Coupling the hydraulic hose lines

All hydraulic hoses are equipped with handles. The handles have colour labels with a code number or a code letter. The labels are assigned to the respective hydraulic functions of the pressure line of a tractor control unit. Stickers are applied on the implement for the labels, which illustrate the respective hydraulic functions.

The tractor control unit is used with different types of actuation, depending on the hydraulic function:

Type of actuation

Hydraulic function

Symbol

Latching

Permanent hydraulic oil circulation

Momentary

Hydraulic oil flow until action is executed

Floating

Free hydraulic oil flow in the tractor control unit

Designation

Function

Tractor control unit

Red

Pump drive

Single-acting

Red

Pressure-free return flow

IMPORTANT
Implement damage due to insufficient hydraulic oil return flow
On the tractor side, only use lines that correspond to the nominal width of red T of the implement or larger for the pressureless hydraulic oil return flow.
Select short return paths.
Connect the pressureless hydraulic oil return flow to the intended coupling before all of the other hydraulic connections.

If the implement has a leakage oil line:

couple the leakage oil line in the intended coupling.
Install the supplied coupling sleeve on the pressureless hydraulic oil return.
  1. Depressurise the hydraulic system between the tractor and the implement using the tractor control unit.
  2. Clean the hydraulic plugs.
NOTE

If the hydraulic hose lines are incorrectly connected, the hydraulic functions may be faulty.

  1. Couple the hydraulic hose lines 1 to the hydraulic sockets of the tractor according to the marking 2.

The hydraulic plugs lock perceptibly.

  1. Route the hydraulic hose lines with sufficient freedom of movement and without chafing points.