Ride Control Switch; Auto; Off - Hitachi ZW 120-6 Operator's Manual

Ride Control Switch

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WARNING:
 To ensure safety, operate the ride control switch only
after parking the machine with the bucket lowered
to the ground.
 When operating the machine with the front
attachment in the float position (scooping, grading,
or snow removal), always turn the ride control switch
OFF. Failure to do so may allow the front attachment
to unexpectedly move up or down when the ride
control system is activated.
 When operating the machine with the ride control
ON, reduce the machine speed. Ride control
accumulator will carry high pressure if sudden
impact load is applied on the working equipment,
causing gas leakage.
The ride control switch damps the vertical vibration of the
front attachment during drive operation so that comfortable
machine ride quality is obtained. As stable drive operation is
achieved, bucket load spill can be prevented.

AUTO

When ride control switch (1) is turned to AUTO, the drive
speed sensor and the controller are activated. Then, when
the drive speed becomes faster than the preset travel speed,
the ride control system automatically operates.
When ride control switch (1) is turned to AUTO mode, ride
control indicator (2) on the monitor display comes ON.

OFF

When ride control switch (1) is turned OFF, ride control
indicator (2) on the monitor display goes OFF and the ride
control system becomes inoperable.
OPERATOR'S STATION
1-64
1
1
AUTO
OFF
2
MNDB-01-005
MNEC-01-022
MPTC-01-019