DRAFT
TM 5-4210-249-13&P-1
0070
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TFFT4821
WARNING
ICON 13
Allow engine to completely cool before handling any cooling system component or
hose. Failure to comply can result in serious injury to personnel.
Step 30.
Shut vehicle engine off (TM 9-2320-347-10). Turn battery disconnect switch to OFF
position (WP 0007). Remove vehicle engine panels (TM 9-2320-347-10). Check if
crew cab heater manual shutoff valves are in open position.
If crew cab heater manual shutoff valves are not open, open heater manual
shutoff valves.
Step 31.
Check if crew cab heater supply and return hoses are free from leaks, kinks, and
damage.
a.
If crew cab heater supply and return hoses are free from leaks, kinks,
and damage, replace crew cab heater core (WP 0208).
b.
If crew cab heater supply and return hoses are not free from leaks,
kinks, and damage, replace damaged hoses (WP 0209).
0070-18