Assembly
for CHAIN
DRIVE
OPENER
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t;'on
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1. Attach rail assembly to power head by aligning
the sprocket
onto the motor shaft. Use (3)
bolts, 5/16"-18 x 1/2" (Fig. 1-5).
2. Tighten the chain by turning the adjustment
nut clockwise.
The chain adjustment
nut is
located in the Chain Pulley Bracket (opposite rail
end from the power head) (Fig. 1-6).
3. Tighten
chain
until chain
is approximately
1/8
inch above the base of the rail at midpoint
on
the rail (Fig. 1-6). Do NOT over tighten
chain.
You should have removed
all ropes and/or
cables(NOT
door lift cables) and disabled
the door lock already. If you have not,
remove all ropes and/or cables and disable
Set assembled
power head and rail aside. Begin with
Section 2 INSTALLATION.
Use
"-18 x 1/2"
FIG. 1-5
Rail - Power head assembly.
Chain Pulley Bracket a_waHenaotrai
l
use
.1
2 socket
on adjustment
nu[
i
- ghten
nu[ _o move
aulle,
this direction
--I_
Chain
TRail
at center of rail assembly
FIG. 1-6
Chain adjustment.
I
Assembly
for BELT
DRIVE
OPENER
1. Attach
rail assembly
to power
head by aligning
the sprocket
onto the motor shaft.
Use (3)
bolts, 5/16"-18 x 1/2" (Fig. 1-5).
2. Tighten
the belt by turning
the adjustment
nut
clockwise.
The belt adjustment
nut is located in
the Belt Pulley Bracket (opposite rail end from the
power head) (Fig. 1-7).
3. Tighten
belt until belt is approximately
1/8 inch
above the base of the rail at midpoint
on the
rail (Fig. 1-7). Do NOT over tighten
belt.
Belt Pulley Bracket (atwall e ndof rail)
__,__.-
Use 1/2
socket
_
I [ _\_4_/EEL_
on adjustment
nut
Tighten nut to move pulley this direction
)
Belt
/
T-Rail at center
of rail assembly
Belt
"T-Rail
You should have removed
all ropes and/or
cables (NOT door lift cables)and
disabled
the door lock already. If you have not,
remove all ropes and/or cables and disable
Set assembled
power head and rail aside. Begin with
Section 2 INSTALLATION.
Remove
Remove
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PN# 36420Supplement,
10/27/2008
11