Sliding Cab - Sliding stroke distance: 1 300 mm
The sliding cab, on this telescopic arm excavator, projects forward, 960 mm more over a Hitachi standard model. This speciality design gives the operator better downward visibility from the operator seat, boosting efficiency with confidence. The cab can still slide a further 1 300 mm, totaling 2 260 mm, to give unobstructed view. To enhance safety, the cab can be locked in position with a switch, avoiding inadvertent movements. A walkway and handrail are provided for easy access to the cab
Large Cab-Floor Window
A large integral cabfloor window, made of polycarbonate, offers good downward see-through visibility to deep excavation underground. This makes it easier to position and excavate using the telescopic arm, boosting job efficiency and safety
Reduced Cab Vibration for Operator Comfort
Less cab vibration helps improve operator comfort. The cab sliding mechanism is redesigned from roller type to slide-plate type to increase contact areas for less vibration and shocks
Array of Safety Devices
To enhance safety, the machine is provided with an array of safety devices, including warning lights and safety alarm. Even if one of the twin ropes breaks or extends excessively, warning lights turn on and a safety alarm sounds to alert the operator to such a failure. The bucket landing alarm device also buzzers when the bucket lands at a target point for alerting
Arm Cylinder Stroke End Limit Device
At the cylinder stroke end, a limit device works to absorb shocks when loading a dump truck for safe, smooth operation
Twin-Rope Lines
The twin-rope lines are adopted for safety. Even if one of the twin ropes breaks, the other can hold the telescopic arm in position. To evenly distribute the load to twin roles in normal operation, an equalizer is provided to extend rope life.
Free-Fall Prevention Devices
Holding Valve: Even if piping or hose punctures, a combination of the telescopic arm cylinder and a holding valve on the boom cylinder can hold the clamshell to avoid its free fall.
Free-Fall Prevention Device: The clamshell is operated by twin-rope lines for its pull-up operations. Even if one of twin ropes breaks, the other can hold the clamshell to avoid its free fall
Miscellaneous Safety Accessories
- Bucket jolt-reducing device
- Bucket landing alarm device
- Leveler
- Operation warning lights
- Operator guard against falling prevention
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