CompAir UK Ltd
PUBLICATION APP034 ELECTRIC MOTOR MAINTENANCE GENERAL
Page 1
app034.doc
ELECTRIC MOTOR MAINTENANCE
WARNING :
Isolate power supply to motor before commencing any routine cleaning or maintenance work.
Routine Cleaning :
Remove the fan cover and ensure that all holes are completely open. Clear any dirt and fluff from behind the
fan and along the ribs of the frame.
Periodic Maintenance :
Remove the cover and the fan which is fitted on the shaft extension.
Slacken and remove bearing cover screws and endshield bolts/studs. The endshields should then be eased
off their spigots.
The rotor can now be withdrawn carefully from the stator.
Having dismantled the motor, maintenance can now be carried out to remove all dirt. Dry, compressed air
under comparatively low pressure is best as a high velocity stream can force dirt into the spaces between
windings, etc.
Grease removing solvents should only be used very sparingly so as not to damage impregnating varnish or
insulation.
Bearings are charged with sufficient grease to last at least two years, provided there is little or no grease
leakage. When replenishing, use only good quality lithium based grease and avoid overfilling the bearing
housing.
Motors should be reassembled in the reverse order from dismantling, taking care not to damage the
windings on insertion of rotor, taking care not to damage the windings on insertion of rotor, remembering to
ease endshields on bearings and spigots. DO NOT USE FORCE.
Before starting, check that the rotor revolves freely. Ensure that the electrical connections are correct and
terminal nuts tight.
Refit any pulley, coupling, sprocket etc. which have been removed, being particularly careful to ensure
correct alignment with the driven part, as misalignment may lead to ultimate bearing failure and shaft
breakage.
Summary of Contents for 5280D.1.IAC
Page 3: ...DATE REMARKS DATE REMARKS logsheet5280 d...
Page 9: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 6 1440 doc...
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Page 44: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 38 1440 doc CRANKCASE 1...
Page 46: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 40 1440 doc CRANKCASE 2...
Page 48: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 42 1440 doc CRANKCASE 3...
Page 50: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 44 1440 doc CYLINDER 1st STAGE...
Page 52: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 46 1440 doc SUCTION VALVE COVER...
Page 60: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 54 1440 doc CROSSHEAD 1st STAGE...
Page 62: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 56 1440 doc PISTON 1st STAGE...
Page 64: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 58 1440 doc GLAND 1st STAGE...
Page 66: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 60 1440 doc OIL PUMP...
Page 68: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 62 1440 doc OIL PUMP FILTER...
Page 70: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 64 1440 doc INTERCOOLER...
Page 72: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 66 1440 doc 1st STAGE PIPE WORK...
Page 74: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 68 1440 doc...
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Page 128: ...CompAir UK Ltd PUBLICATION APP 138 3 WAY SOLENOID VALVES PS2197 Page 2 app138 doc...
Page 130: ...CompAir UK PUBLICATION APP034 ELECTRIC MOTOR MAINTENANCE GENERAL Page 2 APP034 doc...
Page 133: ...CompAir UK Ltd 5280D Compressor Publication 98407 1440 Page 74 1440 doc...