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 123 of 926

TM 9-2320-283-20-1

Table 2-1.

Unit Level Preventive Maintenance Checks And Services M915A1

Procedures:

Item

Item to be

Not Mission

No.

Interval

Inspected

Capable If:

7

Semi-

Engine

Check

for

missing,

broken,

Any drivebelt is

Annual

Acces-

cracked and frayed drivebelts,

missing or bro-

sory

dry rot, excessive fraying and

ken.

Belt fiber

Drive

cracks.

has more than

one crack (1/8

Belt inch in depth or

50% of belt

thickness) or

has frays more

than 2 inches

long.

8

Semi-

Water

a.

Inspect

the

pulley

for

Annual

Pump

alignment (paragraph 3-63).

b.

Check the belt for proper

tension (1/2 to 3/4 inch, 1.2

to 1.9 cm) deflection when you

press down firmly.

c.

Inspect the water pump for

leaks and fan shrouds to see if

they are securely mounted.

9

Semi-

Thermo-

Inspect thermostat housing and

Annual

stat

water manifold for leaks.

Housing

and

Front,

Center,

and Rear

Water

Mani-

folds

Change 1

2-10