ADC AD-464 service manual

b.Shrouded Pillow Block Bearing Replacement

1)Discontinue electrical service to the dryer.

2)Remove the belt guard.

3)Loosen the bolts securing the blower motor to the motor base.

4)Remove the V-belts from the motor pulley and the pulley on the blower shaft.

CAUTION: THE BLOWER (Squirrel Cage) FAN IS LOCATED IN THE LINT COMPARTMENT.

PROPERLY LOCK and TAG OUT THE ELECTRICAL SERVICE BEFORE ENTERING THE LINT COMPARTMENT.

5)Remove both lint drawers.

6)Remove the eight (8) 1/4-20 bolts which secure the blower funnel to the blower housing assembly.

7)Remove the blower funnel.

8)Remove the two (2) left hand jam nuts and the washers.

9)Remove the blower (squirrel cage) fan along with the 3/8" x 3/8" x 3" key from the blower shaft.

10)Remove the four (4) bolts securing the shrouded pillow block bearings from the blower shaft mount.

11)Remove the complete blower shaft assembly with the shrouded pillow block bearings from the dryer.

12)To remove the shrouded pillow block bearing from the blower (squirrel cage fan) side...

a)Loosen the set screws from the shrouded pillow block bearing.

b)Clean the blower shaft prior to removal of the shrouded pillow block bearing.

13)To remove the shrouded pillow block bearing from the pulley side of the blower shaft, the pulley must be removed first...

a)Remove the bolts from the bushing.

b)Insert the bolts into the threaded holes.

c)Mark the inside of the blower motor shaft before removing.

d)Loosen the set screws on the bushing.

e)Remove the bushing and the pulley.

14)To remove the shrouded pillow block bearing...

a)Loosen the set screw from the shrouded pillow block bearing.

b)Clean the blower shaft prior to the removal of the the shrouded pillow block bearing.

26