Machine Controls and Indicators
EC450AJ, EC520AJ
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Function Speed Control
This control affects the speed of telescope, tower lift and jib lift. Turning the
knob all the way counterclockwise until it clicks puts drive, main lift, and
swing into creep mode.
Note:
During platform rotation, a speed difference may not be noticeable to the operator.
Turning the knob all the way counterclockwise until it clicks puts the ma-
chine into Creep Mode. Creep Mode puts the functions listed above, as well
as Drive/Steer and Main Lift/ Swing functions into the slowest speed setting.
Note:
To operate the Main Boom Lift/Swing joystick, pull up on the locking ring below the handle.
Note:
The Main Boom Lift/Swing joystick is spring loaded and will automatically return to neutral
(Off) position when released.
Horn
A push-type Horn switch supplies electrical power to an audible warning de-
vice when pressed.
Jib Lift
Provides for raising and lowering of the jib.
Lights (If Equipped)
This switch operates the accessory lights package if the machine is so
equipped.
Main Lift / Swing Controller
Provides main lift and swing. Push forward to lift up, pull backward to boom
down. Move right to swing right, move left to swing left.
Maximum Speed / Reduced Speed
The machine has a two position switch — The forward position gives maxi-
mum drive speed. The back position gives maximum torque for rough terrain
and climbing grades.
Platform Level Override
A three position switch allows the operator to adjust the automatic self level-
ing system. This switch is used to adjust platform level in situations such as
ascending/descending a grade.
Platform Rotate
Provides rotation of the platform.
Power / Emergency Stop
A two-position red mushroom shaped switch furnishes power to Platform
Controls when pulled out (On). When pushed in (Off), power is shut off to
the platform functions.
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