8. User Servicing Instructions and Troubleshooting
PNEG-119
Inline Centrifugal Fan
23
Installing the Fan Wheel Assembly
1. Clean the motor shaft, key, bushing and the bore of the hub with a non-residual cleaner, such as
brake parts cleaner or electric parts cleaner. It is important that these mating surfaces be clean and
dry and no grease or oil is present. The parts must be assembled dry for maximum friction.
2. Insert bolts into bushing holes and ensure the shoulder portion of the bolt is NOT protruding
the hole.
3. Install the fan wheel assembly onto the motor shaft.
4. Align the keyway in the bushing with the key and slide the bushing onto the motor shaft.
NOTE:
Do not use excessive force to drive the bushing onto the shaft.
5. Align bushing and hub keyways with the key. Bushing should be flush with the end of the motor shaft.
6. Loosely install the bolts through the unthreaded holes in the bushing into the threaded holes of
the hub.
7. Find the applicable torque for the bushing in the chart
. The bushing type is etched into
the face of the bushing.
8. Torque the bushing gradually to evenly seat it inside the hub and onto the motor shaft. Set the torque
wrench to 1/3 of the required torque setting and tighten each bolt in a circular pattern three (3) times.
Increase the torque setting on the wrench to 2/3 of the required torque and tighten each bolt in a
circular pattern three (3) times. Increase the setting on the torque wrench to the final required torque
setting and tighten each bolt in a circular pattern three (3) times.
9. If there is a safety washer present, install the washer, lock washer and bolt.
10. Turn the fan wheel assembly by hand to make sure there is freedom of movement and uniform
clearance around the inlet.
11. Install the inlet cone and grill guard.
12. Turn ON the main power source and operate the fan for 30 minutes.
13. Stop the fan and lock out and tagout the main power to make sure the dryer cannot be started
during servicing.
14. Remove the grill guard and re-tighten the bolts in a circular pattern one time at the final required
torque setting.
15. Install the grill guard and turn ON the main power source.
Do not use any lubricant or thread locking compound during installation. The use
of such products will cause improper bolt torque and will crack the fan hub.
Summary of Contents for PNEG-119
Page 28: ...28 PNEG 119 Inline Centrifugal Fan 10 Wiring Diagrams 1 Phase 230 Volt Schematic ...
Page 30: ...10 Wiring Diagrams 30 PNEG 119 Inline Centrifugal Fan 3 Phase 230 Volt Schematic ...
Page 32: ...10 Wiring Diagrams 32 PNEG 119 Inline Centrifugal Fan 3 Phase 460 Volt Schematic ...
Page 34: ...10 Wiring Diagrams 34 PNEG 119 Inline Centrifugal Fan 3 Phase 575 Volt Schematic ...
