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Mounting Straps
[22]
13
MOUNTING THE OPERATOR:
1. Getting Started.
• Position rail/power head assembly (Fig. 2-7).
–
Rail strap leaning on wall next to header bracket.
– Place material on floor under power head to
protect from scratching. (A box, stool, or similar
device may be needed to clear a torsion
spring, as shown.)
2. Mounting the assembly.
• Attach rail strap to header bracket using nut (47)
(Fig. 2-7 inset)
.
FINGER TIGHT ONLY.
• Support power head on step-ladder.
NOTE: Before final attachment to ceiling, insure
that assembly is in proper alignment (Fig. 2-9).
• Attach mounting straps to ceiling using lag
bolts (22) (Fig. 2-10).
• Set height of power head according to following:
– Track guided doors
.
a.
Rail must clear door at highest point of travel
b. Be level or, power head slightly below level.
– Trackless doors
.
a.
Rail must clear door at highest point of travel
by 1" to 1-1/2".
• Securely tighten power head mounting bolts (46)
and nuts (47).
• Lower door.
• Fully tighten rail strap nut.
• DO NOT PLUG UNIT IN YET!
3. Adjusting length of emergency release cord.
• Check emergency release knob height.
– Low enough you can reach it.
– High enough to clear your vehicle, but
NO HIGHER THAN 6 FEET ABOVE FLOOR.
• Tie a new overhand knot where desired
.
– Cut off any extra cord.
YES
N
O
N
O
FIG. 2-9 Operator must be aligned.
FIG. 2-10 Mounting the power head.
ANGLE IRON ON FINISHED CEILING
Attach angle iron to beams
UNFINISHED OR OPEN BEAM
Extra framing
not needed
Extra framing
NEEDED
VIEW FROM ABOVE
(not to scale)
[22]
[
22
]
[
46
]
[
47
]
[
47
]
90°
DOOR
HEADER BRACKET
FIG. 2-7 Position assembly.
DRYWALL
[46 & 47]
[46 & 47]
5/16"-18
5/16"-18 x 3/4"
5/16"-18
1/4" x 2"