Operating
Instructions
7.1
Fault Detection And Correction
Problem
Motor unit will not run
Motor hums, but blade
does not turn
Motor runs, but blade
does not turn
Tool vibrates excessively
Tool runs hot
Tool does not cut
properly
Bettcher Industries, Inc.
Probable Cause
No power to unit
Defective motor
Grease buildup in blade,
housing, or pinion
Blade tight in housing or
worn
Drive pinion worn or
damaged
Finned driver sheared or
worn
Grease buildup in blade,
housing, or pinion
Blade tight in housing
Worn pinion
Worn blade
Worn blade housing
Blade tight in housing
Grease buildup
Dull blade
Depth gauge improperly
adjusted
Page 7
Whizard® Power Knife Manual
Rev. January 29, 2016
Remedy
Check power at outlet -
Correct as needed Check
fuse in Power Supply -
Replace if necessary
Replace
Clean and reassemble
Re-adjust housing
Replace
Replace
Clean and reassemble
Re-adjust housing
Replace
Replace
Replace
Re-adjust housing
Clean and reassemble
Sharpen and re-steel blade
Re-adjust depth gauge