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 544 of 1015

3-61. SURGE
TM 9-2320-272-24-1
THIS TASK COVERS:
a.
Radiator Vent and Manifold Return
c. Surge Tank Installation
Hoses Removal
d. Radiator Vent and Manifold Return Hoses
b. Surge Tank Removal
Installation
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
M939/A1
TM 9-2320-272-10
TOOLS
TM 9-2320-272-24P
General mechanic’s tool kit (Appendix E, Item 1)
EQUIPMENT CONDITION
Torque wrench (Appendix E, Item 144)
• Hood raised and secured (TM 9-2320-272-10).
MATERIALS/PARTS
• Parking brake set (para. 3-301).
• Right splash shield removed (TM 9-2320-272-10).
Four keywashers (Appendix D, Item 267)
Locknut (Appendix D, Item 288)
• Cooling system drained as required (para. 3-63).
Antiseize tape (Appendix C, Item 72)
1.
Disconnect radiator vent hose (7) from adapter (13) on radiator (8).
2.
Remove adapter (13) and elbows (12) and (11) from radiator (8).
3.
Remove screw (5), washer (6), hose clamp (4), and spacer (10) from engine bracket (9).
4.
Disconnect manifold return hose (2) from elbow (3) on water manifold (14).
5.
Remove manifold return hose (2) and radiator vent hose (7) from surge tank (1).
6.
Remove elbow (3) from water manifold (14).
1.
Remove cap (15) from surge tank (1) and disconnect cap (15) from retaining pin (16).
2.
Remove pin (19) and chain (17) from surge tank support (24).
3.
Remove screw (18), washer (21), and surge tank support extension (28) from surge tank (1).
4.
Remove locknut (23), screw (20), and surge tank support (24) from lifting eye (22). Discard locknut (23).
5.
Loosen clamp (27) and disconnect engine oil cooler hose (26) from surge tank (1).
6.
Unlock four keywashers (30) and remove four screws (29), keywashers (30), washers (31), and two
exhaust manifold clamps (32) from cylinder head (25). Discard keywashers (30).
7.
Remove surge tank (1) from vehicle.
3-180


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