Greenheck Plenum Fan APH-12

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 made by contractors for water tightness.

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

Rotate the fan wheel by hand and assure no parts are rubbing.

Check for bearing alignment and lubrication.

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

Check all guarding for secure attachment and no interference with rotating parts.

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

Is the shaft rotating during lubrication?

Add lubricant until clean grease is seen purging from the bearing.

Enter the number of grease shots used for lubrication.

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.

Rotate the fan wheel by hand for 10 to 15 revolutions to distribute lubricant on motor.

Is there any paint deterioration?

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

Are there signs of rust on machined parts?

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

Are the sheaves free from grooves or wear?

Were all belts 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 complete cycle

Bump each fan if not run completely

Check fan RPM when adjusting operating frequency

Consult manufacturer before changing fan operating conditions