Remove the eight mount bolts (Item 1) [Figure 80-70-6] from the blower wheel cover.
Remove the blower wheel cover from the fan housings.
Remove the four mount bolts (Item 2) [Figure 80-70-6] from the fan motor mount.
Remove the fan motor mount.
Remove the fan motor assembly from the housing.
Check the blower housing (Item 1) and fan motor mount (Item 2) [Figure 80-70-7] for wear and replace as needed.
Remove the outside rings (Item 1) and fan wheel covers (Item 2) [Figure 80-70-8] from the fan motor and blower wheels.
Inspect the end rings and fan wheel covers for wear and replace as needed [Figure 80-70-9].
Remove the outside blower wheel clamp (Item 1) [Figure 80-70-10] & [Figure 80-70-11] from the blower wheel.
Remove the inside blower wheel clamp (Item 1) [Figure 80-70-12] from the blower wheel.
NOTE: Before removing blower wheels, mark their orientation to ensure they are assembled back on the correct side and the fins are facing the same direction.
Remove the blower wheel (Item 1) and inside ring (Item 2) [Figure 80-70-13] from the blower fan motor shaft.
Repeat the procedure for the other blower wheel.
