4 Leg Adjustable Slings – Yalex & PolyPlus™
Yale Cordage, Inc. 2011
These instructions are for standard 4 leg adjustables made with Yalex or Polyplus 12-strand single braid.
Scissors, Rope fid, measuring tape, masking/electrical tape, marking pen, Large needle, chafe and long shot twine.
- Determine length of legs using the single leg adjustable formula.
- Lay out the fixed eye ends of all legs and make the first eye mark at a fid and one short from the bitter end on each leg.
- Make the second eye mark across from the first on each leg after forming the desired eye size.
- Pass the tail of each leg through a single piece of chafe sleeve to form a single eye. Before beginning, test the chafe for the fit of the 4 legs required. (See photo 1)
- Perform a single interlocking brummel splice on each leg using a two pic spacing. (Note: The distance of two pic’s is approximately the same as the diameter of the rope used.) Before burying the remaining tail, place a mark at ¾ of a fid down and bury into the standing portion at the same 2 pic spacing again. Exit the standing portion at about ¾ of fid down, cut the tail off at the ¾ fid mark then barber cut the tail at about 45 degree’s back and milk the tail back in.
Note: You will need approximately 18’ of 1/16” Ultrex to sew and lash the 4 legs of a 3/8 or 7/16 YLX or PP. The following lengths of Long Shot will be used for sewing and lashing, 20’ for ½”, 25’ for 5/8” and for ¾” use 35ft of 5/32 Maxi Braid or Ultrex.
Use the following to space the stitching and adjust the length of whipping and lashing. The total number of stitches through the legs is 2 times the rope diameter multiplied by 8 (EX: ½” Yalex number of stitches = 2 X ½” = 1 times 8 = 8 stitches total, a stitch is completed by passing the needle & material through the center of all 4 legs). The stitches are spaced over the 2 diameter length with approximately ¼” between each stitch going down. The width of the whipping and lashing will be enough to just cover the stitching.
Starting at 1 to 2 pic lengths above the entrance of the buried tail, run the needle through the middle of the 1st leg to the next and continue going around through the middle of all 4 legs, once you have gone completely around start the next stitch going down the rope about ¼” and enter the middle of the next leg,. The spacing should allow for ½ the stitches required going down then the 2nd half going up in between the first half. (See photos 2 thru 4.) After completing the 1st half going down enter the middle of the 1st leg again going up between the previous stitch. Ensure that the stitching is tightened down as much as possible. Exit the last stitch by coming back out at about the same location as the original entrance. Tie the tails without loosening the stitches, then melt together. (See photo’s 4 & 5.)
- Starting at the top of the stitching perform a standard whipping around all four legs over the stitched area finishing at the bottom of the stitching. Photo 6 shows the whipping in place. Sew the short tail of the whipping through two legs and exit the opposite corner seen in photo 7. This will allow you to exit the long tail and to tie the short tail and seal the ends.
- Take the remaining long tail up through the adjacent pair of legs as seen in photo 6. Lash around the whippings a minimum of 3 times as tight as possible, then wrap the twine under 1 leg at 90 degrees and add another 3 lashings as tight as possible. (See photo 8). Add one more lashing in the same direction, then using the needle put two half hitches around the 3 lashings and sew through the same leg as the short tail to exit next to it. (See photo 8.) Knot the ends and melt them together.
- Measure from the inside of the eye to the entrance point of the adjustment handle and add mark I to form the required minimum length.
- Moving back up the adjustment section, towards the fixed eye, place a mark at 1 fid length, mark II, for the exit point of the adjuster.
- Attach the fid to the end of the adjustable tail and insert at mark I and exit at mark II and complete with a standard handle. If chafe is required add to each leg prior to burying the adjustable tails.
Note: The whip locks and lashings functions as an indictor of excess load under severe angles. Inspect after load for damage. If overloading has occurred the sling must be removed from service and inspected. If the whipping/lashing has been damaged in use or removed, inspect the sling and rewhip as necessary.