Greenheck Exhaust Fan CUBE 141

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.

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.

Socket Head Cap Screws Installation

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 the two until the hub comes loose from the bushing.

Disconnect and secure all electrical power to the fan

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

Check for unusual environmental conditions (extreme temperature, moisture, contaminants)

Select lubrication interval based on conditions

Ensure grease fittings are wiped clean

Is the unit in operation while lubricating bearings?

Inspect and ensure all components are secure

Adjust and tighten components as necessary

Inspect the grease trap for any visible damage or leaks

Measure the amount of grease collected in the trap

Is the grease level within acceptable limits?

Check the condition of the grease absorber

Is the grease absorber functioning properly?

Clean the grease trap if necessary