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TM 5-4210-220-12
4-19. WINTERIZATION SYSTEM-Continued
4-19.5 Winterization Heater-Continued
m.
Electric Motor Repair
NOTE
This
can
be
replaced
without
removing complete unit from truck.
(1)
Remove burner unit as described in section
h, steps 1 thru 4 preceding.
(2)
Unplug ignition leads and solenoid wires
from motor protection cover assembly (3).
(3)
Remove four screws (1) and washers (2).
Remove protection cover (3) from burner
unit and disconnect motor connections (4)
from cover assembly.
(4)
Remove three screws (6) and washers (7)
attaching motor mounting flange (8) to
blower housing (12).
(5)
Remove half clutch (9) from motor shaft.
(6)
Remove three screws (10) and washers
(11) attaching motor mounting flange (8) to
motor (5).
(7)
Replace motor (5).
(8)
Place new motor (5) in motor mounting flange (8) and secure using screws (10) and washers (11).
(9)
Install half clutch (9) on motor shaft.
(10)
Place mounting flange assembly on fan housing (12). Install three screws (6) and washers (7)
using screws and washers.
(11)
Inspect engagement of two half clutches (9). If positioning of motor half clutch has to be adjusted
remove motor and mounting flange assembly. Reposition motor half clutch. Recheck engagement
when re-installed.
(12)
Tighten screws (6) and washers (7).
(13)
While holding protection cover, reconnect motor connections.
(14)
Install protection cover (3) with four screws (1) and washers (2).
(15)
Install burner assembly in truck as described in h. preceding.
4-308
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