Hitachi ZAXIS 120-6 class Operator's Manual page 453

4. Remove cap (4) from DEF/AdBlue® tank (2) and refill DEF/
AdBlue®. Be sure to stop refilling before the "F" line by
checking the level gauge (5) float.
IMPORTANT:
 Make sure the containers and equipment used for
refilling are free of contaminants, such as sand, mud
and dirt. If any contaminants are present, either rinse
them off with soft water or wipe then off with a clean
cloth before refilling.
 Take care not to allow dust and/or water to enter the
DEF/AdBlue® tank when refilling.
 Put cap (4) of DEF/AdBlue® tank (2) on the cap holder
(3) to prevent the cap from contamination.
 If DEF/AdBlue® is filled above the "F" line, the system
may be damaged during operation or tank (2) may
be broken when frozen.
5. Install cap (4) after refilling DEF/AdBlue®. Close the tank
cover and lock it with the key.
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.
 If it becomes necessary to refill DEF/AdBlue® when
cap (4) can not be removed due to freezing, use
emergency filler port (6).
 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.
 Use dedicated container (purchased container) to store or
carry DEF/AdBlue®. Alternatively use a polyethylene resin
tank, or stainless steel tank.
MAINTENANCE
2
4
7-159
3
5
F Line
F
5
Float
Level Gauge
6
MDC1-07-064
MDC1-07-053