Engine Operation; Platform/Ground Select Switch; Speed Switch - JLG 4394RT Operation And Safety Manual

SECTION 3 - MACHINE CONTROLS, INDICATORS AND OPERATION
IF TILT ALARM IS ON WHEN PLATFORM IS RAISED, LOWER PLATFORM COM-
PLETELY, THEN REPOSITION MACHINE SO THAT IT IS LEVEL BEFORE RAISING
PLATFORM.
6. System Fault Indicator - This warning light will flash
the appropriate distress code (flash code).
7. Leveling Jacks Fully Retracted - This indicator light
will illuminate when the leveling jacks are fully
retracted.
8. Leveling Jacks Operational - This indicator light will
illuminate when the leveling jacks are being operated.
9. Leveling Jacks Set - This indicator light will illuminate
when the leveling jacks are set.
10. Tilt Alarm Warning Horn (Not Shown) - The Tilt
Alarm Warning Horn is activated when the chassis is
on a slope greater than the allowable amount.
DO NOT OPERATE MACHINE IF HIGH DRIVE SPEED OPERATES WHEN PLAT-
FORM IS RAISED ABOVE THE STOWED POSITION.
3-14
3.6

ENGINE OPERATION

Platform/Ground Select Switch

The power selector switch functions to direct electrical
power to the desired control station. With the switch in the
ground position, power is supplied to the emergency stop
switch at the ground control station. When the switch is in
the platform position, power is supplied to the emergency
stop switch at the platform control station. The switch
should be in the off position when parking the machine
overnight.
Emergency Stop Switch
This switch, when in the on position (pulled out), provides
electrical power to the ground controls or platform con-
trols, as applicable. In addition, the switch can be used to
turn off power (depressed) to the function controls in the
event of an emergency.

Speed Switch

There is a three position speed switch at the platform control
station. For high speed (Rabbit), Mid Speed (White Line) and
Low Speed (Turtle). All three speeds will work with the drive
function. The high speed select will not operate the lift func-
tion.
– JLG Lift – 3121641