LeeBoy 8510b, Operation & Service Manual

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8
LeeBoy Model 8510B Conveyor Paver 8-11
Troubleshooting
Critical Faults
The following faults will prevent paver movement:
1. Steering control box not detected.
2. Joysticks not optimized.
3. Pump control coil fault.
4. Brake valve/Pump neutral bypass coil fault (High
current output mode only).
5. Joystick(s) not in NEUTRAL at startup.
6. Joysticks in NEUTRAL with RUN/STOP switch in
RUN position safety timeout.
A joystick fault can prevent paver movement if:
• There is only one box present
• The fault happens in the box that has control (RUN/
STOP switch in RUN position)
• The fault occurs when neither box has control
NOTE: The paver will operate if fault occurs in the box
that is not currently in control ( i.e. the left box
is operating the paver and the right box has
a fault). The fault will disable the paver once
the controlling box is put in the STOP position.
Disconnecting the faulted box will allow control
to be restored to the opposite box.
Table 8-5. Fault Codes for Status LED
Blink Code Reason for Fault Corrective Action
Continuous On
(at startup)
Joysticks not in neutral at startup Place all joysticks in neutral
Continuous On
(while running)
Joysticks in neutral too long with Run/Stop
Switch in Run position (safety timeout) Toggle Run/Stop switch from Run to Stop and
back to Run
Continuous
rapid blink
Calibration Mode Open dashboard panel and unplug the Optimize/
Calibrate plug from the Calibrate receptacle
Continuous
slow blink
Optimize Mode Open dashboard panel and unplug the Optimize/
Calibrate plug from the Optimize receptacle
21 Left Steering Control Box not optimized Perform Optimize procedure in Section III
22 or 27 Left Steering Control Box:
Left joystick or FNR joystick fault Voltage <100mv or >4900 mv
Check wires to Left joystick or FNR joystick
23 or 28 Left Steering Control Box:
Right joystick or steering wheel fault Voltage <100mv or >4900 mv
Check wires to right joystick or steering wheel
24 Right Steering Control Box not optimized Perform Optimize procedure in Section III
25 or 37 Right Steering Control Box:
Left joystick or FNR joystick fault Voltage <100mv or >4900 mv
Check wires to Left joystick or FNR joystick
26 or 38 Right Steering Control Box:
Right joystick or steering wheel fault Voltage <100mv or >4900 mv
Check wires to right joystick or steering wheel
31 Break Release / Pump neutral bypass valve
coil
NOTE: Only used in high current output mode
The output is open or short-circuited
Check the coil and wires
32 Right pump FWD or REV output fault The output is open or short-circuited
Check the coil and wires
33 Left pump FWD or REV output fault The output is open or short-circuited
Check the coil and wires
36 Vibrator/ Electric Actuator relay fault The output is open or short-circuited
Check the relay and wires
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