JLG 510AJ Series II Operator Manual - Manual (Page 40)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-8 – JLG Lift – 3121292
Platform Control Station
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINE IF ANY CON-
TROL LEVERS OR TOGGLE SWITCHES CONTROLLING PLATFORM
MOVEMENT DO NOT RETURN TO THE OFF OR NEUTRAL POSITION
WHEN RELEASED.
1. Drive Speed Switch
(4WD Machines) - The forward
position gives maximum drive
speed by shifting the drive
motors to minimum displace-
ment and giving high engine
when drive controller is moved.
The back position gives maximum torque for rough ter-
rain and climbing grades by shifting the wheel motors to
maximum displacement and giving high engine speed
when drive controller is moved. The center position
allows the machine to be driven as quietly as possible
by leaving the engine at mid speed and the drive motors
in maximum displacement.
(2WD Machines) - The forward position selects maxi-
mum speed by operating at high engine rpm. The back-
ward position selects mid engine rpm.
ONLY USE THE PLATFORM LEVELING FUNCTION FOR SLIGHT LEVEL-
ING 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.
2. Platform Leveling
A three position switch allows the operator
to adjust the automatic self leveling system.
This switch is used to adjust the platform
level in situations such as ascending/descending a
grade.
3. Horn
A push-type Horn switch supplies electrical
power to an audible warning device when pressed.
4. Power/Emergency Stop
A two-position red mushroom shaped
switch furnishes power to PLATFORM Con-
trols when pulled out (on). When pushed in
(off), power is shut off to the platform functions.