JLG E45A_AJ Operator Manual - Manual (Page 36)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3-8 – JLG Lift – 3120883
4. Main Lift/Swing.
The dual axis joystick is provided for main lift and
swing. Push forward to lift up, pull backward to lift
down. Move right to swing right, move left to swing
left. Moving the joystick activates switches to pro-
vide the functions selected. Proportional control of
these functions can be attained by using the Func-
tion Speed knob.
NOTE: Main lift and swing functions may be selected in
combination. The handle features a round gate so
that maximum speed is reduced when multiple func-
tions are selected.
Lower lift will not function when operating upper lift.
5. Telescope Control.
The TELESCOPE control switch affords extension
and retraction of the main boom when positioned to
IN or OUT.
6. Drive/Steer.
The DRIVE controller provides for driving either for-
ward or backward when positioned to FORWARD or
REVERSE. The controller is ‘ramped’ to allow infi-
nitely 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 auto-
matically return to neutral (OFF) position when
released.
7. Posi-Track Control.
Activating the Posi-Track switch allows the operator
to engage positive traction for the time period pre-
set in the controller. Posi-traction occurs by chang-
ing the drive motors from a series to parallel
arrangement, causing available power to be distrib-
uted evenly between the two drive wheels. The con-
trol system may also engage the posi-track function
automatically.
8. Posi-Track Indicator.
This indicator lights to show that posi-traction is
operating.
9. Platform Leveling Override.
The PLATFORM LEVEL control switch allows the
operator to adjust the level or the platform by posi-
tioning the switch to UP or DOWN.
10. Articulating Jib Boom (If Equipped)
Push toggle switch forward to lift up, pull back to lift
down.
11. Platform Rotate.
The PLATFORM ROTATE control switch allows the
operator to rotate the basket to the left or right when
positioned to the desired direction.
12. Function Speed Control.
Adjusts speed of Boom and Swing Functions.
Rotate CCW for slower speed and CW for faster
speed. To adjust Drive, Swing, and Main Lift to
creep, turn knob fully CCW until it clicks.
13. Machine Out Of Level.
This red illuminator indicates that the chassis is on a
slope (over 3 degrees). If the boom is above hori-
zontal and the machine is on a 3 degree slope, an
alarm will sound and CREEP is automatically acti-
vated.
14. System Distress Indicator.
The system distress indicator lights to signify an
abnormal condition for the generator engine (high
oil temperature or low oil pressure) or, on all electric
machines, an electrical system fault.
The four likely causes of a system fault are:
a. The seven second enable time has been
allowed to lapse or a function was selected
before depressing the footswitch. The system
reads this condition as a fault, just as it would if
the footswitch were jammed in the depressed
position or a function switch were stuck in the on
position. Re-depress the footswitch to power the
controls and extinguish the light.
Updated 8-18-99