Carrier MMY-MAP0724FT9UL Service Manual page 226

No. Part to be replaced
2 Propeller fan
Fan motor
(Continude)
Work procedure
2. CAUTION for replacement or attachment
1) Insert the propeller fan while aligning the D-cut
surface of the fan motor shaft with the arrow mark
( ) on the fan.
(If the propeller fan is tightly mounted on the shaft
without securing alignment between the D-cut
surface and the arrow mark (
fan to melt and fall off due to friction heat.)
2) Be sure to put the square washer in place.
(Otherwise, unusual noises and vibrations may
result.)
3) Tighten the flange nut at a torque of 11.1 ft•lbs
(15 N•m).
(To tighten the flange nut, turn it counterclockwise.)
4) Remove the clamp filter from the fan motor with
trouble, then attach the clamp filter to the substitution
in the same way as before replacement. (Wind the
fan motor lead once around the clamp filter.)
), it may cause the
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Remarks
D-cut surface of fan
motor shaft
Arrow mark ( ) of fan
To be aligned with D-cut surface
4) Clamp filter