Greenheck Plenum Fan APH-20

Ensure the fan is turned off and locked out before starting lubrication

Gather necessary tools and materials

Is the shaft rotating during lubrication?

Add lubricant until clean grease is seen purging from the bearing

Is the bearing visible to observe purged grease?

Enter the number of grease shots used for bore size lubrication

Check operating conditions for special considerations

Disconnect the electrical supply

Run each fan to operating temperature

Bump each fan if not run to operating temperature

Check fan RPM when adjusting operating frequency

Consult manufacturer before changing fan operating conditions

Check for wear, tension, alignment, and dirt accumulation on V-belt drives

Are the sheaves free from grooves or wear?

Are all belts being replaced on multiple groove drives?

Loosen belt tension before removing belts

Ensure slack in each belt is on the same side of the drive after replacement

Measure belt deflection halfway between sheave centers (in inches)

Inspect the fan for moisture or dirt accumulations.

Was moisture or dirt found on parts?

Locate and eliminate the source of moisture or dirt, if found.

Is there any paint deterioration?

Consider touch-up or repainting if paint deterioration is found.

Do the fans have special coatings?