TM-9-2320-279-20-1

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3

TM-9-2320-279-20-1 - Page 521 of 985

TM 9-2320-279-20-1

Cooling System Maintenance Instructions (Cont)

6-3. RADIATOR REMOVAL/INSTALLATION.

This task covers:

a. Removal

c. Follow-on Maintenance

b. Installation

INITIAL SETUP

Models

Equipment Condition

All

TM or Para

Condition Description

Test Equipment

TM 9-2320-279-10 Shut off engine.

None

Para 6-2

Cooling system drained.

Special Tools

Para 6-6

Fan shroud removed.

Para 6-7

Cooling system hoses and

None

tubes removed.

Supplies

Para 6-5

Radiator baffle removed.

Compound, sealing, pipe thread, Item 18,

Para 6-11

Fan removed.

Appendix C

Special Environmental Conditions

Tags,

identification, Item 48, Appendix C

None

Personnel Required

General Safety Instructions

MOS 63S, Heavy wheel vehicle mechanic (4)

None

References

None

a. Removal.

(1)

Loosen two hose clamps (1).

(2)

Remove lower radiator hose (2).

NOTE

Tag and mark hoses before removing.

(3)

(4)

(5)

(6)

Remove left and right automatic

transmission hoses (3).

Support radiator (4) with suitable lifting

device.

Remove four nuts (5) and washers (6).

Thread two upper nuts (7) all the way

down and two lower nuts (8) all the way

up.

6-5