TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 432 of 1015
TM 9-2320-272-24-1
3-21. TURBOCHARGER AND COOLANT LINES (M939A2) REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
M939A2
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
Torque wrench (Appendix E, Item 146)
MATERIALS/PARTS
O-ring (Appendix D, Item 476)
Gasket (Appendix D, Item 141)
Gasket (Appendix D, Item 140)
Antiseize compound (Appendix C, Item 10)
Antiseize tape (Appendix C, Item 72)
Lubricating oil (Appendix C, Item 50)
REFERENCES (TM)
LO 9-2320-272-12
TM 9-2320-272-10
TM 9-2320-272-24P
EQUIPMENT CONDITION
l
Parking brake set (TM 9-2320-272-10).
l
Hood raised and secured (TM 9-2320-272-10).
l
Coolant drained (para. 3-53).
GENERAL SAFETY INSTRUCTIONS
Do not perform this task when exhaust system is
hot.
WARNING
Do not touch hot exhaust system components with bare hands.
Injury to personnel may result.
a. Removal
1.
Remove four clamps (1), two hoses (2), and tube (3) from turbocharger (4) and aftercooler (5).
2.
Remove two screws (7) from oil return tube (8) and turbocharger (4).
3.
Remove two clamps (9), oil return tube (8), gasket (6), and hose (10) from tube (11). Discard
gasket (6).
NOTE
Perform step 4 if tube is damaged.
4.
Remove tube (11) from engine block (12).
NOTE
l
Perform steps 5 and 6 for early model engines.
l
Perform steps 7 and 8 for late model engines.
5.
Remove oil supply hose (13) from turbocharger (4) and connector (14).
6.
Remove connector (14) from oil cooler (16).
7.
Remove oil supply hose (13) from turbocharger (4) and connector (23).
8.
Remove connector (23) and O-ring (24) from oil cooler (16). Discard O-ring (24).
9.
Loosen clamp (15) and disconnect air intake tube (20) from turbocharger (4).
10.
Loosen clamp (19) and disconnect exhaust pipe (18) from turbocharger (4).
11.
Remove four nuts (22), turbocharger (4), and gasket (21) from exhaust manifold (17). Discard
gasket (21).
3-68
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