Overheat Indicator (Red); Engine Oil Low Pressure Indicator (Red); Aftertreatment Device Warning Indicator; Aftertreatment Device Regeneration Request (Blinking Yellow) - Hitachi ZW 120-6 Operator's Manual

Overheat Indicator (Red)

If the engine coolant temperature increases to the abnormally
high range, the red indicator will light, the service indicator
will flash, and the alarm buzzer will sound. Stop operation.
Run the engine at slow idle speed to lower the coolant
temperature.

Engine Oil Low Pressure Indicator (Red)

d
WARNING: If the engine is kept running with the
engine oil pressure low, damage to the engine may
result. Immediately stop machine operation and stop
the engine if the indicator lights.
If the engine oil pressure becomes low, the low engine oil
pressure indicator will light, the service indicator will flash, and
the alarm buzzer will sound.
Immediately move the machine to a safe area, set the machine
in the park position and stop the engine. Inspect the engine oil
pressure system and the oil level for any abnormality.
f
NOTE: Cold oil temperature or operating on a steep slope
may also cause the indicator to light.

Aftertreatment Device Warning Indicator

Aftertreatment Device Regeneration Request (Blinking
Yellow)
Aftertreatment device regeneration is needed. Set the
machine in a regeneration condition, turn the regeneration
switch to the manual regeneration position.
OPERATOR'S STATION
1-13
M4GB-01-020
M4GB-01-021
MNDF-01-036