PLATE 2061959 - Caterpillar

Illustration 1 g03554640
Combined Function - Electronic Control
(1) Stick cylinder
(2) Boom cylinders
(3) Line
(4) Line
(6) Left joystick (stick)
(7) Right joystick (boom)
(8) Main control valve
(9) Proportional reducing valve (A2 retract)
(10) Proportional reducing valve (A1 retract)
(11) Proportional reducing valve (A2 extend)
(12) Proportional reducing valve (A1 extend)
(13) Boom DOWN control pressure sensor
(14) Boom UP control pressure sensor
(15) Stick OUT control pressure sensor
(16) Stick IN control pressure sensor
(17) F2.2 stack valve
(18) Tool line relief valve
(19) Attachment control valve (drive pump)
(20) Attachment control valve (idler pump)
(21) Tool line relief valve
(22) Hydraulic oil cooler
(23) Pilot manifold
(28) Pump control solenoid
(29) Pump control solenoid
(34) Main relief valve
(35) Hydraulic tank
(36) Pilot relief valve
(37) Pilot pump
(38) Drive pump
(39) Idler pump Two-Way / One Pump with electronic control is designed to allow complete electronic control over the work tool. This hydraulic system allows the operator to control a work tool with a two-way flow system with from one pump.Two-Way Flow from One Pump
Two-way flow from one pump can be achieved by selecting a work tool that requires two-way flow from one pump. The work tool can be selected through the monitor or by the work tool select switch. A typical example is a grapple that receives oil from one pump only.When one pump flow is required to the work tool, the pump supplying the oil can be programmed through the monitor. The following situations are listed to increase controllability