Craftsman 53479 Owner's Manual page 9

Assembly Step 1 (Continued)
Assemble the Rail
4. Begim_ing with the sprocket end, straighten the two
rail sections so that the screw rod is in a straight line at
the joint. (Avoid handling the joints, which may have
sharp edges.)
5. Carefnlly slide the pins at the top edge of the rail into
the openings on the adjacent rail. It is essential that
the rail assembly be on a level surface to achieve
proper alignment and to avoid damage to the pins.
6. Insert two 1/4"-20xt-3/4" bolts through the center
holes of a brace, and place its open length against the
rail at this joint, aligning the holes as shown. Position
another brace on the opposite side of the rail over the
bolts, add 1/4"-20 lock nuts, and hand tighten. Insert
two additional bolts and hand tighten.
Lock
Nuts
7. Keeping the rail straight and on a level surface, grasp
the screw rods on each side of the relnaining joint and
pivot into a straight line. Repeat steps 5 and 6.
8. With a 7/16 wrench, tighten bolts til snug, working
froln the center holes of the braces to those flmher
froln the joints. Do not overtighten.
Sprocket End
Rail
Support
Brace
Alignment Slide End
Hole Rails Towards
Center Rait
Door End
Lock
Nuts
Rail
Support
Brace
Rail Pin
AIignment
Center Rail
J 1/4x20x1-3/4"
Bolts
Stide End
Rails Towards
Center Rait
Hardware Shown Actual Size
BoIt 1/4"-20
1/4-20xl-3/4" (8) Lock Nut
1/4x20x1-3/4"
Bolts