Fliegl VFW, Руководство по эксплуатации

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12
8.9 Installing forced steering on the towing vehicle (optional)
The customer mast adapt the forced steering individually to each towing vehicle. This means that the settings must be re-
adapted every time the towing vehicle is changed.
The dimensions on the Ø 80 ball head coupling and the clearances according to ISO 500 and ISO 730 must be applied.
Procedure
Mounting of the steering cylinder at the same axial and
vertical height as the ball head coupling on the towing
vehicle (tractor) with 250 mm clearance (

5).
Fig. 26
:
Installation layout for forced steering
- At maximum steering angle, the tyres must not touch the frame or other parts of the vehicle.
- Check the axle stops and adapt them to the tyre size if necessary.
- At maximum steering angle of the hydraulic cylinders with coupling (52°), ensure sufficient space from the panelling on
the outside and from the flange coupling on the inside.
- The cylinder protection (on the side of the traction bar) must be checked and adjusted for every towing vehicle type; if
necessary, double the cylinder protection until the wheels of the towing vehicle (tractor) make contact at maximum
steering angle.
Attention! The stopcocks on the steering axle must be opened before commencing travel, otherwise
the hydraulic cylinders may be damaged.
When coupling the towing vehicle to the trailer, approaching in exactly the same position as when uncoupling will not
work. The forced steering can therefore be re-coupled as follows.
Procedure
- Approach the trailer with your towing vehicle as straight as possible.
- Couple the towing vehicle to the trailer via the trailer coupling.
- Release the lock at the end of the forced steering cylinders by lifting up the lever.
- The cylinder can now move freely and can be easily connected to the towing vehicle.
- Fold the lock lever back down again.
- Drive the tractor/trailer combination forwards slowly until the vehicles are in a straight line. The forced steering
cylinder lock should re-engage during this process.
The tanker is delivered with the stopcocks on the steering axle closed. They must be opened before
commencing travel, otherwise the hydraulic cylinders may be damaged.
Setting up the system
1. Open stopcocks 1, 2 and 3
2. Drive the tractor/trailer combination forwards slowly until the vehicles
are in a straight line
3. Apply a pressure of 50 bar to the system
4. Close stopcock 1
5. Close stopcocks 2 and 3 one after the other
6. Check whether the forced steering is functioning correctly at full
steering lock
7. If not, there may be air in the system
Fig. 27
:
Forced steering valves (tandem)
Note: The system is filled in the factory.
Pressure
gauge
1
2
3