15.0 CHECK POINTS BEFORE TROUBLE SHOOTING.
In this chapter we have some general check points that have to be examined first if something is
wrong with the machine. In chapter 17.0 we have a more detailed trouble shooting.
There are three basic assumptions that have to be fulfilled if the machine shall function properly:
1.
The oil pressure from tractor should be 180 bar.
2.
The return flow of oil has to be as free as possible, max. 10 bar counter pressure.
3.
Enough electric power to all functions.
15.1
OIL PRESSURE.
In order to control that the oil pressure into the machine is high enough, there has to be applied a
gauge to the oil pressure hose, for example on the quick coupler.
If the pressure is less than 180 bar, there will be less power for the functions. The first place you
trace this is at the ROLLERS OUT / IN.
OIL AMOUNT.
The oil amount that the tractor delivers must be
minimum 15 liters/minute,
but it is recommended
that it is 25 liters/minute. (Max. allowed oil amount is 40 liters/minute).
REMEMBER! Large oil amount = Valves get hot. (Small oiltank = insufficient cooling).
15.2
COUNTER PRESSURE.
The counter pressure can be too high. With high counter pressure the machine's functions will get
less power. High counter pressure means also that you need more power to operate the valves.
MAX. ALLOWED COUNTER PRESSURE IS 10 BAR.
If you are in doubt about the counter pressure, arrange a "free return" directly to the tank.
If the counter pressure goes over 105 bar, the emergency outlet valve, (S2), will open and let the
oil out on the ground through the outlet tube. (See chapter 14.4).
15.3
ELECTRIC POWER.
It is important to check that all function gets enough electric power.
If not, some, or all functions may fall out.
Is the battery voltage high enough?
The control box display indicates the voltage being supplied if this is too low.
If the voltage falls below 10 volts this is treated as an interruption of the power supply and all functions
stop.
Are the cables correctly connected to the battery?
Follow directions in chapter 4.4 and 13.0.
Is the connection between battery cable and control unit OK?
Clean off the poles and check that the plug comes correct in place.
Is the connection between remote control unit and machine OK?
Change contacts if any doubt about the condition.
Is the fuse on the battery cable OK?
In addition to the fuse on the battery cable, there is a fuse inside the remote control. This is 10A, and
secures the current to the magnet valves.
PLEASE CONTACT YOUR DEALER IF YOU ARE IN DOUBT OF ANYTHING.
(Remember always to give your dealer the serial number and productionyear of your machine
when contacting dealer and when ordering spare parts).
* Emergency stop: see chapter 2.1
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