Manitowoc Published 05-26-17, Control # 238-02 2-33
MLC165-1 SERVICE/MAINTENANCE MANUAL HYDRAULIC SYSTEM
Pressure Transducer Test
The pressure transducer test calculates the zero-pressure
output level for each pressure transducer. It is only
necessary to perform this procedure at the specified
intervals or when necessary during troubleshooting.
Perform this test whenever:
• A new pressure transducer is installed.
• A new universal node that monitors pressure
transducers is installed.
• A new master node or master node software is installed.
• Pressure readings are in error.
NOTE Be aware that if there is any residual pressure in
the system during the calibration process, the
display pressure reading in the cab may not reflect
actual system pressure
To test the pressure transducers:
1. Stop engine and turn ignition switch to the run position.
2. At the display, navigate to test screen 1 or 2 and run the
pressure transducer test (Figure 2-30
).
3. When the pressure transducer test completes, verify no
pressure transducer icons are highlighted in yellow in
either test screen. If any pressure transducer icons
appear in yellow, troubleshoot the corresponding
transducers to determine the fault cause.
NOTE The cause of a failed pressure transducer test or
faulty display pressure reading may not be the
pressure transducer. The cause of the fault could
be trapped air or hydraulic pressure in the system
during the pressure transducer test.
Figure 2-30. Test Screen 1
Figure 2-31. Test Screen 2
M100858
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