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SIGMA TANDEM SYSTEM OWNER’S MANUAL
11301 - 00.00.0000 Section 2: Equipment • Chapter 4 - Packing & Closing the Main
INSPECT THE DROGUE
Check the envelope for tears and snags. Tiny
holes can be ignored for a few jumps, but
medium to large size tears must be repaired
before the next jump.
Check the outer Kevlar bridle for signs of wear
or broken stitches.
Check the inner Vectran/Spectra kill line for
signs of wear. Common wear points are the
upper and lower 30 inches of the bridle. The
mid-section tends to outlast the ends.
Although a kill line can last 100’s of jumps,
sandy or salty conditions can lower its life.
Make sure both the kill line and the outer
Kevlar bridle are attached to the bag loop with
a correctly tightened #5 stainless rapid link.
Because both the kill line and the bridle are
attached at the same place, you no longer
have to untwist the kill line before setting the
drogue.
Check the disk for nicks, which can be caused
by improper ground handling. A deep, sharp
nick could damage either the container or
canopy on the next jump, and should be
sanded or buffed out. (Your main container
top flap has Velcro pouches with spare parts,
including Emory cloth and a 3/32” Allen
wrench.)
Check that the disk attachment pin is threaded
through its loop on the drogue bridle, and
that the screws are tight. Tighten with a 3/32”
Allen wrench if necessary. A loose screw could
damage or snag the closing loop. A missing
screw could cause the pin to slip out of the
disk chimney, which would cause premature
collapse of the drogue. A little dab of blue
Loc-Tite on the screws will help keep them
in place.
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