1 Main pump 2 Main control valve 3 Swing motor 4 Travel motor 5 RCV lever(LH) 6 RCV lever(RH) 7 RCV pedal 8 Boom cylinder(LH) 9 Boom cylinder(RH) 10 Arm cylinder 11 Bucket cylinder 12 Turning joint 13 Check valve 14 Check valve 15 Hydraulic tank 16 Oil cooler 17 Air breather 18 Return filter w/bypass valve 19 Strainer 21 3-cartridge valve 22 Pressure sensor 23 Pressure sensor 24 Pressure sensor 25 Terminal block 26 Last guard filter 27 Pilot selector valve 28 Screw coupling 29 Tee shuttle 30 Cross assy 42 2-EPPR valve 43 Fan motor 44 Fan pump 45 Direction change valve 73 Solenoid valve 76 Shockless valve [Arm Out] [Head] [Rod] ( ,d) 25 27 [Boom Down] [Head] [Rod] [Bucket In] [Bucket Out] [Boom Down] [Boom Up] P A T [Td#] [Arm Out] ( ,d) 25 [Arm2 In] ( ,e) 25 ( ,f) 25 ( ,g) 25 ( ,j) 25 ( ,h) 25 Pi ( ,j) 25 ( ,D) 12 ( ,h) 25 [Td#] [Td#] [Td#] [Td#] pa10 B9 A9 pb9 pa9 B8 A8 pb8 pa8 DR2' DR2 pc2 A7 B7 pb7 DR4 pc7 pa7 B6 A6 pb6 pa6 ARM 2 BUCKET BOOM 1 43 45 44 ( -1,A(To X1,Upper Position)) 29 ( -2,B(To X1, Down Position)) 29 ps1 ps2 T3 T1 T2 T4 10 11 8 9 [P1 Pump] [P2 Pump] OPTION ARM 1 BOOM 2 SWING pa11 DR1 DR1' pc1 B5 A5 pb5 pa5 pb4 A4 B4 pa4 A3 B3 pb3 A2 B2 pa3 pb2 pa2 DR3 B1 pc6 3-1 [Bucket In/Out Shuttle] ( -3,c) 29 ( ,e) 25 [Arm Holding] ( ,d) 25 ( ,e) 25 ( ,h) 25 ( ,j) 25 ( ,a) 25 [Td#] ( ,b) 25 [Rod] [Head] [Arm Out] [Arm In] [Boom2 Up] [Boom2 Down] [SW-CCW] [SW-CW] [Boom Pri'] ( ,C) 12 Dr MA L2 L1 L P VA(FW) VB(BW) 12 ( ,A1) 2 ( ,B1) 2 ( ,B6) 2 x 4 4 L/H R/H C A D B ( ,A6) 2 ( ,A4) 21 [Td#] ( ,T) 6 ( ,T) 7 ( ,T) 5 T1 T2 T3 Ps Ps MB MA E F G ( ,Pa1) 2 [RH-BW] 30 T [Td#] [SWING] [ARM] [BUCKET] [BOOM] [TRAVEL] (1) (3) (2) (4) (3) (1) (2) (4) (3) (4) (1) (2) ( ,Pa6) 2 ( ,Pb1) 2 [RH-FW] ( ,Pa3) 2 [BOOM DOWN] ( ,Pc6) 2 [SWING LOGIC] ( ,P) 42 ( ,P) 6 P1 ( ,P) 7 P2 ( ,P) 5 P3 P VA(BW) VB(FW) ( ,T2) 30 ( ,P2) 30 P T ( ,Pb6) 2 [LH-BW] ( ,Pb3) 2 [BOOM2 UP] 5 6 26 7 26 26 [LH-FW] ( ,Pc2) 2 [BOOM HOLDING] ( ,Pb7) 2 [BOOM UP] A B T D P [Td#] Dr MB a b d e f g h j c f1 h1 j1 e2 PS PS PS PS 24 24 24 24 24 24 24 Pi ( ,P4) 21 ( ,A) 73 A B E F G H J D ( ,Pa7) 2 [BOOM DOWN] ( ,Pa11) 2 [BUCKET OUT] [BUCKET FLOW CONPLUX] G PG MA MU ( ,T3) 30 ( ,T1) 30 P T P T d1 g1 PS PS A C B 29 -3 ( ,Pi) 45 ( ,PP) 2 GROUP 1 HYDRAULIC CIRCUIT GROUP 1 HYDRAULIC CIRCUIT VA(CCW) VB(CW) ( ,P1) 30 ( ,P3) 30 ( ,Pa8) 2 ( ,Pb8) 2 [BUCKET IN] ( ,Pa5) 2 ( ,Pc1) 2 ( ,Pa9) 2 [ARM IN] [ARM HOLING] [ARM2 IN] B A P1 3 3 PS 13 16 L [Td#] P4 P3 P2 1.
HYDRAULIC CIRCUIT (1/2) 1.
HYDRAULIC CIRCUIT (1/2) AU DR MB ( ,Pb9) 2 [ARM2 OUT] 18 A5 A2 A1 TRAVEL SAFETY 2nd SPEED POWER BOOST PG AU 76 76 ( ,Pb2) 2 ( ,Pa2) 2 [SWING CCW] [SWING CW] 14 ( ,PH) 2 MA MU VA(CCW) VB(CW) ( ,Pb5) 2 [ARM OUT] dr# 19 ( ,F) 12 25 ( ,P) 27 [BOOM LOGIC] 17 15 Td# 21 DR MB T(dr1) [Td#] [P1 Pump] ( -1,A(To X1,Upper Position)) 29 ps1 T3 T1 [Bucket In/Out Shuttle] ( -3,c) pa11 29 DR1' DR1 [Td#] ( ,e) pc1 25 [Arm Holding] B5 [Rod] A5 [Head] [Arm Out] ( ,d) pb5 25 ARM 1 [Arm In] ( ,e) pa5 25 B4 A4 pb4 pa4 OPTION A3 B3 [Boom2 Up] ( ,h) pb3 25 ON EL(RH) TRAVEL(LH TRAVEL STRAIGHT PSPT PPPA PH 24 ( ,A2) 21 ( ,P3) 21 PS 24 26 PS 2 2 2 3 X1 R4 Vm Vm R1 gaxVgmin PS M M X3 PS 2 3 M3 PS 2 3 X2 26 2 2 2