Greenheck Centrifugal Exhaust Fan GB 121

Clean the wheel to remove oil and dust accumulation

Clean the housing to ensure smooth operation

Check all fasteners for tightness

Is the unit ready for restarting?

Describe any issues found during maintenance

Belt Inspection and Replacement

Check belts for wear and tightness

Use matched belts for multi-groove pulleys

Loosen tensioning device for belt removal

Adjust belts as per 'Pre-Starting Checks'

Check pulley setscrews and keyways

Ensure fan RPM is not readjusted

Use identical size and type pulleys for replacement

Ensure safety protocols are in place

Gather necessary tools and materials

Verify the following before lubrication

Enter the number of lubricant shots used

Enter the hand gun pressure used

Were the bearings rotated during lubrication?

Check for moisture or dirt accumulations on parts

Was the source of moisture or dirt located and eliminated?

Is there any paint deterioration?

Describe any special techniques used for touch-up or repair of special coatings

Inspection at 30 Minute Interval

Conduct initial inspection of the fan

Inspect belt alignment and tension (GB unit only)

Adjust and tighten belt as necessary (GB unit only)