Gullco KBM-28 - Manual (Page 37)

33
PROBLEM CAUSE REMEDY
Slight Overload. Push plate forward to help feeding.
Overload.
Check bevel width relative to the plate tensile strength.
Take smaller cuts per pass.
Refer to "Bevelling Capacity" earlier in the manual.
Guide Roller not functioning.
Check the guide roller for correct set-up. Refer to the
appropriate section under "Bevel Settings" earlier in the
manual.
Clamp Roller is too tight.
Check if plate is in true (flat) contact with the Main Roller.
Re-adjust Clamp Roller Assembly if necessary. Refer to
the appropriate section under "Bevel Operation" earlier in
the manual.
Main Roller not functioning.
Free-up the rotation of the main roller replacing the
bearing if necessary.
Burrs on the plate make the
edge uneven.
Grind off all burrs and irregularities before bevelling.
Guide roller extends beyond
the slide base surface.
Check the guide roller for correct set-up. Refer to the
appropriate section under "Bevel Settings" earlier in the
manual.
Loose setting of the Slide Base
Locking Bolt.
Clean mating surfaces of the Slide Base and Pivot Arm
Block, check for true seating of the Slide Base, and firmly
tighten the Slide Base Locking Bolt.
Overload.
Check bevel width relative to the plate tensile strength.
Take smaller cuts per pass.
Refer to "Bevelling Capacity" earlier in the manual.
Burrs in sheared edge of plate
interfere with feeding.
Grind off all burrs and irregularities before bevelling.
The cutter edge extension is
not far enough beyond the
edge of the plate. The bottom dead-centre of the cutter must be at least
0.025" [0.6 mm] recessed from the front face of the Guide
Roller Bracket (I.e cutter is shimmed too far out).
The cutting chips are too heavy
The depth of cut is too heavy. Take smaller cuts per pass.
Refer to "Bevelling Capacity" earlier in the manual.
Wrong machine settings. Check.
Overload.
Check bevel width relative to the plate tensile strength.
Take smaller cuts per pass.
Refer to "Bevelling Capacity" earlier in the manual.
Main roller not functioning.
Free-up the rotation of the Main Roller, replacing the
bearing if necessary.
Too much external force
applied to the cutter.
Relieve all external forces. Refer to "Forces Acting
on the Cutter" and "Cutter Breakage Caused by External
Forces" earlier in this manual.
Difficult to Feed Plate.
Cutter Damage.
Cutter Slips and does
not feed the plate
through the machine.
Chips are not sheared
off at the root.
Uneven Bevel
Measurement.
TROUBLESHOOTING GUIDE