Help Fault Codes, Displayed Faults, And Descriptions - JLG 600A Service And Maintenance Manual

SECTION 6 - JLG CONTROL SYSTEM
Fault Flash Communicated (Displayed on
Code Analyzer) Fault
None
EVERYTHING OK
GROUND MODE OK
FSW OPEN
RUNNING AT CREEP –
CREEP SWITCH OPEN
RUNNING AT CREEP – TILTED
AND ABOVE ELEVATION
RUNNING AT CUTBACK –
ABOVE ELEVATION
TILT SENSOR OUT OF RANGE The tilt sensor has indicated a tilt angle greater than 19 degrees for more
LOAD SENSOR READING
UNDER WEIGHT
1/1
2/1
FSW FAULTY
KEYSWITCH FAULTY
2/2
DRIVE LOCKED – JOYSTICK
MOVED BEFORE FOOT-
SWITCH
FSW INTERLOCK TRIPPED
STEER LOCKED – SELECTED
BEFORE FOOTSWITCH
STEER SWITCHES FAULTY
DRIVE / STEER WITH NO
QPROX
D/S JOY. QPROX BAD
D/S JOY. OUT OF RANGE LOW Resistive joysticks: These faults do not occur.
6-20
Table 6-2. Help Fault Codes, Displayed Faults, and Descriptions
No flash code is indicated for the following help messages. They are
intended to hint at a possible problem if the vehicle is not behaving as
expected.
The "normal" help message in platform mode
The "normal" help message in ground mode
A drive or boom function has been selected but footswitch is open.
All function speeds are limited to creep because the creep switch is open.
All boom function speeds are limited to creep because the vehicle is tilted
and above elevation.
Drive speed is limited to "ELEVATED MAX" because the vehicle is above
elevation.
than 4 seconds. Not reported during 2 second power-up.
The load sensor is reading 20% or more under the calibrated zero point.
This fault may occur if the basket is resting on the ground. Not reported
during 2 second power-up.
Flash code 1/1 indicates a "sleep" mode.
NOT REQUIRED
Flash code 2/1 indicates problems with footswitch.
The two footswitch inputs have read the same state for more than one sec-
ond.
Both platform and ground modes are selected simultaneously
Flash code 2/2 indicates problems with drive & steer selection. Except
where noted, these faults are not reported during 2 second power-up
sequence.
Drive was selected before and during footswitch closure. Can be reported
during power-up sequence.
Footswitch was closed for seven seconds with no function selected. Can
be reported during power-up sequence.
Steer was selected before and during footswitch closure.
Both steer switches are active together.
This fault only occurs with inductive joysticks. It occurs if the joystick is
moved out of the neutral position with no Qprox sensors active.
These faults only occur with inductive joysticks. They indicate that the Q-
Prox sensor is reading above 3.18 volts.
Inductive joysticks: The trigger points for these faults are dependent on the
centertap voltage reading. These faults will be triggered when the voltage
is less than the centertap voltage minus half the center tap voltage minus
0.3 volts. If the centertap is at the high end of the range, these faults will be
triggered below 1.05 volts. If the centertap is at the low end of the range,
these faults will be triggered below 0.79 volts.
Description
– JLG Lift –
Priority
1
2
3
3121201