Carrier PrimeLINE 69NT40-561-200, Operation And Service Manual

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T-362 7–24
3. Remove the four 1/4-20 x 3/4 long bolts that are located under the fan that support the motor and stator
housing. Remove the motor and plastic spacer.
7.17.3 Assemble the Evaporator Fan Assembly
1. Assemble the motor and plastic spacer onto the stator.
NOTE
When removing the black nylon evaporator fan blade, care must be taken to assure that the blade is
not damaged. In the past, it was a common practice to insert a screwdriver between the fan blades to
keep it from turning. This practice can no longer be used, as the blade is made up of a material that
will be damaged. It is recommended that an impact wrench be used when removing the blade. Do not
use the impact wrench when reinstalling, as galling of the stainless steel shaft can occur.
2. Apply Loctite to the 1/4-20 x 3/4 long bolts and torque to 0.81 mkg (70 inch-pounds).
3. Place one 5/8 flat washer on the shoulder of the fan motor shaft. Insert the key in the keyway and lubricate
the fan motor shaft and threads with a graphite-oil solution (such as Never-seez).
4. Install the fan onto the motor shaft. Place one 5/8 flat washer with a 5/8-18 locknut onto the motor shaft and
torque to 40 foot-pounds.
Figure 7.11 Evaporator Fan Assembly
1) Fan
2) Washer
3) Nut
4) Screws / Washers
5) Protector
6) Motor
7) Stator
- - - - -
5. Install the evaporator fan assembly in reverse order of removal. Torque the four 1/4-20 clamp bolts to 0.81
mkg (70 inch-pounds). Connect the wiring connector.
6. Replace the access panel making sure that the panel does not leak. Make sure that the TIR locking device
is lockwired. Torque the access panel hardware to 69 kg-cm (60 in/lbs.) using a crossing pattern as shown in
Figure 7.12 . Repeat the pattern twice for a proper seal.
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