Greenheck Centrifugal Sidewall Exhaust Fan CW-180

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 between them, 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 against the mating surface.

Disconnect and secure all electrical power to the fan

Ensure the unit is non-functional

Check for grease fittings on the motor

Verify motor temperature does not exceed 104ºF (40ºC)

Grease the motor according to manufacturer's recommendations

Inspect and ensure all components are secure

Adjust and tighten components as necessary

Important Note for Future Maintenance

Record any observations or issues found during inspection

Adjust belt tension after 24-48 hours of operation

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 the setscrews and moving the wheel to the desired position.

Ensure motor amperage and voltage ratings are checked for compatibility to supply voltage.

Route electrical supply through the conduit chase between the mounting plate and the bottom of the motor compartment.

Ensure wiring conforms to local and national codes.

Confirm that the fan is not lifted by the fan hood.

Ensure fans are not lifted in a way that bends or distorts fan parts.

Verify that slings or timbers are not passed through the venturi of the fan.

Check that fans with special coatings or paints are protected during handling to prevent damage.