TM-9-2320-361-34
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
MAY 1992
TM-9-2320-361-34 - Page 665 of 764
TM 9-2320-361-34
17-9. ENGINE COOLANT HEATER BURNER MAINTENANCE
THIS
TASK COVERS:
a. Removal
c. Installation
b. Cleaning and Inspection
INITIAL SETUP
APPLICABLE MODELS
EQUIPMENT CONDITION
All
Engine
coolant heater fuel tube and preheat resistor
removed (para. 17-8).
TEST
EQUIPMENT
..
Multimeter (Appendix B, Item 3)
GENERAL
SAFETY INSTRUCTIONS
●
Keep fire extinguisher
nearby
when
using
TOOLS
drycleaning solvent.
General mechanic’s tool kit
●
Compressed air source will not exceed 30 psi
(Appendix B, Item 1)
(207 kPa).
Tool kit, electrical (Appendix B, Item 2)
●
Eyeshields must
be worn when cleaning with
compressed air.
REFERENCES (TM)
TM 9-2320-361-34P
MATERIALS/PARTS
Gasket (Appendix F, Item 47)
O-ring (Appendix F, Item 174)
Drycleaning
solvent (Appendix C,
Item 24)
Remove four nuts (5), clamps (6), hook bolts (7), burner (4), O-ring (3), and gasket
(2) from heater
exchanger (1). Discard O-ring (3)
and gasket (2).
a. Removal
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.
c. Installation
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.
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).
17-22
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