Telescopic masts
D
- Operating principle
2.6 -
CHASSIS TILT
For STAR 6 and STAR 6 P
If the machine is positioned on a slope exceeding the allowable tilt with the mast extended, the
tilt control unit alerts the operator.
Drive and elevation controls are cut if this situation lasts longer than 1 or 2 s (seconds).
To restore the drive function, only movements allowing the machine to be stowed are
permitted :
• Mast lowering.
If the machine descends a slope greater than 10 % (around 5 °) with the mast stowed, the
machine automatically defaults to slow speed.
For STAR 8 - STAR 10
If the machine is positioned on a slope exceeding authorized tilt, the tilt control unit alerts the
operator.
Drive and elevation controls are cut if this situation lasts longer than 1 or 2 s (seconds).
To restore the drive function, only movements allowing the machine to be stowed are
permitted :
• Mast lowering.
• Jib lowering.
• Turntable rotation.
2.7 -
MACHINE BRAKING
If electric power is cut off, the machine is braked automatically.
Performance levels can may be reduced in the following situations :
• Descending a bumpy ramp.
• Worn tyres.
• Damp or muddy ground conditions.
2.8 -
WHEEL MOTOR BRAKE RELEASE
Each time a drive command is activated, electric power releases the brakes.
2.9 -
ANTI-POTHOLE SAFETY SYSTEM
To reduce the risk of tip over, the machine is equipped with anti-tipping devices located under
the chassis . The presence of this device depends on the machine configuration
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