TM 5-3805-294-23-4
FIELD MAINTENANCE
CAB HEATER CORE REPLACEMENT
INITIAL SETUP:
Equipment Condition (cont.)
Tools and Special Tools
Tool Kit, General Mechanic's: Automotive
Negative battery cable disconnected. (WP 0521)
(Volume 5, WP 0796, Table 2, Item 119)
Cab rear tray and cover removed. (WP 0566)
Pan, Drain (Volume 5, WP 0796, Table 2, Item
55)
Time to Complete
2.4 Hour(s)
Materials/Parts
Rags, Wiping (Volume 5, WP 0797, Table 1, Item
34)
Personnel Required
Construction Equipment Repairer 91L (1)
References
TM 5-3805-294-24P: Fig. 122 (Volume 5,
WP 0794)
DA FORM 5988-E or DA FORM 2404 (Volume 5,
WP 0794)
Equipment Condition
Machine safely parked and shut down
(TM 5-3805-294-10). (Volume 5, WP 0794)
REMOVAL
WARNING
During normal machine operation, cooling system can become very hot. Do not remove
heater hoses while cooling system is hot. Allow cooling system to cool prior to removing
heater core. Failure to comply may result in injury or death to personnel.
NOTE
Ensure seat stand is positioned all the way forward prior to removing heater core.
CAUTION
Valves should turn with minimal force. If valves do not turn easily, they are probably already
closed. Do not apply a large amount of force to turn valves. Failure to comply may result in
damage to equipment.
0560-1