JLG 600A_AJ Operator Manual - Manual (Page 40)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-4 – JLG Lift – 3121204
5. Engine Start/Auxiliary Power Switch
or
Engine Start/ Auxiliary Power Switch /Function Enable.
To start the engine, the switch must be held "UP"
until the engine starts.
To use auxiliary power, the switch must be held
“DOWN” for duration of auxiliary pump use. Aux
power can only be used if the engine is not run-
ning.
If equipped, the enable switch must be held
"DOWN" to enable all boom controls when the
engine is running.
6. Tower Telescope
This switch provides raising and lowering of the tower
boom. This function works only when the tower boom is
fully elevated (lift up).
TO AVOID UPSET AND SERIOUS INJURY, DO NOT OPERATE MACHINE IF
TOWER LIFT AND TELESCOPE FUNCTIONS DO NOT OPERATE IN THE
ABOVE SEQUENCE.
7. Hourmeter
Registers the amount of time the machine has been in
use, with engine running. By connecting into the oil
pressure circuit of the engine, only engine run hours are
recorded. The hourmeter registers up to 9,999.9 hours
and cannot be reset.
8. Platform/Ground Select Switch
A three position, center off, key activated PLATFORM/
GROUND SELECT switch supplies power to the plat-
form control console when positioned to PLATFORM.
With the switch in GROUND position, power is shut off to
the platform control console, and only the controls on
the ground control panel are operable.
NOTE: With the Platform/Ground Select Switch in the center posi-
tion, power is shut off to controls at both operating sta-
tions.
9. Swing Control
Provides 360 degrees continuous turntable rotation.
NOTE: Main Lift, Tower Lift, Swing, Platform Level, Main Tele-
scope, Tower Telescope, Platform Rotator and Auxiliary
Power control switches are spring-loaded and will auto-
matically return to neutral (off) when released.