DERRICK EX, Maintenance & Operation Manual

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EX, SGX VIBRATOR MOTORS
Bearing Removal (Cont’d)
11 - Using a 6mm hex wrench, alternately
and equally advance each jack screw a
few turns at a time.
12 - As jack screws contact bearing
housing, bearing mount is drawn from
bearing housing as shown, while inner
bearing race remains on shaft. Remove
and discard bearing and bearing mount.
13 - Using a soft absorbent cloth, remove
excess lubricant from interior of bearing
housing and inner bearing race. Do not
use compressed air for cleaning as this
may drive contaminants into motor.
14 - Using a torch with a diffused flame,
gently heat inner bearing race for no more
than 10 seconds to approximately 200°-
230°F (93°-110°C) to facilitate removal.
15 - Carefully remove and discard heated
inner bearing race from motor shaft. Using
a soft absorbent cloth, remove excess
lubricant from interior of bearing housing.
Do not use compressed air for cleaning as
this may drive contaminants into motor.
01 May 09 23