9
6.
Refer to Figure 3-4.
Fasten a horizontal tube (6) across each end to connect the two frame sides using hardware
shown. DO NOT TIGHTEN.
7.
Install the four 2 x 4 plastic caps (16) provided onto the tops of the four vertical legs and the two 1-1/2 x 3 plastic caps
(17) in the ends of the horizontal tube on the A-D frame side.
Figure 3-4.
Front & Rear Horizontal Tube Assembly
8.
Refer to Figure 3-5.
Plumb the frame by adjusting the verticals to achieve the same measured distance between them
at both top and bottom. Square the frame by measuring diagonally from corners “A to C” and “B to D”
The difference
between the two shall not exceed 1/4 of an inch.
Tighten all fasteners. Re-measure and align if necessary.
