JLG 1850SJ Operator Manual - Manual (Page 56)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-12 – JLG Lift – 3121618
7. Boom Control Select
Automatic Mode:
When the Boom Control is positioned to Auto-
matic, lift and telescope movements are coordi-
nated by the JLG control system and the
automatic platform leveling feature is active
during lift, telescope, swing, and drive movements.
NOTE: • While operating lift up, the boom may also telescope out.
• While operating lift down, the boom may also telescope in.
• While operating swing or drive, the boom may lift up or lift
down.
• While operating telescope in, the boom may lift down when at
high boom angles and the creep light is flashing.
Manual Mode:
When the boom control is positioned to Man-
ual, lift and telescope movements are con-
trolled separately by the operator and the
automatic platform leveling feature is active
only during lift functions.
NOTE: When positioned to Manual, boom functions will be stopped
when the envelope limits are reached. When this occurs, operate
a different function or select the automatic position.
NOTE: Depending upon the angle of the chassis and the angle of the
boom, swing left or swing right may be disallowed while in the
Manual mode. The BCS light will illuminate and further attempts
to swing in the disallowed direction will cause the BCS to flash.
When this occurs the only choices are to swing in the opposite
direction or switch to automatic mode.
8. Power/Emergency Stop
A two-position red mushroom shaped switch
supplies power to Platform Controls when
pulled out (on). When pushed in (off ), power is
shut off to the platform controls.