TM-9-2320-280-20-1

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 1 OF 3

JANUARY 1996

TM-9-2320-280-20-1 - Page 358 of 888

TM 9-2320-280-20-1

STARTER CIRCUIT

2-264

Change 1

KNOWN INFO

POSSIBLE PROBLEMS

TEST OPTIONS

REASON FOR QUESTION

KNOWN INFO

POSSIBLE PROBLEMS

TEST OPTIONS

REASON FOR QUESTION

NO

YES

NO

YES

3

DOES THE ENGINE CRANK AT

LEAST 200 RPM?

CABLES & CONNECTORS

APPEAR OK

BATTERIES

STARTER/SOLENOID

ROTARY SWITCH

ENGINE LOCK

PCB/DISTRIBUTION BOX

1. LISTEN

2. STE/ICE-R TEST 10

(Page 2-734)

If the engine cranks you know the

engine is not locked and the

rotary switch is OK.

GO TO A,

Page 2-268;

H Page 2-296

4

DOES THE STARTER CRANK THE

ENGINE WITHOUT ANY GRINDING,

SQUEAKING, OR UNUSUAL

NOISE?

ROTARY SWITCH OK

ENGINE NOT LOCKED

PCB/DISTRIBUTION BOX

OK

STARTER

STARTER SHIMS

FLY WHEEL

BATTERIES

LISTEN

This is a check for mechanical

problems such as improperly

shimmed starter, damaged

flywheel, or burnt starter.

GO TO B,

Page 2-272

GO TO 5,

Page 2-266

FROM 2,

Page 2-262

DIAGNOSTIC FLOWCHART