TM-9-2320-387-24-1

TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1

DECEMBER 1997

CHANGE 1

TM-9-2320-387-24-1 - Page 533 of 1205

TM 42320-387-24-l

DCA TROUBLESHOOTING

DIAGNOSTIC

FLOWCHART

KNOWN INFO

STEXE-R OK

CABLES OK

TK OK USING PULSE

TACHOMETER

POSSIBLE

PRbBLEMS

VEHICLE SYSTEMS

REMOVE THE TACHOMETER

FROM THE ENGINE AND

INSPECT IT. IS IT OK?

VISUAL INSPECTION

- CHECK

FOR BROKEN WIRES OR

CONNECTORS AND WORN

PARTS. ALSO CHECK THE SLOT

IN THE OIL PUMP DRIVE.

REASON

FOR OUESllON

If the tachometer

is no good. you

can’t expect good test results.

/_

I

I

TACHOMETER.

VEHICLE TACHOMETER

STE/lCE-R OK

I

POSSIBLE

PROBLEh!;

VEHICLE SYSTEMS

DCA

t

82

1

TEST OPllONS

/

INSTALL THE TACHOMETER

FROM THE TK KIT. RUN THE

ORIGINAL TEST WITH THE

VEHICLE TEST METER IN THE TK

MODE. IS THE VEHICLE OK?

SEE THE CHART ON THE

FOLDOUT PAGE TO RUN THE

TK VERSION

OF THE

TEST YOU WANT.

REASON

FOR OUESTlON

You want to know if the vehicle

is OK

IF YOU CAME FROM ANOTHER

L

PARAGRAPH,

RETURN THERE AND FOLLOW

83

1

TEST OPTIONS

DID THE ORIGINAL DCA TEST

NONE

STEIICE-R OK

GIVE A CORRECT RESULT?

POSSIBLE

PROBLEMS

I-

2-486