4.2.6. Dynamic-Ride-Control system (DRC II)

Fig. 4.38. Places of installation of the Dynamic-Ride-Control system: 1 – forward right depreciation rack; 2 – forward right valve of pumping / filling; 3 – the DRC line to a forward right depreciation rack; 4 – back right valve of pumping / filling; 5 – back right shock-absorber; 6 – the DRC line to the back right shock-absorber; 7 – the tsetralny valve for forward left and back right the parties; 8 – the tsetralny valve for forward right and back left the parties; 9 – the DRC line to the back left shock-absorber; 10 – back left valve of pumping / filling; 11 – back left shock-absorber; 12 – the DRC line to a forward left depreciation rack; 13 – forward left valve of pumping / filling; 14 – forward left depreciation rack

Fig. 4.39. The central valve and screw connections to depreciation racks: 1 – the tsetralny valve for forward right and back left the parties; 2 – six-sided nut, 23 N · m; 3 – the locking valve to the back left line; 4 – the locking valve to the forward right line; 5 – six-sided nut, 23 N · m; 6 – the locking valve to the forward left line; 7 – the locking valve to the back right line; 8 – the tsetralny valve for forward left and back right the parties; 9 – the DRC line to the back right shock-absorber; 10 – the DRC line to a forward left depreciation rack; 11 – the DRC line to a forward right depreciation rack; 12 – the DRC line to the back left shock-absorber; 13 – locking screw; 14 – lock-nut, 12 N · m

For connection and shutdown of the measuring device the checked line has to be blocked on the central valve as much as possible to reduce leak of oil and not to empty the central valve which is under pressure.

Before removal or a detachment of any DRC components surely block the respective line on the central valve. If during the works on DRC to the open central valve there is even a small leak of oil, then the subsequent check of pressure in system with comparison of the set and actual values is anyway necessary. In case of understating of the minimum pressure replacement of the corresponding central valve is necessary.

The small leak of oil from connections at the closed central valve happening at an accession / detachment of the measuring device is not critical. It is necessary to avoid repeated measurements since at each connection the system is left by a little oil. At the subsequent connection it leads to pressure decrease approximately on 0,3 bars in comparison with the previous measurement. Thus a large number of measurements reduces pressure in system to minimum below up to a system exit out of operation.

Dampers and pipelines as spare parts are delivered empty.

Filling is made only at the room temperature (about 20 °C).

Dampers are filled only in the removed state.

It is forbidden to put the car on wheels with the closed filled system and the blocked central valves. It will surely lead to leaks and an exit of system out of operation.

Do not bend the line.