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 841 of 1258
1 7 - 1 4 . TRANSMISSION DISASSEMBLY INTO SUBASSEMBLIES (4L80-E)
INITIAL SETUP:
Applicable Models
M997A2, M1025A2, M1035A2,
M1043A2, M1045A2, M1097A2, M1123
Tools
General mechanic’s tool kit:
automotive (Appendix G, Item 1)
Dial indicator (Appendix G, Item 95)
Special Tools
Transmission holding fixture (Appendix G, Item 29)
Transmission holding fixture base
(Appendix G, Item 30)
Adapter (Appendix G, Item 41)
Slide hammer adapter (Appendix G, Item 32)
Oil pump remover/installer (Appendix G, Item 43)
Special Tools (Cont’d)
Torx adapter (Appendix G, Item 28)
Gear unit remover/installer Appendix G, Item 44)
Personnel Required
One mechanic
One assistant
Equipment Condition
Transmission prepared for disassembly
(para. 7-10).
General Safety Instructions
Torque converter must be supported during removal.
Maintenance Level
General support
TM 9-2320-280-34
Change 1
1 7 - 6 3
This task covers:
a.
Torque Converter
b.
Holding Fixture
c.
Speed Sensors
d.
Oil Pan and Filter Assembly
e.
Control Valve Assembly (1995 - 1996)
e.1.Control Valve Assembly (1997 - 1998)
f.
Front Servo
g.
Rear Servo
h.
Parking Lock Pawl and Actuator Assembly
i.
Front End Play Check (Measured)
j.
Rear Unit End Play Check (Measured)
k.
Pump Assembly
l.
Turbine Shaft and Overdrive Carrier Assembly
m. Forward Clutch Assembly
n.
Direct Clutch Assembly
o.
Intermediate Clutch Assembly
p.
Gear Unit Assembly and Rear Band
q.
Center Support Assembly
a. Torque Converter
WARNING
Torque converter must be supported during removal and
installation. Failure to do this may cause injury to personnel or
damage to equipment.
NOTE
Be certain torque converter turns freely. Record any abnormal
looseness or noises.
Remove torque converter (2) from transmission (1).
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