11. SHAFT ASSEMBLY-From the hardware carton remove the cable drums, and the center bearing plate. Start the set screws into the cable drums and springs. The drums are marked LH and RH.
In order, slide the LH drum onto the tubular shaft, then the right wound spring, the center bearing plate , the left would spring and the RH drum. It is possible you may only have one spring. The drum's set screws should face inward toward the set screws in the winding cones on the ends of the springs.
Bolt the springs together through the hole in the bearing plate with 3/8" bolts. Check that the diagonal corner will be down when the assembly is over the door. Attach the spring caution tag to one of the 3/8" bolts. Hand tighten the set screws to the shaft so the springs cannot slide on the shaft.
Torsion Spring Installation
You are now ready to assemble the track
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