TM-9-2320-283-34-1

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

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 1983

TM-9-2320-283-34-1 - Page 127 of 624

TM 9-2320-283-34-1

COOLING SYSTEM.

3-17.

RADIATOR REPAIR (Continued).

LOCATION/ITEM

ACTION

REMARKS

A.

CLEANING

1.

Radiator assembly

a. Clean and flush

Refer to TM 750-254

(14)

(Cooling Systems:

Tactical Vehicles).

b. Dry thoroughly.

B.

TESTING.

NOTE

• The following specifications should be noted when testi ng radiator:

a.

Designed

for 10 psi

cooling system.

b.

Pressure valve in radiator cap opens between 9 and 11 psi.

c.

Vacuum valve in radiator cap opens between 0 and 8 psi below

atmospheric pressure.

• -Radiator cap is tested after repair

and installation of radiator has

been

made. Replace defective

cap at that time.

2.

Radiator assembly

Test

Refer to TM 750-254

(14) and cap (1)

(Cooling Systems:

Tactical Vehicles).

Repair known defects as

prescribed on next page.

3-74