13
g) Descent may be interrupted by firmly
grasping the free end of the lifeline.
h) Once the person has reached the ground,
unfasten the person from the harness.
i) Position the other end of the lifeline taut
with no slack before attaching to the next
person to descend.
j) Ensure the derope
®
descent device has
properly cooled before its next use.
5.3
Evacuation on a cableway descent
If it is not possible to evacuate the victim
vertically due to an obstruction, the evacuation
can be carried out down a cableway positioned
at an angle between 30° and 60° (
Figure 13
).
a) The rescuer secures two anchor slings to
the structure. The higher anchorage to be
used for the cableway and the lower point
for the derope
®
descent device.
b) Attach the victim to the descent rope of the
derope
®
descent device and to the cable
way using the 1 ft. (30 cm) lanyard.
c) Two persons on the ground tension the
cableway in the direction of travel to avoid
any obstructions.
d) Release the descending rope from the
jamming cleat and monitor the descent
until the victim is on the ground.
5.4
Hoisting or lowering function
After the derope
®
decent device has been
properly secured above the victim as described
in section 4, the self-locking snap hook at the
extremity of the rope must be hooked into the
frontal or back D-ring on the full body harness
of the victim and secured.
5.4.1
The rope between the device and the person to
be lowered/hoisted must not have any slack;
the free rope on the other side must be pulled
downwards with force. The free end of the
trailing rope is inserted in the aluminum pig tail
so that it can be clamped in the jamming cleat.
WARNING
Ensure that the free end of the Kenmantle
®
rope is
inserted in the jamming cleat.
5.4.2 The handle is folded out from the handwheel
and the handwheel is then rotated in the ‘UP’
or ‘DOWN” direction in order to hoist or lower
the victim to a safe recovery platform or up to
a point where the victim can be released from
his fall protection sub-system.
5.4.3 The rope located in the jamming cleat must
be kept tight during the hoisting of the victim
with the hand crank in order to prevent an
unintentional descend.
5.4.4
Fold the handle back into the handwheel. Pull
the rope located in the jamming cleat out of the
jamming cleat and lower the victim.
Fig. 14
Pig tail
derope
®
Ascending end
of the derope
®
Descending end
of the derope
®
Lanyard
Fig. 13
30º to 60º
Summary of Contents for derope Up A
Page 15: ...15 Fig 15...
