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Vacuum Motor Carbon Brushes Replacement (Ametek)
Carbon
Brushes
Note: When replacing carbon brushes loosen wire
terminal BEFORE removing screws on bracket.
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.
End Cap
WARNING: The green
ground wire must be
attached for safe
operation. See wiring
diagram.
Wire
Terminal
Note:
Place
stop in
groove.
Wire Terminal
3/8 (9.5mm)
CHEYENNE 86038870 03/14/07
perform the following repairs.
SOLUTION PUMP REPLACEMENT
1. Turn off all switches and unplug the machine.
2. Tip recovery tank to gain access to solution
tank.
3. Remove solution hoses from fittings on pump.
Disconnect wires.
4. Remove the screws that fasten the pump to the
frame.
5. Reverse process to install new replacement
pump.
VACUUM MOTOR REPLACEMENT
1. Turn off all switches and unplug machine.
2. Tip recovery tank to expose vacuum (s).
3. Locate the proper vacuum motor wires and
disconnect.
4. Unfasten screws holding vacuum to vac plate.
Remove the vacuum motor.
5. Reverse process to install vacuum motor
replacement.
MAINTENANCE
Only qualified
maintenance
personnel are to
4-2
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