Replace The Def/Adblue® Back Flow Line Filter - Hitachi ZAXIS 135US-6 class Operator's Manual

Replace the DEF/AdBlue® back flow line filter
--- every 4500 hours
IMPORTANT: Replace the filter without cleaning. Reusing
after cleaning may cause a malfunction.
There is a circuit returning DEF/AdBlue® from the DEF/
AdBlue® supply module to the DEF/AdBlue® tank. This circuit
is equipped with a back flow filter. The back flow filter must be
replaced periodically. When it is time to replace it, contact your
nearest authorized dealer.
MAINTENANCE
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