TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 976 of 1258
1 8 - 4 . TRANSFER CASE REPAIR (Model 242) (Cont'd)
TM 9-2320-280-34
18-36
Change 1
Clean all parts in accordance with para. 2-13.
1.
Inspect all parts in accordance with para. 2-14.
2.
Repair all parts in accordance with para. 2-15.
3.
Inspect front half-case (1) for cracks, nicks, burrs, blocked oil passages, and broken, missing, or
damaged studs (7). Also check front input ball bearing (5) and front output ball bearing (4). Repair or
replace damaged studs (7). Remove burrs and clear blocked oil passages. Replace front half-case (1) if
cracked or broken at any machined surface. Remove and discard front output shaft seal (10). Replace
front half-case (1) if annulus gear (2) is loose or damaged. Replace defective ball bearings as follows:
(a)Front output ball bearing (4).
(1) Remove snapring (3) from front half-case (1). (Use bearing remover tool for A2 vehicles.)
(2) Using driver handle, output shaft front bearing remover, and bearing tool, remove and install
ball bearing (4) in front half-case (1).
(3) Install output shaft seal (10) in front half-case (1) with output shaft seal installer.
(b)Front input ball bearing (5).
(1) Using driver handle, input gear bearing installer, and arbor press, press ball bearing (5) out
of front half-case (1).
(2) Remove snapring (6) from ball bearing (5).
(3) Install snapring (6) in ball bearing (5).
(Use bearing installer tool for A2 vehicles.)
(4) Using wooden block, seat ball bearing (5) in front half-case (1). Seat ball bearing (5) until
snapring (6) is against front half-case (1).
4.
Inspect retainer (9) and O-ring (8) for damage. Replace if damaged.
c. Inspection and Repair
b. Cleaning
DRIVER
HANDLE
DRIVER
HANDLE
BEARING
TOOL
INSTALLER
BEARING
REMOVAL
TOOL
INPUT GEAR
BEARING INSTALLER
OUTPUT SHAFT FRONT
BEARING REMOVER
OUTPUT SHAFT
SEAL INSTALLER
OUTPUT SHAFT
SEAL INSTALLER
A2 SERIES VEHICLE
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