Name: Hirschmann qSCALE i2
Brand: Hirschmann
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Troubleshooting

qSCALE i2 Cranes (Tool Version 3.0.34) Service Manual / Issue B / 11-2017 / ac.

3.2.7 Pressure Sensing

The System measures the pressure of the boom lift cylinder for both rod and piston side. Both sensors

communicate on the CAN Bus.

3.2.7.1 Pressure Sensing Overview

The signal runs from the pressure sensor travels as digital information on the CAN Bus to the central

processing unit.

Note that the load displayed on the LMI is not a direct measurement when using pressure transducers;

rather, it is a calculated value. Ensure that the hydraulic system is functioning as intended and that

sensor values, mainly length and angle, are functioning correctly prior to troubleshooting the pressure

transducers.

3.2.7.2 Pressure Sensing Error – Flow Chart

Use the following flow chart to troubleshoot errors with pressure sensing.

Block Diagram

Flow Chart

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