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229042ABA SJ46 AJ+, SJ46 AJ, SJ51 AJ
Section 5 – Procedures Load Sensing System - CE & AS
5.3-3 Calibration of Load Sensing System (with “Teach In” Handset)
WARNING
Do not interrupt system power during this procedure.
Do not rest your hand or foot on the platform during this procedure.
1. Ensure MEWP is on firm level ground.
2. Fully
retract and lower boom.
3. Turn engine off.
4. Ensure both
emergency stops are pulled out and platform engine enable switch is in on position.
Result: Overload indicator light and audible alarm pulse two times.
5. Ensure platform is unloaded and is free from any surface contact.
6. Remove cap from load cell interface connector.
7. Connect “Teach in” handset to interface connector.
Result: The “T” label on handset will flash at a high frequency of 5Hz. If not, recheck that power is on and
handset is properly connected.
WARNING
Do not disconnect the handset at any point during the following steps until instructed.
8. On “Teach in” handset, depress “4” button for four seconds.
Result: The “T” label on handset will light on constantly and then flash at a lower frequency of 1.25 Hz.
9. Add a test load of 244 kg onto the center of platform.
10. Depress “4” button for four seconds.
Result: The “T” label on handset will go from flashing to constantly on.
11. Disconnect “Teach in” handset from interface connector.
12. Wait for four seconds and then add a test load exceeding 244 kg to test load sensing system.
Result: On platform control console, the overload light will flash and an audible alarm will pulse.
13. Remove test load from platform.
Result: Green power LED is flashing, orange LED is ON, red alarm LED is OFF, audible alarm is OFF and red
error LED is OFF.
14. Re-cap interface connector and place provided “calibrated” label over interface connector.
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