SPX Corporation Centrifugal Fan HDBC-9CB

Is the ambient temperature between -20°F (-29°C) and 120°F (49°C)?

Is the application environment clean and dry?

Use a hand-operated grease gun with a maximum pressure of 40 psi.

Is the blower running during lubrication?

Did a slight bead of grease appear at the bearing seals?

Ensure all routine maintenance is completed before taking vibration readings.

Record the current vibration readings.

Are the current vibration readings significantly different from the initial startup readings in Table 4?

Identify potential causes of vibration problems

Describe the corrective actions taken to address the identified causes.

Lock out the power source to the motor and let the wheel come to a complete stop.

Disconnect the inlet and/or discharge duct work from the blower, if necessary.

Remove the inlet side of the blower housing.

Measure and record the location of the blower wheel on the shaft.

Remove the locking hardware in the wheel hub.

Ensure all safety guards are properly attached and fully functional

Is the power to the blower turned off and locked-out if any guards are defective?

Inspect accessories for proper function within intended limits and design specifications

Refer to manufacturer's maintenance manuals for correct maintenance procedures

Have all defective parts been repaired or replaced and inspected by authorized personnel?

Ensure motor is turned off and locked out

Gather necessary tools and compatible grease

Identify motors with grease fittings

Replace grease plugs with grease fittings if necessary