Challenge SPARTAN 150 M, Technical Service And Parts Manual

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3.0 Maintenance Guide
14
Figure 10
4. Tighten gib screws such that the knife will not fall when the lever is released from any
position. Tighten the top screws with the knife in the UP position. Tighten the bottom screws
with the knife in the DOWN position. The motion of the lever should remain smooth. Hold
screws in position with hex wrench and tighten jam nuts.
5. Reinstall clamp handle, cut lever handle, and top cover.
3.4.4 Knife Leveling Adjustment
If knife cuts through one side of paper and not the other, the knife level may need adjustment. First
check to make sure the knife is all the way up in knife bar by looking through the viewing holes in the
knife bar (Figure 11). If it is not all the way up, loosen the knife screws and use knife lifter assembly
to raise knife up as high as possible. Recheck knife by cutting through paper.
Figure 11
If knife is not cutting through paper evenly, use the following procedure to adjust:
1. Flip the cut stick to a new position.
2. Place a few sheets of paper over the entire cut stick, and set the knife depth so that it just
cuts through the bottom sheet of paper on one side. To set the knife to cut deeper, turn the
Top
Knife Bar
Gib Screw
Bottom
Knife Bar
Gib Screw
Top
Knife Bar
Gib Screw
Bottom
Knife Bar
Gib Screw
Viewing Holes