Airlift Doors Roll Up Door XRS PLUS

Removing the Old Limit Switches

Turn each retaining bolt slightly clockwise using pliers or vice grips

Pull out on the bolts to expose the nuts

Slide the black plastic retaining plate off the bolts and cam shaft

Removing the Wires and Old Switches

Note where the wires are attached to the existing limit switches

Remove the wires from the limit switch terminals

Slide the 4 switches off the retaining bolts

Remove the black plastic cover from the opener to access the Limit Assembly

Identify the limit cams and their screws

Loosen the Set Screw for large adjustments

Use the Fine Tune Adjustment Screw for small adjustments (12” of door travel or less)

Did you rotate the Open Limit Cam clockwise to decrease door travel?

Did you rotate the Open Limit Cam counterclockwise to increase door travel?

Did you rotate the Close Limit Cam counter-clockwise to decrease door travel?

Ensure the control box is powered on

Verify that the initial door limits have been set

Record the current speed setting on the VFD

Adjust the speed setting using the UP arrow to increase or DOWN arrow to decrease

Is the desired speed setting achieved?

Reset the door limits after speed adjustment

Grease all zerk bearings on the shaftline with lithium grease

Ensure grease pushes through the bearing

Check all brush seal or vinyl seal on the vertical tracks for damage or air gaps

Inspect top rubber seal for proper sealing against the vinyl of the door

Strap Inspection (Premium Model Only)

Perform visual inspection of the counterweight strap for wear or fraying

Remove PVC guide tube if necessary to inspect the strap

Remove the PVC guide tube by pulling out on the bottom of the tube and sliding it down off the weight stack with the door in the closed position.

Ensure no personnel are in the way and the weights will not hit or hang up on any obstruction when the door is opened.

Place the door in the open position.

Turn power off to the door control box.

Ensure the emergency release ropes are in the 'engaged' position and the door is locked in place.

Remove the 3 bolts running between the stainless steel guide disks on the Strapeze assembly.

Lift the strap up from between the guide disks and slide it off the shaft.