Table 1. Preventive Maintenance Checks and Services (PMCS) for M878A2. cont'd

TM 9-2320-312-10

Table 1. Preventive Maintenance Checks and

Services (PMCS) for M878A2 - Continued.

LOCATION

ITEM TO

ITEM

CHECK/

NOT FULLY MISSION

NO.

INTERVAL

SERVICE

PROCEDURE

CAPABLE IF:

NOTE

During

Trailer Brakes

Perform this check with trailer after tractor/trailer combination is coupled.

a. Listen for air leaks at intervehicular a. Any air leaks are present.

connecting hoses, relay valve, and

air reservoirs.

b. Apply trailer brakes only and b. Brakes fail to hold tractor/trailer

attempt to move tractor/trailer com-

combination from moving.

bination.

During

Instrument

Monitor all gauges and indicator and

Panel Displays warning lights. Check that all gauges

00).

During

Brakes

a. Check brakes for pulling or grab- a. Brakes pull or grab.

bing.

b. Check that brake pedal is firm and b. Brake pedal is spongy or depresses

does not fully depress to floor.

fully to floor.

During

Steering

Check for smooth steering without Steering is erratic, pulls or has exces-

pulling to one side or excessive play in sive play.

steering wheel.

During

Power Train

Check for unusual noise or vibration

from engine, transmission, drive shaft,

axles, and wheels.

NOTE

During

Air

Conditioner

Perform the following inspection only if air conditioner is required due to

climatic conditions.

Turn air conditioner on and set blower

to maximum cooling speed settings

(WP 0005 00). Wait five minutes to

allow temperature to stabilize. Check

outlet ducts for cool air. If air is not

cooler than ambient temperature,

notify supervisor.

NOTE

If leakage is detected, further investigation is required to determine loca-

tion and cause of leak.

During

Overall

Be alert for evidence of fluid leakage.

Class III oil, hydraulic fluid, coolant or

Leakage

fuel leaks are evident.

0012 00-10