MAINTENANCE
BRC 46/38 C 86306850 12/27/07
4-2
!
WARNING:
ONLY QUALIFIED MAINTENANCE PERSONNEL ARE TO PERFORM THE
FOLLOWING REPAIRS.
VACUUM MOTOR REPLACEMENT
1. Turn off all switches and unplug machine.
2. Remove
recovery
tank.
3. Remove the (2) screws that fasten the solution
tank to the frame, and tilt tank back to expose
the inside of the frame.
4. Locate the vacuum motor wires and disconnect
at the connector. Close the solution tank.
5. Remove the (6) screws holding the vacuum
motor cover 86003080 (PRV NO. 27809) to the
solution tank.
6. Remove the vacuum motor.
7. Reverse process to install vacuum motor.
Vacuum Motor Carbon Brushes Replacement
WARNING:
The green
ground wire must be
attached for safe
operation. See wiring
diagram.
End Cap
Carbon
Brushes
If armature commutator is grooved, extremely pitted or
not concentric, the motor will need to be replaced or
sent to a qualified service center.
Important:
These brushes wear quicker as the length shortens
due to increased heat. Spring inside brush housing
will damage motor if brushes are allowed to wear
away completely.
Periodically check the length of the carbon brushes.
Replace both carbon brushes when either is less than
3/8" (9.5mm) long.
3
8
[9.5mm]
