Challenge CHAMPION 305 TC, Instructions And Parts Manual

Page: 41 / 110

12.0 Adjustments
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3. Take several sheets from the center of each lift and compare them to each other. The
encoder system on your cutter will space accurately between your 10” (254mm) and 5"
(127mm) cuts, whether the overall accuracy is correct or not. The stack of paper between
the 10” (254mm) and 5" (127mm) cuts will be a true 5", but the paper left against the
backgauge will not- if the backgauge position readout is off.
4. If the backgauge position readout is off, you will have to adjust the accuracy. On the TC
touch screen console, select Maintenance, then Setup. Then select the Service Info tab and
in the box for Enable Tabs Code, enter 6125. Now select the Accuracy Adjust tab and follow
the instructions on the screen. You will be asked to cut a sample pile, measure it, and then
key in the actual measured value. Press Save and Exit when finished.
5. Run the backgauge back several inches, then bring it forward through the 3.750" (95 mm)
preset dimension, then repeat steps 1-3 again.
12.5 Knife Latch Adjustment
The knife latch prevents the knife edge from drifting down while the machine is not in operation. The
knife latch height must be set properly in order for the machine to function properly and to prevent the
knife blade edge from becoming exposed.
Failure to adjust the knife latch properly could result in the knife
blade edge being exposed at times other than normal operation. Serious injury could result.
Follow these instructions to adjust:
1. Make sure the knife is all the way up and has not drifted down by performing a cut cycle.
2. Turn the machine off and lock out power, see page 5.
3. Loosen the two screws on top of the control console and tilt down the console. Locate the
knife latch assembly inside the machine.
4. Check the gap as shown in Figure 31. The gap should be .030” (.8 mm) to .060” (1.5 mm).
Figure 31 – Knife Latch
5. If the gap is out of range, adjust the knife latch height by loosening the mounting screws
(Figure 31) and move the knife latch assembly up or down until the gap is in the correct range
of .030” (.8 mm) to .060” (1.5 mm).
Knife Latch
Mounting Screws
Gap
Adjust-
ment