Side Stabilizer (Stabilizer / Check Chain)
A bar or chain arrangement that limits the lateral swing of the lower links. It is connected between the tractor body and the lower link; its length is adjusted to set how much the implement can move side to side. During transport the swing is locked out completely, while in tillage a limited amount of freedom can be left.
The stabilizer manages two different needs. When transporting on the road, the swing must be locked to near zero so the implement does not swing out and hit the wheels or the mudguard. In the field, however, some implements, particularly ploughs and subsoilers, are less strained with a few centimetres of lateral freedom.
- On bar-type stabilizers the length is set with a threaded turnbuckle and it holds in both directions.
- The chain type holds only in the pulling direction; a slack chain does not prevent swinging during transport.
- Set the right and left sides equally, otherwise the implement will constantly work tilted to one side.
When attaching implements with remote controls operated from outside the cab, it is easier to first loosen the stabilizer and tighten it after the pin is aligned. The electronic retrofit kit is not concerned with this adjustment; however, being able to move the hitch in short steps while standing outside the cab makes it practical to set the stabilizer length correctly with the implement attached.
Context in which this term is used: Converting a tractor hydraulic lever to electronic control