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The Designer Series & P7 Industrial
5.1.8 installing top panel
Refer to section 3.5 to install the top panel.
5.1.9 spring counterbalance system
The springs and drums for the counterbalance system are now colour coded to easily identify which
side of the centre bracket the spring is placed. Fig. 5.1.11.
a) Place the torsion bar
B
anchor bracket
K
onto the torsion bar, positioning it
approximately half way along.
b) Locate the cable drum/s
brackets
L
,spring/s
I
assemble them as shown in Fig. 5.1.11.
L
J
H
Fig: 5.1.11
c) Ensure the shaft collar is butted up against the anchor
bracket as shown in Fig. 5.1.11 and fixed to axle on spring
side of anchor bracket.
CAUTION: DO NOT tighten
bolts in cable drums yet
a) Lift the torsion bar assembly into position, resting both
ends over the top of the horizontal tracks. Fig. 5.1.12.
b) Ensure that the side bearing brackets
J
are situated on the outside of the horizontal tracks.
c) Line up the spring anchor bracket
the 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).
e) Secure the spring anchor bracket to the wall and the side
bearing brackets to the tracks as shown in Fig 5.1.12.
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 the cable from coming out).
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 5.1.13.
Refer to section 3.7 to tension the springs.
installation instructions
™
on the floor and slide the spring
J
, washers
H
, side bearing
and shaft collar
U
and
I
double spring shown
L
and cable drums
K
with the middle of
B
K
U
Fig: 5.1.13
CAUTION: Be careful not to
over tighten the set-screws
22
L
H
Fig: 5.1.12
J
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