Cumberland PNEG-240, Инструкция по установке и эксплуатации

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6. Installation
PNEG-240 Chain Feeding System 29
Suspending the System (Continued)
Cut another piece of 3/16" (5 mm) cable long enough to reach from the winch 3-3/8" (85.7 mm) pulley to
the end of the building. Double clamp one of it to the eye of one of the 3-3/8" (85.7 mm) pulleys and attach
the other end to a stud truss at the end of the building. Line it up with the chalk line and fasten it at the
same height as the winch. Repeat the process by running another 3/16" (5 mm) cable from the other
3-3/8" (85.7 mm) pulley to the other end of the building. Go back to the winch and wrap the center of the
cable around the winch drum so that the two (2) 3-3/8" (85.7 mm) pulleys are at an equal distance from
the winch. Turn winch to tighten main pull cable. Repeat for each trough line.
You are now ready to suspend the system. Attach the 1/8" (3 mm) drop cables to the 3/16" (5 mm) main
pull cable. Measure the distance from the overhead 3/16" (5 mm) cable to the floor and add 1' (30 cm) to
determine the length of the drop cables.
Clamp one end of the first 1/8" (3 mm) drop cable 12" (30 cm) ahead of the first 1-3/4" (44 mm) pulley
mounted on the ceiling joist. This must be a full 12" (30 cm) from the pulley toward the winch. Thread the
1/8" (3 mm) cable through the pulley and let it hang to the floor. Repeat the process for every pulley in
the line.
Pass the drop cables through an adjustable cable lock, through the suspension bail and fasten the loop
with the cable lock. There must be a minimum of 6" (15 cm) of loop, measuring from the top of the
cable lock to the bottom of the loop. Adjust the cable lock to put a little tension on the drop cable.
(See Figure 6D on Page 23.)
Suspending the sections of feeder line near the center of the building requires a “switch-back” rigging of
the drop cables to tie them to the main pull cables. Usually this will involve no more than four (4) drop
cables, two (2) on each side of the winch. These will require longer drop cables, to be measured
individually to match the placement of the extra “switch-back” pulley. The extra pulleys must be placed
about 6" (15 cm) off the center line and beyond the reach of the 3-3/8" (85.7 mm) block and tackle pulley
when the feeder is lowered to the floor. The drop cables are clamped 12" (30 cm) ahead of the extra
pulleys and run horizontally from the extra pulley to the drop pulley and down to the feeder line.
(See Figure 6J on Page 26.)
To hang the hopper, cut three (3) pieces of 1/8" (3 mm) cable 3' (30 cm) longer than the distance from
the floor to the 3/16" (5 mm) main pull cable. Thread the cable through the 3-3/8" (85.7 mm) pulleys and
double clamp one end to the 3/16" (5 mm) cable 12" (30 cm) toward the direction the 3/16" (5 mm) cable
will travel. Use adjustable cable locks to attach the ends of the 1/8" cables to the hopper.