Knife Bar Gibs - Challenge CHAMPION 305 Instructions And Parts Manual

12.0 Adjustments

12.15 Knife Bar Gibs

The knife bar gibs are two steel backed UHMW plates on either side of the arch that guide and hold
the knife as it cuts. If adjusted too tight the knife may not come down, or scoring could damage the
gibs and knife bar. If too loose, you could get uneven or inaccurate cuts.
lacerations could result. Follow all safety precautions and knife changing instructions from
the Knives section of this manual.
There are three, socket set screws with jam nuts on each side of the arch that adjust the gibs, (Figure
47). These should be adjusted only with the knife bar directly behind the screws being tightened.
To adjust:
1. Start the machine and make a cut. When the knife is half way down, have someone press
the stop button. The knife bar should be stopped half way across the gibs.
2. Loosen all (6) jam nuts on the gib adjusting screws and back the screws out 1/2 turn.
54
Figure 46 – Jam Nut Location
WARNING: Knives are heavy and very sharp (even after use). Severe
Figure 47