Drehzahl steigt und fällt

[HermanBolte]

Guten Abend,

Ich bin Herman Bolte aus Holland und Ich habe mit meine Agrifac Selbstfahr Spritze ein problem.
Entschuldigung für mein slechtes Deutsch.
Motor ist ein Deutz BF6M 2012 C mit 140 KW.
Wenn der Motor läuft, steigt und senkt sich die Drehzahl etwa 300 U / min.
Wer weiß, was hier los ist?

 

[Deutz45nullfuenf]

Hallo Hermann,

dieser Motor müsste einen Heinzmann Regler haben.
Probleme mit Leistungs- oder Drehzahlschwankungen kann man auf diesen Regler zurück führen. Darin ist eine Membran, die reißen kann.
Dann arbeitet der Regler nicht mehr ordentlich.

Heinzmann Regler Deutz Motor • Landtreff

 

[Mitaka_520]

Hello Herman, im Dimitar from Bulgaria i have the similar problem with my tractor deutz fahr agrotron 6.00s 6 cylinders BF6M l, the RPM are dancing +- 300 and i cant figure out whats happening. Can you tell me ,did you fix the problem and if you did, how?

 

[B.V.]

Ist das ein Elektronisch geregelter Motor (mit elektromagnet hinten am motor mit 5 poligen stecker mit Heinzmann steuergerät)? Oder mechanisch geregelter (mit 2 hebel oben am regler)? Vollast oder teillast, leerlauf oder vollgas?

Hierbij in het Nederlands:
Is het een elektronisch geregelde motor (te herkennen aan de elektromagneet met 5 polige stekker achteraan de motor + Heinzmann stuurdoos)? Of is het een mechanisch geregelde motor, met 2 hendeltjes bovenaan regelaar (met een gaskabel naar kabine)
Is dit op vollast of deellast, stationair of max toerental?

 

[Mitaka_520]

In my case(tractor deutz fahr 6.00s) it is with electromagnet and only 2 wires between heinzmann regulator and electromagnet this is how regulator looks like

 

[Mitaka_520]

It is happening (RPM dancing) in all cases, even when the gas pedal is pressed to the max, it has power and also theres no white or black smoke, but it looks like it is decideing by itself when to push

 

[Yohanz]

Hello Dimitar,

behind the right cover is a diaphragm that controls the injection. If this has a crack, the symptoms you describe will occur. Please check it.

Quote: To change the diaphragm, the opposite cover must be removed (in the direction of travel at the front, where the pressure line from the intake system is also screwed on). Behind it is a small circlip that holds the diaphragm in place.

Another quote:
To test the diaphragm, I have a small hand pump that is screwed onto the regulator instead of the boost pressure line.

I use it to pump approx. 0.5 bar onto the diaphragm and can see from the pressure gauge (pressure drop) whether the diaphragm is OK or not.

Greeting, Johannes

 

[B.V.]

In my case(tractor deutz fahr 6.00s) it is with electromagnet and only 2 wires between heinzmann regulator and electromagnet this is how regulator looks like Anhang anzeigen 202225

Check if the fuel rack moves back and forward without problem, it shoud move very easy. If a unit pump fails or when you have black sludge in the crankcase, it can be sticky, and that gives speed instability.

 

[Mitaka_520]

Hello Dimitar,

behind the right cover is a diaphragm that controls the injection. If this has a crack, the symptoms you describe will occur. Please check it.

Quote: To change the diaphragm, the opposite cover must be removed (in the direction of travel at the front, where the pressure line from the intake system is also screwed on). Behind it is a small circlip that holds the diaphragm in place.

Another quote:
To test the diaphragm, I have a small hand pump that is screwed onto the regulator instead of the boost pressure line.

I use it to pump approx. 0.5 bar onto the diaphragm and can see from the pressure gauge (pressure drop) whether the diaphragm is OK or not.

Greeting, Johannes

Hi Johannes, thanks for the answer
You are talking about the membrane, and yes I checked it, it had a tiny hole and i bought a new membrane from poland, also tested the new one with 0.5 bar and its ok, bit the problem still exists.
Greatings, Dimitar