TM 10-4520-259-13&P
REPAIR
a.
Mark (1) motor housing (2) and end plates (3) for ease in reassembly.
b.
Remove four bolts (4) holding end plates (3) to housing (2).
c.
Remove bearings (5) from motor (6). Clean all parts except bearings with a clean dry cloth. Clean bearings with
a clean, lint free cloth moistened in light engine oil.
d.
Inspect for broken, cracked or burned motor (6) and bent shaft (7), bent fins (8), end plate (9), and damaged
wiring. If any of these items are damaged, replace motor.
e.
If bearings (5) are rough or excessively worn, replace bearings.
f.
Install bearings (5) onto motor (6). Install end plates (9) into motor housing (2) in alignment with mark (1) on
motor housing.
g.
Secure using four bolts (4).
INSTALL
a.
To install blower and fuel pump motor, set mounting plate (12) in place on motor (5) and secure with four
machine screws (11).
b.
Insert key (10) on shaft (8) and press blower wheel (9) on
c.
Tighten setscrew on blower wheel (9).
d. Install coupling (7) with insert (1) on shaft (8) and tighten setscrew (2).
e. Set motor (5) in place on blower assembly (6) and secure with four capscrews (3) and four lockwashers (4).
f. Install blower assembly to water heater as in paragraph 5-8.
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