Stitching Faults & Solutions

Visual Stitching Faults Reasons and Corrections
Perfect Stitch
Perfect Stitch Using 'HOKO' Brand Stitching Wire ensures optimal results
One leg too short
One leg too short Incorrect wire feed, undue brake on wire spool, wrong setting of wire feed
One leg too long
One leg too long Too much wire feed, wrong adjustment of feed lever
Crumpled staple crown
Crumpled staple crown Wire of no penetrating force, change for stronger wire
One leg breaks at bending angle
One leg breaks at bending angle Wire too brittle or hard, edges of driver too sharp
Staple crown not flushed
Staple crown not flushed, legs crumpled Arm too low, or wire too soft or too thin
Both legs short
Both legs short Adjust the length of wire by resetting with the help of feed adjusting screw
Both legs squeezed back
Both legs squeezed back Replace loop bar or formers
One leg squeezed upward
One leg squeezed upward Damage to driver (corner broken)
Crown bowed, not clinched correctly
Crown of staple bowed, staple not clinched correctly Wrong setting of stitching thickness, set the arm
Staple legs not fully closed
Staple legs not fully closed Set the push bar
One leg not clinched
One leg not clinched Clinchers, back plate push bar damaged
Clinching pressed through board
Clinching pressed through board Push bar too high
Burr on wire ends
Burr on wire ends Blunt cutters or cutters not sliding with cutting tube
Bowed staple crown, not flush clinching
Bowed staple crown, not flush clinching Wire too hard, Replace the wire
Bowed staple crown, not flush clinching
Side deflected shank. Damaged back plate or back plate out of the line with head.
Bowed staple crown, not flush clinching
Wire buckled between cutting tube and feeder. Wrong size of wire, short feeding, bad cut off, wire intermingled in coil, excessive wear of wire guide, loop bar, wire holder.