There are some general check points that have to be examined first if the machine is not functioning normally.
1. The oil pressure from tractor should be 185 bar.
2. The return flow of oil has to be as free to return to tank as possible, max. 10 bar counter pressure.
3. Enough electric power (12V) to all functions.
If the machine fails to operate correctly it must be determined if the problem is Hydraulic, Mechanical or Electrical.
Check Point Topics
- Oil Pressure
- Oil Flow
- Return Pressure
- Electric Power
- Sensor Input Check
Oil Pressure
In order to check that the oil pressure into the machine is high enough, a gauge may be applied to the oil pressure hose, for example on the quick coupler. If the pressure is less than 185 bar, there will be not be sufficient power for the functions of the machine.Oil Flow
The amount of oil that the tractor delivers should be minimum 25 litres/minute for satisfactory operation of the machine.
Note: (Max. allowed oil amount is 40 liters/minute). Ensure that oil level in tractor’s hydraulic system is correct and tractor’s oil filter is changed regularly.
REMEMBER! Large oil amount will mean that the Valves get hot. (Small Oil Tank will mean insufficient cooling).
Return Pressure:
The return pressure can be too high. With high return pressure the machine’s functions will get less power. High return pressure means also that you need more power to operate the valves. MAX. ALLOWED RETURN PRESSURE IS 10 BAR. We recommend “free return” directly to the tank.Electric Power:
It is important to check that all functions receive enough electric power (>12V). If not, some, or all functions may fail.
Sensor Input Check
Sensor Input Check Article // Expert Plus Controller (1400-V, S200-V, S300-V, Q200-V, Q300-V)
Sensor Input Check Article // Expert Controller (A100-EH, A200-EH, S100-A)
PLEASE CONTACT YOUR DEALER IF YOU ARE IN DOUBT ABOUT ANYTHING
(Remember always give the serial number and production year of your machine when contacting your dealer and when ordering spare parts).