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Figure 4
2. Remove the bolt, washer, and spring; pull the screw rod along with the belt to the end rail
position (Figure 4).
Figure 5
3. Put the rod through the hole and run the spring, washer, and nut on the threaded rod as shown in
Figure 5. The nut will fit through the washer and the spring. Before tightening the nut, check again
whether the belt is centered on the belt wheel on both ends.
4. Tighten the nut until the spring is almost completely compressed like in Figure 6. The boom rail
assembly is now complete.
Mounting the wall bracket and door bracket
Figure 7
Figure 6
Wall bracket – Close the garage door and measure the garage door
width at the top and mark the center. Locate and mount the wall
bracket 2 cm - 15 cm above the door on the inside wall.
(Depending on the actual installation space).
Door bracket – Attach the door bracket to a structural part of the
door as close to the top edge as possible.
*Mounting screws and Anchors for the Door and Wall brackets
are not included in the package.*
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