Rockwell Automation 1329R Small AC Motors, 1/3-3 HP, User Manual - Manual (Page 5)

1329R Small AC Motors 5
Maintenance
The fundamental principle of electrical maintenance is – Keep The
Apparatus Clean And Dry. This requires periodic inspection of the
motor, the frequency depending upon the type of motor and service.
The following should be checked at regular intervals.
1. Windings should be dry and free of dust, grease, oil, and dirt.
Windings may be cleaned by suction cleaners or by wiping.
Nozzles on suction type cleaners should be non-metallic. Gummy
deposits of dirt and grease may be removed by using a
commercially available mineral solvent. Do not use gasoline or
other inflammable solvents.
2. Terminal connections, assembly screws, bolts and nuts should be
tight. They may loosen if motor is not securely bolted and tends
to vibrate.
3. Insulation resistance of motors in service should be checked
periodically at approximately the same temperature and humidity
conditions to determine possible deterioration of the insulation.
When such measurements at regular intervals indicate a wide
variation, the cause should be determined. Motor should be
reconditioned if it has been subjected to excessive moisture, or by
re-winding or re-insulating if necessary. Enclosed motors require
very little attention. Be sure that external air chamber of fan
cooled motors does not become clogged with foreign material
which will restrict passage of air.
Lubrication Ball Bearings
The ball bearing has deep grooved, double shielded bearings with
sufficient Iubricant packed into the bearings by the manufacturer for
“life Lubrication.” The initial Iubricant is supplemented by a supply
packed into larger reservoirs in the end shield at time of assembly. No
grease fittings are provided as the initial lubrication is adequate for up
to 10 years of operation under normal conditions.
!
ATTENTION: High Voltage. Electric shock may cause
serious or fatal injury. Disconnect power before touching
any internal part.
!
ATTENTION: Mineral solvents are flammable and
moderately toxic. The usual precautions for handling
chemicals of this type should be observed. These include:
1. Avoid excessive contact with skin.
2. Use in well ventilated areas.
3. Take necessary precautions to prevent fire or explosion
hazards.