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 414 of 1205

TM 9-2320-387-24-l

INSTRUMENTS

CIRCUIT

DIAGNOSTIC

FLOWCHART

KNOWN INFO

ELECTRICAL

GAUGES OK

INSPECT VACUUM HOSE FROM

AIR FILTER HOUSING TO

RESTRICTION GAUGE. IS THE

LINE INTACT?

POSSIBLE

PROBLEMS

AIR RESTRICTION

GAUGE

VACUUM

HOSE

I

REASON

FOR QUESTION

R the line leaks, any pressure

differential won’t be seen by the

gauge.

I

KNOWN INFO

I

VACUUM

HOSE OK

POSSIBLE

PROBLEMS

AIR RESTFtICTlON

GAUGE

DOES THE GAUGE READ YELLOW

WHEN VACUUM IS APPLIED TO

THE HOSE AND DOES IT HOLD

THE READING?

OPTIONS

APPLY VACUUM TO HOSE

(YOU CAN JUST SUCK ON

THE HOSE TO TEST IT).

REASON

FOR QUESTlON

Thii will check gauge operation.

-

2-360