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WATER TANK HEATER DOES NOT OPERATE PROPERLY - Continued
CHAPTER 4. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

Maintenance Manual For Tactical Fire Fighting Truck (Tfft) Model M1142 - 2 Page Navigation
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DRAFT
TM 5-4210-249-13&P-2
0184
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TFFT04732
Step 28.
Turn hydraulic generator OFF (WP 0021). Turn vehicle engine OFF
(TM 9-2320-347-10). Turn battery disconnect switch to OFF position (WP 0007). Open
water tank heater control box (WP 0301). Remove front water tank heater guard and
water tank heater cover (WP 0300). Cut red wire at butt splice in front water tank
heater. Check for continuity across red wire, from front water tank heater relay terminal,
to front water tank heater butt splice.
a.
If there is continuity, replace rear water tank heater (WP 0300).
b.
If there is no continuity, replace front water tank heater power
cord (WP 0361).
END OF TASK
FOLLOW-ON MAINTENANCE
1.
Install crew cab air conditioner/heater assembly if removed (WP 0215)
2.
Remove wheel chocks (TM 9-2320-347-10)
END OF TASK
END OF WORK PACKAGE
0184-13/(14 blank)


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