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 518 of 1015

3-54. COOLANT

TM 9-2320-272-24-1

THIS TASK COVERS:

a.

Radiator Inlet Hoses and Tube Removal

f.

Transmission Oil Cooler Hoses and Tubes

b.

Thermostat Housing Hose, Radiator

Installation

Bypass Tube, and Hose Removal

g.

Radiator Outlet Hoses and Tee Installation

c.

Surge Tank Hose Removal

h.

Surge Tank Hose Installation

d.

Radiator Outlet Hoses and Tee Removal

i.

Thermostat Housing Hose, Radiator Bypass

e.

Transmission Oil Cooler Hoses and

Tube, and Hose Installation

Tube Removal

j.

Radiator Inlet Hoses and Tube Installation

INITIAL SETUP:

APPLICABLE MODELS

M939/A2

TOOLS

REFERENCES

(TM)

TM 9-2320-272-10

TM 9-2320-272-24P

General mechanic’s tool kit (Appendix E, Item 1)

EQUIPMENT

CONDITION

MATERIALS/PARTS

• Parking brake set (TM 9-2320-272-10).

• Hood raised and secured TM 9-2320-272-10).

Two locknuts (Appendix D, Item 313)

• Right splash shield removed (TM 9-2320-272-10).

• Coolant drained (para. 3-53).

1.

Loosen two clamps (2) and remove radiator inlet hose (1) from radiator (3) and inlet tube (18).

2.

Loosen two clamps (17) and remove hose (8) from thermostat housing (16) and inlet tube (18).

3.

Remove two locknuts (4), screws (7), clamps (6), and inlet tube (18) from upper radiator bracket (5).

Discard locknuts (4).

1.

Loosen two clamps (14) and remove thermostat hose (15) from thermostat housing (16) and bypass

tube (9).

2.

Loosen clamp (10) and remove tube (9) from hose (11).

3.

Loosen clamp (12) and remove hose (11) from tee (13).

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