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Servicing Fine Filter(s)
There are two types of AXI International fine filters available.
1.
2 to 30 micron particulate filter
2.
5 to 30 micron water block fine filter
The AXI International Water Block removes entrained and emulsified water from fuel and oil.
Changing Filters:
The pressure gauges on the fine filter vessel show the pressure drop over the filter. 20-25 PSI indicates when the filter
element should be replaced. The water block filters are used to remove entrained and emulsified water from the fuel
stream. Saturation of water block filter will cause the pressure drop over the filter to increase (even if the pleated filter paper
does not show any contaminates).
1.
Before replacing the filter element, close the valves prior and after the fine filter vessel for complete isolation. Make sure
all pressure in the system has been released (open air vent valves carefully and slowly).
2.
Make sure pump is turned off, and then open the lid.
3.
Replace filter element and hand tighten top seal plate nut. Check inner housing and basket for debris and sludge and
remove if necessary.
4.
Apply a film of lubricating oil to the lid gasket. Replace O-Ring if worn or damaged.
5. Tighten lid screws evenly (alternating the screws) to ensure lid is fully seated onto O-Ring gasket.
6. Verify inlet and outlet valve positions for proper operation mode and make sure all drain and air vent valves are closed.
7.
Check for leaks and vent air from filter housing when re-starting the system.
The material trapped inside the filter can be inspected to better understand the types of contaminants that have been
removed from the tank.
Note: Disposal of fuel, associated waste, and filters must be in accordance with all applicable Federal, State, and Local
rules, laws, standards, and regulations.
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