JLG 3246ES Service Manual - Manual (Page 131)

SECTION 5 - JLG CONTROL SYSTEM
3121166 – JLG Lift – 5-11
2 2 FUNCTION PROBLEM -- DRIVE & LIFT ACTIVE TOGETHER
The Drive - Lift selector switch indicates that both functions are
selected simultaneously.
In Platform Mode, the Drive and Lift Digital Inputs are Ener-
gized at the same time. Retained until either is momentarily
De-energized.
Drive, Steer, & Lift Prevented
Repair the wiring or switch to
clear the message.
2 2
FUNCTION PROBLEM -- STEER LEFT PERMANENTLY
SELECTED
Steer left switch in the platform control box was closed during
power-up.
In Platform Mode, the Left Steer Digital Input Switch is Ener-
gized AND Power-up is Active. Retained until Digital Input is
momentarily De-energized.
Steer & Drive Prevented
Release or repair the switch to
clear the message.
2 2
FUNCTION PROBLEM – STEER RIGHT PERMANENTLY
SELECTED
Steer right switch in the platform control box was closed dur-
ing power-up.
In Platform Mode, the Right Steer Digital Input Switch is Ener-
gized and Power-up is Active. Retained until Digital Input is
momentarily De-energized.
Steer & Drive Prevented.
Release or repair the switch to
clear the message.
2 2 ACCELERATOR FAULTY – WIPER OUT OF RANGE
The joystick (accelerator) wiper signal input is outside the
acceptable voltage range.
In Platform Mode, the Joystick (accelerator) Analog Input
Switch is > 4.50V OR < 0.50V. Retained until Analog Input is
measured within proper range.
Drive, Steer, & Lift Prevented.
The wiper wire being off, the
wiper wire shorted to +B, or the
wiper wire shorted to –B
(ground) could cause this diffi-
culty.
2 2
ACCELERATOR FAULTY – STEER SWITCHES ACTIVE
TOGETHER
Both the steer left and steer right inputs are closed as the same
time.
In Platform Mode, the Steer Left Digital Input is Energized and
the Steer Right Digital Input is Energized. Retained until either
Digital Input is momentarily De-energized.
Drive & Steer Prevented.
A short in the steer switch wir-
ing or a failed steer switch can
cause this difficulty.
2 2 FUNCTION LOCKED OUT – ACCELERATOR NOT CENTERED
Selected function (drive or lift) is not allowed because the joy-
stick (accelerator) was not centered at power-up.
In Platform Mode, scaled Joystick (accelerator) position was
something other than 0% AND Power-up was Active. Retained
until the Joystick is momentarily centered.
Drive, Steer, & Lift Prevented.
Return joystick to center
momentarily and re-initiate.
2 2
FUNCTION PROBLEM – TRIGGER PERMANENTLY CLOSED
Trigger switch in the platform control box was closed at power-
up.
In Platform Mode, the Trigger Digital Input was Energized AND
Power-up was Active. Retained until the Trigger Digital Input is
momentarily De-energized.
Drive, Steer, & Lift Prevented.
Release switch or repair the
switch / wiring to clear the diffi-
culty.
2 2 TRIGGER CLOSED TOO LONG WHILE IN NEUTRAL
Trigger switch in the platform control box was closed for more
than ten seconds while the joystick (accelerator) was in the
neutral position (centered).
In Platform Mode, the Trigger Digital Input was Energized for
10,000mS AND Drive was In-Active AND Lift was In-Active.
Retained until the Trigger Digital Input is momentarily De-
energized.
Drive, Steer, & Lift Prevented.
Release switch or repair the
switch / wiring to clear the diffi-
culty.
Table 5-2. Flash Code Listing
Flash
Code
Help Message Cause Possible Resolve