TM 5-3895-373-34
2.40
REPLACE/REPAIR TRACK DRIVE HUB - Continued.
D.
INSTALL - Continued.
c.
After 3 or 4 minutes, turn track drive hub (5) up-
side down. Remove tapered roller cup (16) from
freezer and immediately center in mating bore.
Use a hammer and brass drive pin punch to
evenly tap tapered roller cup into seat.
3.
INSTALL TAPERED ROLLER BEARING.
a.
Pack tapered roller bearing (17) with grease.
b.
Apply a light film of grease to inside diameter of
tapered roller bearing (17) and mating outside
diameter of hub drive shaft (6).
NOTE
A minimum of 20 tons press force is
required to seat tapered roller bearing
(17) on hub drive shaft (6).
c.
Using hydraulic press frame, parallel support
blocks, and bearing driver, press tapered roller
bearing (17) to seat on hub drive shaft (6).
4.
INSTALL NONMETALLIC SEAL, HUB DRIVE
SHAFT, AND TAPERED ROLLER BEARING.
a.
Coat sealing surfaces of nonmetallic seal (15)
with grease.
b.
Center nonmetallic seal (15) in track drive hub
(5), sealing lip down. Carefully tap nonmetallic
seal squarely into seal bore with plastic hammer
until fully seated.
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