Greenheck Exhaust Fan CUBE 240

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

Determine the mounting type for the tapered bushing

Install the two socket head cap screws into the visibly threaded holes based on the mounting type.

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.

Inspect fans for the following issues

Record inspection and maintenance performed

Was moisture or dirt accumulation found on parts?

Describe the source of moisture or dirt and actions taken to eliminate it

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?

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

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

Ensure power is turned off to the fan.

Remove hood to gain access to motor compartment by pushing in two adjacent snap buttons and lifting.

Disconnect motor wiring and controls wiring (if present).

Remove the screws securing the powerpack in place.

Carefully lift out the powerpack while keeping the powerpack assembly centered to the housing.

Inspect the grease trap for any visible damage or leaks

Is the grease trap functioning properly?

Check the grease absorber for excessive grease accumulation

Is the grease absorber in good condition?

Clean the grease trap if necessary

Dispose of grease waste properly