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are routed under or over back straps or reserve ripcord housings. If necessary, draw a diagram
of the routing or take a picture so that the replacement housings are routed correctly.
1.2 Remove any tackings or clamps that hold the housings together and/or to the container.
Remove the housings from the system.
2.0 REASSEMBLY:
2.1 Install the replacement housings into their respective locations
as per the original installation. Usually the longer
housing is installed first and then the shorter one.
2.2 Make sure that the flat side of the housing terminal end is
orientated outward so that it lays flat against the rear of the
main riser when the 3-ring release is assembled correctly
[Figure A].
7-56
2.3 Align the handle end of the housings and secure as per
the original installation. This may be with either a double
clamp [Figure B] or hand tacking. Figure C shows a typical
method of using supertack to secure the housings
together.
2.4 If hand tacking is used, it is desirable to cover the tacking
with heat shrink tubing. Place a length of tubing over the
housing ends and shrink using the heat gun [Figure D].
2.5 Secure the double housing to the container/back pad or
pocket assembly. Depending on the manufacturer, it may be necessary to provide a certain
amount of “float” to the housings in order that the loop of the riser is not loaded or under tension
when the main canopy is deployed. If available, consult the owner’s manual for correct
positioning and tacking.
Some systems use a double clamp to secure the housings together as well as to the container
or pockets. If these are used, inspect the clamp to make sure that it was not damaged when
removing the housings and can be reused. Crimp the housings, making sure that the clamp is
tight so the housings cannot work loose [Figure E].
2.6 Route the release cables through the housings to make sure there are no obstructions.
3.0 INSPECTION:
3.1 Check for correct routing of the housings.
3.2 Verify correct orientation of the terminal ends.
3.3 Housings should be secured together at the handle ends.
3.4 Housings should be secured to the container/back pad or pockets with either clamps or supertack.
3.5 There should be sufficient slack or “float” in the housings.
3.6 Housings should be clear.
7-57
Harness repairs are almost always a major repair.
Consequently, they are master rigger work. About the
only repairs open to a senior rigger are replacement of
ripcord pockets and Velcro®; and replacement of hand
tackings for ripcords, comfort pads, 3-ring housings,
and other hardware. Major harness repairs are the most
critical maintenance operations a rigger can perform on
a parachute assembly. Even seemingly innocuous
repairs, if done incorrectly, can have fatal consequences.
Depending on the type of harness design,
repairs to the harness main lift web or leg straps involve
major repair or remanufacture.
According to Title 14 of the Code of Federal Regulations
subsections 65.129 (e) and (f), “No certificated parachute
rigger may – (e) Pack, maintain, or alter a parachute in
any manner that deviates from procedures approved by
the Administrator or the manufacturer of the parachute;
or (f) Exercise the privileges of his certificate and type
rating unless he understands the current manufacturer's
instructions for the operation involved...” In other words,
because this operation is a major repair, the person doing
the work must be a currently certificated master parachute
rigger with the appropriate ratings.
In the past, many master riggers felt that they were
empowered to undertake almost any task. The attitude
was, “We can lift the TSO label, build a new harness, and
put the TSO label back on.” This is not the case. Just
because an individual has a master rigger license does not
mean he or she is qualified to undertake a complex repair.
There are four primary areas of concern that need to be
addressed in any repair program. They are:
1. Inspection, damage identification, and repair planning.
2. Teardown and cleanup.
3. Preparation and reconstruction.
4. Quality Control inspection and record keeping.
Main risers are components that are subject to extreme
wear and tear. The only items that are practical for
repair are the 3-ring locking loops and the toggle
mounting/Velcro® assembly. Once the webbing begins
to show wear, it is more practical to replace than repair
them.
7.3 The following are repairs found in Section 3 of this
chapter.
7.3.1 Chest strap replacement
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Parachute Rigger Handbook(86)
