Operator`s manual

Page 14 Clarke
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Operator's Manual - Image 14
AUTHORIZED PERSONNEL MAINTENANCE
To Access Pump/Brush Unit
1. Remove six (6) screws in rear plate that secure
solution tank to machine.
2. Remove solution tank from machine.
3. Disconnect pump ground wire from ground screw.
4. Remove solution hoses.
5. Remove two (2) mounting screws that secure pump
motor to frame.
6. Reverse procedures for installing new pump. Check
wiring diagram for proper connections when rein-
stalling electrical parts.
Brush Drive Belt Replacement
1. Remove (6) screws in rear plate that secure solu-
tion tank to machine.
2. Remove solution tank from machine.
3. Remove screws holding brush cover on. Remove
brush cover.
4. Remove (2) screws holding brush assembly in
place and replace belt.
5. Reassemble in reverse order.
Maintenance of the Vacuum Motor
This machine has a vacuum motor that uses carbon
brushes. The carbon brushes in the motor must be
checked every three months, or every 500 hours of
operation, whichever comes first. If either of the
brushes is shorter than 3/8 inch, replace both of the
carbon brushes.
To gain access to the vacuum motor:
1. Remove (6) screws in rear plate that secure solu-
tion tank to machine.
2. Remove solution tank from machine.
3. Access the brushes or the (3) bolts that secure
the vacuum motor to tank.
Brush Maintenance
1. Remove (6) screws in rear plate that secure
solution tank to machine.
2. Remove solution tank from machine.
3. Remove screws holding brush cover on.
Remove brush cover.
4. Remove (2) screws holding brush assembly in
place and replace brush.
5. Carefully pry brush pivot out from bearing (ap-
plying pressure unevenly can break brush
pivot).
6. Add a small amount of grease to face of seal
and bearing on I.D. of brush core.
7. Reassemble in reverse order.