JLG 340AJ Operator Manual - Manual (Page 40)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3-8 – JLG Lift – 3121258
Platform Station
(See Figure 3-3., Platform Control Console)
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/Torque Select
The machine has a three position switch - The forward
position gives maximum drive speed by allowing the
drive pump to go to maximum displacement and the
engine to go to maximum RPM when the drive controller
is moved. The back position gives maximum torque for
rough terrain and climbing grades by reducing the drive
pump displacement and keeping the engine at high
RPM, when the drive controller is moved. The center
position allows the machine to be driven as quietly as
possible by leaving the engine at mid engine, and the
drive pump at a reduced displacement.
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.
2. 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.
3. Horn
A push-type HORN switch supplies electrical power to
an audible warning device when pressed.
4. 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.