TM-9-2320-272-24-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 2 OF 4
JUNE 1998
TM-9-2320-272-24-2 - Page 811 of 991
TM 9-2320-272-24-2
4-15. FLYWHEEL RING GEAR MAINTENANCE
THIS TASK COVERS:
a. Removal
b. Installation
INlTIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
M939/A1
TM 9-2320-272-24P
TOOLS
EQUIPMENT CONDITION
General mechanic’s tool kit (Appendix E, Item 1)
Engine mounted on repair stand (para. 4-9).
a. Removal
WARNING
Support ring gear when removing flywheel screws. Ring gear may
fail if not supported, causing injury to personnel.
CAUTION
Lock ring gear to prevent crankshaft from turning before removing
screws.
NOTE
Flexplate and ring gear will be an assembly.
Remove six screws (1), washers (2), clutch spacer (3), flexplate (4), ring gear (5), and adapter plate (6)
from crankshaft rear flange (7).
b. Installation
Install adapter plate (6), ring gear (5), flexplate (4), and clutch spacer (3) on crankshaft rear flange (7)
with six washers (2) and screws (1). Tighten screws (1) alternately 200-220 lb-ft (271-298 N-m).
4-129
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