Chi Hardware Corporation Limited is located in China, and it is a professional manufacturer of Sectional Garage door and Industrial door hardwares and also a supplier of whole set of doors.
It is a rapidly growing company
First, put the torsion spring center bracket, nylon rubber ring, fixed flange, torsion spring matching the weight of the door body, locking flange, winding wheel, bearing bracket on the galvanized steel pipe in order (distinguish the left and right sides). , and pay attention to whether the parts are installed correctly.
Then, fix the center bracket of the torsion spring to the short wooden board in the upper middle position of the hole with M8×41mm lag screws, and pay attention to avoid the installation position of the chain box. Use M8×40mm bolts to connect the torsion spring center bracket, nylon rubber ring, fixing flange and torsion spring.
Then connect the torsion spring to the locking flange. Then connect and fix the lower end of the bearing bracket with M9.5×19mm cap screws and nuts with the horizontal rail connector, and fix the upper end of the bearing bracket to the side wooden frame with M8×41mm square head screws.
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