9 Nov. 2006
Step 7.
Using an approved lifting device, place a lifting strap around the top roll assembly, lift and
remove from shipping crate. Raise the top roll assembly into position and lower it slowly onto the top of
both side columns. Ensure the bearing housings are located outside the head plates. Secure the top roll at
both head plates on each side of door. (Figure 3)
Step 8
. Slide the drive unit onto the drive side stub axle. Attach torque arrestor bracket to the head
plate.
Step 9
. Remove straps holding door fabric in place. Disengage the drive unit brake by pulling down on
the brake release lever and rotate the top roll until the bottom edge of the fabric is approximately 30 mm
(1.25 in) below the head plates.
Figure 3
To Next Page
Loading...
