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 124 of 1205
TM
9-2320-387-24-l
COOLING SYSTEM
I
KNOWN
INFO
I
NONE
1
POSSIBLE
PROBLEMS
1
TEMPERATURE
GAUGE
TEMPERATURE
SENDER
ENGINE
COOLING
SYSTEM
OIL COOLING
SYSTEMS
SERPENTINE
BELT
CONTROL
VALVE
KNOWN
INFO
TEMPERATURE
GAUGe
IS BELOW 240°F (116°C)
AT ALL TIMES.
POSSIBLE
PROBLEMS
1
TEMPERATURE
GAUGE
TEMPERATURE
SENDER
ENGINE COOLING
SYSTEM
OIL COOLING
SYSTEMS
SERPENTlNE
BELT
CONTROL
VALVE
KNOWN
INFO
I-EMPERATURE
GAUGE
SEEMS TO WORK OK
POSSIBLE
PROBLEMS
-EMPERATIJRE
GAUGE
‘EMPERATURE
SENDER
ENGINE COOLING SYSTEh
XL COOLING
SYSTEMS
SERPENTINE BELT
:ONTROL
VALVE
2-62
I
S THE ENGINE TEMPERATURE
;AUGE BELOW FULL SCALE AT
ALL TIMES?
DIAGNOSTIC
FLOWCHART
r OPTIONS
LOOK.
REASON
FOR QUESTION
The
engine should not reach
temperatures
over 240°F (116%).
DOES THE TEMPERATURE
GAUGE
READ BELOW 120°F (49°C) WHEN
THE ENGINE IS COLD AND THEN
INDICATE HIGHER TEMPERATURES
AS THE ENGINE WARMS?
r OPTIONS
VISUAL
REASON
FOR QUESTION
You
want to know if the
gauge is working properly.
INSTRUMENTS,
.-
I
I DOES THE ENGINE APPEAR TO BE
I PROPERLY COOLED WITH NO
I EVIDENCE OF OVERHEATING?
OPTIONS
LOOK.
REASON
FOR QUESTION
If
the engine is overtreating
with the temperature
gauge
below full scale,
both the
ENGINE COOLING,
Page 2-159 AND THEN
INSTRUMENTS,
temperature
sending system
and the engine cooling are
faulty.
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