TM 9-2320-260-34-2
17-10. ENGINE COOLANT HEATER BURNER MAINTENANCE
THIS TASK COVERS:
c. Installation
a. Removal
b. Cleaning and Inspection
REFERENCES (TM)
APPLICABLE MODELS
TM 9-2320-260-34P-2
All
EQUIPMENT CONDITION
TEST EQUIPMENT
Engine coolant heater fuel tube and preheat resistor
Multimeter (Appendix B, Item 115)
removed (para. 17-9).
TOOLS
GENERAL SAFETY INSTRUCTIONS
General mechanic's tool kit
q Keep fire extinguisher nearby when using
(Appendix B, Item 1)
drycleaning solvent.
Tool kit, electrical (Appendix B, Item 106)
Compressed air source will not exceed 30 psi
MATERIALS/PARTS
(207 kPa).
O-ring (Appendix D, Item 283)
Eyeshields must be worn when cleaning with
Gasket (Appendix D, Item 106)
compressed air.
Drycleaning solvent (Appendix C, Item 48)
a.REMOVAL
Remove four nuts (5), clamps (6), hook bolts (7), burner (4), O-ring (3), and gasket (2) from heat
exchanger (1). Discard O-ring (3) and gasket (2).
b. Cleaning and Inspection
WARNING
Drycleaning solvent is flammable and will not be used near open
q
flame. Use only in well-ventilated places. Failure to do so may
result in injury to personnel.
q 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.
Inspect burner (4) for scorched and charred surfaces. If scorched or charred, clean burner (4) surfaces
with wire brush, wipe clean with drycleaning solvent, and dry. Replace burner (4) if insulating pad is
charred or parts are missing.
c. Installation
Position new gasket (2), new O-ring (3), and burner (4) on heat exchanger (1) and install with four hook
bolts (7), clamps (6), and nuts (5).
17-24
