PowerQuick Powered Ascender
(15)
PQ500-1 1-Sep-15
3. Command the ascender to climb. If there is a hesitation or inability to
climb, the load is too heavy and should be reduced by about 200
pounds.
4. The ascender is now ready to transport the load to the desired position.
5. Tying a weight of 5 to 10 pounds to the bottom of the climbing rope will
provide adequate downrope tension to prevent bunching of the rope
while in use.
8.12.
Thermal Protection
1. The PQ 500 has a thermally protected motor. Thermal switch
—A
thermal switch rated at 85°C is located near the motor.
2. Operation
—The PQ 500 will lift the rated load 200 feet or about 60
meters of continuous climb without extensive heating if the initial
temperature is 70°F or 20°C. Colder ambient temperatures will result in
longer climbs, while higher ambient temperatures reduce the climb
distance It is recommended that for long climbs, the operator rest the
PQ 500 every 200 feet to allow the unit to remain cool.
CAUTION: This is a high-power unit. External surfaces near the
motor and gearing tends to get hot during extended operation.
The temperature will not burn the skin, however can become
uncomfortable to the touch. May consider optional heat guard.
3. If the sensor detects an over temperature condition, it will open and stop
the operation of the ascender. This function will show as a blinking red
light by the power switch. Normal operation will return when the unit
cools (about 5 minutes). This will be signified by a solid green light.
8.13.
Horizontal applications
The PowerQuick can be used effectively for horizontal as well as vertical access
related to work positioning and egress.
Rigging requires the use of three ropes, one of which carries the primary weight,
a second, which is attached to the ascender, and a third which is used for the fall
arrest.
The three ropes must be rigged using approved techniques (see section 12) From
one side to the other as shown in figure 20-22.
1. The weight carrying rope (shown in blue in figure 21) must be
pulled tight from point A to point B. A pulley is attached to that rope.
2. The fall arrrest rope should be attached in the same process and
pulled tightly.
3. The work rope (shown as orange in figure 23) should be attached
snugly to the upermost height and allowed to hang loose or be
attached loosely.
4. PowerQuick is loaded on the work rope in the normal manner,
5.
Using a
carabiner,
attach the loop
on the pulley
to theloop on the PowerQuick.
6.
Using a separate carabiner, attach the PowerQuick to the loop
on your climbing harness.
7.
Attach the fall arrest to the thirdrope.
8.
Pull the trigger on the ascender to move along the lenth of the
rope.
Figure 23: Attaching the PowerQuick for
horizontal operations.
Figures 20, 21, 22: Fire Department
personnel practice horizontal rigging.
In this case the lines were anchored to
the top of the training tower and back
of the emergency response vehicle.
Summary of Contents for PQ 500-1
Page 46: ......
Page 48: ...NOTES...