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 864 of 1258
TM 9-2320-280-34
1 7 - 8 4
Change 1
1 7 - 1 9 . GEAR UNIT AND OUTPUT ASSEMBLIES REPAIR (4L80-E)
Manual References
TM 9-2320-280-24P
Equipment Condition
Transmission disassembled into subassemblies
(para. 17-14).
Maintenance Level
General support
This task covers:
a.
Disassembly (1995-1996)
a.1. Disassembly (1997-1998)
b.
Cleaning
c.
Inspection
d.
Assembly (1995-1996)
d.1.
Assembly (1997-1998)
NOT E
Work area should be well-ventilated, clean, and free from blowing
dirt and dust.
1.
Remove sun gear shaft (6) from sun gear (7) and main shaft (9).
2.
Remove reaction drum (3) from output carrier assembly (11).
NOT E
Keep all bearing and races together as sets.
3.
Remove bearing and two races (5), sun gear (7), and bearing and two races (8) from output carrier
assembly (11).
NOT E
Place output carrier assembly on its side for ease of disassembly.
4.
Remove thrust washer (10) from output carrier assembly (11).
5.
Remove thrust washer (12), snapring (13), output shaft (14), and bearing and two races (15) from
internal gear (16).
6.
Remove internal gear (16) and main shaft (9) from output carrier assembly (11).
7.
Remove snapring (17) and internal gear (16) from main shaft (9).
NOTE
Internal ring and spacer ring are used on 1995 transmission only.
8.
Remove roller clutch (1), spacer ring (2), and internal ring (4) from reaction drum (3).
a. Disassembly (1995-1996)
INITIAL SETUP:
Applicable Models
M997A2, M1025A2, M1035A2,
M1043A2, M1045A2, M1097A2, M1123
Tools
General mechanic’s tool kit:
automotive (Appendix G, Item 1)
Materials/Parts
Petrolatum (Appendix B, Item 38)
Transmission fluid (Appendix B, Item 24)
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