751 L and 743 L CSCRUBTEC 743 L, 751 L and 743 L C

Electrical Schematic 5/05

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

Page 59

NOTES

Page 60

CORPO

HEADQUARTERSHEADQUARTERS

HEADQUARTERS

HEADQUARTERSHEADQUARTERS

DENMARKDENMARK

DENMARK

DENMARKDENMARK

Nilfisk-Advance Group Sognevej 25 2605 Brøndby Denmark Tel: (+45) 43 23 81 00

SUBSIDIARIES SUBSIDIARIES

SUBSIDIARIES

SUBSIDIARIES SUBSIDIARIES

AUSTRALIAAUSTRALIA

AUSTRALIA

AUSTRALIAAUSTRALIA

ALTO 48 Egerton St. PO Box 6046 Silverwater NSW 2128 Australia Tel: (+61) 2 8748 5966 Fax: (+61) 2 8748 5960

AUSTRIAAUSTRIA

AUSTRIA

AUSTRIAAUSTRIA

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: verkauf@-alto.at www.-alto.at

BRASILBRASIL

BRASIL

BRASILBRASIL

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: wap@wapdobrasil.com.br

CANADACANADA

CANADA

CANADACANADA

ALTO Canada 24 Constellation Road Rexdale Ontario M9W 1K1 Canada Tel: (+1) 416 675 5830 Fax: (+1) 416 675 6989

CZECH REPUBLICCZECH REPUBLIC

CZECH REPUBLIC

CZECH REPUBLICCZECH REPUBLIC

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: wap_p@mbox.vol.cz

DENMARKDENMARK

DENMARK

DENMARKDENMARK

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: salg@-alto.dk E-mail:service@-alto.dk 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: scanio.technology@alto.dk www.-alto.com

FRANCEFRANCE

FRANCE

FRANCEFRANCE

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

GERMANYGERMANY

GERMANY

GERMANYGERMANY

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: info@-alto.de Info-export@-alto.de www.-alto.de

Page 61

GREAT BRITAINGREAT BRITAIN

GREAT BRITAIN

GREAT BRITAINGREAT BRITAIN

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: sales@-alto.co.uk www.-alto.co.uk

HUNGARYHUNGARY

HUNGARY

HUNGARYHUNGARY

ALTO Hungary Kft Csengery ut. 119 8800 Nagkanizsa Hungary Tel: (+36) 93 509 701 Fax: (+36) 93 509 704

MALAYSIAMALAYSIA

MALAYSIA

MALAYSIAMALAYSIA

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: Densin@tm.net.my

NETHERLANDSNETHERLANDS

NETHERLANDS

NETHERLANDSNETHERLANDS

ALTO Nederland B.V. Camerastraat 9 1322 BB Almere The Netherlands Tel: (+31) 36 5460 756 Fax: (+31) 36 5460 700 E-mail: info@alto-nl.com

Postbox 60112 1320 AC Almere The Netherlands

NORWAYNORWAY

NORWAY

NORWAYNORWAY

ALTO Norge AS Bjørnerudveien 24 1266 Oslo Norway Tel: (+47) 22 75 17 70 Fax: (+47) 22 75 17 71 E-mail: info@-alto.no www.-alto.no

SINGAPORESINGAPORE

SINGAPORE

SINGAPORESINGAPORE

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: densin@singnet.com.sg

SPAINSPAIN

SPAIN

SPAINSPAIN

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: info@-alto.es www.-alto.com

SWEDENSWEDEN

SWEDEN

SWEDENSWEDEN

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: info@-alto.se www.-alto.se

USAUSA

USA

USAUSA

ALTO U.S. Inc. 2100 Highway 265 Springdale Arkansas 72764 USA Tel: (+1) 479 750 1000 Fax: (+1) 479 756 0719 E-mail: info@alto-us.com

ALTO U.S. Inc. 1100 Haskings Road Bowling Green Ohio 43402 USA Tel: (+1) 419 352 7511 Fax: (+1) 419 353 7187 E-Mail: info@alto-un.com

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: info@-advance.us www.-alto.com

Page 62

CLARKE TECHNOLOGY LIMITED U.S. W ARRANTY

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.

BA TTERY 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: POL YDUR® AUTOMA TIC SCRUBBER SOLUTION AND RECOVERY T ANK 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. W ARRANTY

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

ST ATED W ARRANTIES 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 INCIDENT AL AND CONSEQUENTIAL DAMAGES.

THERE ARE NO EXPRESS W ARRANTIES OTHER THAN THOSE SPECIFIED HEREIN. THERE ARE NO W ARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION OF THE FACE HEREOF . NO WARRANTIES, INCLUDING BUT NOT LIMITED TO W ARRANTY 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.

ALT O reserves the right to make changes or improvement s to its machine without notice.

Always use genuine ALTO Parts for repair.

2100 Highway 265

Springdale, Arkansas, 72764

Clarke SCRUBTEC 751 S, SCRUBTEC 751 L, SCRUBTEC 743 L, SCRUBTEC 743 L C, SCRUBTEC 743 S User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual