TM 9-2320-387-24-l
ENGINE COOLING
I
KNOWN INFO
I
COOLANT OK
THERMOSTAT
OK
POSSIBLE
PROBLEMS
COOLING COMPONENTS
SERPENTINE
BELT
WATER PUMP & PULLEY
KNOWN INFO
I
COOLANT OK
PRESSURE CAP OK
THERMOSTAT
OK
POSSIBLE
PROBLEMS
HOSES
SURGE TANK
RADIATOR
THERMOSTAT
ENGINE FAN
WATER PUMP & PULLEY
KNOWN INFO
COOLANT OK
PRESSURE CAP OK
THERMOSTAT
OK
HOSES OK
SURGE TANK OK
OIL COOLER OK
POSSIBLE
PROBLEMS
RADIATOR
ENGINE FAN
WATER PUMP 8 PULLEY
DIAGNOSTIC FLOWCHART
fla@
I
TEST OPTIONS
/
INSPECT THE PRESSURE CAP.
PRESSURE TESTER
IS IT IN GOOD CONDITION?
I
REASON FOR QUESTION
TEST OPTIONS
INSPECT ALL RADIATOR HOSES,
LOOK.
COOLANT HOSES, SURGE TANK,
RADIATOR, OIL COOLER, AND
FllTlNGS FOR DAMAGE,
BLOCKAGE, OR LARGE LEAKS. IS
EVERYTHING IN GOOD SHAPE?
REASON FOR QUESTION
Physical damage and blocked
I
I
passages can cause cooling
IF BLOCKED. OTHERWISE,
NOTIFY DS MAINTENANCE
-CHAPTER
i
r
-7
6
IS THE ENGINE FAN WORKING
PROPERLY?
I- OPTIONS
LOOK -- SEE DESCRIPTION
OF
OPERATION
AT RIGHT.
REASON FOR QUESTION
The engine fan helps cool the
engine.
2-162
--
