Sơ đồ thủy lực máy đào CAT 320
©2003 CaterpillarAll Rights ReservedPrinted in U.S.A.RENR3613-01January 2003320C U ExcavatorHydraulic SystemAPA1-UPCLM1-UPALX1-UPCLZ1-UPFBB1-UPGAB1-UPMAC1-UPPAC1-UPDR2T-OUT(2)PSA1DR1PSA2P-INPi1P2PACP1DR6T-OUT(1)DR5Pi2DR4XTANK3AL4AL3AL2AL1BL4BL3BL2BL1282726252435232221201847464544Main Conrol ValvePilot Oil Manifold1343 INTOUTBDrPi2PiDr1A3M1M2A1A2NO3PINPACPi1P2P1PSA2DR6DR5PSA1DR4DR3DR2DR1BP1BTB ATTS1S3Pn1TOUT2TOUT1RREFFRPsM2Ps1PsM1TP1P2B2A2 B1G DCBAUPn2B8B7B6CB5B4B3B2B1A8A7A6A5A4A3A2A1CLOSEOPENSDrSTSP1SP2Pi3 Di3DSTPRPLAR4R1BR4AR3BR3AR2BR2SPiSP3AR1BR1BR5PB6DB6PB2PB1DOWNLRINDi4Pi4AL1UPOUTbL3AR5PmG2G1AL4DB1BL1DB2AL2A BPB5A1BL2BPiAL3R2G4BP3G3BP2bR4aR5Pi1aR4bR5HRDi1aR3bR3aR2bR2aR1bR1aL1bL1Dr2HLPs2aL2bL2bL4Pi2aL4Di2DB5Pp3R3Pp3DRNO1(SWBL3aL3MUDRABPGPILOT LINEDRAIN LINEHydraulic SchematicMAIN CONNECTOR LINE171-0097ItemComponentSTANDARD COMPONENTSComponentNo.ItemNo.12345678910111213141516171819202122232425262728293536373839404133344546474842444350495154555657525358 12345678991011121314151617181920212223242526272829303132333435363738394041424344 4546474849505130313259606162 Stick Cylinder Swing Motor Travel Motor (Left) Travel Motor (Right) Anti-Reaction Valve (Swing Motor) Travel Brake Valve (Left) Travel Brake Valve (Right) Bucket Cylinder Boom Cylinders Swivel Pilot Control Valve (Travel) Stick Drift Reduction Valve Main Control Valve Boom Drift Reduction Valve Pressure Switch Pressure Switch Negavtive Flow Control Relief Valve Boom II Control Valve Stick Regeneration Valve Stick I Control Valve Swing Control Valve Left Travel Control Valve Straight Travel Control Solenoid Right Travel Control Valve Attachment Control Valve Bucket Control Valve Boom I Control Valve Stick II Control Valve Pilot Control Valve (Swing and Stick) Pilot Control Valve (Boom and Bucket) Stick Unloading Valve Line Relief Valve (Stick Cylinder Head End) Variable Swing Priority Valve Straight Travel Control Valve Main Relief Valve Line Relief Valve (Bucket Cylinder Rod End) Line Relief Valve (Bucket Cylinder Head End) Boom Regeneration Valve Line Relief Valve (Boom Cylinder Rod End) Negative Flow Control Relief Valve Logic Valve Pressure Switch Pilot Oil Manifold Travel Speed Solenoid Valve Swing Parking Brake Solenoid Valve Valve (Hydraulic Activation) Solenoid Valve (Hydraulic Actation) Accumulator Reducing Valve (Boom/Swing Priority Mode) Pressure Sensor (Left Pump) Bypass Check ValveSlow Return Check Valve Oil Cooler Hydraulic Tank Return Filter Case Drain Filter Pilot Relief Valve Pilot Filter Left Pump Right Pump Pilot Pump Pressure Sensor (Right Pump)52535455565758596061621856545361605958555712 13 14 17 18 19 2021 22 2324 2526 2728 31 32 33 34 3536 37 38 39 40637443 44 45 46 479210g00948176 . ©2003 CaterpillarAll Rights ReservedPrinted in U.S.A.RENR361 3-0 1January 2003320C U ExcavatorHydraulic SystemAPA1-UPCLM1-UPALX1-UPCLZ1-UPFBB1-UPGAB1-UPMAC1-UPPAC1-UPDR2T-OUT(2)PSA1DR1PSA2P-INPi1P2PACP1DR6T-OUT(1)DR5Pi2DR4XTANK3AL4AL3AL2AL1BL4BL3BL2BL1282726252435232221201847464544Main. SystemAPA1-UPCLM1-UPALX1-UPCLZ1-UPFBB1-UPGAB1-UPMAC1-UPPAC1-UPDR2T-OUT(2)PSA1DR1PSA2P-INPi1P2PACP1DR6T-OUT(1)DR5Pi2DR4XTANK3AL4AL3AL2AL1BL4BL3BL2BL1282726252435232221201847464544Main