The enable system prevents unintentional movements of the MEWP. If the operator releases the enable switch, all machine operations stop. Examples of JLG MEWP enable systems include:
Foot Switch
•The footswitch on a JLG MEWP must be depressed and held down before any function is allowed •JLG foot switches have a 7-second timer
-Once the footswitch is depressed, the operator has seven seconds to operate a function before the enable system times out
-If no function is selected the footswitch must be released and then depressed again before selecting a new function
Trigger Switch
•The trigger switch on a JLG MEWP must be pulled in and held before any function is allowed
•JLG trigger switches have a 3-second timer
–Once the trigger switch is squeezed, the operator has three seconds to operate a function before the enable system times out
–If no function is selected the trigger switch must be released and then depressed again before selecting a new function
Function Enable Button
•The Function Enable button must be pushed in and held in to allow a function to operate
– Hold the enable button while selecting another function
Emergency Stop Switch
Boom Lift Proportional Controls
•Both the Lift/Swing and Drive/Steer controllers on the Boom Lift platform control box are proportional controls with the exception of the steer switch
•Steering is not proportional
Scissor Lift Proportional Controls
•The Drive/Lift controller on the JLG Scissor Lift platform control box is a proportional control with the exception of the steer switch
•Steering is not proportional