TM9-4120-370-14
TO35E9-229-1
4-60. EVAPORATOR FAN MOTORS (B3 AND B4) - Continued.
(5) Using wrench, remove four cap screws, lock washers, and flat washers from motor
(6) Carefully lift motor and fan assembly from unit
(7) Using allen wrench, loosen two setscrews in fan hub
(8) Remove fan from motor.
(9) Take care that motor shaft key is not lost.
NOTE
If motor base plate does not require removal, skip steps (10) and (11).
(10) Using wrench, remove four cap screws, lock washers, and flat washers from casing and base plate. Note
number and position of shims.
(11) Remove base plate and shims.
Installation
c.
NOTE
If motor base plate was not removed, skip step (1).
(1) Using wrench, secure base plate and shims to motor with four cap screws and lock washers and flat wash-
ers. Shims should be installed in their original position unless motor alinement changes are required.
IS in
place on motor shaft.
(2) Check to see that key
C AUTION
The fans are not identical parts. They rotate in opposite directions. Take care
that correct fan is used. See Figure 4-83 for rotation and check rotation arrow
on fan.
(3) Slip fan all the way onto motor shaft and temporarily tighten two setscrews.
(4) Place motor and fan assembly into unit and aline mounting holes.
(5) Using wrench, secure motor and fan assembly with four cap screws, lock washers, and flat washers.
(6) Loosen setscrews and slip fan down so that there is 0,06 to 0.08 (0.15 to 0,20 cm) clearance between fan
and inlet bell.