Hitachi ZW 120-6 Operator's Manual page 336

5. Install cap (3) after refilling DEF/AdBlue®. Close the DEF/
AdBlue® tank cover.
IMPORTANT:
 Do not get on top of DEF/AdBlue® tank (2) or sensors
and piping on the tank. Failure to do so may damage
the machine.
 White deposits may be observed when DEF/AdBlue®
is dried naturally; it is normal. Wash out DEF/AdBlue®
deposits with soft water. Never use a high pressure
washer.
f
NOTE:
 Wipe spilled DEF/AdBlue® and wash spilled area with plenty
of water.
 The sound of flowing water may be heard from the tank
after the engine stops. It is the sound of returning DEF/
AdBlue® from piping to the tank, not a malfunction.
 DEF/AdBlue® will freeze at low temperature, and
deteriorate (ammonification) at high temperature. Store
DEF/AdBlue® at temperature between -10 and 40°C (14 and
104°F).
 Use dedicated container (purchased container) to store or
carry DEF/AdBlue®. Alternatively use a polyethylene resin
tank, or stainless steel tank.
MAINTENANCE
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