7-10 SHB WL34 * 2.0
7 Steering system
Steering orbitrol S1
The pressure relief valve 4 protects the steering orbitrol from excessive
pressure. In combination with the priority valve 5 it limits the maximum
steering pressure P.
The priority valve 5 ensures that steering always has the highest priority.
The load pressure signal is sent from the steering orbitrol to the priority
valve 5. The load-sensing signal controls the oil flow from the priority
valve 5 to the steering orbitrol.
The check valve 6 in connection P of the steering orbitrol protects the
driver against shocks from the steering wheel. It prevents the oil from
flowing back through the steering orbitrol if the pressure on the L or R
cylinder side becomes larger than on the pump side P. The excessive oil
flow flows through connection EF to the control valve V15/V22.
Removing/installing the steering orbitrol
Preparing work
Tools:
• Suitable receptacle for collecting the hydraulic oil
• Plugs (different sizes) for closing the oil lines
Technical data
Use a suitable container to collect the hydraulic oil as it drains off and
dispose of it in an environmentally friendly manner!
Disassemble
1. Release the pressure in the hydraulic system – see “Releasing
residual pressure in the hydraulic system” on page E-32.
2. Remove the cover plate 7.
3. Mark installation positions on all hydraulic hoses.
4. Unscrew the union nuts and remove the hydraulic hoses.
5. Close all openings with suitable plugs.
Designation Weight
S1 Steering orbitrol 5.8 kg
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