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Reset the vertical tension if the vertical belt feels loose.

• Click Reset Motors to turn off power to the motors.

• Manually move the Head to the top of the Gantry and down again.

• Remove the lower gantry cover by removing the screw holding it in place.

• Manually move the head up on the gantry.

• With an 1/8” Allen wrench, loosen the Vertical Tension Screw on the bottom of the Gantry rail NEAR the screw that holds the Toothed Pulley.

• You may see the Toothed Pulley spring out downward.

• Snugly retighten the screw.

• Reinstall the gantry cover, replacing the screw you removed earlier.