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 893 of 926

TM 9-2320-283-20-1

COOLING SYSTEM.

3-66.

FAN CLUTCH AIR VALVE REPLACEMENT (Continued).

LOCATION/ITEM

ACTION

REMARKS

D.

OPERATIONAL CHECK.

9

Engine

Start

Refer to TM 9-2320-283-10.

10

Fan (1)

a

With air system pressure

above 75 psi and engine

water temperature below

190°F, item (1) should not

be rotating.

b

When engine water tempera-

ture reaches 190°F, item

(1) should begin rotating.

11

Engine

Shutdown

Refer to TM 9-2320-283-10.

NOTE

Follow-on maintenance action required:

None.

3-376