Dräger Medical Narkomed GS, Setup And Installation Manual

Page: 43 / 92

Gas Supply Connections
4
Draeger Medical, Inc. Narkomed GS Setup and Installation Manual 4-3
Connecting
the Cylinders
The Narkomed GS is equipped with ANSI standard pin-indexed hanger
yokes for E-size gas cylinders.
WARNING: Oil and grease may combine explosively with oxygen or
nitrous oxide. For this reason, oil and grease must never come
in contact with pipelines, cylinders, cylinder valves, gauges,
fittings, etc., which conduct oxygen or nitrous oxide within the
machine. For further information regarding safety
precautions in the use of medical gases, consult Compressed
Gas Association pamphlet P-2 and appropriate sections of
National Fire Protection Association Standard 99.
Attach cylinders as follows:
1. Place a new washer on the seat of the yoke gas inlet connection.
WARNING: Use only one cylinder washer per yoke. Using more than one
washer could cause leakage of the cylinder gas and
compromise the pin indexing system.
2. Verify the presence and integrity of the two index pins below the gas
inlet.
WARNING: Check cylinder yokes for the presence of two index pins each
time a cylinder is attached to the machine.
3. Insert the head of a gas cylinder with matching gas into the yoke from
below, so that the gas outlet and indexing holes on the cylinder head
are facing the gas inlet and indexing pins on the yoke. (See the “Gas
System Color Coding” table at the beginning of this section.)
4. Engage the indexing holes with the index pins. Screw the yoke handle
clockwise against the cylinder head, so that the point of the yoke
handle bolt is aligned with the countersunk recess on the back of the
cylinder head.
5. Verify that the sealing washer is in place, that the index pins are
engaged, and that the cylinder hangs vertically. Tighten the handle
securely.
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