Advance acoustic Aquamatic Selectric User manual

Revised 8/93 Form Number 56043015
Aquamatic Selectric
™
SERVICE MANUAL
Advance MODEL 56263500

Aquamatic Selectric™ Service Manual
TABLE OF CONTENTS
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General Service Instructions
Belt...................................................................................................................5
Bladder.............................................................................................................8
Brush................................................................................................................5
Brush Drive Motor ............................................................................................5
Brush Relay .....................................................................................................2
Circuit Breakers ...............................................................................................2
Control Handle Switches..................................................................................7
Delay Relay (K1)..............................................................................................2
Differential....................................................................................................... 2
Electrical Component Identification..................................................................1
Electronic Control Box .................................................................................... 5
Rectifier............................................................................................................2
Solenoid Valve ................................................................................................ 5
Solution Pump................................................................................................. 5
Vacuum Motor ................................................................................................. 2
Wheel Drive Motor .......................................................................................... 2
Wheel Drive Relay .......................................................................................... 2
Wheel Drive Speed Controller .........................................................................2
Troubleshooting
Brush Drive System Troubleshooting.............................................................11
Solution System Troubleshooting ....................................................................9
Wheel Drive System Troubleshooting............................................................13

Aquamatic Selectric™ Service Manual
GENERAL SERVICE INSTRUCTIONS
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ELECTRICAL COMPONENT IDENTIFICATION
1Brush Circuit Breaker (6 amp)
2Wheel Drive Circuit Breaker (2 amp)
3Vacuum Circuit Breaker (13 amp)
4Delay Relay (K1)
5Wheel Drive Speed Controller
6Rectifier
7Wheel Drive Relay
8Brush Relay
9Electronic Control Box
10 Wheel Drive Motor
11 Solution Pressure Switch
12 Brush Drive Motor
13 Solution Pump
14 Solenoid Valve
10
9
Brush Platform
12
13
11
14
FRONT
8
7
6
45 32 1
FIGURE 1
FIGURE 2
1

Aquamatic Selectric™ Service Manual
GENERAL SERVICE INSTRUCTIONS
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WHEEL DRIVE, VACUUM MOTOR & ELECTRICAL CONTROLS
Note: The components listed below are mounted in the machine frame. See Brush Drive Motor, Solution
Pump & Solenoid Valve for service instructions on parts located on the brush platform.
To service... Follow steps...
circuit breakers 1 - 3
differential 1 - 4
rectifier 1 - 6
relays 1 - 6
vacuum motor 1 - 6
wheel drive motor 1 - 7
wheel drive speed controller 1 - 6
1Drain both the solution and recovery tanks and put the drive pedal in the OFF (up) position.
2Tip the machine up on its nose.
3See Figure 3. Remove the (4) “A” screws and rear cover “B” from the bottom of the machine.
A
B
FIGURE 3
2

Aquamatic Selectric™ Service Manual
GENERAL SERVICE INSTRUCTIONS
4See Figure 4. Remove drive belt “E” from the drive motor pulley, remove the (4) “F” nuts and lift differen-
tial “G” out of the frame.
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WHEEL DRIVE, VACUUM MOTOR & ELECTRICAL CONTROLS (continued)
FIGURE 4
M
N
P
E
F
G
3

Aquamatic Selectric™ Service Manual
GENERAL SERVICE INSTRUCTIONS
5See Figure 5. Loosen the “H” and “I” hose clamps, pull the hoses off of pickup shoe “J” and vacuum
motor “K”.
6Remove the “L” bolts, disconnect the vacuum motor wiring (cut wire ties straps, if necessary) and remove
the vacuum motor from the machine.
7See Figure 4. Remove the (4) “M” bolts, disconnect the wheel drive motor wiring (cut wire tie straps, if
necessary) and remove the wheel drive motor from the machine.
• If the drive belt slips after reinstalling the wheel drive motor, loosen the “N” bolts and move plate “P” down
1/8 inch. Then test machine for proper operation and repeat adjustment if necessary.
FIGURE 5
L
K
H
L
I
J
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WHEEL DRIVE, VACUUM MOTOR & ELECTRICAL CONTROLS (continued)
4

Aquamatic Selectric™ Service Manual
GENERAL SERVICE INSTRUCTIONS
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BRUSH DRIVE MOTOR, SOLUTION PUMP & SOLENOID VALVE
Follow the steps below to service the Brush, the Belt, the Brush Drive Motor, the Solution Pump, the Solenoid
Valve or the Electronic Control Box.
Note: See Wheel Drive, Vacuum Motor & Electrical Controls section for service instructions on parts mounted
in the machine frame.
1Drain both the solution and recovery tanks. Then tip the machine up on its nose.
2See Figure 6. Remove the “A” screws securing belt guard “B” and remove the guard from the frame.
3Place the brush lift pedal in the DOWN position. Then pull the brush platform away from the frame, as far
as the lift cable will allow.
4Remove nut “C” and lift cable “D”.
5Turn the front caster wheel to the side and pull the brush platform away from the frame.
6See Figure 7. Loosen lock nut “E” and turn bolt “F” counter-clockwise to loosen the belt tension. Then
remove belt “G” from the motor pulley.
A
B
Brush Platform
C
DFIGURE 6
5

Aquamatic Selectric™ Service Manual
GENERAL SERVICE INSTRUCTIONS
7See Figure 8. Pry belt cover “H” off the end of the brush housing.
FIGURE 7
E
H
Brush
Brush Housing
G
8Pull the brush and the belt out of the brush housing.
FIGURE 8
Number Visible on
Bearing Blocks
Brush Housing
G
Follow steps 6 - 8 in reverse order to install the new brush or belt.
Note: Always install the brush in the brush housing so the number “1” on both bearing blocks is visible from
the bottom of the machine (see Figure 8).
F
H
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BRUSH DRIVE MOTOR, SOLUTION PUMP & SOLENOID VALVE (continued)
6

Aquamatic Selectric™ Service Manual
GENERAL SERVICE INSTRUCTIONS
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CONTROL HANDLE SWITCHES
Follow the instructions below to service the (2) switches in the top of the control handle. These switches,
which are operated by the levers on the handle, control the brush drive and the wheel drive motors.
1Remove the (6) screws from the metal cover on the left side of the control handle.
2Disconnect the 2 sets of Red/Green wires and the 2 sets of White/Green wires at their spade connectors.
Then cut the plastic tie straps from the upper portion of these wires.
3See Figure 9. Remove the (2) “A” screws and (2) “B” nuts and slide the switch box to the left and out of
the handle.
4Gently pry box halves “C” and “D” apart, using a flat blade screw driver.
5Replace parts as required and follow steps in reverse order to reassemble.
FIGURE 9
C
A
B
D
7

Aquamatic Selectric™ Service Manual
GENERAL SERVICE INSTRUCTIONS
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BLADDER MAINTENANCE AND REMOVAL
The bladder should be removed at least once a year (more often under heavy usage) for a thorough cleaning.
To remove the bladder...
1Unplug the power cord and empty both tanks.
2See Figure 10. Pull the hoses off dome lid “H” and remove the dome from the machine.
3Lift cover “J” and remove the (4) “B” nuts.
4Remove plate “A” and carefully pull the bladder up and off of the (4) “C” screws.
5Working through the rear tank opening, remove the (4) sets of hardware items “D” nuts, “E” clips, “F”
washers and “G” screws.
6Collapse the bladder and pull it through the front tank opening.
7Remove the recovery tank drain plug and flush out the inside of the tank thoroughly.
8Clean the bladder inside and out, then follow the steps in reverse order to reinstall it.
C
BA
H
JGF
D
E
FIGURE 10
8