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
67
9
suPPLEmEnt
А
Position the sprockets on the top and bottom shafts so, that they are in one line . put on them
the chains before . if the center-to-center distance between the shafts (a) is less than 393 mm
shorten the chain according to the table . install the sprockets on other side of the embrasure
in a similar manner .
fix the sprockets using fastening bolts .
install the connection chain on the sprockets .
shorten the chain according to the table in the
mounting card depending on the center-to-
center distance of the shafts position .
Two-shaft system on U-shaped end support brackets
