Hitachi ZW 370-6 Operator's Manual page 68

 Refill DEF which meets JIS or ISO (International
Organization for Standardization). If improper
liquid (diesel oil, kerosene or gasoline) is refilled in
the DEF tank, fire or system failure may result.
 Use only recommended engine oil. Using engine
oil other than the recommended may result in
malfunction of the aftertreatment device.
 Contaminated fuel, incorrect fuel additives,
gasoline, kerosene or other incorrect fluids will
damage the fuel injection system and will lead
to engine malfunction, which is not covered by
warranty. Incorrect fuels will also damage the
aftertreatment device.
Use only clean Ultra Low Sulfur Diesel (ULSD) fuel
without additives that contain metal elements, oil
distillates or alcohol. These items will permanently
damage the aftertreatment device and are not
covered by warranty.
 Do not modify the machine without authorization.
Never attempt to modify the air inlet and exhaust
parts such as the air duct, aftertreatment device
and the exhaust outlet. Also never attempt to
disassemble the aftertreatment device.
 Avoid giving shocks on the aftertreatment
device by hitting elements with other objects or
dropping the device. Failure to do so may affect
the aftertreatment device, possibly damaging it or
lowering its performance.
 It is normal to see white smoke appear during
regeneration. It is not caused by a malfunction.
Do not attempt to perform aftertreatment device
manual regeneration indoors in an area that is not
well ventilated or free from flammables.
 Ammonia odor may occur during aftertreatment
device regeneration temporarily, but is not a
trouble.
 Consult your authorized dealer for checking or
repairing the aftertreatment device.
OPERATOR'S STATION
1-4