TM 9-2320-289-34
5-21.
TRANSFER CASE MAINTENANCE (ALL EXCEPT M1028A1 AND Ml 031)
(Con’t).
10.
11.
12.
13.
14.
NOTE
Damage to bearings may be determined in accordance with TM 9-214.
Remove mainshaft rear bearing (87) from extension housing (2) if damaged,
Remove front output shaft front bearing (90) from front case (29) and rear pilot bearing (91)
from rear case (43) if damaged.
Remove input drive gear front and rear bearings (89) from front case (29) if damaged.
Remove input drive gear pilot bearing (88) from input drive gear (73) if damaged.
Remove annulus gear and extension housing bushings if damaged.
d.
ASSEMBLY
NOTE
All components should be lightly lubricated with hydraulic fluid as they are
assembled.
1 .
Install new bushings to annulus gear and extension housing if removed.
CAUTION
All transfer case bearings must be correctly installed to ensure that
bearing oil passages are not obstructed, Failure to follow this caution may
result in damage to bearings and other components.
2.
Install input drive gear front and rear bearings (89) one at a time, installing rear bearing first, if
removed.
3.
Install front output shaft front bearing (90) to front case (29) and rear pilot bearing (91) to rear
case (43), if removed. Ensure that rear pilot bearing is seated flush with edge of rear case
bore to allow room for thrust bearing assembly.
4.
Install mainshaft rear bearing (87) to extension housing (2) until fully seated, if removed.
5.
Install input drive gear pilot bearing (88) in input drive gear (73) until seated flush with oil
passage, if removed.
6.
Lightly coat new front output shaft seal (86) and new input drive gear seal (85) with petrolatum
and install,
7.
Lightly coat new rear seal (84) with petrolatum and install to extension housing (2).
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