COOK CP - Manual (Page 9)

9
Troubleshooting
Problem and Potential Cause
Low Capacity or Pressure:
• Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive
assembly.
• Poor fan inlet conditions. There should be a straight clear duct at the inlet.
• Improper wheel alignment.
Excessive Vibration and Noise:
• Damaged or unbalanced wheel.
• Belts too loose; worn or oily belts.
• Speed too high.
• Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive
assembly.
• Bearings need lubrication or replacement.
• Fan surge or incorrect inlet or outlet condition.
Overheated Motor:
• Motor improperly wired.
• Incorrect direction of rotation. Make sure the fan rotates in same direction as the arrows on the motor or belt drive
assembly.
• Cooling air diverted or blocked.
• Improper inlet clearance.
• Incorrect fan RPMs.
•Incorrect voltage.
Overheated Bearings:
• Improper bearing lubrication
• Excessive belt tension.
CA/CF SWSI Arrangement 1 Parts List
5
4
3
2
1
Drive Side View
6
7
10
9
8
Front View
12
11
Inlet Side View
Part No.
Description
Sizes 120 - 730
1 Motor Slide Base
2 Motor
3 Motor Sheave
4 Belt Set
5 Fan Sheave
6 Housing
7 Isolation Base (optional)
8 Shaft
9 Outboard Bearing
10 Inboard Bearing
11 Wheel
12 Inlet Cone