MAINTENANCE
VACUUM MOTOR REMOVAL
1.Turn off switch and unplug machine.
2.Set the machine in its upright position. Remove the screws (2) in the back metal cover. Rotate the cover down and slide back releasing the tab under the machine from the main frame.
3.Remove the pump box cover. Remove screws
(4) at each leg of the cover.
4.Remove vacuum hose, loosen hose clamp and pull hose from bottom of vacuum motor.
5.Unplug wires (2) from main harness located in pump mount housing. Remove ground from stud on main frame.
6.To remove the vacuum motor, remove the screws (2) in the back of the machine that mount the plastic cover to the solution tank.
7.Remove the screws (3) that mount the vacuum motor to the plastic cover. Pull the cover off the vacuum motor.
8.Unscrew the ground wire from the vacuum motor.
9.Reverse the process to reinstall the vacuum motor.
NOTE: Make sure the excess wire lengths do not get pinched between the vacuum motor and plastic cover.
The vac motor is protected by a circuit breaker located in the switch panel. The breaker will only trip under conditions of abuse.
Vacuum Motor Carbon Brushes Replacement
| End Cap | |
Carbon | WARNING: The green | |
Brushes | ground wire must be | |
attached for safe operation. | ||
| ||
| See wiring diagram. |
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.
38 [9.5mm]
Periodically check the length of the carbon brushes. Replace both carbon brushes when either is less than 3/8" (9.5mm) long.
86037780 EXTRACTOR 12/09/06 |
