Greenheck Plenum Fan APH-60

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)

Run each fan for a minimum of 30 minutes

Was each fan bumped if not run for 30 minutes?

Check fan RPM when adjusting operating frequency

Consult manufacturer if operating conditions are to be changed

Did all electrical components reach operating temperature?

Did all mechanical components reach operating temperature?

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

Is the shaft rotating during lubrication?

Enter the number of grease shots applied based on bore size.

Is clean grease seen purging from the bearing?

Describe the condition of the purged grease, if visible.

Confirm that building supply voltage matches the voltage for which the unit is wired.

Disconnect and lock-out all power switches to fan.

Check all piping and wiring penetrations for water tightness.

Check all fasteners, set screws and locking collars for tightness.

Rotate the fan wheel by hand to ensure no parts are rubbing and remove any dirt or debris.

Check for bearing alignment and lubrication.

Check the V-belt drive for proper alignment and tension.

Check all guarding for secure attachment and ensure they do not interfere with rotating parts.

Inspect fan for moisture or dirt accumulations.

Was moisture or dirt found on parts?

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

Rotate the fan wheel by hand for 10 to 15 revolutions.

Is there any paint deterioration?