Pump Motors
37
Level 2
A.O.Smith
HOW TO REPLACE BEARINGS
1.
Remove the bearing(s) from the
motor shaft following these steps
as necessary:
■
Use an external ring pliers to
remove snap rings which are
used to secure bearings.
■
Use a bearing puller to
remove defective bearing(s).
Don’t reuse a bearing which
has been removed from the
shaft.
■
Remove miscellaneous small
parts (washers, etc.) from
shaft after bearings are
removed. Be sure to replace
in proper order.
2.
Install the new bearing(s) using
the motor illustration and typical
bearing installation view as an
assembly guide. Follow these
steps as necessary.
■
Refer to the table for the size
tube needed to install new
bearing(s). It is important to
press only on the bearing
inner race. The bearing will
be damaged if the outer race
surface is used for pressing.
■
Fan end: Place the short end
of the shaft on the wood
block. Place the bearing (and
other parts as used) over the
long end of the shaft. Tap
the bearing into place using
the proper size tube and a
mallet, or use a press.
Attach any parts (as used) to
the long shaft end.
RINGS, BEARINGS,
SHIELD AND SPACER
ARE OFF SHAFT END
WOOD BLOCK
BEARING
INSTALLATION
TUBE (SEE
TABLE 1)
NOTE:
SNAP RINGS ARE USED
ON SOME MODELS TO
LOCATE BEARINGS
RATHER THAN A SHAFT
SHOULDER
BEARING
SHORT SHAFT END
ROTOR
FAN
LONG SHAFT END
WOOD BLOCK
ROTOR
FAN
RING
SHIELD
BEARING
LONG SHAFT END
LOCK PLATE
