JLG X500AJ Operator Manual - Manual (Page 96)

SECTION 5 - EMERGENCY PROCEDURES
5-8 – JLG Lift – 3121636
NEVER WORK UNDER AN ELEVATED PLATFORM UNTIL PLATFORM HAS
BEEN SAFELY RESTRAINED FROM ANY MOVEMENT BY BLOCKING OR
OVERHEAD SLING.
NEVER REACH THROUGH, UNDER, OR OVER THE BOOM'S PATH OF
TRAVEL TO THE GROUND CONTROL PANEL. IF NO ASSISTANT IS AVAIL-
ABLE, PROCEED WITH THE FOLLOWING STEPS.
TO AVOID CONTACT BETWEEN THE JIB AND OUTRIGERS, DO NOT ATTEMPT TO
MANUAL SWING WITH THE BOOMS AND JIB FULLY LOWERED.
1. Open the cover on the Ground Control Station (see
Figure 5-2. on page 5-5), located on the hydraulic
tank side of the machine.
At the ground control valve distributor perform the fol-
lowing steps as required;
2. If not already aligned, first swing the turntable
inline with the chassis so that the turntable and
base indicator arrows are aligned.
NOTE: This will eliminate the possibility of an elevated or
extended boom being positioned overhead of person-
nel at the pump and eliminate the risk of lowering the
jib onto an outrigger.
a. Depress the enable valve button (item 12 - Figure 5-
2. on page 5-5).
b. Activate the swing control lever (item 11 -
Figure 5-2. on page 5-5), in the desired direction of
travel while pumping the hand pump until the
turntable is aligned with the chassis.
c. Activating the lever up while pumping will swing
the platform to the clockwise.
d. Activating the lever down while pumping will
swing the platform to the counterclockwise.
NOTE: All of the following functions require the enable but-
ton (item 12 - Figure 5-2. on page 5-5) to be depressed
while pumping the hydraulic hand pump and operat-
ing the function lever.
3. Retracting the main boom (if necessary).
With the aid of an assistant, while pumping the
hand pump, activate the telescope function lever
(Item 8, Figure 5-2. on page 5-5) at the ground con-
trols, to retract the main boom.
4. Lowering the jib (if necessary).
While pumping the hand pump, activate the jib lift
function lever (item 7, Figure 5-2. on page 5-5) in the
appropriate direction to lower the jib.