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NM3
( ) 6.2 Yoke Assemblies and Gauges
6.2.1
Yoke Assemblies (All Gases)
6.2.1.1
6.2.1.2
6.2.1.3
6.2.1.4
6.2.1.5
6.2.1.6
6.2.1.7
6.2.1.8
6.2.1.9
6.2.1.10 Attach the cylinders to the yokes, or reinsert the yoke plugs.
Rev. V
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Turn the System Power switch to STANDBY.
Disconnect the pipeline supply and/or close the cylinders.
Remove cylinder or yoke plug from each yoke assembly.
Are the two (2) yoke pins installed securely in each yoke? ___ (Y)
Is there only one (1) cylinder washer on each yoke assembly? ___ (Y)
Is there a yoke plug attached to each yoke assembly? ___ (Y)
Is the proper gas identification label affixed to each yoke assembly?
___ (Y)
Attach a cylinder to each yoke assembly, open the cylinder valve, let
the pressure stabilize, close the cylinder valve, and remove the
cylinder from the yoke assembly.
Does the yoke check valve assembly prevent the escape of excessive
pressure? ___ (Y)
6-3
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PMC PROCEDURE (continued)
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Troubleshooting
