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SJ30AJE, SJ30ARJE 196274AF
Load Sensing System Section 5 – Procedures
5.3-2 Calibration of Load Sensing System (with “Teach In” Handset)
WARNING
Do not interrupt the system power or rest your hand or foot on the platform during this procedure.
1. Ensure the MEWP is on firm, level ground.
2. Fully retract and lower the boom .
3. Turn the keyswitch off .
4. Ensure both emergency stops are pulled out and platform engine enable switch is in the on position .
Result: The overload indicator light and audible alarm pulse two times.
5. Ensure the platform is unloaded and is free from any surface contact.
6. Remove the cap from the load cell interface connector.
7. Connect the “Teach in” handset to the interface connector.
Result: The “T” label on the handset will flash at a high frequency of 5Hz. If not, recheck that power is on and
the handset is properly connected.
WARNING
Do not disconnect the handset at any point of the following steps until instructed to do so.
8. On the “Teach in” handset, depress the “4” button for four seconds.
Result: The “T” label on the handset lights up constantly.
9. Add a test load of 244 kg (538 lb) onto the center of the platform.
10. Depress the “4” button for four seconds.
Result: The “T” label on the handset will go from flashing to constantly on.
11. Disconnect the “Teach in” handset from the interface connector.
12. Wait for four seconds and then add a test load exceeding 244 kg (538 lb) to test the load sensing system.
Result: On the platform control console, the overload light flashes and an audible alarm pulses.
13. Remove the test load from the platform.
Result: The green power LED flashes, the orange LED is ON, the red alarm LED is OFF, the audible alarm is
OFF, and the red error LED is OFF.
14. Re-cap the interface connector and place the provided “calibrated” label over the interface connector.
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