Presetting The Backgauge; Backlash Indicator; Backgauge Lock; In/Mm Toggle Key - Challenge CHAMPION 305 Instructions And Parts Manual

7.0 Operation

7.3 Presetting the Backgauge

The backgauge must be preset every time the power is turned on. Using the hand wheel, turn the
backgauge until it passes forward through the 5" position. The display readout will then show the
correct backgauge position.

7.4 Backlash Indicator

A small caret will be displayed next to the backgauge position if the backgauge was last moved
backward. To insure accurate cuts, always approach the desired backgauge position from behind
(moving the backgauge forward).

7.5 Backgauge Lock

Tightening the backgauge lock prevents the backgauge from moving while positioning paper against
it. There is a thumb screw lock beneath the hand wheel, (Figure 8).

7.6 IN/MM Toggle Key

This switch will toggle the display readout between inches, fractions, and millimeters. It can be found
on the console as shown in Figure 6.

7.7 Making a Cut

Place the paper against the backgauge and left side guide. Press and release both cut buttons once
to start the hydraulic motor. Then press and hold both cut buttons to start the cut cycle. While
holding the cut buttons, the knife and clamp will complete the cut cycle. If the buttons are released at
any time during the cycle, the knife and clamp will immediately return to the up position.
Note: Both cut buttons must be released before a new cut can be made. The cut buttons must be
pressed within 1/2 second of each other both to start the hydraulic motor and to make a cut.
HAVE STOPPED IN THE UP POSITION! Due to static buildup, fine trim may have a tendency to
stick to the clamp or knife surfaces. Fingertips might be drawn into the knife by the clamp if this is
attempted. Wait until the knife and clamp have BOTH STOPPED MOVING before removing stock
trim.
18
Thumb Screw
Lock
Figure 8
DO NOT ATTEMPT TO REMOVE TRIM UNTIL THE KNIFE AND CLAMP