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 172 of 783

TM 9-2350-277-20-2

PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING

LUBRICATION INSTRUCTIONS — Continued

0155 00

0155 00-152

Change 5

ITEM

NO.

INTERVAL

MAN-

HOUR

ITEM TO BE

CHECKED OR

SERVICED

CREWMEMBER

PROCEDURE

EQUIPMENT

NOT READY/

AVAILABLE

IF:

e.

On a sharp angle through this opening, you

will see the back side of the flywheel, as

well as the clearance holes on the flywheel

but through the opening you can only see

one hole at a time.

f.

Looking at the clearance holes, you can also

see the studs and locking nuts that hold the

spline drive ring in place. The spline drive

ring studs and nuts are designed to protrude

into the flywheel’s clearance holes and

clear the flywheel’s holes by approximately

1/4’’.

g.

As in the audio method, use the 3/8’’ bolts

and the breaker bar to detect any backlash.

Turn the engine manually to position one of

the flywheel’s clearance holes in the center

of the flywheel’s cover opening for visual

accessibility.

h.

As the person in the crew compartment

moves the engine, the person under the

vehicle looking into the access hole will

be able to detect one of the following two

relative movements on the spline drive

coupling.

1)

When the spline drive coupling is in

good condition, you can only detect

unit movements because the clearance

between the mating spline teeth is just

a few thousandths of an inch.