Clarke PB-12 Operator's Manual

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PB-12

Operator's

Power Brush

Manual

READ THIS BOOK

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 Clarke
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
cannot read English, have this manual 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 U.S. Inc., 2100 Highway 265, Springdale, Arkansas 72764.

For Extraction

Form No. 78010C 1/02 CLARKE TECHNOLOGY Printed in the U.S.A.

Table of Contents

Operator Safety Instructions ............................................................................................................. 3

Introduction ...................................................................................................................................... 4

How To Assemble The Machine ........................................................................................................ 5

Machine Controls .............................................................................................................................. 7

How to Prepare The Machine for Operation .................................................................................... 7

How to Adjust the Brush .........................................................................................................7

How to Connect the Hoses ..................................................................................................... 8

How to Adjust the Handle ........................................................................................................8

Instruction for Connection to the Power Supply and Electrical Ground .................................. 9

How to Operate the Machine .......................................................................................................... 11

Maintenance of Machine ................................................................................................................. 11

How to Remove the Brush ................................................................................................. 11

How to Install The Brush .................................................................................................... 12

How to Remove the Brush Drive Belt ................................................................................ 12

How to Install the Brush Drive Belt .................................................................................... 13

How to do Maintenance After Each Use of Machine .......................................................... 13

Upper Unit Drawing .......................................................................................................................... 16

Parts List ............................................................................................................................. 17

Lower Unit Drawing ......................................................................................................................... 18

Parts List ............................................................................................................................ 19

Wiring Diagram 120V ...................................................................................................................... 20

Wiring Diagram 230V ...................................................................................................................... 21

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 2

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 your Owner's Manual and on your 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 your
Owner's Manual and on your 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 our Owner's Manual and on your
machine.

DANGER: Failure to read the Owner's Manual prior to operating or attempting any service or

maintenance procedure to your 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 English, have this manual 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 until 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.

DANGER: Using a machine with a damaged power cord could result in an electrocution. Do

not use the machine if the power cord is damaged. To prevent damage to the
power cord, do not move this machine over the power cord. Always lift the power
cord over the machine. Do not use the electrical cord to move the machine.

DANGER: Electrocution could occur if maintenance and repairs are performed on a unit that

is not disconnected from the power source. Disconnect the power supply before
attempting any maintenance or service.

DANGER: Electrocution or fire could occur if the machine is used on a power circuit that

repeatedly trips or is undersized. Have a licensed electrician check the fuse,
circuit breaker or power supply, and/or contact your local Clarke distributor for
assistance.

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: 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.

WARNING: Any alterations or modifications of 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.

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 3

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 plates from your Clarke distributor.

WARNING: Always use a three-wire electrical system connected to the electrical ground. For

maximum protection against electric shock, use a circuit that is protected by a ground
fault circuit interrupter. Consult your licensed electrician and/or contact your local Clarke
distributor for assistance.

WARNING: To reduce risk of electric shock, use only on carpet moistened by cleaning process. Do

not immerse. Protect the machine from rain. Keep the machine in a dry building.
Always clean the machine with a clean dry cloth.

WARNING: Do not use water that is hotter than 140°F. It could damage the machine.

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. Also, city and state regulations regarding this
discharge may 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.

Model PB-12 04016B 04017B 04087A

115V 230V 230V

Dimensions 17.75" (45.1 cm) Long

16.75" (42.5 cm) Wide

8.78" (22.5 cm) High (Base)
Weight 60 lbs. 60 lbs.
Shipping Weight 66 lbs. 70 lbs.
Noise (dBA)
Vibration

(m/s/s)

45 cm long
43 cm wide (base)

23 cm high

< 70
< 2.5

INTRODUCTION

Model PB-12 Power Brush Tool

NOTE: In this book, "machine" and "power brush tool" mean the Model PB-12. "Extractor" means another
machine that gives the solution and vacuum.

NOTE: When using the PB-12 and the extractor to clean carpets, follow this procedure.

1. Do not walk on freshly cleaned carpets for at least four hours or until the carpet is dry to touch.

2. Do not remove aluminum or plastic pieces that have been placed under the legs of the furniture until the
carpet is dry.

3. Do not allow children or pets to crawl or walk around on the damp carpet.

4. Vacuum right after the carpet is dry and then vacuum the carpet once a week or as needed.

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 4

How To Assemble The Machine

To assemble the machine, follow this procedure:

1. Put the machine on a bench.

2. Put the brush adjusting lever in the unlock position.
See figure 1

3. Lift the cover.

4. Remove the pivot pin from the plastic bag.

5. Put the handle in position. See figure 2

6. From the inside of the machine, slide the pivot pin
through the handle tube tongue and the main
frame. See figure 3.

Figure 1

7. Close the cover. Put the lever in the locking
position.

8. Install the cotter pin. See figure 4.

9.Remove the locking cam from the plastic bag.

Figure 2

Figure 3

Figure 4

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 5

How To Assemble The Machine (cont)

10. Remove the nut and one plain washer from the
locking cam. Leave one plain washer on the
locking cam. See figure 5

11. Raise the handle and align the holes.
See figure 6.

12. Insert the cam through the link arms and the
handle tube clamp. See figure 7.

13. Install the washer and the locking nut.

Figure 5

14. Install the solution hose around the outside of the
handle to the fitting on the handle tube.
See figure 8.

15. Install the vacuum hose. See figure 9.

Figure 6

Figure 7

Figure 9

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 6

Figure 8

THE CONTROLS

The lever on the right side of the handle starts and stops the
brush motor and applies the solution.

The lever on the left side of the handle starts and stops the
brush motor.

The lever on the right side of the housing raises and lowers the
brush. See figure 10.

The lever on the lower part of the handle locks the handle.
See figure 11.

The solution and brush indicator lights are on the front of the
handle assembly.

Figure 10

HOW TO PREPARE THE MACHINE FOR OPERATION

NOTE: For instructions for preparation and operation of your tank

extractor, read the operator's manual given with your tank extractor.

How To Adjust The Brush

The machine has seven brush settings. The adjustment lever is on
the right side of the housing. See figure 12.

To set the brush height, follow this procedure:

1. Place your foot behind one wheel.

2. Pull the adjustment lever out of the detent.

3. Put the adjustment lever in the "HIGH" setting.

4. Move the lever toward the "LOW" setting.

5. When the brush comes in contact with the carpet, push the
adjustment lever in the detent.

CAUTION: Be careful when cleaning long shag. The carpet

can go around the brush, and slow and stop the

Figure 11

1. The Lever 2. The Settings

Figure 12

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 7

How To Prepare The Machine For Operation (cont)

How to Connect the Hoses

The hoses for the solution and vacuum are provided with
the tank extractor.

Connect the vacuum hose to the hose connector on the
extractor and to the hose connector on the power brush
tool.

The solution hose has quick-disconnect couplings. To
connect the solution hose to the extractor, follow this
procedure:

1. Pull the knurled collar back.

2. Put the coupling over the fitting on the handle assembly.

3. Release the knurled collar.

See figure 13

Figure 13

How To Adjust The Handle

To adjust the handle, follow this procedure:

1. The locking lever is on the lower part of the handle tube.
Lift the lever with your foot.

2. Lower the handle to the best operating position.

NOTE: For best operation, raise the handle until the

wheels are just above the floor. Keep your back
straight.

3. Using your foot, push the locking lever down. See figure

Figure 14

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 8

120 VOLT, 50/60 CYCLE MACHINES

INSTRUCTIONS FOR CONNECTION

TO THE POWER SUPPLY

AND THE ELECTRICAL GROUND

This product must be grounded. If it should malfunction or
breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock. This
product is equipped with a cord having an equipment-ground­ing conductor and grounding plug. The plug must be inserted
into an appropriate outlet that is properly installed and
grounded in accordance with all local codes and ordinances.

WARNING: Improper connection of the equipment-

grounding conductor can result in a risk
of electric shock. Check with a qualified
electrician or service person if you are
in doubt as to whether the outlet is prop­erly grounded. Do not modify the plug
provided with the product - if it will not
fit the outlet, have a proper outlet in­stalled by a qualified electrician.

This product is for use on a nominal 120 volt circuit and has a
grounding attachment plug that looks like the plug illustrated in
Fig. 15. Make sure that the product is connected to an outlet
having the same configuration as the plug. No adaptor should
be used with this product.

GROUND PIN

PLA TE
SCREW

OUTLET

MUST BE

CONNECTED

TO THE

ELECTRICAL

GROUND

Figure 15

This machine is intended for commerical use.

For maximum protection against electric shock, use a circuit
that is protected by a ground fault circuit interrupter. The
green (or green and yellow) conductor in the cord is the
ground wire. Never connect this wire to any terminal other
than the ground terminal.

WARNING: To prevent possible electric shock, pro-

tect the machine from rain. Keep the
machine in a dry building.

WARNING: To prevent possible electric shock, al-

ways use a 3-wire electrical system con­nected to the electrical ground. For maxi­mum protection against electrical shock,
use a circuit that is protected by a ground
fault circuit interrupter. Consult your
electrical contractor.

WARNING: Do not cut, remove or break the ground

pin. If the outlet does not fit the plug,
consult your electrical contractor.

WARNING: Have worn, cut, or damaged cords and

plugs replaced by an authorized service
person.

EXTENSION CORDS

Use only an approved extension cord with three conductors, a
plug with three terminals, and a connector body with three holes.
The machine has a power cord with wire size 14 AWG (AWG
means American Wire Gauge).

WARNING: If you use an extension cord,

use an extension cord with
minimum wire size 14 AWG.
Do not use an extension cord
longer than 50 feet. Do not
join two extension cords.

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 9

230 VOLT MACHINES

INSTRUCTIONS FOR CONNECTION

TO THE POWER SUPPLY

AND THE ELECTRICAL GROUND

CAUTION: This machine will operate only on AC fre-

quency and electrical voltage shown on
the nameplate. Make sure you have the
correct frequency and voltage before con­necting the power cord to an outlet.

This product must be grounded. If it should malfunction or
breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock. This
product is equipped with a cord having an equipment­grounding conductor and grounding plug. The plug must be
inserted into an appropriate outlet that is properly installed
and grounded in accordance with all local codes and
ordinances. See figure 16

PIN EARTHING CONTACT

EUROPEAN PLUG

SIDE EARTHING CONT ACT

WARNING: Improper connection of the equipment-

grounding conductor can result in a risk
of electric shock. Check with a qualified
electrician or service person if you are
in doubt as to whether the outlet is prop­erly grounded. Do not modify the plug
provided with the product - if it will not fit
the outlet, have a proper outlet installed
by a qualified electrician.

This product is for use on a nominal 230 volt circuit and has
a grounding attachment plug that looks like the plug illus­trated in Fig. 16. Make sure that the product is connected to
an outlet having the same configuration as the plug. No
adaptor should be used with this product.

This machine is intended for commerical use.

This machine must be connected to the electrical ground to
protect the operator from electrical shock. The machine has a
power cord with two main conductors and one earthing con­ductor. Connect the plug to the receptacle. The green and
yellow conductor in the cord is the ground wire. Never connect
this wire to any terminal other than the ground terminal.

WARNING: Always use this machine with an AC three-

conductor electrical system connected to
the electrical ground. Replace any worn,
cut or damaged cords. Replace any dam­aged plugs, receptacles, or connector bod­ies. Do not move the machine over an elec­trical cord. Always lift the cord over the
machin

e.

EXTENSION CORDS

Use only an approved extension cord with two main conduc­tors and one earthing conductor. The machine has a power
cord with wire size 1.5mm2.

Figure 16

WARNING: If you use an extension cord, use an

extension cord with minimum wire size

1.5mm2. Do not use an extension cord
longer then 15 meters. Do not join two
extension cords.

WARNING: Do not cut, remove or break the ground

terminal. Do not try to fit a three-termi­nal plug into a receptacle or connector
body that does not fit the plug. If the
receptacle or connector body does not
fit the plug, see your authorized Clarke
dealer to get an authorized person to
make the connection.

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 10

HOW TO OPERATE THE MACHINE

CAUTION: To prevent damage to the power

cord, do not let the brush touch
the power cord when the machine
is running. Always lift the power
cord over the machine.

To operate the machine, follow this procedure:

1. Start the pump for the solution, and the motor for
vacuum on the extractor.

2. Apply pressure to the lever on the right side of
the handle to start the brush and apply the
solution.

3. To start the brush motor, apply pressure to the
lever on the left side of the handle.

4. Raise the handle until the wheels are just above
the carpet.

5. Pull the machine backward at a steady speed of
approximately 30 feet per minute.

6. To make sure all of the solution is removed from
the carpet, release the solution lever one foot
before you stop moving backward.

7. Release the lever for the brush motor when you
stop the machine.

CAUTION: To prevent damage to the carpet,

do not clean an area more than
two times unless you let the car­pet dry first.

MAINTENANCE OF THE MACHINE

How To Remove The Brush

To remove the brush, follow this procedure:

1. Disconnect the electrical plug from the electrical
outlet.

2. Put the machine on a bench.

3. Put the brush adjusting lever in the unlock posi­tion. See figure 17.

CAUTION: Be careful not to damage the

hoses that enter the back of the
machine when you lift and lower
the cover.

4. Lift the cover of the machine.

5. Turn the machine so that the right side is up.

6. Remove the two screws that fasten the brush.

7. Remove the brush.

Figure 17

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 11

MAINTENANCE (cont)

How To Install The brush

CAUTION: Keep all fadteners tight. Keep adjust-

ments according to specifications.

To install the brush, follow this procedure:

1. Put the two pins on the brush housing plate in the
two holes in the brush end plate. See figure 18

2. Make sure the shaft assembly is in position. See
figure 19.

3. Install the two screws that fasten the brush.

4. Lower the cover if the machine.

5. Put the brush adjustment lever in the locking posi­tion.

How to Remove The Brush Drive Belt

To remove the brush drive belt, follow this procedure:

Figure 18

1. Disconnect the elctrical plug from the electrical out­let.

2. Put the machine on a bench.

3. Release the handle.

4. Turn the machine so the right side is up.

5. Loosen the four screws that hold the motor.

6. Slide the motor toward the front of the machine.

7. Put the brush adjusting lever in the unlock position.

8. Lift the cover.

9. Remove the two screws that fasten the brush.

10.Remove the brush.

11. Remove the three screws that hold the belt guard.
See figure 20.

12. Remove the belt guard.

13. Turn the machine so that the left side is up.

14. Remove the two pins from the brush housing plate.

15. Remove the plate.

16. Remove the bolt that holds the pulley.

17. Remove the pulley and the belt.

Figure 19

Figure 20

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 12

How to Install The Brush Drive Belt

To install the brush drive belt, follow this procedure:

1. Turn the machine so that the left side is up.

2. Put the belt on the pulley.

3. Make sure the spacer is in position between the out­side frame and the pulley. See figure 21.

4. Install the pulley.

5. Install the bolt that holds the pulley. See figure 22.

6. Install the belt guard with the three holding screws.

7. Turn the machine so that the right side is up.

8. Install the brush with the two screws that hold the
brush.

9. Install the belt on the pulley on the motor.

10. Install the belt, slide the motor toward the back of the
machine. The tension of the belt is corrrect when the
belt is tight but not extended.

11. Tighten the four screws that hold the motor.

12. Close the cover.

WARNING: To prevent electrical shock, always

disconnect the electrical plug from
the electrical outlet before doing any
repair or maintenance to this ma­chine.

Figure 21

WARNING: Maintenance and repairs must be

done by authorized personnel only.

After each use of the machine, follow this procedure:

1. Flush the solution system with clean water from
the extractor.

2. Disconnect the solution hose and the vacuum hose
from the machine.

3. Drain the solution system. To drain the solution
system, press the pin in the male connector. Apply
pressure to the brush and solution lever.

4. Disconnect the plug from the electrical outlet. For
storage, put the electrical cord around the cord hook
and the top of the handle.

5. Use a stick of wood approximately six inches long
to remove the carpet fibers and objects caught un­der the brush housing.

6. Wipe the machine with a dry cloth.

7. Check the objects in the vacuum opening. Use a
stick to remove any objects caught under the brush
housing. See figure 23

8. Check for leaks at all connections.

Figure 22

Figure 23

CAUTION: To prevent damage to the spray jet,

do not push a wire or other object
through the opening in the jet.

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 13

MAINTENANCE (cont)

9. Check the spray jet. If the spray jet is not working,
follow this procedure.

a. Remove the jet from the machine.

b. Put the jet into a solution of ammonia and water.

c. Blow compressed air through the jet.

d. Install the jet on the machine.

10. Use a dry cloth to wipe the machine.

11. Apply a small amount of silicone lubricant to the quick-

disconnect fittings on the brush adjustment lever.

12. Every three months, apply a drop of light oil to the handle

pivot and the axles of the wheels.

Electrical

WARNING: Electrical repairs must be done by au-

thorized personnel only.

WARNING: After electrical repairs are done to the

machine, the machine must be tested
for electrical safety.

For electrical repairs, return this machine to a Clarke
Authorized Repair Center.

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 14

NOTES

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 15

CLARKE TECHNOLOGY Model PB-12

Upper Unit Drawing 1/02

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 16

CLARKE TECHNOLOGY Model PB-12

Upper Unit Parts List 1/02

Ref. Part No. Description Qty.

1 16702A Lever Assembly - Switch 1
2 16700A Lever Assembly - Switch 1
3 446760 Pin - Pivot 2
4 962936 Screw- #13-16 x ¾ HiLo 9
5 446860 Plug - Rubber 1
6 37400A Plug 1
7 35233A Cover, Housing Switch, Rear 1
8 38002A Strain Relief 1
9 980603 Washer, #10 Shake 2
10 962929 Screw, #10-32 x
11 42231A Cord, Power, 35' 1

42214A Cord, Power, 35' 1
12 442060 Clamp, Cord 1
13 962954 Screw, 8-18 x 7/8 HiLo 2
14 768340 Spring 2
15 500241 Adapter, Switch 2
16 61102A Bracket, Switch 1
17 911690 Switch 2
18 49000A Wire, Assembly, Jumper 2
19 84807A Screw, 6-32 x 15/8 2
20 49603B Harness Assembly, Handle 1
21 737140 Nipple, Quick-Disconnect 1
22 727595 Reducer, Brass 1
23 64325A Hook, Cord 1
24 930005 Rivet, 1/8 Pop 2
25 449061 Tube, Handle Support 1
26 35232A Housing, Switch Front 1

3

/8 Pn Hd 2

Ref. Part No. Description Qty.

27 925600 Pin, ¼ x 17/8 1
28 911933 Terminal, Ring 1
29 73267B Lab el, Switch Housing 1
30 44101A Lamp Indicator - 220V 1

44100A Lamp Indicator - 120V 1
31 920248 Nut, 3/8 - 16 Lock 1
32 980645 Washer,
33 440302 Arm Link LH 1
34 962891 Screw,
35 980652 Washer,
36 19300A Tube Assembly, Handle 1
37 743381 Fitting 1
38 442001 Clamp, Handle Tube 1
39 15600A Hose, Assembly 1
40 509240 Tongue, Handle Tube 1
41 747553 Strain, Relief 1
42 920110 Nut,
43 67400A Shaft, Link Arms 1
44 440301 Arm, Link RH 1
45 980349 Washer, Wear 1
46 441301 Bolt, Locking Cam 1
47 925592 Pin, ¼ x 1" Lg. Groove 1
48 461404 Cam, complete Locking 1
49 925036 Pin, Cotter 3
50 66500A Pin, Handle, Tongue, Pivot 1
51 47711A Terminal, .25 FIFQDC 2
NI* 899254 Tie, Wire 1

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

3

/8 Plain 1

5

/16 - 18 x 2.0 Hx 2

5

/16 Lock 2

5

/16 - 18 ESNA 2

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 17

CLARKE TECHNOLOGY Model PB-12

Lower Unit Drawing 1/02

84

7

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 18

CLARKE TECHNOLOGY Model PB-12

Lower Unit Parts List 1/02

Ref. Part No. Description Qty.

1 35105B Hose Vac 1
2 635139 Label, Warning 1
3 215104 Label, Warning 1
4 215103 Label, Caution 1
5 305160 Label, Inspection 1
6 NI Label, Serial 1
7 77376A Label, Clarke Technology 1
8 962957 Screw, ¼-20 x ½ Pn St HiLo 8
9 352030 Housing, Outer 1
10 962098 Screw, ¼-20 x ¾ FL ST 2
11 925004 Pin, 1/16 Cotter 1
12 67101A Rod, Cam 1
13 606640 Plate, Cam Rod 1
14 31202A Bumper, 12" 1
15 930074 Rivet, 1/8 Dia. Pop 3
16 930124 Rivet, 3/16 x .59 Lg. 4
17 34201A Gasket, Shoe 12" 1
18 67600A Shoe, 12" 1
19 628382 Spring, Rod Return 1
20 980646 Washer, ¼ Plain 1
21 612050 Clamp, Cam Rod 2
22 439760 Wheel, 5" Dia. 2
23 15600A Hose, Assembly Ref
24 59700A Valve, Solenoid 220V 1

59735A Valve, Solenoid 120V 1
25 57200A Pulley, Motor 1
26 81600A Nut, ¼-20 Speed 4
27 53600A Elbow, 1/8 St. 45 1
28 15601B Hose Assembly 1
29 50900A Belt Gear 1
30 67401A Shaft, Wheel Axle 1
31 877307 Ring, Snap 2
32 962954 Screw, #10-16 x 1 HiLo 4
33 761140 Bushing, Snap 1
34 701130 Bushing, snap 1
35 63400B Frame, Main 12" 1
36 962015 Screw, #10-24 x 3/8 Pan Hd. 4
37 962968 Screw, #10-24 x ½ Pan Hd. 2
38 980603 Washer, #10 Shake 4
39 962929 Screw, #10-32 x 3/8 Pan Hd. 2
40 696614 Plate and Shaft Assembly 1
41 962557 Screw, ¼-20 x ¾ Hx Hd. 4
42 920068 Nut, #10-24 1
43 53601A* Elbow, 90
44 36500B Manifold, 12" Asm. 1

°

1*

Ref. Part No. Description Qty.

45 68347A* Tube, with/Caps 1 *
46 980195 Washer, Wave 1
47 743650 Guard, Thread 1
48 747650 Seal, Brush Roller 1
49 740250 Adapter, Brush Bearing 1
50 915012 Key, 3/32 x ½ 1
51 467308 Ring, Retaining 1
52 902567 Bearing 1
53 747522 Race, Brush Bearing 1
54 56253A* Nozzle, Spray 3*
55 60703A Brush, 12" 1
56 34100A Guard, Pulley 1
57 962799 Screw, ¼-20 x 3/8 Soc. Hd. 2
58 746654 Plate, Brush Drive 1
59 962801 Screw, #10-24 x 1 Fit Hd. 3
60 747851 Shield, Pulley 1
61 696902 Pulley, Brush 1
62 920256 Nut, 5/16 -18 Hex 1
63 980651 Washer, 5/16 Plain 1
64 980202 Washer, Wave 1
65 748150 Sleeve, Bearing 1
66 902658 Bearing, Brush Pulley 2
67 747350 Ring, Retaining 1
68 67800A Spacer 1
69 962324 Screw, 5/16 -18 x 1½ Hx. Hd. 1
70 48500A Tubing 1
71 962507 Screw, #10-24 x 3/8 Rd. St. 1
72 170637 Clamp, Wiring 1
73 954002 Wire Assembly, Ground 1
74 44643A Motor, 120/230V 1
75 816181 Sleeving (included on 49603B) 1
76 920200 Nut, #10-24 Hex 1
77 73225A Label, Brush Adjust 1
78 962268 Screw, Set 8-32 x 5/16 1

(comes w/pulley(57200A)
79 980982 Washer 8
80 51809A* Clamp 2*
81 53955A* Flange, Clamp 2 *
82 962823* Screw 2 *
83 56459A Strain, Relief 1
84 60076A Plate 1
NI 911413 Wire, Nut 2
NI 912064 Terminal, Solenoid Ring 1
NI 16283A KIt, Literature 1
NI 722021 Clamp, Hose 1

*NOTE: Included with item # 44.

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

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 19

CLARKE TECHNOLOGY Model PB-12

120 Volt Wiring Diagram 4/95

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 20

CLARKE TECHNOLOGY Model PB-12

230 Volt Wiring Diagram 4/95

CLARKE TECHNOLOGY PB-12 Operator's Manual Page 21

NOTES

ALTO® PRODUCT SUPPORT BRANCHES

U. S. A. Locations European Locations

HEAD OFFICE

ALTO U.S. Inc., St. Louis, Missouri

16253 Swingley Ridge Road, Suite 200
Chesterfield, Missouri 63017-1725

PRODUCTION FACILITIES

ALTO U.S. Inc., Springdale, Arkansas

2100 Highway 265
Springdale, Arkansas 72764
[phone]

Customer Service - 1-800-253-0367
Technical Service - 1-800-356-7274

ALTO U.S. Inc., Bowling Green, Ohio 43402

1100 Haskins

SERVICE FACILITIES

ALTO U.S. Inc., Carlstadt, New Jersey 07072

150 Commerce Road
[phone]

ALTO U.S. Inc., Elk Grove, Illinois 60007

2280 Elmhurst Road
[phone]

ALTO U.S. Inc., Denver, Colorado 80204

1955 West 13th Ave.
[phone]

ALTO U.S. Inc., Houston, Texas 77040

7215 North Gessner Road

PRODUCTION FACILITIES

ALTO Danmark A/S, Aalborg

Blytaekkervej 2
DK-9000 Aalborg
[phone]

ALTO Danmark A/S, Hadsund

Industrikvarteret
DK-9560 Hadsund
[phone]

SALES SUBSIDIARIES

ALTO Canada Ltd., Rexdale Ontario

24 Constellation Ct.
[phone]

ALTO Overseas Inc., Sydney (Australia)

1B/8 Resolution Drive
Caringbah NSW 2229
[phone]

ALTO Cleaning Systems Asia Pte Ltd., Singapore

No. 17 Link Road
Singapore 619034
[phone]

ALTO Deutschland GmbH, Frondenberg (Germany)

Ardeyer Str. 15
D-58730 Frondenberg
[phone]

ALTO Cleaning Systems (UK) Ltd., Penrith

Gilwilly Industrial Estate
Penrith
Cumbria CA11 9BN
[phone]

SALES AND SERVICE FACILITIES

ALTO U.S. Inc., Madison Heights, Michigan 48071-0158

29815 John R.
[phone]

ALTO U.S. Inc., Marietta, Georgia 30062

1355 West Oak Common Lane
[phone]

CLARKE TECHNOLOGY

AMERICAN SANDERS TECHNOLOGY

A.L. COOK TECHNOLOGY

Customer Service Headquarters and Factory

2100 Highway 265

Springdale, Arkansas 72764

[phone]

Technical Service

1-800-356-7274

ALTO France S.A. Strasbourg

B.P. 44, 4 Place d’Ostwald
F-67036 Strasbourg
Cedex 2
[phone]

ALTO Nederland B.V. Vianen

Stuartweg 4C
NL-4131 NJ Vianen
[phone]

ALTO Sverige AB, Molndal (Sweden)

Aminogatan 18
Box 4029
S-431 04 Molndal
[phone]

ALTO Norge A/S, Oslo (Norway)

Bjornerudveien 24
N-1266
[phone]

CLARKE TECHNOLOGY WARRANTY

This Clarke Industrial/Commercial Product is warranted to be free from defects in materials and work­manship under normal use and service for a period of one year from the date of purchase, when operated
and maintained in accordance with Clarke's Maintenance and Operations instructions.

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.

If difficulty develops with the product, you should:
(a). Contact the nearest authorized Clarke repair location or contact the Clarke Service Operations Depart­ment, 2100 Highway 265, Springdale, Arkansas 72764, for the nearest authorized Clarke repair location.
Only these locations are authorized to make repairs to the product under this warranty.
(b). Return the product to the nearest Clarke repair location. Transportation charges to and from the repair
location must be prepaid by the purchaser.
(c). Clarke will repair the product and or replace any defective parts without charge within a reasonable time
after receipt of the product.

Clarke'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 MECHANTABILITY, SHALL BE IMPLIED. A warranty
registration card is provided with your Clarke product. Return the card to assist Clarke in providing the
performance you expect from your new floor machine.

ALTO U.S. INC., 2100 Highway 265, Springdale, Arkansas 72764.

CLARKE TECHNOLOGY reserves the right to make changes or improvements to its machine

without notice.

Always use genuine Clarke Parts for repair.

2100 Highway 265

Springdale, Arkansas, 72764