Instead of using two pieces of cord that are connected half way,
this technique uses a single piece of cord that runs through the
pulleys on the riser and down through all the points on the
harness right up to the speed bar. This eliminates the problems
of having a restricted speed bar range.
To rig your system, use a single cord (supplied with Apco gliders,
attached to the speed bar). Attach this cord to the webbing loop
of the upper pulley attachment on your risers, and thread it first
through the lower pulley on the riser and then through the upper
one. Now pass the cord through the first pulley on your harness
(located just below the carabiner/hook-up point of the harness).
Then pass the cord through the webbing channel that leads
down to the second pulley attached to the rear corner of the seat
board. Next, pass the cord out through the grommet (eyelet)
situated near the front corner of the seat board, and then attach
it to your speed bar. Adjustment of this system can be made
either at the speed bar end or at the attachment point on the
riser. To correctly adjust this configuration, follow the
IMPORTANT Adjustment Instructions, which follow the alternative
rigging instructions below.
Alternative 2
Use this method if you want to retain the advantages of the
Standard Method, but need to extend the speed range to its
maximum.
Assemble your speed system as described in the Standard
section, but do not thread the cords through the upper set of
pulleys (located just below the carabiner/hook-up point of the
harness), and the webbing channel below it. Instead attach the
cord directly to the chainlink/clamp on the riser, after threading it
through the pulley on the rear of the seat board. This allows the
chain-links/clamps to move lower, thus increasing the speed
range.
Alternative 3
This method retains all the advantages of the Standard but it
increases the required effort to apply the speed bar. This is
achieved by reducing the reduction ratio on the risers from 1:3 to
1:2.
To do this, assemble your speed system as described in the first
section (recommended). Now detach the cords from their
attachments on the webbing loop of the upper pulleys on your
risers and remove the cord from the lower pulleys on the risers.
Now attach the cords directly to the loop retaining the lower
pulleys on the risers. The cords should now run from the
webbing loop of the lower pulley, through the upper pulley and
then via the chain-link/clamp to the upper pulley on the harness.
The cord on the risers will need to be shortened by the
appropriate amount, so that the chainlink/clamp is situated just
below the upper pulley on the riser. To correctly adjust this
configuration, follow the IMPORTANT Adjustment Instructions,
which follow the alternative rigging instructions below.
Alternative 4
Using this method, the assistance given to the floating seat by
the speed system is removed. This eliminates the problems of
the chainlink/clamp meeting the upper pulley before the full range
of the speed system can be applied. The floating seat board will
still move as before, but not quite as far.
