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GEK-95352
15
V. MAINTENANCE
Before initiating maintenance
procedures, disconnect all
power sources to the motor and
accessories. For machines
equipped with surge capacitors
do not handle capacitor until it
is 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.
A. General
Inspect the motor at regular intervals, as
determined by service conditions. Keep
the motor clean and the ventilation open-
ings clear.
In addition to a daily observation of the
overall condition, it is recommended that
a regular inspection routine be set up to
check periodically the following items:
1. General Cleanliness
2. Insulation and Windings
3. Lubrication and Bearings
4. Coupling Bolt Tightness
B. General Cleanliness
The interior and exterior of the machine
should be kept free from dirt, oil, grease
and conducting dust. Oily vapor, debris,
or dust may build up and block off venti-
lation. Any of these contaminants can
lead to early motor failure. Motors should
be disassembled and thoroughly cleaned
periodically as needed.
Motors may be blown out with dry, com-
pressed air of moderate pressure. How-
ever, cleaning by suction is preferred be-
cause of the possibility of water in the
compressed air lines and the danger of
blowing metal chips into the insulation
with compressed air.
To prevent injury to eyes and
respiratory organs, safety
glasses and suitable ventilation
or other protective equipment
should be used. Operator must
not use compressed air to re-
move dirt or dust from his person or clothing
.
Screens and covers are provided as neces-
sary for protection of the equipment and
personnel. All screens must be kept free
of dirt and debris to ensure proper venti-
lation, and kept in place for protection of
personnel.
C. Coupling Maintenance
The condition of non-reverse couplings
should be checked periodically by re-
moving the top cap. If dirt has caused the
action of the pins to become sluggish, the
pin-carrier should be removed, disassem-
bled, and thoroughly cleaned with a suit-
able solvent. The parts should then be
dried and reassembled in accordance with
the instructions given under NON-
REVERSE COUPLINGS.
Sometimes, after a long period of opera-
tion with frequent stops and starts, the
surface of the holes in the pin-carrier be-
comes polished, so that friction forces
will no longer hold the pins clear of the
ratchet teeth when the motor is running.
This condition can be remedied by rough-
ening these surfaces with a piece of em-
ery paper wrapped around a rod.