Installation - Overhead door 1056 Instruction Manual

INSTALLATION
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NOTE
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It is recommended that opener be mounted at least
7 feet from the floor.
1.
Measure width of door to determine center and make a vertical
line as shown in Figure 1. If door does not have a center
stile or suitable material for attaching door bracket then
door must be reinforced with steel at mounting point. This
reinforcing member must attach to both top and bottom rail of
the top section. This must be used on fiberglass and thin
metal doors.
2.
If suitable woodwork is not already in place, attach a 2" X 6"
block of wood to center of header as shown in Figure 1.
Continue vertical line on block.
3.
Use level as shown in Figure 2 to locate the high arc of door
travel and make a horizontal line on the header 1 /2" above this
point (See Figure 1 ).
4.
Rest header end of boom on top door section (extension spring
door) or on torsion spring or shaft (torsion spring door) and
powerhead on step ladder (see Figure 3). Note: Use a protec-
tive pad, such as cardboard, between ladder and opener to
protect opener cover.
5.
Position the bottom of the header bracket on the horizontal line
and centered on the vertical line. Attach header bracket to
header with two 1 /4" X 1-3/4" lag bolts.
6.
Manually raise door to a fully opened position. If necessary, use
spacers between ladder and opener to obtain clearance between
door and opener tracks.
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NOTE
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Carriage must be positioned near powerhead to prevent
interference between door and carriage.
Page 3
2 X 6 WOOD BLOCK
HEADER
HIGH ARC
OF DOOR
ATTACHMENT FOR DOOR RRflCKET -
ODORS WITllOUT [[NTER STJL[
FIGURE
1
CARPEHT
ms
LEVEL
Hlf.H nRC OF
ODOR TROVEL
DOOR TROCK
FIGURE 2
BOOM
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FIGURE 3
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