TM-9-2320-283-20-1

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3

DECEMBER 1983

TM-9-2320-283-20-1 - Page 831 of 926

TM 9-2320-283-20-1

COOLING SYSTEM.

3-59.

THERMOSTAT AND THERMOSTAT HOUSING REPLACEMENT.

THIS TASK COVERS

a.

Removal.

b.

Cleaning and Inspection.

c.

Installation.

d.

Testing

e

Assembly

f.

Installation

INITIAL SETUP

EQUIPMENT CONDITION

APPLICABLE CONFIGURATIONS

PARAGRAPH

CONDITION DESCRIPTION

All.

3-52.

Coolant drained below

level of thermostat

housing.

TEST EQUIPMENT

None.

SPECIAL TOOLS

Seal mandrel

(15434) ST-1225.

MATERIALS/PARTS (P/N)

Tape, thread sealing

Item 32, Appendix C.

Grease, automotive and artillery

Item 7, Appendix C.

Gasket, thermostat housing

(15434) 208128.

Seal, housing

(15434) 186780.

Gasket, water outlet connection

(15434) 3019158.

PERSONNEL REQUIRED

SPECIAL ENVIRONMENTAL CONDITIONS

One (MOS-63S).

None.

REFERENCES (TM)

GENERAL SAFETY INSTRUCTIONS

TM 9-2320-283-10.

Engine off.

TM 9-2320-283-20P.

Transmission in neutral.

Park brake set.

Wait until cooling system components

TROUBLESHOOTING REFERENCES

are cool.

Paragraph 2-11.

3-314