Carrier 50GCQ Series Service And Maintenance Instructions page 9

Disassembling Motor and Fan Assembly
See Fig. 12.
1. Remove 6 screws from retaining rings in the top of the fan
rotor.
2. Remove rotor from motor.
3. Remove 4 screws connecting motor to stator flange.
4. Remove stator from motor.
5. If required, remove stator limit switch on aluminum stator.
6. Remove 3 screws from the heat shield. Retain the heat
shield if a new heat shield has not been ordered.
Fig. 12 — Disassembling Motor and Fan Assembly
Reassembly of Motor and Fan Assembly
See Fig. 13.
1. Install heat shield on motor with 3 no. 8-32 x 3/8 in. thread
cutting screws (P/N: AK92AB100). Tighten to 30 in.-lb
(3.39 Nm).
2. Place motor on flat surface.
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Fig. 13 — Fan System Re-Assembly
3. If required, install stator limit switch on aluminum stator with
2 no. 10 x 5/8 in. hex head screws (P/N: AL48AM217).
Tighten to 50 in.-lb (5.65 Nm).
4. If required, insert composite ring into aluminum stator
where pegs match up with holes.
5. Line up rectangle keyway in the center of stator with rect-
angle feature on motor and set stator onto motor.
6. Install 4 no. 10-32 x 1/2 in. hex head machine screws
(P/N: AD07AB126) to connect aluminum stator to motor.
Tighten to 23 in.-lb (2.6 Nm).
7. Fit grommet on motor wire harness into keyhole feature on
the side of the stator and pull wire harness out through
grommet.
8. Install rotor on motor by lining up one of 9 holes on com-
posite rotor with one of 9 holes on motor flange. This can
be done by adjusting motor and the top of the motor hub
and aligning using a 3/16 in. Allen key or similar pin.
Press fan rotor down until it is flush with the motor flange.
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