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Servicing Fine Filter(s)
There are two types of AXI International spin-on fine filters available.
1.
The standard 3 or 10 or 25 micron fine filter (FF-3, FF-10, FF-25)
2.
The special 3 or 10 micron water block fine filter. (WB-3, WB-10)
The AXI International Water Block removes entrained and emulsified water from fuel and oil.
Changinf Filters:
The pressure gauge on the filter head shows the pressure drop over the filter. Red or 20-25 PSI indicates when the spin-on
filter element should be replaced.
1.
Before replacing the filter element, place an appropriate container under the drain valves.
2. Open both the drain valve on the separator and the drain valve under the pump. Use the air purge valve on top of the
separator to make sure all fluid has been drained from the system before changing the filter.
3.
The water block filters are used to remove entrained and emulsified water from the fuel/oil stream. Saturation of water
block filter will cause the pressure drop over the filter to increase.
4.
When the pressure drop over the filter blocks the fuel flow and the filter element is not changed, the bypass valve in the
pump may open and the system will idle. This should only be allowed to happen for no more than 30 seconds.
5.
Apply a film of lubricating oil to the gasket of the new filter. Screw filter on to the flow adaptor until the gasket is tight and
secure (an additional 1/2 to one turn after the filter makes contact with the gasket).
6. Check for leaks when re-starting and pressurizing 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.
! IMPORTANT ! The internal bypass valve of the pump can only be operated for less than 30 seconds.
Longer periods can lead to overheating the fuel in the pump head, cause fire and explosion hazard as well
as damage the pump.
Note: Disposal of fuel, associated waste, and filters must be in accordance with all applicable Federal, State, and Local
rules, laws, standards, and regulations.
MAINTENANCE
