476
Issue date: 17 November 2006
10 of 80
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Short
Medium
Long
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2
3
1
4
4
2
Adjustment
3.14
Three pre-set height settings are available to suit the body length of the individual wearer (‘S’ -
short, ‘M’ - medium, ‘L’ - long), and these associated letters are embossed along the guide arms
of the shoulder yoke.
3.15
A locking mechanism for the shoulder yoke is located at the rear
of the backplate and consists of two spring loaded buttons.
3.16
Body length adjustment is achieved by using the finger and
thumb to open the locking mechanism buttons, and then sliding
the shoulder yoke to align the buttons with the required ‘letter’.
3.17
Releasing the buttons will allow them to retract and locate into the
slots in the guide arms when an audible ‘click’ will be heard
locking and securing the shoulder yoke to the required height
setting.
3.18
This adjustment is carried out during ‘A’ and ‘B’ testing if
required.
4
Harness and cylinder strap assembly
4.1
The harness arrangement consists of the following:
1.
Left, and right shoulder padding with slide lock
buckle, hose retaining flap – button locking.
2.
A pair of adjustable (pull-down) shoulder
straps connected to the slide locks buckles of
the shoulder padding.
3.
A pair of waist padding elements with a buckle
arrangement fitted to the slide lock buckles
strap.
4.
A pair of adjustable (pull forward) waist belt
straps with a push-in quick release buckle set.
4.2
The inner padding is produced from a flame
retardant, closed cell, fully vulcanised Polyolefin
foam. The inner liner is then covered with outer
layers of woven polyester covered with
Neoprene. The outer edges are covered with a
stitched binding of the same material as the outer
layer.
