Renault Premium DXi 11, Service Manual

Page: 204 / 400

D1-2
Use of the equipment
Fifth wheel coupling
Only fifth wheels mounted by RENAULT TRUCKS are covered in this document. For using
fifth wheels mounted as adaptation, refer to the manufacturer's brochure.
These instructions are only a reminder as they form part of the rules of the road haulage
profession. Use of the locking handle and safety system: see pages D1-4 - D1-7).
Hitching
Prior to hitching the trailer, check that:
– the fifth wheel locking system is open;
– the support face of the semi-trailer is slightly below the fifth wheel skid plate (about
5 cm). If necessary, adjust the height of the semi-trailer or of the tractor if it is equipped
with air suspension;
– the skid plate, the locking system and the kingpin are plentifully greased;
– there is no foreign matter on the friction surfaces;
– the trailer is immobilized by its parking brake or by wheel chocks.
Reverse the tractor slowly into the alignment of the semi-trailer until the skid plate comes
into contact with the semi-trailer. Engage the vehicle under the semi-trailer until the fifth
wheel locks automatically.
Visually ensure that:
– the fifth wheel is properly locked and in particular that the unlocking prevention
system (snap-hook, lock pin, safety lever or catch) is engaged (see pages D1-4 - D1-7).
– the semi-trailer is applied over the full extent of the skid plate.
Carry out a pulling test (with the semi-trailer brake applied, begin to move away gently to
ensure that the kingpin is correctly locked in the fifth wheel: the tractor must be held by the
trailer).
Connect the yellow brake line, then the red brake line, in sequence.
Connect the hydraulic and electric pipes and lines.
Release the semi-trailer parking brake, according to the assembly.
Raise the landing legs and return the suspension to the "normal" position.
The vehicle is ready to move off.