Fault Tracing, Slip Control - Valtra 6000 Workshop Manual

34. Autocontrol ---III
Output signals from ECS for controlling power take ---off (DIGITAL OUTPUTS)
PTO 540 LAMP (A1C/1)
PTO 1000 LAMP (A1C/39)
PTO SOLENOID (A1C/21)
PTO 540 ON/OFF
PTO 1000 ON/OFF
PTO ON/OFF
1
) 1 is seen only momentarily when the ON/OFF switch is moved to the ON position and then it changes to 0. However, if the engine
is running during the test the 1 remains on.
a) Engine is stationary and the 540 RPM PTO is engaged; when the emergency plug is pulled out, the PC display shows E at the
PTO SOLENOID. E changes to 0 when the plug is refitted. This same function concerns also the 1000 RPM PTO
b) Engine is running and the 540 RPM PTO is engaged; when the emergency plug is pulled out, the PC display shows E at the
PTO SOLENOID and the PTO 540 LAMP starts to flash. When the plug is refitted, the E changes to 0 but the PTO 540 LAMP
remains flashing. This same function concerns also the 1000 RPM PTO.
--- If the table marks above and the PC display marks agree with the given switch positions, the possible fault must lie in the emerg-
ency plug, in the solenoid valve or in the indicating lamp or their wirings are faulty.
--- If the output signals on the PC display differ from the marks in the table above, the central processing unit (ECS) is faulty and
should be changed.
E. Fault tracing, slip control
Input signals to ECS for slip control (DIGITAL INPUTS)
SLIP CNTR 1/0 (A2C/16)
SLIP CONTROL ON/OFF
--- If the marks above the thick line agree with the corresponding marks on the computer display, the input signals are OK.
--- If the marks on the computer do not agree with the marks above the thick line with given switch positions, the fault lies in the
switch or its wiring is faulty.
--- The radar and the gearbox speed sensor are checked according to the calibrating instruction on page 341/1 or according to
the instruction F on the next page.
Output signals from ECS for slip control (DIGITAL OUTPUTS)
SLIP CNTR (A1C/18)
SLIP CONTROL ON/OFF
1
) When the switch is in the ON position, disconnect the radar connector and drive the tractor at a speed of 3 km/h (power lift
activated in the position control mode). Alternatively one rear wheel can be raised and then started carefully to drive with a low
gear (4WD must be disengaged and the A/M switch must be in M position).
--- If the table marks above and the PC display marks agree, the signal is sent from ECS to the hydraulic lift. If the lower links do
not make a lifting correction the possible fault lies in wiring or the power lift electronics do not function.
--- If the marks on the PC do not agree with the marks above, the fault lies in the ECS which must be changed.
15. 6. 1992
1. 9. 1992
0 0
0 0
0 0
OFF ON
OFF OFF
OFF OFF
0 1
OFF ON
0 1
1
OFF ON )
376
Model
6600E, 8100E
1
1 0
)
0 0
1
1 0
)
ON OFF
OFF ON
ON OFF
Code Page
342 6
0
1
1
)
1
1
)
OFF
ON
ON