9
twisted. Verify that the sub-pelvic strap (X) is positioned just beneath the buttocks.
C. All D-rings and other attachment elements are properly positioned.
Verify that the dorsal D-ring, if present, is
positioned between your shoulder blades.
D. All harness straps are properly stored.
Secure adjustment straps with strap keepers, where present. Move all
keepers to strap end.
E. All harness pads are comfortable, if present.
Shoulder pads are along upper back and leg pads are against
buttocks. Pads should remain largely in place and resist sliding.
Figure 7 - Equipment Check
X
3.6
CONNECTING THE BUCKLES:
3M Harnesses are equipped with a variety of buckles for fastening and adjusting harness
straps. See Figure 8 for reference. See Figure 1 for which buckle types are on your harness.
A. DUO-LOK QUICK CONNECT BUCKLES (FIGURE 8A)
1.
Engage:
Insert the tab into the receptor. You should hear a click when the buckle is secured.
2.
Disengage:
Squeeze the lock levers on either side of the receptor. Pull the tab out of the receptor.
3.
Adjust:
Unlock the webbing lock, then turn and hold the buckle 90 degrees from the harness strap. To shorten
webbing, pull down on the adjustment strap. To lengthen webbing, pull upwards on the buckle.
;
The webbing lock only restricts harness strap adjustment. It does not prevent buckle disengagement.
Figure 8A - Duo-Lok Quick Connect Buckles
B. TONGUE BUCKLES (FIGURE 8B)
1.
Engage:
Insert the tongue through the buckle frame. Insert the buckle tab through one of the tongue grommets,
then insert the tongue through the strap keeper to secure.
2.
Disengage:
Remove the tongue from the strap keeper. Pull back on the tongue while also pulling back on the
buckle tab, until the two are released. Remove the tongue from the buckle frame.
3.
Adjust:
Secure the tab through different grommets to adjust fit. Move the tab inward to tighten, out to loosen.
Figure 8B - Tongue Buckles
C. TRI-LOCK REVOLVER BUCKLES (FIGURE 8C)
1.
Engage:
Insert the tab on the revolver end into the access slot on the receptor. Once inserted, pull the tab
downwards until it clicks into the locked position.
2.
Disengage:
Squeeze the lock levers on either side of the receptor. Pull the tab out of the receptor.
3.
Adjust:
To tighten, rotate the ratchet knob away from your body. To loosen, pull the ratchet knob out, then rotate
the knob towards your body.
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3
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