TM-9-2320-283-20-2

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

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 2 OF 3

DECEMBER 1983

TM-9-2320-283-20-2 - Page 100 of 852

TM 9-2320-283-20-2

ELECTRICAL SYSTEM.

3-81.

HEATER FAN SWITCH REPLACEMENT (Continued).

LOCATION/ITEM

ACTION

REMARKS

C.

OPERATIONAL CHECK.

14. Engine run

Turn left to accessory

Refer to TM 9-2320-283-

switch (1)

10.

15. Heater fan

Rotate item (6) through all

switch (4)

positions (LO, MED, HI) and

verify the heater fan in-

creases and decreases accord-

ingly. Verify that fan motor

shuts off with item (6) set

to OFF.

NOTE

Follow-on maintenance action required:

None.

3-472