TM 5-3820-233-35/2
Follow the instructions below when installing gear and
(3) Inspect shafts for wear and spring, or bent
bearings.
condition. Replace a defective shaft.
o
o
(a) Heat gear (37) in oil (325 F - 350
(4) Inspect bearings for wear, chipping, or
F) to shrink onto hub (40).
nicks. Replace a defective bearing.
(b) Heat bearings (36) in oil (270 F -
(5) Inspect all parts for excessive wear or
o
290 F) to shrink onto hub (40).
damage. Replace or repair defective parts.
Caution:
f. Gear Box Reassembly.
Any injury to the hub surfaces where
(1) Reassemble gear box assembly in the
the oil seals (34 and 46) rub will
reverse of the numerical sequence as illustrated on
cause leakage, and a new hub will
have to be installed.
11, 12 or 13) until a slight clearance of .006 to .008 inch
is obtained between gears. Clearance can be checked
Note.
with a feeler gauge through inspection plug hole (6).
When pressing bearings (41 and 42)
Also shims must be installed to obtain a flush position of
on shaft (45), press against the inner
both gears when examined through inspection hole.
race, not the outer race, of the
Make sure grease seals are positioned with knife edge
bearings.
of seal as shown on figure 443.
(2) Fill cavity between the oil seals and
(2) Fill gear box with lubricant (Operator's
housing bores with chassis grease to prevent oil
Manual).
leakage.
g. Countershaft
Bearing
Reassembly.
(3) Fill speed
reducer
with
lubricant
Reassemble countershaft bearing
assembly as
(Operator's Manual).
illustrated on figure 43-2.
i. Reassembly and Installation. Reassemble and
h. Speed Reducer Reassembly.
install the undercrusher conveyor and elevating wheel
(1) Reassemble speed reducer in the reverse
drive in the reverse of the numerical sequence as
of the numerical sequence as illustrated on figure 44-2.
illustrated on figure 44-1.
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