Location

On the firewall.

Function

  Normally the hydraulic system will deliver pressure to the front and rear brakes, steering (Diravi) and suspension (height adjustment).
  THE SAFETY VALVE will at low pressure of the hydraulic system shut LHM supply to suspension and rear brakes, but not to the Diravi. It will at the same time switch on the STOP light.
  With even lower pressure, the LHM-supply to the Diravi will also be closed. Then only the front brakes will get pressure.
  And if the pressure is completely gone, you only have the hand brakes left (which you probably haven't bothered to keep in working order;), along with a VERY heavy mechanical steering.

Replacing

• Before replacing the safety valve loosen the bleed screw AND remove the pressure on the brake accu.