The length sensor measures boom extension via a potentiometer in the cable reel.
The angle sensor ensures the crane's boom is at the correct pitch for safe lifting.
: Measure the signal between Pin 2 (signal) and Pin 1 (ground). Use a voltmeter at test point MP4 on the main board. 2. Angle Sensor Adjustment
These sensors transform hydraulic pressure into electrical signals to calculate load.
: Fully retract the boom. Turn the potentiometer counter-clockwise until it stops to reset the "zero" point.
: Verify voltage at the sensor. Expected values are roughly 3.125V (0°) and 2.5V (45°) . 3. Pressure Transducer Maintenance
: Connect a voltmeter to the main board (Black to MP15 , Red to MP4/MP5 ). Adjust potentiometers P4 or P5 to reach exactly 0.500V (500mV) .
Below is a guide for the assembly and maintenance procedures typically associated with these technical standards. 🏗️ PAT/Hirschmann Crane System Guide