TM-9-2320-260-34-2
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 2 OF 2
JULY 1994
TM-9-2320-260-34-2 - Page 765 of 863
17-24. PERSONNEL HEATER HEAT EXCHANGER MAINTENANCE
THIS TASK COVERS:
a. Removal
c. Installation
b. Cleaning and Inspection
INITIAL SETUP
APPLICABLE MODELS
All
TEST EQUIPMENT
Multimeter (Appendix B, Item 115)
TOOLS
General mechanic’s tool kit
(Appendix B, Item 1)
Tool kit, electrical (Appendix B, Item 106)
MATERIALS/PARTS
Three screw-assembled lockwashers
(Appendix D, Item 380)
Drycleaning solvent (Appendix C, Item 46)
Rag (Appendix C, Item 32)
REFERENCES (TM)
TM 9-2320-260-34P-2
EQUIPMENT CONDITION
●
Personnel heater flame detector switch removed
(para. 17-15).
●
Personnel heater burner removed (para. 17-21).
GENERAL SAFETY INSTRUCTIONS
●
Keep fire extinguisher nearby when working with
drycleaning solvent.
●
Compressed air source will not exceed 30 psi
(207 kpa).
●
Eyeshields must be worn when cleaning with
compressed air.
NOTE
The heat exchanger is replaced the same for early and late model
heaters. This procedure covers the early model heater.
1. Remove three screw-assembled lockwashers (4) from heater housing (5). Discard screw-assembled
lockwashers (4).
2. Separate heater housing (5) and remove heat exchanger (3).
b. Cleaning and Inspection
WARNING
●
Drycleaning solvent is flammable and will not be used near open
flame. Use only in well-ventilated places. Failure to do so may
result in injury to personnel.
●
Compressed air source will not exceed 30 psi (207 kPa). When
cleaning with compressed air, eyeshields must be worn. Failure
to wear eyeshields may result in injury to personnel,
1. Clean heat exchanger (3) and inside bore of heater housing (5) with drycleaning solvent and rag.
Dry with compressed air.
2. Inspect heat exchanger (3) for bends, cracks, stripped threads, and scoring. Repair stripped threads
if damaged. Replace heat exchanger (3) if bent, cracked, or scored.
17-64
TM 9-2320-260-34-2
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