Cryomech LNP-40, Инструкция по установке, эксплуатации и текущему обслуживанию

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Routine Maintenance
8-7
8.7 Replace air filter (CP900 air cooled compressors only)
1) Lift the air filter access panel, located on the front of the compressor package, to gain
access to the air filter.
2) Pull the air filter out.
3) Slide in a new air filter making sure the air flow arrow on the filter is pointing up.
4) Close the access panel.
8.8 Filter element replacement
Required tools:
Quantity Description Comment
1 3/4” Open end wrench For check valve
1 11/16” Open end wrench For compression fitting nut
1 5/8” Open end wrench For water filter and ADV fitting
1) Disconnect the nitrogen flex line from the nitrogen generator.
2) Close the compressed air outlet valve on the air compressor.
3) Relieve the pressure in the filter assembly by activating the automatic drain valve’s
manual override.
4) Disconnect the compression fitting directly below the water filter bowl. Turn the
compression fitting nut with the 11/16” wrench while holding the fitting body with the
5/8” wrench.
5) Disconnect the compression fitting on the check valve located below the oil
coalescing filter bowl. Turn the compression fitting nut with the 11/16” wrench while
holding the check valve with the 3/4” wrench.
6) Disconnect the compression fitting on the inlet fitting of the automatic drain valve.
Turn the compression fitting nut with the 11/16” wrench while holding the fitting body
with the 5/8” wrench.
7) Remove the tubing assembly from the filters and the automatic drain valve.
8) Remove the bowls from the filters by turning them to the left to unlock them and then
pulling down to separate them from the filter heads.
9) Unthread the element retainer from the tie rod in order to remove the filter element.
10) Make certain the replacement element part number printed on the element matches
the element part number on the label attached to the filter head.
11) Install a new filter element and thread the element retainer onto the tie rod.
Tightening the element retainer 1-1/2 to 2 turns, after it first contacts the filter
element, securely seals the element. Do not use excessive force or tools on the
element retainer.
12) If necessary, clean the filter bowls before replacing them. Make certain the carbon
filter bowl and after filter bowl are completely dry before replacing them.
13) Inspect all O-rings and replace if necessary.
14) Slide the filter bowls onto the filter heads and turn to the right to lock the bowls in
place. Proper replacement of the filter bowl requires the sight glass to be aligned at a
90° position from the filter’s inlet/outlet ports.
30July08