REPLACE/REPAIR TRACK DRIVE HUB - Continued.
INSTALL - Continued.
INSTALL PLAIN SEAL, FLAT WASHER, AND
BEARING SELF-LOCKING NUT.
Coat sealing surfaces of plain seal (13) with
Center plain seal (13) in track drive hub (5),
sealing lip down. Carefully tap plain seal
squarely to seat with brass drive pin punch and
Using brass drive pin punch and plastic hammer,
evenly drive plain seal (12) to seat.
Install lockwasher (9). With beveled face toward
lockwasher, install and hand tighten bearing
selflocking nut (10).
Install lock nut torquing adapter and torque
wrench on bearing self-locking nut (10).
Insert adapter between drive sprocket gear
mounting studs to keep hub drive shaft (6) from
With another person holding the adapter, tighten
bearing self-locking nut (10) and check hub drive
shaft rotation intermittently. When hub drive
shaft will no longer turn, stop.
While holding hub drive shaft with adapter,
unscrew bearing self-locking nut (10) two full
Retighten bearing self-locking nut (10) while
Intermittently check resistance felt while rotating
hub drive shaft.
When the first increase in hub drive shaft
rotation resistance is felt, stop. Tighten bearing
self-locking nut an additional 1/16 turn.
Bend at least one tab of lockwasher (9) into
notch of bearing self-locking nut (10).
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