LeeBoy 8510E - Plus One Fault Codes; Plus One Troubleshooting

5-40 LeeBoy Model 8510E Conveyor Paver
Maintenance
Plus One Troubleshooting
The Plus One is a 50-pin controller that monitors paver
control systems and alerts the operator in the event of
a fault. The Plus One status light on the control panel
(Figure 5-52) illuminates red and blinks continuously
or blinks, then pauses, then blinks again according to
the blink code numbers listed in following Plus One Fault
Codes chart. For example, code 29 will show two blinks,
then a pause, then nine blinks.
Plus One Light
Figure 5-52. Plus One
When the key is turned on, the status light will illuminate
red for approximately three seconds while the Plus One
controller powers up, then turn off when the machine
is ready to start. The light will stay on and the Plus One
will not allow the engine to start if any joystick is out of
neutral or more than one Run/Stop switch is in the RUN
position.
If the machine is in neutral with the Run/Stop switch in
the RUN position, the Plus One will disable the control
box after a set period of time. This is a safety measure in
the event the operator leaves the station with the control
box still active and the joysticks accidentally moved.
The operator must then toggle the Run/Stop switch from
RUN to STOP and back to RUN again to regain control.
These faults will also prevent machine movement:
• Steering control box not detected.
• Joysticks not optimized.
• Pump control coil fault.
• Brake valve/pump neutral bypass coil fault.
• There is only one steering control box present.
• The fault happens in the steering control box that has
control (Run/Stop switch in the RUN position).
• The fault occurs when neither steering control box is
in control.
Plus One Fault Codes
Blink
Sequence
Fault / Corrective Action
Continuous
at Start-Up.
Joysticks not in neutral. Must be
placed in neutral at start-up.
Continuous
while
running.
Joysticks out of neutral. Return
joysticks on both control boxes to
neutral.
Continuous
while in
neutral.
Joysticks in neutral too long with Run/
Stop switch in RUN position. Toggle
Run/Stop switch from RUN to STOP,
then back to RUN.
Continuous
rapid blink.
Calibration Mode. Open control panel
and unplug the Optimize/Calibrate plug
from the Calibrate receptacle.
Continuous
slow blink.
Optimize Mode. Open control panel
and unplug the Optimize/Calibrate plug
from the Optimize receptacle.
21 Left steering control box not optimized.
22 or 27
Left joystick fault. Check wires to left
joystick.
23 or 28
Right joystick or steering. Check wires
to right joystick or steering wheel fault.
24
Right steering control box not
optimized.
25 or 37
Left joystick fault. Check wires to left
joystick.
26 or 38
Right joystick or steering wheel fault.
Check wires to right joystick or steering
wheel.
29
Controller has not received an updated
J1939 CAN message. Check J1939
connection and ECM is intact.
31
Brake release/pump neutral bypass
valve coil. Output is open or short-
circuited. Check the coil and wires.
32
Right pump FWD or REV output fault.
Output is open or short-circuited.
Check coil and wires.
33
Left pump FWD or REV output fault.
Output is open or short-circuited.
Check coil and wires.
35
Sensor power fault. Check sensor
wiring for power and ground.
36
Vibrator/electric actuator relay fault.
Output open or short-circuited. Check
relay and wires.