Chapter 6: Shutdown and Maintenance 187
• Reduce the sheath pressure to 10 psi.
• Using a paper towel to cover the quick-disconnect coupling, disconnect
the sheath line from the filter outlet tubing at the top of the filter.
Figure 6-1 Disconnecting the sheath line above and below the filter
• Using a paper towel to cover the quick-disconnect coupling, disconnect
the sheath line from the filter inlet coupling at the bottom of the filter
(Figure 6-1).
• Connect the two sheath line couplings together (Figure 6-2 on
page 188).
• Set the sheath pressure back to its original setting.
quick-disconnect couplings
metal clip
sheath line (outlet)
sheath line (inlet)
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