SPX Corporation Blower SQAF

As mentioned previously in this manual, excessive vibration can cause premature motor failure that could lead to catastrophic failure of the blower. After performing any routine maintenance, the vibration readings should be taken.

New readings should be taken (maximum every 12 months) and compared to the readings you recorded in Table 3 during the initial startup. If any major differences are present, the cause should be determined and corrected before the blower is put back into operation.

The most common causes of vibration problems are:

• Misaligned sheaves and/or belts

• Poor blower inlet and/or discharge conditions

Warning: Only trained personnel should perform this procedure

Does the motor have grease fittings?

If the motor does not have grease fittings, stop the procedure

Enter the motor manufacturer's recommendations for lubrication frequency and type of grease

Did you use a hand operated grease gun at no more than 40 PSI?

Was the motor running while lubricating the bearings?

Sign off on the motor bearing lubrication

Warning: This procedure requires trained personnel with PPE!

If the wheel is unbalanced, it must be rebalanced or replaced.

Choose the method of balancing the blower wheel

If adding weights, ensure they are welded to the wheel and do not interfere with the blower housing or disrupt air flow.

If grinding material, be careful not to grind too much in one area which could affect the structural integrity of the wheel.

If reinstalling the wheel, ensure the proper wheel-to-inlet clearance is maintained.

Is the wheel balanced after the chosen method?

Sign off on the wheel balance check