Maintenance Adjustments; Squaring The Backgauge - Challenge CHAMPION 370 TC Instructions And Parts Manual

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8.0 Maintenance Guide

8.7 Maintenance Adjustments

To test the backgauge for squareness, place a small lift of paper against the left side of the

backgauge (but not against the side guide) and make a cut.

Now, leave the backgauge in the same position, flip the lift over and against the right side of the

backgauge (but not against the side guide). Make another cut to see if any of the stock will trim off.

Run two checks, one starting on the left and moving to the right, the other, moving from the right to

the left. Trim in either sequence indicates the backgauge is out of square.

1. As machine wears, make sure the backgauge gibs are set properly first (see Backgauge

Gibs), then follow steps 2 through 5.

NOTE: Gib adjustment is not necessary on initial machine setup because they have been adjusted at

the factory.

2. DISCONNECT THE POWER AND LOCK IT OUT! (See Power Lockout procedure, page 5.)

3. Remove the rear table cover.

4. Loosen backgauge-locking screw (smaller head). Loosen the jam nuts on the backgauge

squaring screws (see Figure ).

5. Back off the squaring screw on the side that the trim occurred and tighten the other. Make

sure both screws are snug.

NOTE: If 1/8" of stock was trimmed off when checking for squareness, turning the proper squaring

screw about one revolution will correct the problem. This relationship is constant, so turning the

squaring screw 1/2 revolution will make up for about 1/16" of stock trimmed.

PAPER

Figure 22

Locking Screw

Squaring

Screws

Figure 23

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