3
Draeger Safety, Inc.
K-Kart II
2 Operation
2.1
Set-up Procedure
• Remove clevis pin near the 16" wheels. Push the handles up and forward to
situate the cart in an upright position. Reinstall the clevis pin.
• Install, arrange and index the air cylinders so that the valve outlets are facing
away from the control panel. Secure cylinders by tightening the straps at the
buckle and mating the velcro sections.
• Install CGA-347 hand tight nuts on the cylinder valves and tighten. Ensure
both bleeder valves are closed by turning fully clockwise.
• Open one cylinder. At this time the low pressure warning alarm will sound
until it sets itself at approximately 1000 psi (69 bar). Check reading on gauge
to verify that it is full. Close the cylinder.
• Set required respirator pressure with the regulator control knob and bleed
pressure by partially engaging a male plug into one of the respirator fittings.
This depressurizes the manifold and simulates low cylinder pressure. The
low pressure warning alarm should sound at approximately 500 psi (35 bar).
• Open the second cylinder. At this time the low pressure warning alarm will
resound until it sets itself at approximately 1000 psi (69 bar). Check reading
on gauge to verify that it is full.
2.2
Use
• Open an air cylinder valve. The whistle will sound up to approximately
1000 psi until the whistle resets.
• Check gauge pressure to make sure the air cylinder is full.
• Check the alarm whistle operation by closing both air cylinder valves. Slowly
bleed off the air pressure and note the gauge pressure at which the alarm
activates (approximately 500-600 psi). Reopen the main air cylinder valves.
• Adjust the output regulation to the required pressure for the attached
respirators. Turn the regulator knob clockwise to increase the output
pressure. The system is now operational.
2.2.1 Low Pressure Alarm
• The low pressure alarm will sound when the cylinder pressure has dropped
to approximately 500 psi, indicating that the cylinder needs to be replaced.
2.2.2 Changing a Cylinder While in Use
• Open second cylinder and check the pressure gauge to ensure that it is full.
• Close the low cylinder and slowly loosen the bleed valve to release any
pressure.
• Remove connecting whip. The check valves will prevent a release of air
pressure from the second cylinder.
• Reinstall a full cylinder, reattach connecting whip, close bleeder valve and
continue working.