Calibration and Alignment of the Straight Line Trimmer

Place a piece of matboard at the 10” mark, and using the Trimmer, trim it. Measure the width of the matboard. If it does not measure 10” across the top and across the bottom, the Trimmer needs to be calibrated.

Start with the bottom. Loosen the bottom Locking Knob by turning it Clockwise.

Using a 7/16” Open-Ended Wrench, loosen the Locking Nut.

Using a 3/16” Allen Wrench, turn the Alignment Adjustment Screw Clockwise to move the Trimmer to the Right; turn it Counter-Clockwise to move the Trimmer to the left. When moving to the Left, you will need to push the Trimmer to the Left so that the Alignment Adjustment Screw stays on contact with the rail.