Greenheck Centrifugal Sidewall Exhaust Fan CW-075

Loosen the setscrew holding the bushing and shaft key in place, if present.

Loosen and remove the socket head cap screws fastening the bushing to the hub.

Select the mounting type for socket head cap screws installation

Tighten the socket head cap screws an eighth of a turn at a time, alternating until the hub comes loose from the bushing.

Clean all surfaces of hub and bushing to remove any oil or residue.

Select the mounting style for bushing installation

Use the keyway setscrew to hold the shaft key and bushing in place, if present, without overtightening.

Lubrication Frequency Assessment

Select the type of service environment

Ensure the use of a good quality lithium base grease conforming to NLGI Grade 2 consistency

Is the lubrication process completed successfully?

Check for any unusual noise or vibration after lubrication

Describe any issues observed during lubrication

Disconnect and secure all electrical power to the fan.

Ensure the unit is made non-functional (fuses removed, disconnect locked off).

Are you a qualified personnel familiar with local codes and regulations?

Are grease fittings provided on the motor?

Record the current motor temperature (in ºF or ºC).

Is the motor temperature below 104ºF (40ºC)?

Inspect and ensure all components are secure

Adjust and tighten components as necessary

Important Note for Future Maintenance

Note: Adjust (tighten) belt tension after the first 24-48 hours of operation.

Inspection and Maintenance Record

Record inspection and maintenance performed

Check for moisture or dirt accumulations on parts

Describe the source of moisture or dirt if found