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SJ30AJE, SJ30ARJE 196274AF
Load Sensing System Section 5 – Procedures
5.3 Load Sensing System
The Skyjack boom platform overload sensing system is based on load cell or electronic scale technology. The
deck steel structure is isolated from the MEWP. The load cell is permanently bolted between the deck and the
rotary actuator mount. The load cell will only respond to the vertical component of the load in the platform. There
are four external bolted connections that serve as a redundant back up system for the load cell connection. The
system is first calibrated with an empty platform to set the tare weight to zero. The following steps of the process
set the overload limit as regulated by applicable safety standards for Mobile Elevated Work Platforms.
Load Cell
LED Display
Error LED
Alarm LED
Interface Connector
Zero/Tare LED
Power LED
“T” Label
“4” Button
“Teach in” Handset
(Service only)
Platform Control Console
Indicator Module
Overload Light
Bottom View of Deck
MEWP
(Rotary Actuator Mount)
External Bolts
Load Cell
Permanent Bolts
Deck
Error LED - Continously on when there is a system error.
Alarm LED - Continously on when the platform is overload or has base contact.
Interface Connector - Storage of limit valve (“Teach in” handset connects here).
Orange LED - Continously on when the tare value is zero ± 15kg.
Green LED - Flashes slowly on when the system is powered and calibrated.
NOTE
When the power is turned on and after a four second time period elapses, the overload light and audible alarm
pulses two times. This indicates the system is active and there are no faults.
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