TM 9-2320-289-20
10-12. HEATER
BLOWER MOTOR,
FAN,
RESISTOR,
AND CAPACITOR
REPLACEMENT.
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Equipment Condition
Materials/Parts
• Rear
battery
removed
(if
removing
blower
• One blower motor seal
motor and fan). (See paragraph 4-39)
• One
locknut
Too/s/Test Equipment
• ½ in. drive metric socket set
a.
REMOVAL
If removing
If removing
If removing
NOTE
resistor (7), perform step 1.
capacitor (3), perform step 2.
heater blower motor (2) and fan (13), perform steps 2-4.
1.
Disconnect leads (8) from resistor (7). Remove 2 screws (6) and remove resistor.
2.
Disconnect leads (5) from capacitor (3). Remove screw (4) and capacitor.
3.
Disconnect vent hose (9) from heater blower motor (2). Remove 5 screws (10), heater blower
motor and fan (13) assembly, and
4.
Remove locknut (11), washer (12),
if damaged. Discard locknut.
b.
INSTALLATION
If installing heater blower
If in tailing capacitor (3),
seal (14). Discard seal.
and fan (13). Replace heater blower motor (2) and/or fan
NOTE
motor (2) and fan
perform step 3.
(13), perform steps 1-3.
If installing resistor (7), perform step 4.
1.
Install fan (13) on heater blower motor (2) with washer (12) and new locknut (11).
2.
Install new seal (14) on heater blower motor (2) assembly and position on blower motor case
(1). Install 5 screws (10). DO NOT install upper right-hand screw (4) at this time. Connect vent
hose (9) to heater blower motor.
3.
Install capacitor (3) with screw (4). Connect capacitor leads (5).
4.
Install resistor (7) with 2 screws (6). Connect resistor leads (8).
10-34
