Page 235 - Bài 1 ok_Neat
P. 235
running end of the belay rope through a separate carabiner attached to the anchor,
behind the 540°™. Do not belay a load using the Release Lever to manage the feed, as
this may prevent rope-locking if the load were to suddenly drop.
While lowering or raising, feed the rope straight into the 540º™, in order to prevent
accidental locking of the device. This is especially important with wet, dirty, muddy,
fuzzy or stiff ropes. While lowering with a gloved hand, provide resistance to the
standing part (load-side and with the other hand, simultaneously feed the running end of
the rope into the device (Figure
98). During a raising, do not
attempt to pull the belay line
through the device with both
hands hauling on the running end
opposite of the loaded side. This
will only result in a lock-up of the
device. While raising, with each
hand on separate strands, pull up
on the standing part and feed it
into the device, while pulling out
the running end with the opposite
hand. Figure 97- Belaying with 540°™ Rescue Belay device.
To Lock Off the Belay Manually
In a situation where the belayer needs to manually lock off the 540º™, it is
accomplished by firmly holding the running end and with the opposite hand sharply
tugging on the standing part. Additional security can be achieved by tying a bight of the
running end off around the around the standing part with a Half Hitch and an Overhand
Knot. This should be done anytime the device will be left unattended.
Releasing a Locked Belay
If the belay rope is only lightly locked, then a quick reversing of the direction of rope
feed can return the pulley to its neutral, or centered position. If this cannot be
accomplished, first confirm the main line is locked off and using the release lever, slowly
transfer tension back to the main line. Once this is completed, rope will begin running
freely through the 540º™ as the pulley is returned to a neutral position. Transfer the
tension back to the main line, ensure that the pulley is returned to its neutral. If the 540º
catches a rescue-sized load and receives significant shock force, the rope within the
device may “stiffen” during fall arrest. Initially releasing the device handle may be more
problematic. Traverse Rescue recommends threading a webbing sling through the top
105 | P age