TM 9-2320-260-34-2
17-4. ENGINE COOLANT HEATER BLOWER MOTOR MAINTENANCE
THIS TASK COVERS:
c. Installation
a. Removal
b. Cleaning and Inspection
REFERENCES (TM)
APPLICABLE MODELS
TM 9-2320-260-20
All
TM 9-2320-260-34P-2
TEST EQUIPMENT
EQUIPMENT CONDITION
Multimeter (Appendix B, Item 115)
Engine coolant heater removed (TM 9-2320-260-20).
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
Compressed air source will not exceed 30 psi
(207 kPa).
MATERIALS/PARTS
q Eyeshields must be worn when cleaning with
Four screw-assembled lockwashers
compressed air.
Screw-assembled lockwasher
Tiedown strap (Appendix C, Item 28)
Drycleaning solvent (Appendix C, Item 48)
Rag (Appendix C, Item 32)
NOTE
Tag wires for installation.
a. Removal
1. Remove four screw-assembled lockwashere (11) and guard (12) from heater housing (13). Discard
screw-assembled lockwashers (11).
2. Remove tiedown strap (6) from heater wiring. Discard tiedown strap (6).
3. Remove nut-assembled lockwasher (2), ground lead (3), air tube (4), and elbows (1) and (5) from
heater housing (13).
4. Remove screw-assembled lockwasher (8) and wire (7) from heater component bracket (14). Discard
screw-assembled lockwasher (8).
5. Remove four nut-assembled lockwashers (10) and blower motor (9) from heater housing (13).
b. Cleaning and Inspection
1. Inspect blower motor (9) for dirt, grease, and carbon. Remove all dirt, grease, and carbon.
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