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 398 of 1205

* TM 9-2320-387-24-l

INSTRUMENTS CIRCUIT

KNOWN INFO

WIRING OK

POSSIBLE

PROBLEMS

GAUGE

SENDING

UNIT

KNOWN

INFO

WlRlNG OK

POSSIBLE

PROBLEMS

GAUGE

SENDING

UNlT

RECONNECT WIRE 27H AT THE

OIL PRESSURE GAUGE. DISCON-

NECT WIRE 36A AT THE OIL

PRESSURE SENDING UNIT.

WITH THE ROTARY SWITCH

IN THE RUN POSITION, DOES

THE GAUGE READ OFF SCALE

ABOVE 120 PSI (827 kPa)?

DIAGNOSTIC

FLOWCHART

r OPTIONS

TRY IT.

REASON

FOR QUESTlON

This will detemine

if the

gauge can respond to an

input signal.

TEST

OPTIONS

WITH THE ROTARY SWITCH IN

TRY rr.

THE RUN POSITION, SHORT WIRE

36A TO ENGINE GROUND AT THE

OIL PRESSURE SENDING UNIT.

DOES THE GAUGE READ AT OR

BELOW ZERO?

REASON

FOR QUESTION

This will determine if the

I

gauge can respond to an

.

.

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