JLG 500RTS ANSI Operator Manual - Manual (Page 29)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3120695 – JLG Sizzor – 3-3
1. Ignition/Emergency Stop - A two-position, red
mushroom shaped switch supplies electrical power
to the Start button when positioned up. When posi-
tioned down, the switch shuts off electrical power to
the ignition circuit, acting as an emergency stop
switch.With the MAIN POWER switch in the OFF
position, the key can be removed in order to inca-
pacitate the machine on the jobsite to avoid unau-
thorized use of the machine.
2. Power Selector Switch - A three position key-oper-
ated power selector switch supplies operating
power to the platform or ground controls, as
selected. When positioned to platform, the switch
provides power to the platform controls. When posi-
tioned to ground, the switch provides power to the
ground controls. With the power selector switch in
the center off position, power is shut off to both plat-
form and ground controls.
NOTE: With the PLATFORM/GROUND SELECT switch
positioned to GROUND, engine speed will stay in
LOW at all times.
3. Start Button - A momentary contact, pushbutton-
type switch that supplies electrical power to the
starter solenoid when the IGNITION/EMERGENCY
STOP switch is in the ON position and the START
button is depressed.
4. Lift Switch - A three position, momentary contact lift
control switch provides raising and lowering of the
platform when positioned to UP or down.
5. High Engine Circuit Breaker (Diesel Engine) - A
push button reset 3 Amp circuit breaker located on
ground control panel returns interrupted power to
diesel engine throttle when depressed.
6. Start Button - A momentary contact, push-button
type switch supplies electrical power to the starter
solenoid when the IGNITION switch is positioned up
and the START button is depressed.
7. Choke Switch (If Equipped) - A momentary con-
tact, push-button type switch supplies power to the
choke solenoid, when depressed, to assist cold start
operation.
8. Platform Traversing Switch (If Equipped) - A dou-
ble throw, momentary contact toggle-type platform
traversing switch permits the operator to hydrauli-
cally extend and retract the platform extension as
needed for “up and over” work access.
9. Platform Traversing Select Switch (If Equipped) -
A full throw, momentary contact toggle-type plat-
form traversing select switch that works simulta-
neously with the platform traversing switch to
permits the operator to hydraulically extend and
retract the rear platform extension as needed for “up
and over” work access.
10. Gasoline/LPG Select Switch (Duel Fuel Only) - A
three position toggle-type switch is used to select
the desired method of powering the unit. Placing the
switch in the gasoline position shuts off the fuel flow
from the lp gas supply tank and allows fuel flow from
the gasoline tank. Moving the switch to the lpg posi-
tion shuts off fuel flow from the gasoline tank and
allows lp gas from supply tank to be used to power
the unit. With the switch in the center position, fuel
flow is restricted from both supply tanks.
11. Hourmeter - The hourmeter records engine or elec-
tric motor operating time.
12. Voltmeter - With the emergency stop switch in the
up position, and before starting the engine, the volt-
meter indicates output voltage of the alternator. Nor-
mal reading for the voltmeter will be 12-14 volts with
a properly charged or charging battery.
13. Water Temperature Gauge - The water temperature
gauge provides a visual display of the engine cool-
ant temperature.
14. Oil Pressure Gauge - The oil pressure gauge dis-
plays the engine lubrication system operating pres-
sure.
Platform Control Station
1. Enable Switch - These machines are equipped with
an enable switch on the side of the platform control
console. On machines built with a serial number
before 0200058922, the enable switch must be
pressed before activating the drive, lift or steer func-
tions. A built-in timer shuts off power to these func-
tions if they are not activated within 3 seconds after
the enable switch is depressed. In addition, this
timer will shut off power to the drive and lift functions
3 seconds after they are deactivated, making if nec-
essary to depress the enable switch before activat-
ing drive and lift again. The steer function, unless
activated in conjunction with the drive or lift func-
tions, will automatically cut off after 3 seconds of
operation. On machines built from, and including,
serial number 0200058922, the enable switch must
be depressed and held for the duration of lift. The
enable switch works in conjunction with the lift
switch only.
2. Ignition/Emergency Stop Switch - An ignition/
emergency stop red mushroom-type switch is pro-
vided in order to turn on machine power in the plat-
form and also to turn off machine power in the event
of an emergency. Power is turned on by positioning
the switch to the up (on) position, and is turned off
by positioning the switch to the down (off) position.