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CAUTION
6. Install door bracket (Fig. 2-12).
• Contact door manufacturer for proper installation.
NOTE: Self-drilling screws are intended for use with
light-weight door only, while lag screws are meant
for wood doors only.
Because door designs vary, modifications may
be required and additional materials needed. Please
contact your door manufacturer with any questions
concerning your door.
Doors made of masonite,
lightweight wood, fiberglass,
and metal must be properly
braced before mounting
an operator.
Contact door manufacturer
or distributor for
bracing instructions.
7. Attach channel/rail assembly to header
bracket (Fig. 2-13).
• Fasten header end of the channel/rail to the
header bracket with pin.
• Install speed nut onto pin (Fig, 2-14).
• Place cardboard packing under power head. Use
additional support if needed.
8.
Establish power head mounting height (Fig. 2-15).
• Power head should be at door height above floor
or higher.
• Temporarily support power head in this position.
Use
– rope.
– ladder with cardboard packing.
– wood.
5. Install door braces
(See CAUTION below).
Header bracket
Header
Door
Power head
(Protected by cardboard
or packing)
Door
bracket
Fig. 2-15
CORRECT
r
WRONG
Door height
Fig. 2-12
Fig. 2-14
Door
bracket
Pin
Speed
nut
Boom header end
Same arrangement applies
to channel (not shown)
Channel
Rail
16
Fig. 2-13
Critical height is point where the rail/channel attaches to power head.
Top of Door
Dessus de la porte
“V”
“V”
“V”
“V”
Top of Door
OR
Top of Door
Dessus de la porte
[
79
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[
96
]
[
79
]
[
96
]
[
82
]
[
81
]