MAINTENANCENINJA INTL 86038610 03/29/074-2Only qualifiedmaintenance personnelare to perform thefollowing repairs.VACUUM MOTOR REPLACEMENT1. Turn off all switches and unplug machine.2. Remove recovery tank.3. Locate the vacuum motor wires and disconnectat the connector.4. Remove the vacuum motor.5. Reverse process to install vacuum motor.SOLUTION PUMP REPLACEMENT1. Turn off all switches and unplug the machine.2. Remove recovery tank.3. Remove solution hoses from fittings in pump.4. Remove the screws that fasten the pump to theframe.5. Reverse process to install pump.Vacuum Motor Carbon Brushes Replacement (Windsor)WARNING: The greenground wire must beattached for safe operation.See wiring diagram.End CapCarbonBrushesIf armature commutator is grooved, extremely pitted or notconcentric, the motor will need to be replaced or sent to aqualified service center.Important:These brushes wear quicker as the length shortens due toincreased heat. Spring inside brush housing will damagemotor if brushes are allowed to wear away completely.Periodically check the length of the carbon brushes. Replaceboth carbon brushes when either is less than 3/8" (9.5mm)long.38 [9.5mm]Important:These brushes wear quicker as the length shortens due toincreased heat. Spring inside brush housing will damagemotor if brushes are allowed to wear away completely.Periodically check the length of the carbon brushes. Replaceboth carbon brushes when either is less than 3/8" (9.5mm)long.3/8 (9.5mm)Vacuum Motor Carbon Brushes Replacement (Ametek)Note: When replacing carbon brushes loosen wire terminalBEFORE removing screws on bracket.Note:Placestop ingroove.WireTerminalWARNING: The greenground wire must beattached for safe operation.See wiring diagram.End CapCarbonBrushesWire TerminalIf armature commutator is grooved, extremely pitted or notconcentric, the motor will need to be replaced or sent to aqualified service center.