Coupling hydraulic hose lines

All hydraulic hoses are fitted with handles. The handles have colored markings with code number or a code letter. The markings are assigned to the respective hydraulic functions of the pressure line of a tractor control unit. Stickers that match the marking are affixed on the machine to illustrate the respective hydraulic functions.

The tractor control unit is used in different activation types, depending on the hydraulic function:

Activation type

Function

Symbol

Latching

Permanent oil circulation

Momentary

Oil circulation until action is executed

Floating

Free oil flow in the tractor control unit

Marking

Function

Tractor control unit

Blue

Boundary spreading device for lime

Lower

Lift

Double-acting

Green

Jack

Lift

Lower

Double-acting

Beige

Cover tarpaulin

open

close

Double-acting

Red

Continuous oil circulation

Single-acting

Red

Pressureless return flow

Red

Load sensing control line

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 return flow to the intended coupling, before establishing all other hydraulic connections.

If the implement has a leakage oil line:

couple the leakage oil line in the intended coupling.
Mount the supplied coupling sleeve on the pressureless hydraulic oil return.
  1. Depressurize the hydraulic system between the tractor and the machine using the tractor control unit.
  2. Clean the hydraulic plug connectors.
NOTE

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

  1. Install the supplied coupling sleeve on the pressure-free oil return of the tractor.
  2. First, couple the hydraulic hose line of the return flow T to the pressure-free oil return of the tractor.
  1. Connect the hydraulic hose lines 1 to the hydraulic sockets of the tractor in accordance with the marking 2.

The hydraulic plug connectors lock tangibly.

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