Identifying X-Axis Rail Version
Before you begin, determine which version of the X-Axis rail is installed in your machine. Check the right side of the X-Axis rail: if there is no cutout, you have Revision 1; if there is a cutout, you have Revision 2. Follow the corresponding procedure based on this identification.
Rev 1 Procedure
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Power OFF machine.
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Remove the left side panel.
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Manually move the carriage to the right, and down about halfway.
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Insert the tip of the tensioner tool into the center of the X-axis belt. Notches must align with rail.
Note: The notches on the tensioner tool must align with the cutout on the X-axis rail. This is necessary for the tool to provide an accurate reading.
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When the tool is seated flush against the X-axis rail, the O-ring on the rear shaft will indicate the belt tension.
WARNING: Do NOT attempt to adjust the belt tension tool. These are calibrated at the factory.
Reading Belt Tensioner
- If the O-ring is flush with the body of the tensioner tool, the belt is properly tensioned.
- If the O-ring is not visible, the belt tension is too low.
- If there is a gap between the O-ring and the body of the tool, the belt tension is too high.
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To adjust the tension of the X-Axis belt, begin by loosening eight (8) 7/64” hex screws on the X-Axis idler assembly.
BACK
FRONT
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Evenly turn the two (2) 7/64” hex screws on the end of the X-Axis idler assembly.
Note: Tightening these two screws adds tension to the belt. Loosening, will remove tension.
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Repeat steps 4 and 5, continually checking the belt tension after adjusting the tensioner screws.
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Once the O-ring is flush with the body of the tool, continue with the “Belt Tracking” section of this document.
Belt Tracking
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Open your preferred illustrating program and create a black, raster box that is roughly two (2) inches smaller than the bed and four (4) inches tall.
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Set the speed to 100% and the power to 0%.
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Send the job to the engraver, open the top door, and start the job.
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The belt should stay in the middle of the idler pulley as the carriage head moves left to right.
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If the x-axis belt is riding against the idler pulley flange, make equal but opposite adjustments to the two (2) 7/64” tensioner screws.
If the X-Axis belt is too high
- Tighten the top screw 1/4 turn
- Loosen the bottom screw 1/4 turn
If the X-Axis belt is too low
- Loosen the top screw 1/4 turn
- Tighten the bottom screw 1/4 turn
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Once the belt is tracking properly, confirm that the belt tension is still set properly.
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Once the belt tracking and tension are properly set, you can tighten down the eight (8) 7/64” hex screws to lock the idler pulley in place.
BACK
FRONT
Rev 2 Procedure
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Power OFF machine.
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Remove the left side panel.
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Manually move the carriage to the right, and down about halfway.
-
Insert the tip of the tensioner tool into the center of the X-Axis belt. Notches must align with rail.
Note: The notches on the tensioner tool must align with the cutout on the X-Axis rail. This is necessary for the tool to provide an accurate reading. -
When the tool is seated flush against the X-Axis rail, the O-ring on the rear shaft will indicate the belt tension.
WARNING: Do NOT attempt to adjust the belt tension tool. These are calibrated at the factory.
Reading Belt Tensioner
- If the O-ring is flush with the body of the tensioner tool, the belt is properly tensioned.
- If the O-ring is not visible, the belt tension is too low.
- If there is a gap between the O-ring and the body of the tool, the belt tension is too high.
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To adjust the belt tension, loosen the three 5/32” hex screws on the tensioner.
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If the tension is low, tighten the 5/32” tensioner adjustment screw.
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If the tension is high, loosen the 5/32” tensioner adjustment screw.
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Check the tension.
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When the tension is set properly, tighten the three (3) 5/32” screws on the tensioner.
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Replace the side cover.
