COMPRESSOR GP 5371171 - Caterpillar

Illustration 1 g01007141
(1) Ripper Tip Cylinders (2) Ripper Lift Cylinders (3) Implement Control Valves (4) Blade Tilt Cylinders (5) Blade Lift Cylinders (6) Pilot Oil Line (7) Pressure Reducing Valve (8) Signal Line (9) Pump Compensator Valve (10) Implement Pump (11) Hydraulic Tank and Filter (12) End Cover (13) Ripper Tip Control Valve (14) Ripper Lift Control Valve (15) Blade Tilt Control Valve (16) Blade Lift Control Valve (17) Inlet ManifoldThe implement hydraulic system controls the operation of the blade and of the ripper. The hydraulic system can be different from one machine to the next machine according to the attachments that are on the machine.The basic implement hydraulic system consists of the following components:
Hydraulic Tank (11)
Implement Pump (10)
Pressure Reducing Valve (7)
Implement Control Valves (3)
Blade Lift Cylinders (5)
Blade Tilt Cylinder (4) If the machine is equipped with dual tilt, there are two blade tilt cylinders and a dual tilt control valve.If the machine is equipped with a ripper, there are two ripper lift cylinders (2) and two ripper tip cylinders (1). Also, there may be a pin puller cylinder and a pin puller control valve.Hydraulic oil is drawn from hydraulic oil tank (11) by implement pump (10). The implement pump sends oil to implement control valves (3) and to pressure reducing valve (7). The pressure reducing valve reduces the pump pressure in order to provide pilot pressure at a reduced pressure to the control solenoids. When the operator moves the blade control lever or the ripper control lever, an electric current is sent to the appropriate proportional control solenoid. The solenoid directs pilot oil that shifts the control valve in order to send pump oil to the appropriate hydraulic cylinders. The hydraulic cylinders move the blade or the ripper.At the same time, signal oil is sent from implement control valves (3) to pump compensator valve (9) in order to regulate pump output.