Product Manual

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5. Attach upper yoke (to angle irons)
CAUTION: Beam clips and spacers are never used when mounting the fan to angle irons!
ATTENTION
The angle irons should be aligned with the outermost holes in the upper yoke.
Secure the upper yoke directly to the angle irons with the Upper Yoke Hardware. Consult the diagrams below for
distances between the angle irons. Tighten the bolts to 40 ft·lb (54.2 N·m).
Upper Yoke Hardware:
a. (4) 1/2-13 x 2” GR 8 Bolt
b. (8) 1/2’’ Flat Washer
c. (4) 1/2-13 Nylock Nut
Side View
a
b
c
b
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)