i n s t a l l a t i o n o f g a r a g e a n d i n d u s t r i a l s e c t i o n a l d o o r s
43
8
door oPEratIon
Octagonal shaft, spring cocking
design number of spring winds is indicated in
the installation card or on a special label on the
side cap of the middle panel .
after loading of the spring block it by putting the supports under mounting drivers, insert the stopper
in the plugs slots, pull out the mounting driver . tighten the six-sided screws for fastening the plugs to
the shaft .
there is a special marking strip on the spring,
that indicates the amount of spring winds .
the octagonal shaft is used in the torsion
gear of the industrial sectional doors due to
its very high strength and reliability . there is
no need to use intermediate support brack-
ets . it enables simplified and speeded up
mounting as well as improved performance
of the doors .
