JLG X390AJ Operator Manual - Manual (Page 91)

SECTION 5 - EMERGENCY PROCEDURES
3128792 – JLG Lift – 5-13
9. Remove (if necessary) the valve tool(s), unscrew the
proportional flow valve black knobs and reinstall any
valve solenoid retaining thumbscrews.
10. Remove the manual pump handle from the pump and
secure it in its original position.
11. Replace any access panels that were previously
removed.
5.4 SAFETY DEVICES BYPASS KEY USE
THIS FEATURE MUST ONLY BE USED AS DESCRIBED BELOW. THE
MACHINE COULD TIP OVER IF THESE DIRECTIONS ARE NOT FOL-
LOWED.
The machine has a key for bypassing the platform safety
systems. The key used to activate the safety device bypass
switch (item 2 - photo), is fastened to the cover attach screw
mounting tab from the factory (item 1 - photo), on the left
side of the electrical components compartment.
Remove the key and insert it into the bypass
key switch (item 2 - photo). After using the
safety device bypass, a qualified JLG mechanic
must be contacted to determine the reason for
needing to use this feature. Return the key to the where you
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