JLG 1500SJ Service Manual - Manual (Page 559)

SECTION 6 - JLG CONTROL SYSTEM
3121262 – JLG Lift – 6-107
Boom Control System Check Procedure
Perform the following check with no load (personnel or
material) in the platform from the ground control station.
1. With the boom fully retracted, raise the boom off the
boom rest to horizontal.
2. Position the jib horizontal, jib straight, and platform
level.
3. Extend the boom until it stops.
4. Boom must stop on colored stripe matching the
capacity indicator. If the boom does not stop on the
correct stripe, the system must be repaired by JLG
authorized Service Personnel before the machine
can be used.
5. Push and hold the gray Boom Control System Test
Button on the ground control panel. The lighting of
the green Boom Control System Calibrated indicator
indicates the system is functioning properly. No indi-
cator light or the lighting of the red Boom Control
System Warning indicator indicates the system must
be repaired by JLG authorized Service Personnel
before the machine can be used.