JLG X500AJ Operator Manual - Manual (Page 92)

SECTION 5 - EMERGENCY PROCEDURES
5-4 – JLG Lift – 3121636
Using Emergency/Ground Controls from Ground
(See Figure 5-2.)
ENSURE BOOM IS NOT POSITIONED OVER THE OUTRIGGERS OR OVER-
HEAD OF PERSONNEL BEFORE LOWERING.
1. Be certain the emergency stop button (item 1) is in
the ON position by turning it clockwise.
2. Start the engine, if not already running.
3. At the Emergency/Ground Control box, turn the
key switch (item 2) all the way clockwise and hold.
4. Check that the green (machine stabilized) indicator
light (item 4) on the Emergency/Ground Control
box is on.
5. Operate the appropriate manual control lever
(item 5, 6, 7, or 8) next to it’s proportional valve
under the cover of the valve distributor. See decal
on valve distributor cover for boom component
and direction to operate lever for desired move-
ment.
6. When finished, release the key switch (item 2) back
to the neutral position.
7. Position (press) the emergency stop switch (item 1)
to the OFF position to shut machine down.