3
Draeger Safety, Inc.
Handy Pak/Rescue Pak
2 Operation
2.1
Set-up
(Refer to Figure 1)
• Install cylinders on Handy Pak and ensure cylinder straps are tight. Low
pressure (2216 PSI) and high pressure (4500 PSI) cylinders can be used.
• Install CGA-347 connections to cylinder valves and tighten with
hand-tight wheels.
• Make sure both bleeder valves are turned fully clockwise to prevent air loss,
and open one cylinder. At this time the low pressure whistle will sound going
up until it sets itself around 1000 PSI.
• Check the cylinder pressure on gauge.
• Close the cylinder valve and slowly bleed off pressure through relief valve.
• The low pressure whistle should alarm at approximately 500 PSI.
• Open the other cylinder and check its pressure on gauge.
NOTE
Always use full cylinders.
• Set respirator pressure with regulator control knob.
• The system is now operational.
2.2
Use
When the cylinder in use has been drained to approximately 500 PSI, the low
pressure whistle will sound indicating that the cylinder needs to be changed.
To change a cylinder while the Handy Pak is in use:
• Open the second cylinder and note the gauge pressure to ensure that the
cylinder is full.
• Close the drained cylinder and open the corresponding bleeder valve to
relieve pressure on the hand tight nut.
The system is equipped with check valves that will prevent back flow from the
other cylinder in use. The high pressure inlet is used to attach an external air
source as its primary air source.
2.3
End of Use
• Cylinder valves must be shut and line pressure relieved through the relief
valve to drain the cylinder in use.
• Remove CGA-347 connection from cylinders.