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Overgreasing can be a cause of bearing and
motor failure. Make sure dirt and contaminants
are not introduced when adding grease.
CAUTION
4.10 MOTOR LUBRICATION
The induction-type squirrel cage motors have antifriction
ball or roller bearings front and rear. At periodic intervals
they require relubrication.
Relubrication Interval - 60 Hz
(or 9 months, whichever comes first)
1000 hours ......................................all TEFC drive motors
2000 hours .........all ODP drive motors and all fan motors
When regreasing, stop motor. Disconnect power; lock out
and tag. Remove outlet plugs (or spring-loaded grease
relief plugs if present). The outlet plug may not be
accessible on the fan end of some TEFC motors.
Grease should be added when the motor
is stopped and power disconnected.
CAUTION
Lubricant Amount
Motor Frame Size in
3
cc oz. grams
182-215 .5 8 .4 11
254-286 1.0 16 .8 23
324-365 1.5 25 1.2 34
404-449 2.5 40 2.0 57
5000 Frame Series 1.0 16 .8 23
Relubrication amount
Procedure for relubrication
NOTICE
Motors must be greased periodically.
See Operator’s Manual for procedure.
Relubrication Interval - 50 Hz
(or 9 months, whichever comes first)
2000 hours ..................M90 - 160 KW TEFC drive motors
4000 hours...................................M75 TEFC drive motors
Improper lubrication can be a cause of motor bearing
failure.The quantity of grease added should be carefully
controlled. The smaller motors must be greased with a
lesser amount of grease than larger motors.
Lubricant Amount
Motor Frame Size in
3
cc oz. grams
M75-160 As indicated on motor
nameplate
Relubrication amount