TM 9-2320-302-20
0021 00-5
Table 1. Unit Preventive Maintenance Checks and Services (PMCS)
for the M915A3 Tractor Truck - Continued.
ITEM
NO.
INTERVAL
LOCATION
PROCEDURE
NOT FULLY MISSION
CAPABLE IF:
ITEM TO
CHECK/
SERVICE
9
(Con’t)
Semi-
annual
Engine
Compartment,
Engine
d. Check mounting hardware and attaching
hardware for looseness. Tighten or replace
any damaged component, if authorized.
WARNING
DO NOT perform fuel system checks, inspections or maintenance while
smoking or near fire, flame or sparks. Fuel may ignite, causing injury or
death to personnel and damage to vehicle.
10
Semi-
annual
Engine
Compartment,
Fuel System
a. Replace all fuel filter elements.
b. Inspect fuel lines, fuel tank, and fuel sys-
tem components for leaks and damage. If
authorized, replace damaged components.
11
Semi-
annual
Engine
Compartment,
Drive Belts and
Pulleys
a. Check for loose, missing, worn, broken,
frayed or cracked drive belts (5).
b. Check alternator and air conditioning
compressor
mounting
for
looseness.
Inspect brackets and attaching hardware
for cracks, bends, and loose mounting.
Replace damaged components as needed.
c. Use a dial indicating tensionmeter (Item
32, WP 0236 00) placed at the center of
the longest belt free-span to check belt
tension. Gage should register 80-100 lb-ft
(108-135 Nm) for alternator and AC com-
pressor belt. Gage should register 60-80
lb-ft (81-108 Nm) for fan belt. Adjust ten-
sion as required.
5
