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The Designer Series & P7 Industrial
3.6 install torsion bar
NOTE: Refer to appendix if installing a rear torsion systems.
CAUTION: For larger doors refer to 5.4 appendix as a
stronger system may be required.
Before lifting the torsion bar into position, check there
is a solid foundation of either brickwork, timber studs,
head or ceiling that will support the lifting system
correctly.
Fig: 3.6.2
a) Lift the torsion bar assembly into position, resting both ends
over the top of the horizontal tracks. Fig. 3.6.1.
For wide doors, place a temporary support in
tip
the center of the torsion assembly to prevent sag
and possible collapse.
b) Ensure that the side bearing brackets
J
are situated on the inside of the horizontal tracks.
c) Line up the spring anchor bracket
door, so that the cut corner is facing down.
d) Slide the torsion bar assembly towards the wall so the
spring anchor bracket can touch the wall (the axle must be
parallel with the opening).
It may be necessary to offset the anchor bracket
tip
in order to clear room for the opener C-rail.
e) Secure the spring anchor bracket to the wall/ceiling and
the side bearing brackets to the tracks as shown in Fig 3.6.1.
Unwind the lifting cable from the
tip
bottom panel.
f) Attach the lifting cable to the cable drum by slipping
the cable into the slot on the outside groove. (the
ferrule
will
prevent
Fig 3.6.2.
g) Wind the cable by hand by turning the cable drum away
from the door.
h) Once the cable is taut, slide the cable drum against the
side bearing bracket and tighten the screws to the torsion
bar. Fig 3.6.3.
installation instructions
™
L
and cable drums
K
with the middle of the
the
cable
from
coming
K
Fig: 3.6.1
Fig: 3.6.3
CAUTION: Be careful not to
out)
over tighten the set-screws
13
L
J
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