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Operator's
Manual
SCRUBTEC 743 S
SCRUBTEC 743 L
SCRUBTEC 751 S
SCRUBTEC 751 L
SCRUBTEC 743 S C
SCRUBTEC 743 L C
U.S. Patent No. 6,105,192; No. 6,557,207; No. 6,760,947
READ THIS BOOK
CAUTION: Read the Operator's Manual before using the appliance.
This book has important information for the use and safe operation of this machine. Failure to read this book prior to operating or attempting any service or maintenance procedure to your ALTO machine could result in injury to you or to other personnel; damage to the machine or to other property could occur as well. You must have training in the operation of this machine before using it. If operator(s) cannot read this manual, have it explained fully before attempting to operate this machine.
All directions given in this book are as seen from the operator’s position at the rear of the machine.
For new books write to: ALTO, 2100 Highway 265, Springdale, Arkansas 72764.
CLARKE TECHNOLOGY Printed in the U.S.A.
Form No. 70900A 9/05
Table of Contents
O perator Safety Instructions ............................................................................................................................ 3
Machine Introduction ........................................................................................................................................ 4
Machine Specifications .................................................................................................................................... 5
Procedures for Transporting Machine ............................................................................................................. 7
Symbols Used on Machine .............................................................................................................................. 9
Machine Control Panel ..................................................................................................................................... 11
Machine Controls and Features ...................................................................................................................... 13
How to Prepare the Machine for Operation ...................................................................................................... 14
How to Install the Batteries ................................................................................................................ 14
Battery Maintenance ........................................................................................................................... 16
How to Charge the Batteries ............................................................................................................. 17
How to Install a Rotary Brush or Pad Driver ...................................................................................... 18
How to Remove a Rotary Brush or Pad Driver .................................................................................. 19
How to Change or Rotate Cylindrical Brushes ................................................................................. 19
How to Operate the Machine ............................................................................................................................ 20
How to Operate the Squeegee .......................................................................................................... 20
Filling the Solution Tank .................................................................................................................... 20
Operating the Machine ....................................................................................................................... 20
How to Clean a Dirty Floor ................................................................................................................. 21
Maintenance ..................................................................................................................................................... 22
Procedures Before Work is Begun .................................................................................................... 22
Procedures to Perform at the End of Work ........................................................................................ 23
Procedures to Perform Every Week ................................................................................................... 25
Maintenance for the Squeegee .......................................................................................................... 26
How to Adjust the Squeegee ............................................................................................................. 26
Accessories ...................................................................................................................................................... 27
How to Correct Problems in the Machine ........................................................................................................ 28
SECTION II - Parts and Service Manual
Final Assembly ................................................................................................................................................. 30
Parts List ............................................................................................................................................ 31
Recovery Tank Assembly ................................................................................................................................. 32
Parts List ............................................................................................................................................ 33
Solution Tank Assembly .................................................................................................................................. 34
Parts List ............................................................................................................................................ 35
Electrical Assembly .......................................................................................................................................... 36
Parts List ............................................................................................................................................ 37
Control Housing Assembly .............................................................................................................................. 38
Parts List ............................................................................................................................................ 39
Squeegee Lift Assembly .................................................................................................................................. 40
Parts List ............................................................................................................................................ 41
Squeegee Assembly ........................................................................................................................................ 42
Parts List ............................................................................................................................................ 43
Frame Assembly .............................................................................................................................................. 44
Parts List ............................................................................................................................................ 45
Cylindrical Brush Head Assembly ................................................................................................................... 46
Parts List ............................................................................................................................................ 47
Rotary Disk Head Assembly ............................................................................................................................ 48
Parts List ............................................................................................................................................ 49
Gearbox Assembly and Parts List ................................................................................................................... 50
Brush Motor Assembly and Parts List ............................................................................................................. 51
Transaxle Repair Parts .................................................................................................................................... 52
SCRUBTEC 743 S, 751 S, 743 S C Connection Diagram .............................................................................. 53
SCRUBTEC 743 S, 751 S, 743 S C Electrical Schematic ............................................................................... 54
SCRUBTEC 743 L, 751 L, 751 L C Connection Diagram ............................................................................... 55
SCRUBTEC 743 L, 751 L, 751 L C Electrical Schematic ................................................................................ 56
Page -2-
English
Correct Disposal of This Product (Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries with separate collection systems)
This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes at the end of its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources.
Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take this item for environmentally safe recycling.
Business users should contact their supplier and check the terms and conditions of the purchase contract. This product should not be mixed with other commercial wastes for disposal.
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
WARNING
OPERATOR SAFETY INSTRUCTIONS
AVERTISSEMENT ADVERTENCIA
DANGER: Failure to read and observe all DANGER statements could result in severe bodily injury or death. Read and observe all DANGER statements found in the Operator's Manual and on the machine.
WARNING: Failure to read and observe all WARNING statements could result in injury to you or to other personnel; property damage could occur as well. Read and observe all WARNING statements found in the Operator's Manual and on the machine.
CAUTION: Failure to read and observe all CAUTION statements could result in damage to the machine or to other property. Read and observe all
CAUTION statements found in the Operator's Manual and on the machine.
DANGER:
DANGER:
DANGER:
DANGER:
DANGER:
DANGER:
Failure to read the Operator's Manual prior to operating or attempting any service or maintenance procedure to your ALTO machine could result in injury to you or to other personnel; damage to the machine or to other property could occur as well.
You must have training in the operation of this machine before using it. If you or your operator(s) cannot read this manual, have it explained fully before attempting to operate this machine.
Operating a machine that is not completely or fully assembled could result in injury or property damage. Do not operate this machine unless it is completely assembled. Inspect the machine carefully before operation.
Machines can cause an explosion when operated near flammable materials and vapors. Do not use this machine with or near fuels, grain dust, solvents, thinners, or other flammable materials. This machine is not suitable for picking up hazardous dust. Use only commercially available floor cleaning chemicals intended for machine application.
Lead acid batteries generate gases which can cause an explosion. Keep sparks and flames away from batteries. Do not smoke around the machine. Charge the batteries only in an area with good ventilation. Make sure that the AC charger plug is unplugged from the wall receptacle and stowed before operating the machine.
Working with batteries can be dangerous! Always wear eye protection and protective clothing when working near batteries. Remove all jewelry. Do not put tools or other metal objects across the battery terminals, or on the tops of the batteries.
Using a charger with a damaged power cord could result in an electrocution. Do not use the charger if the power cord is damaged.
WARNING: Operating this machine from anywhere other than the back of the machine could result in injury or damage. Operate this machine only from the rear.
WARNING: This machine is heavy. Get assistance before attempting to transport or move it. Use two able persons to move the machine on a ramp or incline. Always move slowly. Do not turn the machine on a ramp. Do not use on surfaces having a gradient exceeding that marked on the appliance. Read the "Procedures For Transporting" in this manual before transporting as machine might topple over if not secured.
WARNING: Machines can topple over and cause injury or damage if guided over the edges of stairs or loading docks. Stop and leave this machine only on a level surface. When you stop the machine, put all switches into their "OFF" position. On L models turn the key switch
"OFF" and remove the key.
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -3-
WARNING: Maintenance and repairs performed by unauthorized personnel could result in damage or injury. Maintenance and repairs must be performed by authorized personnel only.
WARNING: Any alterations or modifications to this machine could result in damage to the machine or injury to the operator or other bystanders. Alterations or modifications not authorized by the manufacturer voids any and all warranties and liabilities.
WARNING: Electrical components to this machine can "short-out" if exposed to water or moisture.
Keep the electrical components of the machine dry. Wipe the machine down after each use. This appliance is for dry use only and is not to be used or stored outdoors in wet conditions.
WARNING: Operating a machine without observing all labels and instructional information could result in injury or damage. Read all machine labels before attempting to operate. Make sure all of the labels and instructional information are attached or fastened to the machine. Get replacement labels and decals from your ALTO distributor.
WARNING: Wet floor surfaces can be slippery. Water solutions or cleaning materials used with this type of machine can leave wet areas on the floor surface. These areas can cause a dangerous condition for the operator or other persons. Always put "Caution" signs around/near the area you are cleaning.
WARNING: Improper discharge of waste water may damage the environment and be illegal.
The United States Environmental Protection Agency has established certain regulations regarding discharge of waste water. City, state and national regulations regarding this discharge may also be in effect in your area. Understand and follow the regulations in your area. Be aware of the environment hazards of chemicals that you dispose.
WARNING: Only use the brushes provided with the appliance or those specified in the Operator's
Manual. The use of other brushes may impair safety.
CAUTION: Use of this machine to move other objects or to climb on could result in injury or damage.
Do not use this machine as a step or furniture. Do not ride on this machine.
CAUTION: Your machine warranty will be voided if anything other than genuine ALTO parts are used on your machine. Always use ALTO parts for replacement.
CAUTION: This machine contains lead acid batteries. The batteries must be disposed of in an environmentally acceptable manner.
Machine
Introduction
ALTO’s Scrubtec 743 and 751 automatic scrubbers are efficient and superior floor cleaning machines.
The Scrubtec uses one brush (rotary) to scrub a path 17" or 20" wide or 2 brushes (cylindrical) to scrub a path 17" wide. A squeegee wipes the floor while the vacuum motor removes the dirty solution from the floor - all in one pass.
The Scrubtec rotary comes complete with two - 12 volt batteries, one battery charger, either one brush or one pad driver, and one operator’s manual.
The Scrubtec cylindrical comes complete with two - 12 volt batteries, one battery charger, two brushes, and one operator’s manual.
Page -4 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Model
Machine Power Supply
SCRUBTEC 743 S Rotary
24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries
3-Lug Driver Style
SCRUBTEC 743 L Rotary
24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries
3-Lug Driver Style Pad or Brush
Traverse
Traverse Forward Speed
Traverse Reverse Speed
Brush Assist
Not Applicable
1/3 HP (0.25 kW)
Variable to 200 ft./min (61 m/min)
Not Applicable Variable to 140 ft./min. (43 m/min)
Low Voltage Cut-Off of Brush and Solution Battery Protection
Motor Vacuum
Solution Tank
Solution Level
3/4 HP(.569 kW) Acoustical High Efficient Tangential 3 stg
11 Gallons (42 liters)
Calibrated Level Indicator
11 Gallons (42 liters) Recovery Tank
Recovery Full Indicator
Parabolic Squeegee
Electric Shut-Off
Swing type with breakaway feature, No tool operation feature,
Squeegee Operation
Cleaning Swath
Motor, Brush
Brush / Pad Size
Brush Speed
Brush Pressure
Brush Solution Retention
Drive Wheels
Caster
On-Board Charger
Grade Cleaning
Length
Width
Height
32" (81cm) hard width with 34" (86cm) flex blade width
Reverse direction on floor and 3 - position manual lever style operation
17" (43.2 cm)
3/4 HP (0,56 kW) 5.2:1 High Torque Gear Box
17" (43.2 cm)
200 RPM
0-90 lbs. (0-40.8 kg)
Fiber Bristles
(2) 8" x 2" (20 cm x 5 cm) Neoprene tread
3½" X 1¼" (8.9 cm x 3.2 cm)
24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50
2%
48 3 /
4
" (123.8 cm)
19" (48.3 cm)
42" (106.7 cm)
Weight w/batteries (130AH) 327 lbs. (148.3 kg) 345 lbs. (156.5 kg)
Shipping Weight w/Batteries (130AH) 454 lbs. (206 kg)
Line of Sight (Operator Height = 5'8")
Noise Level
Vibration
Warranty
472 lbs. (214 kg)
7.5 feet (2.3 m)
73.5 dBA
0.1 m/s 2
Machine 3 Years, Polydur tanks 8 Years, Batteries 18 Months Pro-rated
Model
Machine Power Supply
SCRUBTEC 743 S C Cylindrical
24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries
Brush Assist
Not Applicable
1/3 HP (0.25 kW)
Variable to 200 ft./min (61 m/min)
Not Applicable
Low Voltage Cut-Off of Brushes and Solution
Variable to 140 ft./min. (43 m/min)
3/4 HP(.569 kW) Acoustical High Efficient Tangential 3 stg.
11 Gallons (42 liters)
Calibrated Level Indicator
11 Gallons (42 liters)
SCRUBTEC 743 L C Cylindrical
24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries
Traverse
Traverse Forward Speed
Traverse Reverse Speed
Battery Protection
Motor Vacuum
Solution Tank
Solution Level
Recovery Tank
Recovery Full Indicator
Parabolic Squeegee
Squeegee Operation
Cleaning Swath
Motor, Brush
Brush 2 per Machine
Brush Speed
Brush Pressure
Electric Shut-Off
Swing type with breakaway feature, No tool operation feature,
32" (81cm) hard width with 34" (86cm) flex blade width
Reverse direction on floor and 3 - position manual lever style operation
17" (43.2 cm)
(2) 3/4 HP (0,56 kW)
(2) 4" (10 cm)
1000 RPM
70 lbs. (31.8 kg)
Drive Wheels
Caster
On-Board Charger
Grade Cleaning
Length
Width
Height
(2) 8" x 2" (20 cm x 5 cm) Neoprene tread
3½" X 1¼" (8.9 cm x 3.2 cm)
24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50
2%
48 ¼" (122.6 cm)
20" (50.8 cm)
42" (106.7 cm)
Weight w/batteries (130 AH) 342 lbs. (155.1 kg)
Shipping Weight w/Batteries (130AH) 462 lbs. (213 kg)
Line of Sight -Operator Height = 5'8"
Noise Level
7.5 feet (2.3 m)
73.5 dBA
360 lbs. (163.3 kg)
487 lbs. (221 kg)
Vibration
Warranty
0.1 m/s 2
Machine 3 Years, Polydur tanks 8 Years, Batteries 18 Months Pro-rated
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -5-
Machine Specifications (S20 Rotary and L20 Rotary)
Model
Machine Power Supply
Pad or Brush
Traverse
Traverse Forward Speed
Traverse Reverse Speed
Battery Protection
Motor Vacuum
Solution Tank
Solution Level
Recovery Tank
Recovery Full Indicator
Parabolic Squeegee
Squeegee Operation
Cleaning Swath
Motor, Brush
Brush / Pad Size
Brush Speed
Brush Pressure
Brush Solution Retention
Drive Wheels
Caster
On-Board Charger
Grade Cleaning
Length
Width
SCRUBTEC 751 S Rotary
24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries
3-Lug Driver Style
Brush Assist
Not Applicable
Not Applicable
SCRUBTEC 751 L Rotary
24 Volt D.C., (2) 12V 130AH Wet or (2) 12V 100AH Gel Deep Cycle Batteries
3-Lug Driver Style
1/3 HP (0.25 kW)
Variable to 200 ft./min (61 m/min)
Variable to 140 ft./min. (43 m/min)
Low Voltage Cut-Off of Brush and Solution
3/4 HP(.569 kW) Acoustical High Efficient Tangential 3 stg
11 Gallons (42 liters)
Calibrated Level Indicator
11 Gallons (42 liters)
Electric Shut-Off
Swing type with breakaway feature, No tool operation feature,
32" (81cm) hard width with 34" (86cm) flex blade width
Reverse direction on floor and 3 - position manual lever style operation
20" (50.8 cm)
3/4 HP (0,56 kW) 5.2:1 High Torque Gear Box
20" (50.8 cm)
200 RPM
0-90 lbs. (0-40.8 kg)
Fiber Bristles
(2) 8" x 2" (20 cm x 5 cm) Neoprene tread
3½" X 1¼" (8.9 cm x 3.2 cm)
24 V D.C., 10 Amp, 115/60 or 24 V D.C., 10 Amp, 230/50
2%
48 3 /
4
" (123.8 cm)
19" (48.3 cm)
Height 42" (106.7 cm)
Weight w/batteries (130AH) 327 lbs. (148.3 kg) 345 lbs. (156.5 kg)
Shipping Weight w/Batteries (130AH) 454 lbs. (206 kg) 472 lbs. (214 kg)
Line of Sight (Operator Height = 5'8")
Noise Level
Vibration
Warranty
7.5 feet (2.3 m)
73.5 dBA
0.2 m/s 2
Machine 3 Years, Polydur tanks 8 Years, Batteries 18 Months Pro-rated
Page -6 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Procedures For Transporting
How to Put the Machine Into a Van or Truck
WARNING: This machine is heavy. Get assistance before attempting to transport or move it. Use two able persons to move the machine on a ramp or incline. Always move slowly.
Do not turn the machine on a ramp. Do not stop and leave the machine on a ramp or incline. The loading ramp must be a minimum of 32" wide.
WARNING: Machines can topple over if guided over the edges of stairs or loading docks and cause injury or damage.
Stop and leave this machine only on a level surface.
When you stop the machine, put all switches into their
"OFF" position.
1. Make sure the loading ramp is at least eight
(8) feet (2.5m) long and a minimum of 32" (0.8m) wide, and strong enough to support the machine.
2. Make sure the ramp is clean and dry.
3. Put the ramp in position.
4. Remove squeegee assembly, brush housing and brush or pad driver before loading. ALTO recommends that both the solution tank and recovery tank are empty before loading.
5. On the L models only, turn the key switch "ON" and press the green "ON" button.
6. Align the machine on a level surface five (5) feet
(2 m) in front of the ramp.
7. Put the traverse knob at full speed (on L models only).
8. For the L machines, push in either one of the forward/reverse switches while pushing in the white reverse switch. Back the machine up the ramp. See figure 1.
9. For the S machines, push the machine backwards to the top of the ramp.
10. Switch machine "OFF", and on the L models, turn key switch "OFF".
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Figure #1
Page -7-
Procedures For Transporting (cont.)
11. Fasten the machine to the vehicle. ALTO recommends a strap over the top of the machine and a strap to keep the machine from rolling forward or backwards. If this is not done, there is a possibility of the machine toppling over. Three tie down points are provided on the steel frame of the machine, for securing machine (see figure 2a).
How to Remove the Machine From a Van or
Truck
1.
Make sure there are no obstructions in the area.
2. Make sure the unloading ramp is at least eight
(8) feet (2.5m) long and a minimum of 32"
(0.8m) wide, and strong enough to support the machine.
3. Make sure the ramp is clean and dry.
4. Put the ramp in position.
5. Unfasten the machine.
WARNING: The machine is heavy.
Make sure you use two able persons to assist in moving the machine down the ramp.
6. On S models, get two people to pull machine off ramp. It is recommended that the "S" model be unloaded in the forward position.
7. On the L models only, turn the key switch "ON" and press the green "ON" button.
8. Set the traverse center knob to the slowest forward speed setting. Carefully and slowly, drive the machine to the top of the ramp and start down (L models only).
9. While pushing in the right or left forward switch the machine will go forward (L models only).
See figure 2.
10. As the machine begins to travel down the ramp, push in the forward switch to maintain a slow downward speed (L models only).
11. Replace squeegee assembly, brush housing, and brush or pad driver after machine is unloaded and ready to use.
Figure #2
Tie Down Point
(both sides of machine)
Tie Down Point
Figure #2a
Page -8 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
SYMBOLS USED ON SCRUBTEC 743 and 751
Warning
-
+
Solution Control
Power
Brush Up/Down
Traverse Speed Control
("L Class" only)
Vacuum/Squeegee
Control
Battery Meter
AC Power Indicator
Page -9CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
SYMBOLS USED ON SCRUBTEC 743 and 751
WARNING
71018A
READ OPERATOR'S
MANUAL BEFORE
OPERATING THIS
MACHINE
RISK OF FIRE
• Use only commercially available floor cleaners and waxes intended for machine operation.
• Do not use flammable materials.
RISK OF INJURY
OR DAMAGE TO
MACHINE
• Do not turn, stop or leave machine on a ramp or dock.
71015A
WARNING
READ OPERATOR'S
MANUAL BEFORE
OPERATING THIS
MACHINE
EXPLOSIVE GASES,
CAN CAUSE SEVERE
INJURY, DEATH
OR DAMAGE
TRANSFORMER.
• Keep flammable materials away from batteries. Charge in a cool well ventilated area.
BATTERIES
CONTAIN SULFURIC
ACID. CAN CAUSE
SEVERE INJURY.
• Avoid contact with skin eyes, or clothing. If contact, flush with water.
Get medical attention. If internal.
contact call physician.
WEAR
PROTECTIVE
EYE GEAR.
Page -10-
71017A
WARNING
MOVING PARTS.
CONTACT CAN
CAUSE SEVERE
INJURY.
• Do not place hands or feet under machine when in use.
71014A
WARNING
FALLING PARTS
CAN CAUSE
SEVERE INJURY.
• Make sure tank is secure before servicing.
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Machine Control Panel
Electrical Power Indicator (See Figure 3, Item "A")
A yellow light will be illuminated when the charger is plugged into an AC electrical outlet. The electrical cord must be unplugged and stowed before operating the machine.
Key Switch (See Figure 3, Item "B")
The key switch is standard on the "L" models. It is used primarily for preventing unauthorized use by removing the key. To turn the control panel "ON", the key switch must be turned clockwise and then the green "ON" button must be pressed (see item "C"). To turn the control panel "OFF", turn the key switch counterclockwise.
ON/OFF Buttons (See Figure 3, Item "C")
Pressing the green button turns "ON" the power to the control panel (if the machine is equipped with a key switch, first turn the key clockwise). Pressing the red button turns "OFF" power to the control panel (if the machine is equipped with a key switch, the power can also be turned "OFF" by turning the key counterclockwise.)
NOTE: The "L model" machine is equipped with self diagnostics and will sometimes fail to operate if a fault is detected. Once the fault is corrected the machine can be reset by turning the power "OFF" and turning it back
"ON". If this fails to correct the problem, contact your authorized service personnel immediately.
NOTE: This machine is equipped with a battery power saving device. If the machine is unattended for more than 16 minutes, it will automatically shut itself off.
Battery Meter (See Figure 3, Item "D")
The battery meter indicates the relative charge of the battery pack. The meter has two green, one yellow and one red light. When the light switches to "red" the brush(es) and solution flow will stop. All other functions will continue to operate. The batteries must then be immediately recharged to prevent shortening the life of the battery pack.
Control Handles (See Figure 3, Item "E")
The control handles are located at the rear of the machine. They are used to guide the machine.
Traverse Speed Knob (See Figure 3, Item "F")
To increase speed, turn knob clockwise. The machine will not traverse when the knob is turned fully counterclockwise.
Forward/Reverse Switch (See Figure 3, Item "G")
On Traverse "L" Models Only - The forward/reverse switch starts the traverse motor forward and when the brush head is in the down or scrub position it also activates the brush motor(s) and solution flow. There is a two second delay for the brush motor(s) to stop after releasing the switch. Either the right or the left switch can be used. Use either switch in conjunction with the white reverse switch to reverse the traverse motor.
"S" Model - On the non-traverse models these switches activate the brush motor(s) and solution flow when the brush head is in the down or scrub position.
E
C
A
I
G
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
F
H
L M N 0 P Q
Figure 3
J
K
G
B
E
Page -11-
D
Machine Control Panel
Reverse Switch (See Figure 3, Item "H")
On Traverse "L" Models Only - The reverse switch, when used in conjunction with one of the forward/ reverse switches, causes the machine to reverse directions. The reverse speed is 70% of the forward speed.
Brush Motor Buttons (See Figure 3, Item "I")
To lower brush head and activate brush motor(s) and solution flow, press and hold the down button until the green light is illuminated. Continue to press and hold down button for additional brush pressure, or until brush head stops. The brush motor(s) and solution will then operate when either one or both of the forward/reverse button(s) are pressed. To deactivate the brush motor(s) and solution flow, raise the brush head by pressing and holding the up button until the green indicator light turns off.
E
C
Solution Control Buttons (See Figure 3, Item "J")
The solution control buttons regulates the flow of chemical solution to the floor. When powering up the machine, the solution setting will automatically adjust to the mid setting (see your authorized ALTO serviceman if a different setting is preferred). To increase the flow, press and hold or press the upper button (+) multiple times. The green bar will move up the scale as the flow increases. To decrease the flow, press and hold or press the lower button (-) multiple times. The green bar will move down the scale as the flow decreases. When the bar reaches the lowest setting the solution flow is turned "OFF". NOTE: The solution will only flow when the brush head is down and in the operating position.
Vacuum Motor Switch (See Figure 3, Item "K")
To activate the vacuum motor, lower the squeegee handle. The handle has three positions. Lowest position is the operating water pickup position. The center position is used during transport to clear vacuum hose. The upper position is the vacuum motor "OFF" position.
Circuit Breakers (Figure 3, Items "L", "M", "N",
"O", "P" & "Q"
The circuit breaker reset buttons are located on the lower control handle. The breakers are located as follows:
Item "L" - Control Circuits (5 amps)
Item "M" - Control Module and Head Actuator (5 amps)
Item "N" - Vacuum Motor (25 amps)
Item "O" - Rotary Brush Motor (40 amps) or
Cylindrical Brush Motor (25 amps)
Item "P" - Cylindrical Brush Motor (25 amps)
Item "Q" - Traverse Motor (25 amps) (L Models Only)
A
I
G
F
H
L M N 0 P Q
Figure 3
J
K
G
E
B
D
Page -12 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Machine Controls and Features
Squeegee Lift Handle, See Figures 4 and 5
The squeegee lift handle is located in the control handle. It is used to raise or lower the squeegee. The vacuum motor is turned on when the handle is lowered to either the center or lowest position.
Float Shut Off, See Figure 6
The shut-off switch for the vacuum motor is located in the recovery tank. It automatically turns off the vacuum motor when the recovery tank is full. NOTE: If excessive foaming occurs in recovery tank, defoamer must be added. Damage to vacuum motor could result from foam entering into the vacuum motor.
Parking Brake (Optional)
NOTE: Parking Brake must be used if operating machine on surfaces with greater than 2% gradient.
The parking brake prevents movement of the machine.
CAUTION: Do not activate the parking brake while the machine is moving.
The brake is located to the right hand rear of the machine. Press pedal to activate brake and lift pedal to disengage brake.
Figure 4
Figure 5
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Figure 6
Page -13-
How To Prepare the Machine For Operation
The Scrubtec machines use two 12-volt batteries. The batteries are located in the battery compartment under the recovery tank. It is recommended to remove the recovery tank when installing the batteries.
How To Install The Batteries
To install the batteries, follow this procedure:
1.
Turn the machine off. Set brake (if equipped).
2.
Make sure the recovery tank is empty. NOTE:
The recovery tank on the Scrubtec is designed for easy removal and cleaning.
3.
Disconnect the hoses from the recovery lid (See
Figure 7.)
4.
Unhook the recovery tank drain hose valve from it's hanger bracket and lay the loose end on the floor (See figure 8.)
WARNING: Before raising or removing the recovery tank, be sure tank is empty. Do not operate or perform maintenance on the machine while the recovery tank is in the open position. The tank can be accidentally bumped and it may slam shut.
5.
Disconnect the blue electrical float connector
(See Figure 9).
6.
Unhook the tether clip from the recovery tank
(See Figure 10).
7.
Unlatch and stow prop rod back in solution tank and close recovery tank.
8.
While pushing the tank to the rear, carefully lift and remove recovery tank from the machine.
Leave the recovery drain hose attached to the recovery tank.
Figure 7
Figure 8
Figure 9
Page -14-
Figure 10
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
How To Prepare the Machine For Operation
9.
Place the batteries in the compartment shown in
Figure 11.
WARNING: The batteries are heavy. Lifting batteries without help could result in an injury. Get help to lift the batteries.
WARNING: Working with batteries can be dangerous. Always wear eye protection and protective clothing when working near batteries. NO SMOKING!
10. Connect the cable between the batteries and install the long machine cables as indicated (See
Figure 11).
11. Secure the batteries in place with the battery straps (See Figure 12).
12. Reinstall the recovery tank making sure the pivot pin in the recovery tank is installed under the metal plate on the solution tank (See figure 13A.)
13. Reattach the tether to the recovery tank (See figure 10).
WARNING: The recovery tank can fall off of the machine when opening the tank or operating the machine, if the recovery tank is not properly installed.
Make sure that the recovery tank pivot pin is under the metal plate on the solution tank and the tether is attached to the recovery tank.
14. Reconnect the vacuum and squeegee hoses to the recovery lid. Make sure the hose to the vacuum motor and the rear squeegee hose are installed over the top of the drain hose (See figure 13B).
15. Reconnect the blue float connector (See figure 9, page 12).
16. Charge the batteries before using the machine.
-
+
Figure 11
Figure 12
Figure 13A
-
+
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Figure 13B
Page -15-
How To Prepare the Machine For Operation
Battery Maintenance
The electrical power to operate the machine comes from the storage batteries. Storage batteries need preventative maintenance.
To maintain the batteries in good condition, follow these instructions.
1.
Keep the electrolyte at the correct level. The correct level is between 1/4" (1/2 cm) below the bottom of the tube in each cell and above the tops of the plates. Check the level of the electrolyte each time you charge the batteries. See figure 14.
NOTE: Check the level of electrolyte prior to charging the batteries. Be sure the plates in each cell are covered with electrolyte before charging. Do not top off the cells prior to charging the battery. Electrolyte expands during charging. As a result, the electrolyte could overflow from the cells. Always top off the cells with distilled water after charging.
CAUTION: Irreversible damage will occur to the batteries if electrolyte does not cover the plates. Keep the electrolyte at the correct level.
CAUTION: Machine damage and discharge across the tops of the batteries can occur if the batteries are over filled.
Do not fill the batteries up to the bottom of the tube in each cell.
Wipe any acid from the machine or the tops of the batteries. Never add acid to a battery after installation.
CAUTION: Batteries must be refilled with distilled water only. Do not use tap water as it may contain contaminants that will damage batteries.
2. Keep the tops of the batteries clean and dry. Keep the terminals and connectors clean. To clean the top of the batteries, use a damp cloth with a weak solution of ammonia or bicarbonate of soda solution. To clean the terminals and connectors, use a terminal and connector cleaning tool. Do not allow ammonia or bicarbonate of soda to get into batteries.
3.
Keep the batteries charged.
4.
To drain the battery compartment: See Figure 15.
a. Always wear eye protection and protective clothing.
b. Add a weak solution of ammonia or bicarbonate of soda solution to the battery compartment to neutralize any spilled acid.
c . Pull drain hose out from under the transaxle.
d. Place your hand behind flange and open the valve.
e. When empty, close valve.
f. Replace valve and drain hose on top of transaxle.
g. Neutralize any acid spills with ammonia or bicarbonate of soda.
Page -16-
Figure 14
Figure 15
Correct Level
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
How To Prepare the Machine For Operation
How To Charge The Batteries
WARNING: Charging the batteries in an area without adequate ventilation could result in an explosion. To prevent an explosion, charge the batteries only in an area with good ventilation.
WARNING: Lead acid batteries generate gases which could explode. Keep sparks and flames away from batteries. NO
SMOKING!
To charge the batteries, follow this procedure:
1. Place the machine on a flat-level surface with adequate ventilation.
2.
Set the parking brake if one is provided.
3.
Remove power to the control panel by pressing the red "OFF" button. If the machine is equipped with a key switch, turn the key counterclockwise to the
"OFF" position.
4.
Before charging the batteries, the battery compartment needs to be vented. To vent the compartment, the recovery tank needs to be propped open.
WARNING: Before raising or removing the recovery tank, be sure tank is empty. Do not operate or perform maintenance on the machine while the recovery tank is in the open position. The tank can be accidentally bumped and it may slam shut.
5.
The Scrubtec is equipped with an on-board charger located behind the recovery tank (See Figure 17).
The charger is a 3-stage charger designed to maximize battery life. The AC power cord to the on-board charger is located in its storage compartment under the control handle at the rear of the machine (See Figure 16). Pull the cord out of the storage compartment.
6.
Connect the charger to a properly grounded single phase (3-wire) wall receptacle. NOTE: When the charger is plugged into the wall receptacle, the yellow light will be illuminated on the control panel next to the plug symbol and the charger with begin charging (see figure 3, item A).
3-Stage Charging Sequence:
• Bulk Stage - In the bulk stage of charging, the red light is illuminated on the charger (See
Figure 17). During this stage the charger is supplying its full amp output to the batteries. It will continue to charge the batteries at this rate until the batteries reach approximately 75% of their capacity.
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Figure 16
Figure 17
Page -17-
How To Prepare the Machine For Operation
• Absorption Stage - In the absorption stage the red and green light will be illuminated on the charger
(See Figure 17). During this stage the charger maintains constant voltage and lets the batteries absorb the charge at their own rate.
• Float and Maintenance Stage - In the maintenance stage the red light turns off and only the green light will be illuminated on the charger (See
Figure 17. During this stage the charger applies a lower, closely regulated voltage to maintain full charge and prevents discharge. Batteries can be connected indefinitely without harm.
8.
Unplug charger power cord from the wall outlet before powering up control panel on machine. Store the charger power cord in the storage compartment located under the control handle (See Figure 16).
9.
Unlatch and stow prop rod back in solution tank and close recovery tank after charging has been completed.
NOTE: It is not necessary to remove the brush housing assembly when removing or installing the brush or pad driver. For greater access to the brush or when driving the machine up a ramp, the brush housing assembly can be removed. To remove brush housing assembly, pull outward on the spring loaded pin on the left side of the housing, then lift the brush housing assembly up and outward (See Figure 18). Reinstall the brush housing assembly in reverse order, making sure the cross bar in the brush housing is inserted into the two slots located in the motor mount and the spring loaded pin is locked into position (See
Figure 19).
How To Install Rotary Brush or Pad Driver (if equipped)
To install the brushes or pad drivers on the machine, follow this procedure:
1.
Turn the key switch clockwise ("L" models only). Press the green "ON" button.
2.
Raise the brush head by pressing and holding the brush up switch until brush head is in it's full up and rotated position (See Figure 20).
3.
Press the red "OFF" button or turn the key switch counterclockwise on machines equipped with key.
4.
Put a brush or pad driver under the brush motor plate and align the lugs on the motor with the slots on the brush gimbal.
5.
Push the brush up and rotate counter direction to scrub rotation, until lugs lock (See Figure 20).
6.
Reinstall brush housing if removed.
DANGER: Operating a machine that is not completely or fully assembled could result in injury or property damage. Do not operate this machine unless it is completely assembled.
Inspect the machine carefully before operation.
Page -18-
Figure 18
Figure 19
Figure 20
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
How To Prepare the Machine For Operation
How To Remove Rotary Brush or Pad Driver (if equipped)
To remove the brush or pad driver from the machine, follow this procedure:
1. Turn the key switch clockwise ("L" models only).
Press the green "ON" button.
2. Raise the brush head by pressing and holding the brush up switch until brush head is in it's full up and rotated position.
3. Press the red "OFF" button or turn the key switch counterclockwise on machines equipped with key.
4 To remove brush, rotate brush in the same direction to scrub rotation with a quick snapping action until brush releases (See Figure 21).
5. Reinstall brush housing if removed.
How To Change Or Rotate Cylindrical Brushes (if equipped)
To install or rotate brushes on the machine, follow this procedure:
1. Turn the key switch clockwise ("L" models only).
Press the green "ON" button.
2. Raise the brush head by pressing and holding the brush up switch until brush head is in it's full up and rotated position.
3. Press the red "OFF" button or turn the key switch counterclockwise on machines equipped with key.
4 Go to front of the machine and remove thumb screw from brush door (See Figure 22).
5. Lower door approximately 1/2 inch and slide door and bearing assembly off shaft (See Figure 23).
6. Remove brush spacer and brush by sliding off of brush shaft (See Figure 24).
7. Rotate brush or replace.
8. Slide brush on shaft and rotate slowly until drive pins are lined up with brush slots. Push brush all the way in.
9. Install brush spacer on shaft.
10. Slide brush door bearing assembly on shaft.
11. Raise door and install thumb screw.
DANGER: Operating a machine that is not completely or fully assembled could result in injury or property damage.
Do not operate this machine unless it is completely assembled. Inspect the machine carefully before operation.
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
C
Figure 21
Figure 22
Figure 23
Figure 24
Page -19-
How To Operate The Machine
How To Operate The Squeegee
The squeegee wipes the floor while the vacuum motor removes the dirty solution from the floor. Use your hand to lower or raise the squeegee handle. To operate the squeegee, follow this procedure:
1. To lower the squeegee and start the vacuum motor, move the squeegee lever to the right and down (See figure 25).
2. To raise the squeegee, lift the squeegee lever up
(See figure 26.)
NOTE: The center position lets the vacuum motor continue to run with the squeegee off the floor to avoid drips and also allows you to back up the machine.
How To Fill The Solution Tank
The solution tank is filled at the rear of the machine (See figure 27). To fill the solution tank follow this procedure:
1. Add a cleaning chemical to the solution tank. For the correct amount of chemical, follow the directions shown on the container.
2.
Remove the solution lid and fill the solution tank with water.
WARNING: Water solutions or cleaning materials used with this type of machine can leave wet areas on the floor surface. These areas can cause a dangerous condition for the operator or other persons. Always put
CAUTION signs near the area you are cleaning.
WARNING: Machines can ignite flammable materials and vapors. Do not use with or near flammables such as gasoline, grain dust, solvents and thinners. Use only a commercially available cleaners and concentrations intended for floor scrubbing applications.
WARNING: ALTO recommends a maximum water temperature of 120 o F (49 o C).
Operating The Machine
NOTE: Put the machine in the lowest traverse speed setting. Use the machine in an area that has no furniture or objects until you can do the following:
1.
Move the machine in a straight direction, forward and backward.
2.
Stop the machine safely.
3.
Turn the machine both left and right and return to a straight direction.
To move the machine, follow this procedure:
1.
Release the parking brake (if equipped with machine).
2.
Turn the key switch clockwise to the "ON" position (on
"L" models only). Press the green "ON" button.
3.
Raise the brush to the highest setting.
4.
Raise the squeegee.
Page -20-
Figure 25
Figure 26
Figure 27
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
How To Operate The Machine
5.
When either the left or right forward/reverse switches
(figure 28, item A) are pushed in, the machine will go forward ("L" models only).
6.
Control the speed of traverse by using the traverse speed control knob ("L" models only) (figure 28, Item
C).
7.
To stop, release the forward/reverse switch.
8.
To reverse the machine, push in the white reverse switch (figure 28 item B) and either the right or left forward/reverse switch (figure 28 item A) at the same time ("L" models only).
9.
To stop, release the forward/reverse switch.
10. To turn the machine, push the rear of the machine to the side.
11. When you stop the machine, press the red "OFF" button or turn the key switch counterclockwise to the
"OFF" position ("L" models only). Remove the key and set the parking brake (if equipped).
A
How To Clean A Floor
WARNING: Water solutions or cleaning materials used with this type of machine can leave wet areas on the floor surfaces. These areas can cause a dangerous condition for the operator or other persons. Always put CAUTION signs near the area you are cleaning.
To clean a floor follow this procedure:
1. Set the parking brake (if equipped with machine.)
2. Put the water and a cleaning chemical in the clean solution tank.
3. Release the parking brake (if equipped with machine.)
4. Turn the key switch clockwise to the "ON" position ("L" models only). Press the green "ON" button.
5. Lower the squeegee.
6. Press the brush down button until yellow light is illuminated and the correct pressure is achieved.
WARNING: This machine is capable of maximum head pressure with worn pads or brushes. With this feature, there is the possibility of exceeding the recommended brush pressure on new pads or brushes. This will either create re-occurring circuit breaker tripping or the possibility of lost traction and control. The brush switch should be activated to accomplish only enough brush pressure for the job. This will allow longer battery life and cleaning time.
NOTE: Keep the machine moving when the brush is rotating on the floor. Pre-wet brush/pad or keep light pressure on brush until solution flow is adequate to keep brush/pad from scratching the floor.
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
B
C
A
Figure 28
Page -21-
How To Operate The Machine
To pre-wet brushes you should first turn the speed knob to the lowest traverse setting on the "L" model. Then on both the "S" and "L" models, lower brushes until brushes are just touching the floor and the yellow light on the control panel in illuminated. Activate the forward/reverse switch to start motor and solution flow.
NOTE: On the "L" model, the machine will not move when the traverse speed knob is rotated fully counterclockwise.
7. Adjust the flow of clean solution to the flow desired.
8. Move the machine across the floor in the forward direction.
9. Make a 180° turn.
NOTE: When you make more passes across the floor, let the brush clean approximately 2 inches (5 cm) of the area already cleaned by the brush.
NOTE: During most cleaning procedures, apply and remove the solution in one operation.
How To Clean A Very Dirty Floor
To clean a very dirty floor, follow this procedure:
1.
Apply solution to the floor.
2.
Do not lower the squeegee. This will keep the vacuum motor off.
3.
Lower the brush or pad and scrub the floor.
4.
Scrub the floor again with additional solution and lower the squeegee.
5.
Pick up all the solution with the squeegee.
Maintenance
WARNING: Maintenance and repairs must be done by authorized personnel only.
WARNING: Always empty the solution tank and recovery tank before doing any maintenance.
WARNING: Keep all fasteners tight.
These Maintenance Procedures Must Be Done
Every Day
Keep the machine clean, it will need fewer repairs and have longer life.
Do These Procedures When You Begin Your Work Period
1.
Disconnect AC power from battery charger (follow charger instructions).
2.
Store AC power cord to charger in machine storage compartment (See Figure 29).
3.
Make sure the screen filter is installed properly in the recovery lid and is clean (See figure 30).
Figure 29
4.
Make sure the recovery tank lid is on correctly (See
Figure 30).
Page -22-
Figure 30
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Maintenance
5.
Make sure the valve on the recovery drain hose is clean. Tightly close the valve.
6.
Make sure the brush/pad is in position and installed correctly.
7.
Make sure brush housing and skirts are in position on the brush head.
8.
Check the installation of the squeegee and squeegee hose.
9.
Make sure the solution drain / level indicator hose is secure on the storage mount on the rear of the machine.
Do These Procedures When You End Your Work
1. Drain the solution tank (Figure 31) and the recovery
tank (Figure 32). To drain the tanks , follow this
procedure: a. Press the red "OFF" button or turn key switch counterclockwise to "OFF" position
("L" model only).
b. Remove the drain hose from the back of the machine.
c. Put the end of the hose over a drain or bucket.
d. Recovery Tank:
1.) Turn the valve housing to the left (See
Figure 33).
2.) To open the valve completely, turn the housing fully to the left. Pull the housing off of the valve (Figure 34).
e. Solution Tank:
When hose is lowered below water level, water will flow.
2. Flush the tanks. To flush the tanks, put clean water in the tank through the opening on top of the tank.
3. If a tank or drain hose has an obstruction, use a pressure water hose to flush the tank or hose. Put the water hose into the drain hose.
4. Leave the tanks and the recovery drain valve open to dry in the air.
5. Check the squeegee blade. Use a cloth to clean the squeegee blade. If the squeegee blade is damaged or worn, turn or replace the blade.
6. Check and clean the recovery lid gasket. Use a mild cleaning solution and rinse the parts in clean water.
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Figure 31
Figure 32
Figure 33
Figure 34
Page -23-
Maintenance
7. On machines with cylindrical brush head, the debris tray needs to be emptied regularly to prevent overflow. To remove the debris tray from the machine follow this procedure (See Figure 35).
a. Go to the left side of the machine, to the rear of the cylindrical brush head.
b. Grab the end of the tray with the left hand and the center of the tray with the right hand.
c. Lift center of tray with right hand and slide tray out with left hand.
d. Empty tray and clean before sliding tray back in.
Make sure upper and lower slides are engaged.
Check the batteries and if necessary add distilled water after charging. The correct level is within 1/4 inch (1/2 cm) of the bottom of the tube in each cell.
CAUTION: Tap water may contain contaminants that will damage batteries.
Batteries must be refilled with DISTILLED WATER
ONLY.
WARNING: Lead acid batteries generate gases which can cause an explosion. NO SMOKING. Always wear eye protection and protective clothing when working near batteries.
Use a clean cloth and wipe the surface of the machine.
Charge the batteries. See the instructions in the section of this book called “How To Charge The Batteries”.
Maintenance Procedures To Be Done Every Week:
WARNING: Maintenance and repairs must be done by authorized personnel only.
Always empty the solution tank and the recovery tank before doing any maintenance. Keep all fasteners tight.
WARNING: Always wear eye protection and protective clothing when working near batteries. Do not put tools or other metal objects across the battery terminals or the tops of the batteries.
CAUTION: To prevent damage to the machine, and discharge across the tops of the batteries, do not fill the batteries above the bottom of the tube in each cell. Wipe any acid from the machine or the tops of the batteries. Do not add acid to battery after installation.
Page -24-
Figure 35
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Maintenance
NOTE: Always turn machine off before servicing machine.
WARNING: Always wear eye protection and protective clothing when working near batteries. NO SMOKING!
WARNING: Before raising or removing the recovery tank, be sure tank is empty. Do not operate or perform maintenance on the machine while the recovery tank is in the open position. The tank can be accidentally bumped and it may slam shut.
1. Disconnect the batteries. Use a cloth and a solution of ammonia or bicarbonate of soda to wipe the top of the batteries. Clean the battery terminals. Reconnect the batteries.
2. Check the hoses for leaks, obstructions and other damage.
3. On machines with cylindrical brush head, check the brush drive belts for proper tension. Belts must be tensioned properly to prevent slipping. To tighten the belts, follow this procedure: a. Remove belt cover by removing screws.
b. Loosen the 2 screws on either side of the motor pulley.
c. Use a small pry bar or large screwdriver to pry the motor upward to achieve correct belt tension. Pry on the motor close to where the motor contacts the brush head casting (See
Figure 36, A).
d. Hold tension and tighten 2 screws (See Figure
36,B).
e. Replace belt cover.
A
Figure 36
B
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -25-
Maintenance
Maintenance For The Squeegee
To remove the squeegee, follow this procedure:
1. Remove the squeegee assembly by loosening the two knobs that attach the squeegee to the machine. Pull the squeegee assembly off (See figure 37).
2. Inspect the squeegee blade.
3. If the blade is worn, turn the blade so that a new edge is in the wiping position.
4. Reinstall squeegee assembly on the machine.
How To Adjust The Squeegee
The following adjustments are set at the factory, however they may require slight adjustment.
Adjusting Squeegee Tilt:
The tilt of the squeegee causes the rear blade to raise up in the center or on the ends, depending on which direction the tilt is changed. For tilt adjustment, refer to figure 38. Loosen left and right screw "X". In order to bring the blades down in the center, tip "Y" down. To bring both ends down, tip "Y" up. Make very small adjustments and try it until a uniform flare is achieved.
Adjusting Squeegee Blades:
When properly installed the front blade should be approximately 0.06" (1.5mm) above the rear blade (See figure 39).
WARNING: Maintenance and repairs must be done by authorized personnel only .
WARNING: Electrical repairs must be done by
authorized personnel only.
Consult your authorized service person to do the service procedures.
Use only genuine ALTO parts.
Figure 37
Figure 38
REAR BLADE
0.06 (1.5 mm)
Figure 39
Page -26 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
SCRUBTEC 743 and 751
Accessories
A
CCESSORIES
Description
Clarke Care Kit
29" Squeegee Assembly
32" Squeegee Assembly
Poly Dur Protectant
Hour Meter Kit
Key Switch Kit
Parking Brake Kit
Vacuum Muffler Kit
Power Wand Kit
Urethane Caster Assembly
Dual Direct Clutch Plate
Center Lock Pad Retainer
Squeegee Hose "S" Trap
Part No.
14607A
18820A
10129A
50478A
10656A
10490A
10491A
10492A
10489A
61290A
30034A
56941A
30482A
Rotary Disk Brushes and Pad Assemblies:
Description (743) Part No. (751) Part No.
Pad Driver Asm.
Polypropylene
10405A
52539A
30629A
30630A
Nylon
Lite Grit
Clean Grit
52540A
52543A
52541A
30631A
30632A
30633A
Cylindrical Brushes
Size Description
4"
4"
Polypropylene
Nylon
4"
4"
Clean Grit
Super Grit
Part No.
30231A
30232A
30233A
30234A
29" Squeegee Blades
Description
Blade, Rear - Gum Rubber
Blade, Rear - Nitrile Solid
Blade, Front - Ribbed Urethane
Blade, Front - Notched Neoprene
32" Squeegee Blades
Description
Blade, Rear - Gum Rubber
Blade, Rear - Nitrile Solid
Blade, Rear - Ribbed Orange
Blade, Front - Ribbed Natural
Blade, Front - Slit Grout
Blade, Front - Ribbed Orange
Part No.
30931A
30938A
30951A
30930A
Part No.
30067A
30081A
30085A
30066A
30079A
30083A
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -27-
HOW TO CORRECT PROBLEMS IN THE MACHINE
PROBLEM CAUSE ACTION
There is no solution flow.
The solution flow does not stop.
The solution tank is empty.
There is an obstruction in the solution hose or filter.
The solution valve or electric wiring is
damaged.
The control module is defective.
The solution valve is open.
The solution valve or wiring is damaged.
The solution valve is dirty
There is a damaged seat and washer in the solution valve.
The control module is defective.
The machine does not remove all the water from the floor.
The squeegee is up.
The squeegee tilt is not correct.
Fill the solution tank.
Remove the obstruction from the hose or filter.
Repair or replace the valve or the electric wiring.
Replace control module
Close or Clean the solution valve.
Repair or replace the valve and the wiring.
Clean the solution valve.
Replace the seat and washer.
The recovery tank is full.
The screen filter is dirty.
There is an obstruction or damage in the squeegee or squeegee hose.
The vacuum motor is not running.
Replace control module.
Lower the squeegee.
To adjust, see the section titled "How to Adjust the Squeegee".
Drain the recovery tank.
Clean the screen filter.
Remove the obstruction or repair the damage.
The squeegee hose is disconnected, or damaged
The squeegee blade is damaged, worn, or incorrectly installed.
The gaskets on the cover of the recovery tank are damaged.
Check for tripped breaker. Have an authorized service person make repairs.
Check and connect hose.
Turn or replace the squeegee blade.
Correctly install the squeegee blade.
Replace the gaskets.
The batteries do not give the normal running time.
The battery terminals are dirty or damaged.
The electrolyte level is too low.
The batteries are not fully charged.
The charger is damaged.
The battery is defective.
The batteries are disconnected.
Brush is in heavy scrub setting.
Clean the terminals and connectors. Replace the damaged cables. Charge the batteries.
Add distilled water to each cell and charge the batteries.
Charge the batteries for a full 16 hour charge.
Have an authorized service person repair the charger.
Check voltage of each cell while discharging.
Connect the batteries.
Adjust Pressure.
Page -28 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
PROBLEM
The cleaning is not even.
The machine does not run.
CAUSE
The scrub brush or pad is worn.
There is damage to the brush assembly, caster or the solution valve.
The brush motor is not running
The solution level is low.
The machine loses power.
Key or switch is off.
Batteries are disconnected.
Battery terminals are dirty.
Batteries are discharged
ACTION
Replace the scrub brush or pad.
Have an authorized service person make the needed repairs.
Check for tripped breaker. Reset. Check for loose connections.
Fill the solution tank.
NOTE: If the problem continues consult an authorized service person.
Reset the circuit breaker.
Turn key or switch on.
Check the battery connections.
Check battery meter and recharge
NOTE: If the problem continues consult an authorized service person.
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -29-
NOTE S
Page -30 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
SCRUBTEC 743 S
SCRUBTEC 743 L
SCRUBTEC 751 S
SCRUBTEC 751 L
SCRUBTEC 743 S C
SCRUBTEC 743 L C
Section II
Parts and Service Manual
(70900A)
U.S. Patent No. 6,105,192; No. 6,557,207; No. 6,760,947
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -31-
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Final Assembly 5/05
1
2
3
13
14
12
Page -32-
5
4
2
3
3
2
12
15
16
12
11
6
10
9
8
2
7
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Final Assembly Parts List 5/05
14
15
16
NI
NI
9
10
11
12
13
Ref. #
1
2
3
6
7
4
5
8
NI
NI
NI
NI
NI = Not Illustrated
Part No.
Description
Page 32 Recovery Tank Assembly
980651 Washer, Flat 5/16"
80212A Screw, M8 x 1.25 x 35mm Hex Head
Page 34 Solution Tank Assembly
Page 48 Rotary Disk Head Assembly Option
Page 46 Cyl. Head Asm. Option (L17 Cyl. model only)
Page 44 Frame Assembly
80197A Screw, M8 x 1.25 x 20mm Hex Head
980652 Washer, Lock 5/16"
Page 42 Squeegee Assembly
Page 40 Squeegee Lift Assembly
80179A Screw, M6 x 1 x 15mm Pan Head
Page 38 Control Housing Assembly
Page 36 Electrical Assembly
30334A Tether
52570A Clip, Tether
40606A Battery, 130AH, 12V Wet Option
40605A Battery, 130AH, 12V Dry Option
40070A Battery, 100AH, 12V Gel Option
41206A Battery Cable (Taper Style)
41217A Battery Cable (Ring Style) (use w/gel batteries)
61337A Battery Cable Adapter (use w/gel batteries)
1
1
1
2
2
4
1
1
6
1
2
1
1
2
1
1
1
1
4
Qty
1
8
4
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -33-
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Recovery Tank Assembly 5/05
26
27
25
30
28
29
24
23
1
2
3
6A
6B 6C
4
5
8
6
7
9
10
12
11
13
18
19
14
15
14
17
16
20
21
22
18
Page -34 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
Recovery Tank Parts List 9/05
9
10
11
12
6B
6C
7
8
Ref. # Part No.
1 80176A
2
3
30207A
30065A
4
5
6
6A
692409
80196A
10660A
40002A
56459B
59877A
30218A
30227A
30226A
52560A
30225A
82100A
17
18
19
20
13
14
15
16
872102
962957
52206A
43402A
41809A
80193A
832002
35102A
25
26
27
28
21
22
23
24
61459A
980603
80110A
920296
752020
51060A
30482A
61451B
29 962666
30 53179A
NI 71014A
Description
Screw, M5 x .8 x 12mm Pan Head
Recovery Lid
Lid Gasket
Chain
Nut, M5 x .8 Hex
Float Switch Kit (includes 6A, 6B, 6C)
Float Switch (included in #6)
Strain Relief (included in #6)
Washer, Seal (included in #6)
Recovery Tank
Drain Housing
Drain Plug
O-Ring
Drain Body
Locknut, 1/2" Conduit
Nylon Clip, 5/16 OD
Screw, #10-16 x 1/2
Chain
Housing, Connector (included in 6A)
Contact (included in 6A)
Screw, M5 x .8 x 10mm Pan Head
Drain Valve Clamp
Drain Hose
Latch Plate
Washer, LK #10 Ext Tooth
Hose Clamp
Nut, 10-24
Clamp
Vacuum Hose
Squeegee Hose
Vacuum Screen
Screw, 10-24 x 3/4 Pan Head
Red Cable Tie
Label, Falling Parts
NOTE: indicates a change has been made since the last publication of this manual.
1
1
1
1
1
1
1
2
1
1
1
1
1
2
4
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
Qty
1
1
1
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -35-
37
38
36
39
14
6
12
2
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Solution Tank & Front Cover Assembly 5/05
45
39
44
40
4
1
2
3
46
5
43
41
42
6
2
2
6
9
8
7
7
12
2
6
13
18
3
17
16
19
20
15
14
21
47
35
32
34
33
23
21
27
21
26
28
24
23
22
Page -36 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Solution Tank & Front Cover Parts List 8/05
44
45
46
47
NI
40
41
42
43
36
37
38
39
32
33
34
35
24
26
27
28
20
21
22
23
20
20
20
20
17
18
19
20
13
14
15
16
8
9
12
13
Ref. # Part No.
1 80199A
2
3
980614
87026A
4
5
6
7
40724A
61297B
80179A
80180A
61298B
52551A
52548A
30608A
30221A
80202A
87036A
80196A
80209A
61457A
61456A
30286A
30702A
30703A
30704A
30705A
30706A
50248A
53607A
30172A
51204A
820207
30453A
59614A
51518A
51526A
55189A
31242A
30239A
30222A
61280A
980603
52552A
41809A
43401A
80210A
80176A
61345A
40817A
53562A
70666B
Description
Nut, M6 x 1 Hex Nylock
Lock Washer, 1/4" Ext. Tooth
Flat Washer, 1/4"
Vacuum Motor
Front Motor Mount
Screw, M6 x 1 x 15mm, Pan Head
Screw, M6 x 1 x 30mm, Pan Head
Rear Motor Mount
Battery Strap
Screw Tab
Front Cover, (Scrubtec 743)
Front Cover, (Scrubtec 751)
Screw, M5 x .8 x 15mm, Pan Head
Flat Washer, #10
Nut, M5 x .8 Hex Nylock
Shoulder Bolt, M5 x 6 x 8mm
Left Front Cover Bracket
Right Front Cover Bracket
Tank, Solution (Scrubtec 751 S)
Tank, Solution (Scrubtec 751 L)
Tank, Solution (Scrubtec 743 L)
Tank, Solution (Scrubtec 743 SC)
Tank, Solution (Scrubtec 743 LC)
Tank, Solution (Scrubtec 743 S)
Hose Clamp
Elbow, 1/4 NPT x 3/8
Hose
Valve, Solution
Adapter
Hose
Battery Drain Valve
Bushing
Hosebarb, 3.8 x 90°
Hosebarb, 1/2 x 90°
Bushing
Level, Drain Hose
Solution Lid
Drain Hose Hanger
Lock Washer, #10 Ext. Tooth
Battery Strap, w/Buckle
Contact, Connector
Housing, Connector
Screw, M6 x 1 x 10mm, Flat Head
Screw, M5 x .8 x 12mm, Pan Head
Hinge Bracket
Brush Mechanism
Filter Bowl
Label, ALTO (Front Cover)
1
1
1
1
1
2
1
6
1
1
1
1
1
1
2
1
4
4
1
6
4
1
1
1
Qty
2
10
4
8
2
1
1
2
1
2
1
1
2
2
1
2
1
4
1
1
2
2
2
2
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -37-
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Electrical Assembly 5/05
41
40
39
38
41
40
34
30
2
35
36
32
24
37
50
29
28
27
33
30
2
30
2
31
42
43
2
1
7
1
2
51
44
45
7
3
4
5
6
8
9
10
12
46
47
48
49
17
18
16
15
23
19
13
14
20
21
11
26
25
24
22
Page -38 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Electrical Parts List 9/05
NOTE: indicates a change has been made since the last publication of this manual.
Ref. # Part No.
193951
80205A
80204A
40169A
80208A
41811A
40612A
80222A
40633A
40634A
85389A
980666
60976A
52557A
40631A
80186A
40592A
80221A
40630A
40629A
80179A
980614
30097A
40635A
980607
962980
30287A
52548A
30175A
40614A
40615A
40611A
40609A
980692
438360
80178A
80202A
60975A
41810A
40613A
46106A
40626A
80206A
980603
80169A
80199A
60265A
60977A
61084A
61332A
52562A
80196A
912216
43006A
77094A
71015A
17
18
19
20
21
12
13
14
15
16
22
23
24
25
31
32
33
34
26
27
28
29
30
4
5
6
7
8
1
2
3
9
10
11
40
41
42
43
44
35
36
37
38
39
45
46
47
48
49
50
51
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
Description Qty Qty
S17/20 L17/20
Screw, M6 x 1 x 15mm, Pan Head
Washer, Lock 1/4" Ext. Tooth
Insulator
6
12
1
6
12
1
Squeegee Switch
Washer, Lock #6 Ext. Tooth
Screw, 6-32 x 1, Pan Head
Strain Relief
Screw Tab
Squeegee Cam
Battery Charger, 115V, 50/60 Hz
Battery Charger, 230V, 50/60 Hz
Cord, Power Supply 115V
Cord, Power Supply 230V, European
Washer, Flat 5/16" SS
Squeegee Lift Spring
Shoulder Bolt, M6 x 8 x30mm
Screw, M5 x .8 x 15mm, Pan Head
Squeegee Cable
Screw, 3/8-16 x 5/8
Washer, 3/8" Ext. Tooth
Squeegee Lever
Squeegee Knob
Traverse Harness
Eyebolt, #10-24
Traverse Controller
Screw, M4 x .7 x 20mm, Pan Head
Main Harness, Traverse
Main Harness, Non-Traverse
Grommet, 8.5"
Screw, M5 x .8 x 20mm, Pan Head
Nut, M3 x .5, Nylock
Solenoid, Vacuum
Screw, M6 x 1 x 10mm, Pan Head
Contactor, Main
Red Battery Cable
Screw, M4 x .7 x 10mm, Pan Head
Relay, DPDT, 115V
Relay, DPDT, 230V
Contactor, Brush
Black Battery Cable
Rectifier
Terminal Block
Screw, M3 x .5 x 20mm, Pan Head
Washer, Lock #10 Ext. Tooth
Nut, M5 x .8 Hex
Nut, M6 x 1, Nylock
Nut Plate
Squeegee Lift Mount
Electrical Panel, Traverse
Electrical Panel, Non-Traverse
Strain Relief Bushing
Nut, M5 x .8 Nylock
Fuse, 15A
Fuse Holder
Label, Ground
Label, Gases & Chemicals
1
1
1
1
2
2
1
1
1
1
2
1
1
1
6
-
3
-
1
1
-
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
1
1
2
2
1
1
-
1
1
1
1
2
2
1
1
1
1
1
1
1
1
2
2
1
1
1
1
2
1
1
1
6
-
3
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
1
1
2
2
1
1
-
1
1
1
1
2
2
1
1
1
1
Page -39-
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Control Housing Assembly 5/05
Page -40 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Control Housing Parts List 5/05
13
14
15
16
9
10
11
12
Ref. # Part No.
1 962957
3
4
70352A
60979A
5
6
7
8
52555A
60978A
87036A
80196A
40597A
962330
30214A
50961A
80192A
30213A
980608
40126A
29
30
31
32
33
25
26
27
28
17
18
19
80191A
52556A
30220A
30228A
20 47380A
20B 55413A
21
22
80230A
87052A
23
24
41422A
41433A
41422A
41423A
80229A
40135A
980666
60259A
50962A
962262
70080A
83010A
Qty Qty Qty
Description S17/20 L17/20 L17 Cyl
Screw, 10-16 x 1/2"
Membrane Switch
6
1
6
1
6
1
Control Panel
Lever Gasket
Wear Plate
Washer, Flat #10
1
1
1
3
1
1
1
3
1
1
1
3
Nut, M5 x .8, Nylock
Panel Circuit Board
Screw, 6-32 x 3/8" Pan Head
Switch Lever
Spring, Switch
Screw, M5 x .8 x 16mm, Oval Head
Switch Housing
Washer, Flat #6
3
1
4
2
4
4
2
4
3
1
4
2
4
4
2
4
3
1
4
2
4
4
2
4
Switch Assembly
Screw, M3.5 x 6 x 10mm, Pan Head
Reverse Switch
Control Handle, Traverse
Control Handle, Non-Traverse
Key Switch
Key, Spare
Washer, Nylon
Washer, Key Switch
Circuit Breaker, 25A
Circuit Breaker, 40A
Circuit Breaker, 25A
Circuit Breaker, 5A
Arrow Clip, Nylon
Potentiometer Harness
Washer, Lock 3/8"
Potentiometer Retainer
Control Knob
Screw, Set 8-32 x 1/2" (included in #30)
Plate, Warning
Rivet, Pop
-
-
-
-
-
-
-
-
1
-
1
-
-
2
4
1
1
2
1
1
2
1
1
2
1
-
1
-
2
1
1
1
1
2
1
1
-
1
1
1
2
4
1
1
-
2
-
1
1
3
1
1
1
1
2
-
1
-
1
1
1
2
4
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -41-
15
14
7
16
11
17
8
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Squeegee Lift Assembly 5/05
1
2
3
4
12
11
10
9
8
6
5
7
5
13
Page -42 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Squeegee Lift Parts List 5/05
11
12
13
14
7
8
9
10
Ref. # Part No.
1
2
80196A
87036A
3
4
5
6
61305A
80199A
80198A
980652
15
16
17
80195A
87026A
61292A
61296A
980651
80194A
80101A
61461A
60256A
80197A
81104A
Description
Nut, M5 x .8, Nylock
Washer, Flat #10
Tube Bracket
Nut, M6 x 1, Nylock
Nut, M8 x 1.25, Nylock
Washer, Lock 5/16"
Screw, M6 x 1 x 20mm, Hex Head
Washer, Flat 1/4"
Pin Bracket
Squeegee Arm
Washer, Flat 5/16"
Screw, M8 x 1.25 x 30mm, Hex Head
Screw, 1/4-20 x 3 1/4"
Squeegee Swivel Spacer
Pivot Bracket
Screw, M8 x 1.25 x 20mm, Hex Head
Nut, 1/4-20 Nylock
1
1
2
1
1
1
4
2
Qty
1
1
2
1
1
2
1
1
1
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -43-
Page -44-
18
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
32" Squeegee Assembly 5/05
19
4
5
1
2
21
21
3
4
5
20
21
17
7
8
9
10
11
12
22
16
14
13
15
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
32" Squeegee Parts List 5/05
16
17
18
19
20
21
22
12
13
14
15
10
11
8
9
Ref. # Part No.
1 80252A
2
3
980657
60243A
6
7
4
5
30049B
81104A
60254A
50958A
30048A
60234A
50835A
930086
60232A
30067A
30047A
30066A
80011A
81301A
34260B
25201A
60358A
61370A
80280A
Description
Screw, ¼-20 x 1 Hex SS
Washer, ¼ Lock
Bracket, Squeegee Wheel
Wheel, Squeegee
Nut, ¼-20
Bolt, Shoulder 5 /
16 x 2¼
Ring, 3 /
8
ID Snap
Wheel, Guide, 4 Inch Diameter
Channel, Squeegee Weldment 32”
Latch, Squeegee Clamp
Rivet, 3/16 x .450 Aluminum
Strap, Clamp, Squeegee Retainer 32
Blade, Rear, Gum Rubber, 32”
Spacer, Squeegee 32
Blade, Front Ribbed 32”
Screw, 3 /
8
-16 x 3
Nut, 3 /
8
-16 Jam SS
Gasket
Knob
Shim, Squeegee Wheel
Weight, Squeegee
Nut, Squeegee Backup
1
1
1
1
1
2
2
1
2
2
4
2
Qty
4
4
2
2
4
2
1
2
2
2
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -45-
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Frame Assembly 5/05
34
24
12
24
35
32
33
12
36
12
31
37
12
31
1
12
2
1
12
31
4
1
2
5
3
16
7
1
8
9
18
17
19
21
20
2
15
12
11
10
1
2
12
15
22
11
10
13
14
23B
30
2
27B
12
24
12
29
38 28
27A
26
25
24
23A
Page -46 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 and 751
Frame Parts List 5/05
Ref. # Part No.
1 80199A
2 87026A
3 80204A
4 80225A
54179A
5 80196A
7 61077A
8 80164A
9 61075A
10 80165A
11 980651
12 980692
13 61592A
14 80173A
15 80195A
16 980614
17 61302A
18 47422B
19 80203A
20 59610A
21 51526A
52635A
22 30311A
23A 61455A
23B 61076A
24 80197A
25 57423A
26 87616A
27A 61436A
27B 61437A
28 980205
29 60289A
30 81104A
31 80198A
32 61079A
33 61460A
34 61073A
35 80223A
36 980645
37 80226A
38 980652
Description
Nut, M6 x 1, Nylock
Washer, Flat 1/4" SS
Nut, M3 x .5 Nylock
Spring, Front (1.25" long)
Spring, Front (2.25" long)
Nut, M5 x .8 Nylock
Rear Actuator Bracket
Shoulder Bolt, M5 x 6 x 20mm
Actuator
Shoulder Bolt, M6 x 8 x 12mm
Washer, Flat 5/16"
Washer, Flat 5/16" SS
Lift Bracket
Bolt, M6 x 1 x 65mm Hex Head
Screw, M6 x 1 x 20mm Hex Head
Washer, Lock 1/4" Ext Tooth
Static Strap
Switch, Wisker
Screw, M3- x 5 x 30mm Pan Head
Solution Valve
Hosebarb, 90°, 3/8 x 3/8
Hosebarb, 90°, 3/8 x 1/2
Hose
Axle, Non-Traverse
Transaxle
Screw, M8 x 1.25 x 20mm Hex Head
Snap Ring
Washer, Nylon
Wheel, Non-Traverse
Wheel, Traverse
Washer, 5/16" Fender
Transaxle Clamp
Nut, 1/4-20 ESNA SS
Nut, M8 x 1.25 Nylock
Head Bracket
Caster Assembly
Main Frame
Nut, M10 x 1.5 Nylock
Washer, Flat 3/8"
Spring, Rear (2" long)
Washer, Lock 5/16"
1
1
1
1
-
8
-
2
1
1
2
-
1
2
1
-
1
-
2
-
2
2
4
1
1 -
1
1
12 10
-
2
-
-
-
1
2
1
1
1
3
2
Qty Qty Qty Qty Qty
S17 L17 L17 Cyl S20 L20
5
7
6
17
6
17
5
7
6
17
1
1
-
2
-
2
1
1
-
2
1
1
-
2
1
1
1
1
-
2
1
2
1
1
2 2
18 18
1
1
1
1
1
2
1
1
1
1
1
2
2
18
1
1
1
1
1
2
2
18
1
1
2
18
1
1
1
2
1
1
-
3
2
1
1
2
1
-
1
10
-
-
-
-
1
2 -
2
2
4
-
12
1
1
-
-
2
1
-
1
-
2
-
2
-
-
1
10
-
1
-
-
2
1
1
1
3
2
1
1
1
1
8
8
-
2
-
1
1
1
1
1
1
8
8
-
2
-
1
1
1
1
1
1
8
8
-
2
1
1
2
1
1
1
1
8
8
-
2
-
1
1
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -47-
CLARKE TECHNOLOGY
Cylindrical Head Assembly 5/05
Page -48 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
NOTE: indicates a change has been made since the last publication of this manual.
CLARKE TECHNOLOGY
Cylindrical Head Parts List 9/05
Ref. # Part No.
Description Qty
1
2
3
4
5
80198A
980652
980692
80165A
980651
Nut, M8 x 1.25 Nylock
Washer, 5/16" Lock
Washer, 5/16" Flat SS
Shoulder Bolt, M6 x 8 x 12mm
Washer, 5/16" Flat
3
3
13
2
2
6
7
8
9
80199A
87026A
80196A
61306A
Nut, M6 x 1 Nylock
Washer, 1/4" Flat SS
Nut, M5 x .8 Nylock
Switch Bracket
8
8
2
1
10 80176A Screw, M5 x . 8 x 12mm Pan Hd 17
11 61080A Head Bracket
12 915082 Key, 3/16" Sq. X 3/4"
13 50436A Drive Pin
14 30230A Debris Tray
15 61286A Brush Shaft
1
2
4
1
2
16 ref.
See accessories page, cyl. brush 2
17 61398A Brush Spacer 2
18 61449A Door, L.H. Brush
19 52477A Clamping Knob
20 80180A Screw, M6 x 1 x 30mm Pan Hd
1
2
8
21 30545A Skirt, Brush Door
22 30209A Bumper, Brush Door
23 30208A Bumper, Belt Cover
24 30544A Skirt, Belt Cover
25 53399A Flange Bearing
2
2
2
2
4
26 80179A Screw, M6 x 1 x 15mm Pan Hd
27 61282A Cover L.H. Belt
28 80214A Screw, M6 x 1 x 12 Hex Head
29 980657 Washer, 1/4" Lock
30 61396A Motor Pulley
31 21058A Brush Housing
32 57994A Screw, M6 x 20mm, Hex Head
33 61397A Brush Pulley
34 52818A Drive Belt
35 80178A Shoulder Bolt, M6 x 8 x 30mm
1
4
2
2
2
4
1
2
10
2
36 59932A Front Wheel 2
37 80187A Bolt, M8 x 1.25 x 30mm Hex Hd.
3
38 80177A Shoulder Bolt, M6 x 8 x 60mm
39 61448A Roller Bracket
40 80208A Screw, M6 x 1 x 10mm Pan Hd
2
2
4
41 30049B Wheel, 1 x 2 x 5/16
42 30235A Bumper, Housing
43 61287A Bumper Retainer
45 61285A Motor Cover
46 61283A Door, R.H. Brush
4
1
1
1
1
47
48
61450A Cover, R.H. Belt
71017A Label, Moving Parts
49 782002 Clamp, Solution Tube
50 50248A Clamp, 3/8 Hose
51 10387A Solution Tube Assembly
52 61430A Motor
1
2
53 41602A Housing, Connector
54 41601A Contact, Connector
55 930113 Rivet, 1/8"
56 61288A Tray Rail
57 80158A Key, 1/8" Sq. x 1/2"
58 53182A Cap, Tube
59 80249A Screw, M5-.8 x 12 mm HH
60 962262 Screw, Set 8-32 x 1/4
4
4
3
1
2
1
2
1
2
2
2
2
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -49-
CLARKE TECHNOLOGY
SCRUBTEC 743 S, 743 L, 751 S and 751 L
Rotary Disk Head Assembly 5/05
Page -50 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 S, 743 L, 751 S and 751 L
Rotary Disk Head Parts List 5/05
22
23
28
29
30
31
24
25
26
27
32
33
34
35
Ref. # Part No.
5
6
7
8
1
2
3
4
9
10
11
12
13
18
19
20
21
14
15
16
17
20308A
980679
980210
980652
80197A
30216A
30607A
30217A
30599A
70667A
70897A
66550A
80224A
980643
920278
61289A
41602A
41601A
40591A
20014A
87026A
80199A
80165A
980651
80196A
61306A
980692
80249A
61078A
61593A
98451A
80184A
52515A
87036A
80227A
980645
80202A
80169A
77091A
Description Qty Qty
S17 L17
Housing, Connector
Contact, Connector
1
1
1
1
Brush Motor
Motor Shim
Washer, Flat 1/4"
Nut, M6 x 1 Nylock
1
1
2
2
2
2
1
1
Shoulder Bolt, M6 x 8 x 12mm
Washer, Flat 5/16"
Nut, M5 x .8 Nylock
Switch Bracket
Washer, Flat 5/16"
Screw, M5 x .8 x 12mm Hex Head
Motor Mount Bracket
Motor Mount Bracket -
2
2
3
1
2
2
1
-
1
2
2
3
1
2
2
Washer, Lock 7/16"
Bolt, M10 x 1.5 x 25mm Hex Head
Motor Adaptor
Washer, Flat 3/4"
Washer, Impeller
Washer, Lock 5/16"
Screw, M8 x 1.25 x 20mm Hex Head
Upper Brush Housing
Upper Brush Housing
Lower Brush Housing
Lower Brush Housing
Label, 17
Label, 20
Pin Assembly
Shoulder Bolt, M5 x 6 x 16mm
Washer, Flat
Nut, 1/2-20 SS Hex
Motor Cover Rod
Bearing Sleeve
Washer, Flat #10
Extension Spring
Washer, Flat 3/8"
Screw, M5 x .8 x 15mm, Pan Head
Nut, M5 x .8 Hex
Label, Moving Parts
1
1
1
1
1
2
1
2
1
2
2
-
1
-
1
-
1
1
1
1
1
1
1
4
4
1
2
-
1
1
1
1
1
1
2
2
-
1
-
1
-
1
1
1
1
1
1
1
4
4
2
2
1
1
1
1
1
1
1
1
1
1
1
1
4
4
1
2
-
1
1
1
1
1
1
1
1
2
2
3
1
2
2
2
2
1
1
Qty
S20
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
4
4
1
2
-
1
1
1
1
1
1
1
1
2
2
3
1
2
2
2
2
1
1
Qty
L20
1
1
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -51-
CLARKE TECHNOLOGY
SCRUBTEC 743 S, 743 L, 751 S and 751 L
Gearbox Assembly and Parts List 5/05
1
2
3
4
5
7
8
Ref # Part No. Description
1 57846A Ring, Snap
2
3
507641
52050A
Seal, Oil, Small
Cap End
7
9
4
5
56668A
51176A
902605
58144A
O-Ring
Bearing, Large
Bearing, Small
Seal, Oil Large
Qty
1
1
1
1
1
1
1
10 NI Darina EP2 Grease 4 oz.
11 52855A Complete Gearbox Asm. 1
Page -52 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 S, 743 L, 751 S and 751 L
Brush Motor Assembly and Parts List 5/05
Seam Location
13 7 12
15
5
6
4
1 2
3
14
16
12
17
11
8
9
10
13
* 14
15
16
17
10
11
12
13
6
7
8
9
Item
1
2
3
4
* 5
Part No.
Description
56478A Stator Frame Assembly (w/Magnets & Clips)
50142A Armature Assembly (w. B.E. & F.E. Bearings)
902654 Bearings B.E.
902550 Bearing F.E.
Commutator Bracket Assembly
(w/Brush BRD Assembly Leads)
50520A Commutator Bracket
56480A Strain Relief
962546 Brush Board Screw
50517A Brush Board Assembly (w/ Springs & Brushes)
448396 Brush Spring
40826A Brush Assembly
55657A Lead Assembly
55656A Lead Assembly
Helical Washer
50515A Thru Bolt
80501A Shaft Key
54238A B.E. Bracket Assembly (Gear Box)
Qty
1
1
1
1
1
1
2
2
1
1
1
2
1
1
4
4
* NOTE: Parts not available at this time.
1
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -53-
6
CLARKE TECHNOLOGY
Transaxle Drawing 5/05
BLK
4, 5
RED
1
3
2
3
4
5
6
Item
1
2
Part No.
Description
10135A Wheel Flange Kit
51056A Transaxle Mounting Sleeve
40593A Motor Brush
40594A Motor Urethane Sleeve
40595A Motor
40596A Transaxle Only
Specifications:
- Motor: 24VDC, Permanent Magnet, Tenv
- Transaxle: 30:1 Ratio
- Gear Oil: Mobile SHC634 12 oz.
Qty
2
2
1
1
2
1
Page -54 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 S, 751 S and 743 S C
Connection Diagram 5/05
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -55-
CLARKE TECHNOLOGY
SCRUBTEC 743 S, 751 S and 743 S C
Electrical Schematic 5/05
Page -56 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
CLARKE TECHNOLOGY
SCRUBTEC 743 L, 751 L and 743 L C
Connection Diagram 5/05
CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751 Page -57-
CLARKE TECHNOLOGY
SCRUBTEC 743 L, 751 L and 743 L C
Electrical Schematic 5/05
Page -58 CLARKE TECHNOLOGY Operator's Manual -SCRUBTEC 743 and 751
NOTE S
CORPO
HEADQUARTERS
Nilfisk-Advance Group
Sognevej 25
2605 Brøndby
Denmark
Tel: (+45) 43 23 81 00
SUBSIDIARIES
ALTO
48 Egerton St.
PO Box 6046
Silverwater NSW 2128
Australia
Tel: (+61) 2 8748 5966
Fax: (+61) 2 8748 5960
ALTO Österreich GmbH
Nilfisk Advance AG
Metzgerstrasse 68
5101 Bergheim/Salzburg
Austria
Tel: (+43) 662 456 400 11
Fax: (+43) 662 456 400 34
E-mail: [email protected]
www.-alto.at
Wap do Brasil Ltda.
Rua das Palmeiras,
350-Bairro Capela Velha
83.705-500 - Araucária - Paraná
Brasil
Tel: (+55) 41 2106 7400
Fax: (+55) 41 2106 7403/7404
E-mail: [email protected]
ALTO Canada
24 Constellation Road
Rexdale
Ontario M9W 1K1
Canada
Tel: (+1) 416 675 5830
Fax: (+1) 416 675 6989
ALTO Ceskà republika s.r.o.
Zateckých 9
14000 Praha 4
Czech Republic
Tel. (+420) 24 14 08 419
Fax (+420) 24 14 08 439
E-mail: [email protected]
ALTO
Division of Nilfisk-Advance A/S
Industrivej 1
9560 Hadsund
Denmark
Tel: (+45) 72 18 21 00
Fax: (+45) 72 18 21 05
E-mail: [email protected]
E-mail:[email protected]
www.-alto.dk
ALTO Food Division
Division of Nilfisk-Advance A/S
Blytækkervej 2,
9000 Aalborg
Denmark
Tel: (+45) 72 18 21 00
Fax: (+45) 72 18 20 99
E-mail: [email protected]
www.-alto.com
ALTO France SA
Aéroparc 1
19 rue Icare
67960 Entzheim
France
Tel: (+33) 3 88 28 84 00
Fax: (+33) 3 88 30 05 00
E-mail: info@-alto-fr www.-alto.com
ALTO
Division of Nilfisk-Advance A/S
Guido-Oberdorfer-Str. 2-8
89287 Bellenberg
Germany
Tel: (+49) (0) 730 67 20
Fax: (+49) (0) 730 67 23 10
E-mail: [email protected]
www.-alto.de
ALTO
Division of Nilfisk-Advance Ltd.
Bowerbank Way
Gilwilly Industrial Estate
Penrith Cumbria CA 11 9BQ
Great Britain
Tel: (+44) 1 768 86 89 95
Fax: (+44) 1 768 86 47 13
E-mail: [email protected]
www.-alto.co.uk
ALTO Hungary Kft
Csengery ut. 119
8800 Nagkanizsa
Hungary
Tel: (+36) 93 509 701
Fax: (+36) 93 509 704
ALTO DEN-SIN Malaysia Sdn Bhd
SD14, Jalan KIP 11
Taman Perindustrian KIP
Sri Damansara
52200 Kuala Lumpur
Malaysia
Tel: (+603) 6274 6913
Fax: (+603) 6274 6318
E-mail: [email protected]
ALTO Nederland B.V.
Camerastraat 9
1322 BB Almere
The Netherlands
Tel: (+31) 36 5460 756
Fax: (+31) 36 5460 700
E-mail: [email protected]
Postbox 60112
1320 AC Almere
The Netherlands
ALTO Norge AS
Bjørnerudveien 24
1266 Oslo
Norway
Tel: (+47) 22 75 17 70
Fax: (+47) 22 75 17 71
E-mail: [email protected]
www.-alto.no
ALTO DEN-SIN
Singapore Pte. Ltd.
No. 17 Link Road
Singapore 619034
Singapore
Tel: (+65) 6268 1006
Fax: (+65) 6268 4916
Web: www.densin.com
E-mail: [email protected]
ATLO
Division of Nilfisk-Advance S.A.
Torre D'Ara
Paseo del Rengle, 5 Pl. 10
08302 Mataró Barcelona
Spain
Tel: (+34) 93 741 24 00
Fax: (+34) 93 757 80 20
E-mail: [email protected]
www.-alto.com
ALTO Sverige AB
Aminogatan 18, Box 40 29
431 04 Mölndal
Sweden
Tel: (+46) 31 706 73 00
Fax: (+46) 31 706 73 41
E-mail: [email protected]
www.-alto.se
ALTO U.S. Inc.
2100 Highway 265
Springdale
Arkansas 72764
USA
Tel: (+1) 479 750 1000
Fax: (+1) 479 756 0719
E-mail: [email protected]
ALTO U.S. Inc.
1100 Haskings Road
Bowling Green
Ohio 43402
USA
Tel: (+1) 419 352 7511
Fax: (+1) 419 353 7187
E-Mail: [email protected]
ALTO Cleaning Systems Inc.
12249 Nations Ford Road
Pineville
North Carolina 28134
USA
Tel: (+1) 704 971 1240
Fax: (+1) 704 971 1241
E-mail: [email protected]
www.-alto.com
CLARKE TECHNOLOGY LIMITED U.S. WARRANTY
This Clarke Technology Industrial/Commercial Product is warranted to be free from defects in materials and workmanship under normal use and service, when operated and maintained in accordance with Clarke Technology's Maintenance and
Operations instructions. The warranty period is subject to the conditions stated below.
3 YEARS FOR PARTS AND 1 YEAR FOR SERVICE LABOR (See exceptions below)
Motors must be inspected for carbon motor brush wear at six-month intervals by an authorized Clarke Technology repair station. Failure to comply with the six-month inspection requirement or failure to replace worn motor brushes identified during the inspection will void the warranty on the motors. Cost of the six-month inspection and replacement of carbon motor brushes is the responsibility of the purchaser. In the event of a warranty claim on the motors, proof of inspection and any required motor brush replacement must be provided. This warranty is extended only to the original purchaser for use of the product. It does not cover normal wear parts such as electrical cable, rubber parts, hoses and motor brushes.
BATTERY WARRANTY
In addition to the items above, any original equipment Clarke Technology Battery which becomes unserviceable under normal use within a period of ninety (90) days from date of sale to the original user will be repaired or replaced with one of equal specification at our option, F.O.B. any authorized Clarke Technology Sales or Service Branch, with no charge to the user, except transportation costs. After expiration of the above ninety (90) day period, any battery which fails under normal use will be adjusted to the original user with a new battery of equal specification on an eighteen (18) months pro rate basis from the date of purchase. Adjustment will be determined using the then current list price, plus transportation costs.
Warranty is rendered null and void if battery is not kept filled to the proper level with DISTILLED WATER.
CLARKE TECHNOLOGY: POLYDUR ® AUTOMATIC SCRUBBER SOLUTION AND RECOVERY TANK EIGHT-YEAR
U.S. GUARANTEE
Your new Clarke Technology machine has polydur Solution and Recovery Tanks. Polydur is a rotationally molded, lowdensity linear polyethylene that won't crack or dent, and withstands most corrosives and temperature extremes. Clarke
Technology backs up your Polydur tanks with an eight-year guarantee. If a tank breaks or leaks under normal use within eight years of the date of purchase, it will be replaced free.
CLARKE TECHNOLOGY UNIBODY FRAME EIGHT-YEAR U.S. WARRANTY
Clarke Technology warranties the frame for a period of eight years against defects in materials and workmanship under normal use and service.
STATED WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED
Clarke Technology's liability under this warranty is limited to repair of the product and/or replacement of parts and is given to purchaser in lieu of all other remedies, including INCIDENTAL AND CONSEQUENTIAL DAMAGES.
THERE ARE NO EXPRESS WARRANTIES OTHER THAN THOSE SPECIFIED HEREIN. THERE ARE NO WARRANTIES WHICH
EXTEND BEYOND THE DESCRIPTION OF THE FACE HEREOF. NO WARRANTIES, INCLUDING BUT NOT LIMITED TO WARRANTY
OF MERCHANTABILITY, SHALL BE IMPLIED. A warranty registration card is provided with your Clarke Technology product.
Return the card to assist Clarke Technology in providing the performance you expect from your new floor machine.
If a difficulty develops with the product, you should: a) Contact the nearest authorized Clarke Technology repair location or contact the Clarke Technology Service Operations Department, 2100 Highway 265, Springdale, Arkansas 72764, for the nearest authorized Clarke Technology repair location. Only these locations are authorized to make repairs to the product under this warranty. (b) Return the product to the nearest Clarke Technology repair location. Transportation charges to and from the repair location must be prepaid by the purchaser. Clarke Technology will repair the product and/or replace any defective parts with out charge within a reasonable time after receipt of the product.
ALTO, 2100 Highway 265, Springdale, Arkansas 72764.
ALTO reserves the right to make changes or improvements to its machine without notice.
Always use genuine ALTO Parts for repair.
2100 Highway 265
Springdale, Arkansas, 72764
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Table of contents
- 3 perator Safety Instructions
- 4 Machine Introduction
- 5 Machine Specifications
- 7 Procedures for Transporting Machine
- 9 Symbols Used on Machine
- 11 Machine Control Panel
- 13 Machine Controls and Features
- 14 How to Prepare the Machine for Operation
- 14 How to Install the Batteries
- 16 Battery Maintenance
- 17 How to Charge the Batteries
- 18 How to Install a Rotary Brush or Pad Driver
- 19 How to Remove a Rotary Brush or Pad Driver
- 19 How to Change or Rotate Cylindrical Brushes
- 20 How to Operate the Machine
- 20 How to Operate the Squeegee
- 20 Filling the Solution Tank
- 20 Operating the Machine
- 21 How to Clean a Dirty Floor
- 22 Maintenance
- 22 Procedures Before Work is Begun
- 23 Procedures to Perform at the End of Work
- 25 Procedures to Perform Every Week
- 26 Maintenance for the Squeegee
- 26 How to Adjust the Squeegee
- 27 Accessories
- 28 How to Correct Problems in the Machine
- 30 Final Assembly
- 31 Parts List
- 32 Recovery Tank Assembly
- 33 Parts List
- 34 Solution Tank Assembly
- 35 Parts List
- 36 Electrical Assembly
- 37 Parts List
- 38 Control Housing Assembly
- 39 Parts List
- 40 Squeegee Lift Assembly
- 41 Parts List
- 42 Squeegee Assembly
- 43 Parts List
- 44 Frame Assembly
- 45 Parts List
- 46 Cylindrical Brush Head Assembly
- 47 Parts List
- 48 Rotary Disk Head Assembly
- 49 Parts List
- 50 Gearbox Assembly and Parts List
- 51 Brush Motor Assembly and Parts List
- 52 Transaxle Repair Parts
- 53 SCRUBTEC 743 S, 751 S, 743 S C Connection Diagram
- 54 SCRUBTEC 743 S, 751 S, 743 S C Electrical Schematic
- 55 SCRUBTEC 743 L, 751 L, 751 L C Connection Diagram
- 56 SCRUBTEC 743 L, 751 L, 751 L C Electrical Schematic