SENSOR 5690048 - Caterpillar

Schematic
Illustration 1 g02756858
Stick hydraulic schematic
(1) Stick cylinder
(2) Main control valve
(3) Stick control valve
(4) Pilot control valve (Stick and Swing)
(5) Oil line for stick out operation
(6) Oil line for stick in operation
(7) Pilot pump
(8) Main pump
(9) Hydraulic tank The stick hydraulic circuit is controlled by pilot control valve (4). Main pump oil is supplied to main control valve (2). The main pump oil flows to stick cylinder (1) depending on the operation of pilot control valve (4).When control valve (4) is operated, pilot oil pressure flows from pilot pump (7) to stick control valve (3). Pilot oil pressure shifts the spool of valve (3). Main pump oil flows through control valve (3) to stick cylinder (1).Main pump oil flows to the head end of stick cylinder (1) when control valve (4) is moved to the STICK IN position. The stick will move in.Main pump oil flows to the rod end of stick cylinder (1) when control valve (4) is moved to the STICK OUT position. The stick will move out.
Illustration 2 g02756859
Stick hydraulic system (Stick IN)
(1) Stick cylinder
(2) Main control valve
(3) Stick control valve
(4) Pilot control valve (Stick and Swing)
(5) Line (pilot flow for stick out operation)
(6) Line (pilot flow for stick in operation)
Illustration 3 g02756860
Location of pilot control valve (4)
( 4) Left joystick (Stick and Swing) Stick In
Illustration 4 g02756861
Control valve Stick IN
(2) Main control valve
(3) Stick control valve
(10) Port (pilot flow for stick OUT operation)
(11) Port (pilot flow for stick IN operation)
(12) Port (stick cylinder head end)
(13) Port (stick cylinder rod end)
(14) Return passage
(15) Parallel feeder passage Pump oil from the main pump is routed to the main control valve and flows to stick control valve (3). Stick control valve (3) is actuated by pilot oil pressure from pilot control valve (4).When pilot valve (joystick) (4) is moved backward to the stick IN position, pilot oil flows to port (11) of control valve (3). The pilot oil shifts the spool of stick control valve (3).Main pump oil flows through parallel feeder passage (15)