 Fitting Backpacks
Harness Systems
SYS Harness - Superior Yoke System
 The
ladder Harness System was a favourite with backpack designers for many years.
The SYS has a single adjustable T-Yoke for stable performance
that eliminates backpack sway. The Internal Staves are parallel in this Harness
System transferring the load to the muscles on the lower back either side of
the Sacrum at the base of the spine. The Torso Length is adjustable in 5 cm
increments by moving the Shoulder Harness T-Yoke up or down the webbing ladder
as required. This adjustment provides a facility to optimise the Upper Load
Stabilizer Strap pull position from the shoulder. The Ladder Harness System
is not a true unisex harness and was responsible for prompting some designers
to develop separate harness systems for women.
Features
Haul Loop, Dual Parallel Internal Aluminium Staves, Adjustable T-Yoke on
a webbing ladder, Dual Density Foam Padded Shoulder Straps and Hip Belt, Breathable
Mesh on a Removable Back Cushion, Padded Hip Belt and Padded Lumbar Cushion,
a Sliding Sternum Strap, Shoulder Strap D-Rings, Upper and Lower Stabilizer
Straps, Dual Adjustable Waist Buckle and Keepers on the Waist Belt.
Torso Length
The SYS Harness System allows for an effective adjustment range of 10 cm
either side of the optimum or medium Torso Length, or a recommended adjustment
of 5 cm below and 10 cm above the optimum or medium Torso Length in 5 cm increments.
Superseded
Now superseded, the SYS Harness System was previously available on the Holiday,
Pacific, Antarctica, Main Peak and Basecamp series of White Mountain backpacks.
The SYS Harness System was the superseded by the SSS Harness System.
How do you fit SYS Ladder System
-
Remove, contour, and install the two internal parallel Internal Staves.
These two Internal Staves are easily located at the top of the backpack, behind
two press-stud tabs.
-
Place the backpack on the one shoulder of the individual, with the Hip
Belt undone.
-
NOTE: If you are right-handed yourself perform this operation on
the left side of the individual, or, if left-handed perform this procedure
on the right side of the individual.
-
Position the backpack on the individual, with the Internal Staves following
the contour of the back and the top of the Hip Belt in the correct position
level with or just below the top of the hipbone or Iliac Crest. Do this by
pulling down on the one Shoulder Strap that is over the one shoulder of the
individual.
-
The optimum position of the T-Yoke can then be determined by where the
Shoulder Strap finally comes to rest. The exit point of the Upper Load Stabilizer
Strap from the Shoulder Strap should come to rest below the Clavicle in front
of the shoulder. Estimate the amount of adjustment required up or down in
centimetres remembering that each position change on the White Mountain Ladder
is in 5 cm increments.
-
Adjust the T-Yoke up or down on the backpack by loosening the Upper Load
Stabilizer Straps, undoing the T-Yoke buckle and repositioning as required.
Take care to feed the webbing through the backpack webbing, the T-Yoke Buckle,
the backpack webbing, the T-Yoke webbing and then through the backpack webbing
to the top of the backpack.
-
NOTE: The T-Yoke is adjustable in 5 cm increments, which is the
distance between each web position for the T-Yoke Buckle.
-
NOTE: With the SYS or SHS Harness System, White Mountain™ supply
a removable Back Cushion to fill the gap between the back and the backpack
to provide further comfort. This Back Cushion is removable if further ventilation
is required, and when removed will not interfere with the harness performance.
Position this Back Cushion on the Velcro provided, directly under the Shoulder
Strap padding on top of the T-Yoke.
-
With the Back Cushion in place, pull on the Upper Load Stabilizer Straps
located at the top of the Internal Staves to form a gentle arc in the Shoulder
Straps and for ease of location, feed the excess of webbing through the Shoulder
Strap D-Rings. Pulling these Upper Load Stabilizer Straps to this point enables
the individual to put the backpack on, without it pulling away from the back.
-
Put the backpack on the individual and have them pull the two Shoulder
Straps simultaneously down and towards the backpack. This will gently draw
the backpack into position with the Internal Staves following the contour
of your back.
-
Provided you have positioned the Torso Length correctly, the pull position
of the Upper Load Stabilizer Straps will now be below the Clavicle, or Collar
Bone and you should discover that the Hip Belt is in the correct position
level with or just below the top of the hipbone or Iliac Crest.
-
NOTE: White Mountain™ do provide sliding buckles on the Shoulder
Straps for a finite adjustment in the placement of the Upper Load
Stabilizer Strap pull position, but it is our opinion that these in the
majority need not be used and can stay positioned hard against the
Shoulder Strap D-Ring. These sliding buckles can, however, be moved up
to 25 mm in either direction to optimise the position
of pull from the shoulder.
|
