PLATE-SERVICE INFORMATION 1C4195 - Caterpillar

Stick In (Fast with Regeneration - Work Tool Suspended)
Illustration 3 g06118601
Hydraulic schematic for STICK IN (fast with regeneration)
(1) Pilot control valve (stick and swing)
(2) Stick cylinder
(3) Line (oil flow to stick cylinder head end)
(4) Line (oil flow from stick cylinder rod end)
(5) Pilot line
(6) Center bypass passage
(7) Return passage
(8) Main control valve
(9) Passage
(10) Passage
(11) Return line
(14) Pilot line
(15) Pilot line
(16) Stick I control valve
(17) Return passage
(18) Check valve
(19) Passage
(20) Load check valve
(21) Center bypass passage
(22) Boom II control valve
(23) Return passage
(24) Parallel feeder passage
(25) Center bypass passage
(26) Check valve
(27) Stick II control valve
(28) Drive pump
(29) Idler pump
(30) Pilot pump
(31) Stick regeneration valve
(32) Spring
(33) Spring
(34) Pilot line
(35) Pressure reducing valve for boom priority
(36) Pilot line
(37) Pilot line
(38) Pilot line
(39) Passage
(40) Stick unloading valve
(41) Passage
(42) Passage
(43) Passage
(44) Passage
(45) Check valve
(46) Passage
(47) Pilot line
(48) Pilot lineThe STICK IN operation contains a regeneration circuit. During a STICK IN function, stick regeneration valve (31) and stick unloading valve (40) are operational in the stick hydraulic circuit. The return