Greenheck Centrifugal Sidewall Exhaust Fan CW-090

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 and perform the corresponding steps

Install the two bushing socket head cap screws into the aligned holes by hand until seated.

Disconnect all electrical power to the fan and secure to the 'off' position.

Ensure the unit is made non-functional by removing fuses and locking off the disconnect.

Inspect the wheel and housing for oil and dust accumulation.

Clean the wheel evenly to prevent imbalance and vibration.

Clean the housing to ensure smooth operation.

Is the wheel free from oil and dust?

Disconnect and secure all electrical power to the fan to the 'off' position

Fasteners and Setscrews Inspection

Check all fasteners and setscrews for tightness

Is the wheel aligned as shown in Figure 5?

Is wheel realignment necessary?

Adjust wheel and inlet cone overlap by loosening setscrews and moving the wheel to the desired position

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.

Measure the motor amperage rating

Measure the motor voltage rating

Is the motor amperage and voltage compatible with the supply voltage?

Route electrical supply through the conduit chase

Does the wiring conform to local and national codes?