TM 5-3895-373-34
2.40
REPLACE/REPAIR TRACK DRIVE HUB - Continued.
A.
REMOVE - Continued.
4.
REMOVE
REMAINING
BEARING
COMPONENTS, FLAT WASHER, PLAIN SEAL,
NONMETALLIC
SEAL,
DRIVE
SPROCKET
GEAR
MOUNTING
STUDS,
AND
LUBRICATION FITTING.
a.
Set track drive hub (5) on cribbing, large flange
down. Use brass drive pin punch and hammer
to drive out tapered roller bearing (11), flat
washer (12), and plain seal (13). Discard
encased plain seal and tapered roller bearing.
b.
Carefully and evenly drive tapered roller cup (14)
from track drive hub (5). Discard tapered roller
cup.
c.
Set track drive hub (5) on cribbing, large flange
up. Allow at least 1 in. (25 mm) clearance
between track drive hub and surface of work
bench.
d.
Using brass drive pin punch and plastic hammer,
tap evenly around full perimeter of nonmetallic
seal (15). Drive nonmetallic seal out of track
drive hub (5). Discard nonmetallic seal.
e.
Repeat procedure in step d to remove tapered
roller cup (16). Discard tapered roller cup.
f.
Using universal puller kit, pull tapered roller
bearing (17) from drive shaft hub (6). Discard
tapered roller bearing.
g.
Using stud remover and setter, remove drive
sprocket gear mounting studs (18) from hub
drive shaft (6). Remove lubrication fitting (19).
Discard drive sprocket gear mounting studs and
lubrication fitting.
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