JLG 1500SJ Service Manual - Manual (Page 255)

SECTION 4 - BOOM & PLATFORM
3121262 – JLG Lift – 4-9
Use the Left or Right arrow key until you see:
Press ENTER , the screen should read:
Using the Up and Down arrow keys will allow
the following modes:
• OFF
• EXTEND
• RETRACT
Once the desired mode is selected, stepping into the foot-
switch with the machine running will perform extension or
retraction of the jib lock pin. Reset or turning it off is
achieved by escaping out of the service mode, by cycling
power to the machine, or re-entering the service mode
and manually turning it off. When the service mode is
used to retract the jib lock pin for servicing, attempts to lift
or telescope out of transport will result in a JIB
UNLOCKED OUT OF TRANSPORT – HYDRAULICS SUS-
PENDED fault and the boom will be trapped into transport.
Jib Swing Deploy Sequence (Jib Pin Lock)
If the machine is in the stowed state and the operator
attempts to swing the jib left, the control system will first
check the position of the jib telescope. If the jib is in the
transport position, the control system will unlock the jib
lock pin and jib swing left until the jib is in line with the
main boom (determined by the jib swing angle sensor). If
the jib is in line the control system will attempt to lock the
jib lock pin. If the attempt fails, the control system will
allow the operator to jib swing right or left.
Jib Lock Pin Lamp Operation
On machine power-up the control system will energize the
lamp based on the current state of the jib lock pin as
determined by the jib lock proximity sensor. While
attempting to stow or deploy the jib, the control system
shall flash the jib lock pin lamp while the operator is acti-
vating the jib swing function switch. If the jib lock pin is in
the locked position the lamp will be energized. If the jib
lock pin is in the unlocked position the lamp will be de-
energized. If the jib lock pin is in a fault state (i.e. the jib is
deployed and the jib lock pin is unlocked) or the jib is in
the stowed state and the jib lock pin is in the locked state,
attempts of disallowed functions results in the jib lock pin
lamp being flashed.
NOTE: Attempts to move the boom out of transport when
the pin is unlocked will be disallowed and a fault
code will be registered.