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
81
9
suPPLEmEnt
Installation of bumpers
Mark and drill 2 holes
∅
8 mm in the bottom
horizontal tracks .
fix the c-profile using bolts with semi-round head М8х25 and flanged nuts .
fasten the spring bumper using lock plates
and bolts and nuts . adjust the bumper's
position and tighten the nuts .