JLG 660SJ Operator Manual - Manual (Page 46)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-12 – JLG Lift – 3121297
ONLY USE THE PLATFORM LEVELING OVERRIDE FUNCTION FOR
SLIGHT LEVELING OF THE PLATFORM. INCORRECT USE COULD CAUSE
THE LOAD/OCCUPANTS TO SHIFT OR FALL. FAILURE TO DO SO COULD
RESULT IN DEATH OR SERIOUS INJURY.
3. Platform Leveling Override
A three position switch allows the operator
to adjust the automatic self leveling system.
This switch is used to adjust platform level
in situations such as ascending/descending a grade.
4. Horn
A push-type Horn switch supplies electrical
power to an audible warning device when pressed.
5. Power/Emergency Stop Switch
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.
6. Start/Auxiliary Power
When pushed forward, the switch ener-
gizes the starter motor to start the engine.
The Auxiliary Power control switch ener-
gizes the electrically operated hydraulic
pump. (Switch must be held on for duration
of auxiliary pump use.)
The auxiliary pump functions to provide sufficient oil flow
to operate the basic machine functions should the main
pump or engine fail. The auxiliary pump will operate
main boom lift, main telescope and swing.
7. Fuel Select (Dual Fuel Engine Only) (If
Equipped)
Gasoline or liquid propane fuel may be
selected by moving the switch to the appropriate posi-
tion. It is unnecessary to purge the fuel system before
switching fuels, so there is no waiting period when
switching fuels while the engine is running.