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4. 

Lift out  motor 

check  motor  brushes. 

worn to 

replace brushes. 

DIFFERENTIAL ASSEMBLY 

NOTE: 

The  differential  assembly,  traverse 

drive  motor  and  brush  gear  unit  can  be 
removed  as  a  total  unit  for  servicing,  if 

required. 

1. 

Lay  machine  on  side  or  build  tripod 

supports  for  each  side  of  machine  to 
hold unit upright as shown. 

3. 

Remove axle hub clamps. Lift off assem- 
bly and lay on bench to service. 

AXLE ASSEMBLY 

1. 

Remove bolt holding wheel to axle. 

2. 

Remove  wheel  from  axle.  Use  wheel 
puller,  if needed,  being  careful  not  to 

damage threads in center hole of axle. 

3. 

To 

remove axle and bearings from hub 

... 

A. 

Remove snap ring from hub. 

B. 

Use an  arbor  press  or  hammer  and 
block of wood to remove bearing and 

axle. 

2. 

Remove boits from brush lift arm bracket 

and traverse drive connecting arm. 

C. 

To  remove  roiler  bearing  from  hub, 
use a piece of 

dia. tube to drive 

out bearing. 

ASSEMBLY 

To 

remove squeegee assembly.. 

1. 

Depress pedal to 

squeegee. 

2. 

Pull retaining pin from locator stud. 

3. 

Push down on squeegee to remove from 
drag arm and slide squeegee to the right 
to disengage  right hand stud from arm. 

4. 

When  installing  or  replacing  squeegee 
blades make sure the smooth 

of the 

blade is next to the squeegee casting. 

5. 

Squeegee  support  caster 

with 

squeegee  assembly  setting  perpendicular 
to the  floor  surface,  adjust  caster  to a 
clearance  of  approximately 

between 

bottom  of  caster  and  the  floor. 

As 

the 

squeegee blades wear,  adjust caster  to 
maintain this dimension. 

6.  The  angle  of  the  squeegee  c a n   be 

changed with the adjusting screw. Turn 
screw clockwise to tilt squeegee forward 
and  counterclockwise  to  tilt  rearward. 
Tighten  lock nut after making adjustment. 

7. 

Squeegee pressure can be changed with 
the adjusting screw. 

To 

pressure 

turn  counterclockwise,  t o   decrease 
pressure turn 

Summary of Contents for PowerTec20

Page 1: ......

Page 2: ...trical components of the machine dry Lead acid batteries generate gases which can cause an explosion Keep sparks and flames away from the batteries Charge the batteries only in a well ventilated area...

Page 3: ...Controls flow of cleaning solution to floor Light ON indicates solution valve is open Indicates charge condition of batteries 4 green lights full charge approximately 4 112 hours run time 1 green ligh...

Page 4: ...TE Dis connect the AC power cord from the wall receptacle before removing the DC charger plug from machine 2 Check water level In batteries Add distilled water as needed 3 Attach brush or drive pad to...

Page 5: ...sure battery charger is dlscon nected 3 Make sure all switches are OFF 4 Remove batteries as required or dlscon nect main battery leads from batteries when making repairs to electrical system VACUUM...

Page 6: ...er bearing from hub use a piece of 314 dia tube to drive out bearing SQUEEQEEASSEMBLY To remove squeegee assembly 1 Depress pedal to raise squeegee 2 Pull retaining pin from locator stud 3 Push down o...

Page 7: ...lt when the traverse handle is in the neutral position 1 Start the brush motor and lower the brush slowly to the floor When the rear of the brush A touches the floor the To adjust clearance A Remove l...

Page 8: ...VAC BATTERY TANK 7 VAC BATTERY TANK REV PARTNO mnitvion 32 9 70280 Stud 1 4 Turn Fastener 10 70076 Scr 10 32 x 1 FHMS 11 51074 Lug Shroud Mounting 12 48012 Knob 5 16 18 8...

Page 9: ...1 7 AI 1 6 9...

Page 10: ...MAINFRAMEWITANKS 38 I 34 37 36 35 39 41 i o 1 3 14 1 46...

Page 11: ...SQUEEGEE w ARM 59 69 21 1 I __ 11...

Page 12: ...oke PT 20 Drive Linkage 24 57112 Nut 5 16 18 Flange 25 57104 Nut 10 32w Star Washer 26 67122 Rod Drive Linkage 27 14509 Bracket RH Drive Handle Mtg 28 62190 Plate PT 20 Support 29 62211 Plate Drive Ha...

Page 13: ...48 4 9 50...

Page 14: ...14 2 1 IAL 39...

Page 15: ...PT 20 LABELS PART NO DESCRIPTION LOCATION I inside cover On handle I50378 Instruction Card I I9387 Maintenance Under hood I 15...

Page 16: ...19 Spring PT 20 Brush Lock 63A 02095 Brush PT 20 Nylon 638 02096 Brush PT 20 Polypro 63C 02097 Brush PT 20 Extra Aggressive 630 02098 Pad Driver PT 20 64 59020 0 Ring 4125 65 57133 Nut M24 x 2 Lock 66...

Page 17: ...s shown on Page 16 in the service manual Retain this notice in your manual for reference when ordering replacement parts 1 Key 44 Changed to rod with lock nuts replacing the snap rings 2 Keys 1 2 3 4...

Page 18: ...A and G voltage should be 22 26 VDC If no voltage replace solenoid Reset vac motor circuit breaker Check motor lead connections at terminal block and inline connector near vac motor Keep all connecti...

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