JLG 400CRT Operator Manual - Manual (Page 22)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3-2 – JLG Lift – 3121803
Capacities
Raising platform above horizontal with or without any load
in platform, is based on the following criteria:
1. Machine is positioned on a smooth, firm and level
surface.
2. Load is within manufacturer’s rated capacity.
3. All machine systems are functioning properly.
Stability
This machine, as originally manufactured by JLG and
operated within its rated capacity on a smooth, firm and
level supporting surface, provides a stable aerial platform
for all platform positions.
3.4 CONTROLS AND INDICATORS
Ground Control Station
DO NOT OPERATE FROM GROUND CONTROL STATION WITH
PERSONNEL IN THE PLATFORM EXCEPT IN AN EMERGENCY.
PERFORM AS MANY PRE-OPERATIONAL CHECKS AND INSPEC-
TIONS FROM THE GROUND CONTROL STATION AS POSSIBLE.
NOTE: When the machine is shut down for overnight park-
ing or battery charging, the emergency stop and
power select switches must be positioned to off to
prevent draining the batteries.
1. Power Select Switch - A three position, key-operated
power select switch supplies operating power to the
platform or ground controls, as selected. When posi-
tioned to platform, the switch provides power to the
emergency stop switch at the platform controls.
When positioned to ground, the switch provides
power to the ground control. the ground control
emergency stop switch provides power to the key
switch. With the power select switch in the center off
position, power is shut off to both platform and
ground controls and the key can be removed to dis-
able the machine.
NOTE:
With the Power Selector switch in the off or platform
position, the key can be removed in order to inca-
pacitate the machine on the jobsite to avoid unau-
thorized use of the machine.
When the platform is elevated, drive function oper-
ates in creep speed only.
2. Ignition/Emergency Stop Switch - A two-position,
red, mushroom-shaped ignition/emergency stop
switch, when positioned to ON with the power selec-
tor switch positioned to ground, furnishes operating
power to the ground control station. In addition, the
switch can be used to turn off power to the function
controls in the event of an emergency. Power is
turned on by pulling the switch out (on), and is
turned off by pushing the switch in (off).
3. Lift Switch - A three position, momentary contact Lift
control switch provides raising and lowering of the
platform when positioned to up or down.
4. Start Switch - A momentary contact, push button
type switch that supplies electrical power to the
starter solenoid when the emergency stop switch is
in the ON position and the start button is depressed.
5. Engine/Filter Distress Lights - These warning lights,
when illuminated, warn the operator of an engine or
hydraulic system fault condition. The specific fault
condition for each indicator (left to right) is as fol-
lows:
Alternator - Illuminates when the alternator output
drops below a pre-set level.
Oil Pressure - Illuminates when the engine oil pres-
sure drops below 0.5 bar (7 psi).
Charge Pressure - Illuminates when the charge pres-
sure drops below 4.8 bar (70 psi), indicating the
charge filter is clogged and needs to be replaced.
The indicator is also connected to a temperature
sensor to prevent false signals from being generated
when the hydraulic oil is below normal operating
temperature.