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Hydraulic brakes of trailers
Connect the hydraulic brakes of the trailer or semi-
trailer into the quick coupling marked with an arrow.
The control of the hydraulic brakes of the trailer or semi-
trailer and the brake control of the tractor is performed so
that the braking effect of both vehicles is synchronized.
The working pressure is derived from the oil supplied by
the non-displaceable hydraulic gear pump.
The trailer brake valve is controlled by the brake fluid
pressure from the main brake cylinders in response to the
brake pedal force. At maximum brake pedal depression,
the clutch head pressure must be 12 to 15 MPa. The
trailer brake valve favors the function of the brakes before
the hydraulic function.
If there are a shocks in the hydraulic circuit piping when
the foot brake pedals are depressed , it is necessary to
vent the hose from the brake valve to the quick coupler.
Connecting and disconnecting quick couplings of trailer hydraulic brakes
When connecting and disconnecting quick couplings, take increased care with regard for
remaining oil which remains in the socket or in the plug of quick coupling. For ecological reasons, it
is necessary to remove this remaining oil after every disconnection of quick couplings with any
textile material.
The socket for connection of the electrical installation of the trailer or semi-trailer
The outlet for the trailer or semi-trailer wiring is located at
the rear of the tractor.
Behind the outlet bracket there is a wire allowing for
controlling handbrake for trailers or semi-trailers with
a hydraulic braking system.
There is a three-pin socket on outlet bracket for powering
trailer or semi-trailer attachments.
120
DRIVING OPERATION
F18N037
C18N085
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