8 - PROPULSION SYSTEM 254
8.8.6 Water/fuel separator lters for engines
Maintenance and check
Purge frequency or the replacement of the lter element are determined by
the contamination level of the fuel. The selector valve (or handle indicator) al-
lows the operator to insulate a lter at a time, so as to carry out maintenance
also with engine running.
Water drain from collection tank
Check or drain the water collection tank daily.
The collecting tank must be drained before polluting agents reach the turbine
end.
WARNING
If the engine has to carry on running, select the lter to be left in line and
carry out maintenance on the other one. This operation is a good proce-
dure even if the engine is not running.
• After having placed a capacious collection container underneath it, open
the drain to discharge containments.
• Remove the three screws and detach the lter from the support.
• Fill the device with clean fuel.
• Close the lter and tightly tighten the three screws.
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