JLG M400 Operator Manual - Manual (Page 39)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3121215 – JLG Lift – 3-9
6. Lights (If Equipped)
This switch operates control console panel lights and
head lights if the machine is so equipped.
7. Drive/Steer
The DRIVE controller provides for driving either forward
or backward when positioned to FORWARD or
REVERSE. The controller is ‘ramped’ to allow infinitely
variable drive speed between fast and slow.
Positioning the steer control thumb operated switch
RIGHT or LEFT enables steering the machine to the
right or left respectively.
NOTE: When lower boom is raised above horizontal, or the upper
boom is raised approximately 16 inches (40.64 cm) above
boom rest, the high drive function will automatically
switch to low drive. This also occurs when Function
Speed Control is clicked on creep.
NOTE: DRIVE control lever is spring-loaded and will automati-
cally return to neutral (OFF) position when released.
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.
8. Telescope Control
The TELESCOPE control switch affords extension and
retraction of the main boom when positioned to IN or
OUT.
9. Jib (If Equipped)
Push forward to lift up, pull back to lift down. Variable lift
speed is using the Function Speed Control.
10. Jib Swing
Push toggle switch right to swing right, push left to
swing left.
11. Lower Boom Lift
Provides for raising and lowering of Lower and Mid
Boom when positioned to UP or DOWN. Upper lift will
not function when operating lower lift.