SJ46AJ SJ51AJ SJ63AJ
December 2007 Page 15
It is the responsibility of the operator to read, completely understand and follow all
instructions and warnings contained in this operating manual and on the MEWP.
FAMILIARIZATION
2.2-7 Platform Load Sensing System
The platform load sensing system is a device that senses for an overload on the platform before the system disables
boom and drive functions. This system is active when MEWP is powered on.
When the platform is overloaded while in work mode (boom is raised greater than 15 degrees from horizontal or is
extended greater than 6 inches), the load sensing system will disable all normal functions and signal the operator
with an indicator light and an audible alarm.
When the platform is overloaded while in travel mode, the load sensing system will signal the operator with an
indicator light and an audible alarm but will not disable any normal functions.
The following table shows the progression of warnings, indicated to the operator, up to the point of overload.
Overload Status Chart
Weight Indicator Light Audible Alarm MEWP System
93% On Off Enabled
100% Flashing Off Enabled
≥ 100%
(Work Mode)
Flashing Pulsing Disabled
≥ 100%
(Travel Mode)
Flashing Pulsing Enabled
NOTE
If the platform is overloaded due to contact with an overhead obstruction, do one of the following:
• Remove the obstruction from the platform, then after a four-second delay normal functions can be resumed.
• Use the emergency power unit at the base control console to release the platform from the obstruction.
Section 2 - Familiarization Control Functions
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