HARNESS AS-PUMP 2992646 - Caterpillar

Stick In
Illustration 3 g01573098
Hydraulic schematic for STICK IN (fast with regeneration)
(1) Stick cylinder
(2) Line (oil flow to stick cylinder head end)
(3) Line (oil flow from stick cylinder rod end)
(4) Pilot line
(5) Pilot line
(6) Stick drift reduction valve
(7) Boom II control valve
(8) Valve
(9) Passage
(10) Passage
(11) Stick I control valve
(12) Load check valve
(13) Center bypass passage
(14) Center bypass passage
(15) Check valve
(16) Stick II control valve
(17) Pilot control valve (stick and swing)
(18) Shuttle valve
(19) Stick regeneration valve
(20) Stick unloading valve
(21) Return passage
(22) Pilot line
(23) Pilot line
(24) Pilot line
(25) Parallel feeder passage
(26) Return passage
(27) Pilot line
(28) Pilot line
(29) Line
(30) Line (drain)
(31) Pressure reducing valve for boom priority
(32) Drive pump
(33) Idler pump
(34) Pilot pump
(35) Main control valve The STICK IN operation contains a regeneration circuit. When the joystick for the stick is moved to the STICK IN position, stick regeneration valve (19) and stick unloading valve (20) are operational in the stick hydraulic circuit. The return oil from the rod end of stick cylinder (1) is supplied to the head end