Auto Brake - Hitachi ZW 370-6 Operator's Manual

Wheel loader
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Auto Brake

Auto brake applies the service brakes and turns on the
warning buzzer when the machine speed exceeds the preset
limit. The auto brake indicator appears on the monitor panel
(refer to page 1-26.)
This feature protects the transmission from excessive speed.
In case of the direction change, the warning buzzer does
not turn on, only the service brakes are applied and the auto
brake indicator appears.
Auto brake works under the following conditions.
 Over speed
If the machine runs above the following speeds forward or
reverse;
Shift Range
Forward
1
14.5 km/h (9.0 MPH)
2
17.0 km/h (10.6 MPH)
2L
13.5 km/h (8.4 MPH)
3
30.0 km/h (18.6 MPH)
3L
24.0 km/h (14.9 MPH)
4
39.0 km/h (24.2 MPH)
4L
39.0 km/h (24.2 MPH)
f
NOTE: When the machine speed reaches the specified
machine maximum speed at the 4th speed range, the engine
speed automatically reduces before the auto brake is applied
to keep within the safety speed limit.
Still the auto brake should operate if the machine speed
exceeds the speed mentioned above or higher at each speed
range.
 Direction change
When the direction is changed while running over the
following speed.
1st, 2nd range: 14.0 km/h (8.7 MPH).
3rd, 4th range: 7.0 km/h (4.3 MPH).
IMPORTANT: When auto brake applies, machine may
slow down suddenly. Be prepared. Wear seat belt.
MOVING THE MACHINE
Reverse
15.5 km/h (9.6 MPH)
18.5 km/h (11.5 MPH)
14.6 km/h (9.1 MPH)
32.5 km/h (20.2 MPH)
25.8 km/h (16.0 MPH)
- - -
- - -
4-20

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