Model H1301 Recovery and Recycling System
Installation, Operation and Maintenance Manual
Revision-L September, 2019
Page 52 of 105
VII. System Maintenance Procedures
H. Moisture, Acid, and Processed Particulate Filter Element Replacement (continued)
30. Install the aluminum housing onto the filter head and over the filter element by
threading in a clockwise rotation.
31. Remove the bolts from the top cover of the moisture filter and acid filter using the ½”
socket wrench. Remove the top covers from the filter housings.
32. Remove the sealing gasket from each top cover. Do not scratch or mar the seal
glands of the top covers.
33. Lift the spent filter/drier cores from the housing of each filter.
34. Install two new moisture filter cores part number, A4-04-2100-00-0, into the moisture
filter housing as depicted by figure-10.
35. Install a new acid filter core part number, A4-04-2100-01-0, into the acid filter housing
as depicted by figure-10.
36. Install new sealing gaskets part number, 4-04-7000-12-0, or use the gaskets supplied
with the filter cores, to the glands of both top covers.
37. Position the top covers onto the filter housings and secure into position using the bolts
previously removed. Initially tighten the bolts to 40-inch pounds. Retighten all bolts to
verify an even torque on each bolt. Retighten all the bolts in 20-inch pounds increments
to achieve an evenly distributed 100-inch pounds of torque on each bolt.
CAUTION: Do not allow the filter/drier cores to remain exposed to the ambient air.
Install the cores immediately after opening the sealed containers. The
cores will absorb moisture from the air reducing the water removal
capacity of the filters.
38. Connect a source of clean dry nitrogen, regulated from 200 to 250 psi, to the filter
maintenance access valve AV-4 pressurizing the filter section.
39. Leak test the processed particulate filter housing to filter head seal using leak detector
fluid.
40. Leak test the moisture filter and acid filter top covers using the leak detector fluid.
NOTE: Leaks in the moisture and acid filter top cover seals usually can be stopped by
tightening the retaining bolts. Leaks in the processed particulate filter may require
new O-ring or backup ring installation.
41. Close and disconnect the nitrogen source from the AV-4 access valve.
42. Depress the core of the AV-4 access valve to release the nitrogen pressure from the
filter housings.
43. Connect a vacuum pump and vacuum gauge to the AV-4 access valve. Operate the
pump to evacuate the filter housings to a 1000-micron minimum vacuum level.
44. Remove the vacuum pump and vacuum gauge from the AV-4 access valve.
45. Adjust the pressure of the nitrogen source to provide low pressures between 5 and 10
psi.
46. Connect the low-pressure nitrogen source to the AV-4 access valve and pressurize
the filter section from 5 to 10 psi.
47. Close and remove the nitrogen source from the AV-4 access valve and install the cap
back to the access valve.
48. Open the two maintenance ball valves MV-2 and MV-3 previously closed.
49. Close and secure the filter maintenance access door of the control panel black hood.
50. Reconnect the main electrical power back to the machine.
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