JLG M450 Operator Manual - Manual (Page 38)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-4 – JLG Lift – 3121647
5. Telescope
Provides for extension and retraction of Upper
Boom when positioned to in or out.
6. Swing
The Swing control switch provides 360
degrees non-continuous turntable rotation.
To activate SWING, position switch to Left or
Right.
7. Function Enable
The enable switch must be held "Down" to
enable all boom controls when the engine is
running.
8. Circuit Breakers
The circuit breakers open (pop out) to indicate a short or
overload somewhere on the machine.
9. Power/Emergency Stop Switch
A two-position red mushroom shaped switch
furnishes power to Platform/Ground Select
switch when pulled out (on). When pushed in
(off ), power is shut off to the Platform/Ground Select switch.
10. Platform/Ground Select Switch
A three position, key operated switch
supplies power to the platform control
console when positioned to Platform.
With the switch key in the Ground posi-
tion, power is shut off to platform and
only ground controls are operable.
NOTE: With Platform/Ground Select switch in the center position,
power is shut off to controls at both operating stations.