ADAPTER-BRG 1U6217 - Caterpillar

Illustration 1 g03708828
Medium pressure control valve group
(1) Control valve group (hydraulic cab riser)
(2) Flow control and dump valve
(3) Control valve group (load sensing, medium pressure)
(4) Relief valve (line relief)
(5) Control valve group (joystick steering)
(6) Port to tank
(7) Port from pilot manifold
(8) Control valve group (medium pressure function)
Illustration 2 g02426501
Partial schematic for the medium pressure circuit
(1) Control valve group (hydraulic cab riser)
(3) Control valve group (load sensing, medium pressure)
(5) Control valve group (joystick steering)
(6) Port to tank
(7) Port from pilot manifold
(8) Control valve group (medium pressure function) The partial schematic for the medium pressure circuit is shown in Illustration 1. The medium pressure circuit is separate from the main hydraulic circuit.Medium Pressure Control Valve Group - The medium pressure control valve group is used to control the direction of the oil flow to the medium pressure attachment. Control valves for the hydraulic cab riser and for the joystick steering can also be contained in the medium pressure manifold. The control valves are activated by a solenoid.Line Relief Valve (4) - The line relief valve limits the maximum pressure for the medium pressure circuit.The medium pressure control valve group is mounted on the frame to the right of the pilot manifold.