TM-9-2350-277-20-2

CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 2 OF 6

TM-9-2350-277-20-2 - Page 170 of 783

TM 9-2350-277-20-2

PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING

LUBRICATION INSTRUCTIONS — Continued

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0155 00-150

Change 5

ITEM

NO.

INTERVAL

MAN-

HOUR

ITEM TO BE

CHECKED OR

SERVICED

CREWMEMBER

PROCEDURE

EQUIPMENT

NOT READY/

AVAILABLE

IF:

WARNING

Fuel cut-off control at driver’s position

must be pulled all the way out to

prevent engine from starting. Personnel

could be injured or killed if engine

starts during this PMCS check.

b.

Loosen the three wing nuts and clamps to

remove the engine’s rear access panel from

the crew compartment. This will access the

engine’s variable drive assembly pulley.

c.

The pulley has three jacking bolt holes with

3/8’’ course thread. Hand tighten two 3/8”

by 3” long bolts into the jacking holes.

d.

Place a small breaker bar, about 2 or 3 feet

long, across the two bolts to check backlash

on the spline drive coupling.

NOTE

Although you can turn the engine by

applying constant pressure, the idea

is to detect any backlash generated

between the engine and transmission

mating splines.

e.

As with the power method, a good spline

drive coupling will produce a muffled

sound, while a bad spline drive coupling

will produce a distinctive metallic clanking

sound.