Ford 7740 SLE Quad Mod electrolink 3pt goes up and down

[nosenfarmer]

when the 3pt is wheighted with pallet forks or a rake on 500kg, it will go down about 1cm and lit back up again. This keeps on going whenever the stuff is in the air. I also sometimes do not have a reading of the height percentage for the lift-arms and it shows fault code 21 which means «draft sensitivity control potentiometer or circiut failed». Does theese two things have a connection? The draft for plowing is at 6 i think. Would calibrating fix my problem? I have the manual, so there is no need to send me a procedure.

 

[Manny]

Take the four screws out of the plastic panel with your lift control dials on and blow the dust and rubbish out of the back of the control dials. This normally works on my 7740 to get rid of code 21. The bouncing could be if you have the draft set at 6 all the time. Set it to hight control for none draft jobs. I think from memory it's no.1

 

[nosenfarmer]

Take the four screws out of the plastic panel with your lift control dials on and blow the dust and rubbish out of the back of the control dials. This normally works on my 7740 to get rid of code 21. The bouncing could be if you have the draft set at 6 all the time. Set it to hight control for none draft jobs. I think from memory it's no.1

What is height control

 

[Manny]

Hight control is where you turn your draft off. So instead of leaving your draft set at no.6 turn it to no.1 I think, and then the lift arms should stay where you put them.

 

[forblue]

when the 3pt is wheighted with pallet forks or a rake on 500kg, it will go down about 1cm and lit back up again. This keeps on going whenever the stuff is in the air. I also sometimes do not have a reading of the height percentage for the lift-arms and it shows fault code 21 which means «draft sensitivity control potentiometer or circiut failed». Does theese two things have a connection? The draft for plowing is at 6 i think. Would calibrating fix my problem? I have the manual, so there is no need to send me a procedure.

The large knob should be turned anti-clock off that will give you position control which should be used for most implements except for ploughs and cultivators, if you have a manual it should explain that.

 

[nosenfarmer]

Hight control is where you turn your draft off. So instead of leaving your draft set at no.6 turn it to no.1 I think, and then the lift arms should stay where you put them.

why not put it to 0?

 

[forblue]

Height control has nothing to do with draft or position, that is to set where you want the implement to be the same thing can be done with position but if you moved the lift lever it would cause the arms to lift using height control will prevent that it won't stop arms going down only up.