Installation and Maintenance Manual

GEI-M1031-B
13
V. MAINTENANCE
A. General Cleanliness
Inspect the motor at regular intervals, depending on service. Keep the motor clean and the
ventilation openings clear.
In addition to the daily observation of the overall condition, it is recommended that a
general inspection routine be set up to periodically check the following items:
1. General Cleanliness
2. Insulation and Windings
3. Lubrication and Bearings
The interior and exterior of the machine should be kept free from dirt, oil, grease and
conducting dust. Oily vapor, paper, or textile dusts may build up and block off ventilation.
Any of these contaminants can lead to early motor failure.
B. Insulation and Windings
1. General
To obtain long life and satisfactory operation of insulated windings, they should be kept
clean from dirt, oil, metal particles, and other contaminants. A variety of satisfactory and
acceptable methods are available for keeping equipment clean. The choice of method
will depend greatly on time, availability of equipment, and on the insulation system.
However, vacuum and/or compressed air cleaning with nonmetallic hose tips should
precede cleaning with water and detergent or solvents. Tight adhering dirt will require
agitation by gentle brushing or wiping.
2. Vacuum and Compressed Air Cleaning
Compressed air should be used to remove loose dirt and dust from air passages such as
air ducts. Suction should be used to remove dirt and dust particles from windings to
avoid driving particles into the windings and damaging the coils.
Warning
Before initiating maintenance procedures, disconnect all power sources to the
machine and any accessories. For machines equipped with surge capacitors do not
handle the capacitor until discharged by a conductor simultaneously touching all
terminals and leads, including ground. This discharge conductor should be insulated
for handling.
Replace all normal grounding connections prior to operating.
Failure to observe these precautions may result in injury to personnel.
Warranty may be voided if internal maintenance or repairs
are not performed by a GE authorized service shop.
Warning
To prevent injury to eyes and respiratory organs, safety glasses and suitable
ventilation or other protective equipment should be used.
Care must be taken to make sure that
the air supply is dry and that excessive
air pressure is not used.
Generally a pressure of not more than 30 psi is
recommended.
Warning
Operator must not use compressed air
to remove dirt or dust from his person
or clothing.
Caution