Upper
Mount
Note: Dashed lines represent angle irons.
10-7/8”
(27.6 cm)
Small Upper Mount
13-3/4’’ (34.9 cm) x
9-5/8” (24.4 cm)
15-5/8”
(39.7 cm)
Large Upper Mount
18-1/2’’(46.9 cm) x
9-5/8”(24.4 cm)
5.38”
(13.7 cm)
5.38”
(13.7 cm)
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3b. Attach Upper Mount to Angle Irons
Secure the upper mount directly to the angle irons with the Upper Mount Hardware. The angle irons should be
aligned with the outermost holes of the upper mount. Consult the diagrams below for distances between the
angle irons.
Do not use beam clips on angle irons!
Tighten the bolts to 40 ft·lb (54.2 N·m) using a torque wrench and 3/4” socket. After attaching the upper mount to
the angle irons, tighten all the bolts securing the angle irons to the roof structure to 40 ft·lb (54.2 N·m).
Upper Mount Hardware:
a. (4) 1/2-13 x 2” GR 8 Bolt
b. (8) 1/2’’ Flat Washer
c. (4) 1/2-13 Nylock Nut
a
b
c
b
Side View
The angle irons should be aligned with the outermost holes on the upper mount.
Do not use beam clips on angle irons!
