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Sơ đồ thủy lực máy đào CAT 345
©2002 CaterpillarAll Rights ReservedPrinted in U.S.A.RENR3756-02August 2002345B Series II ExcavatorHydraulic System345B II:AMA1-UPALB1-UPALD1-UPAMD1-UPAKJ1-UPALL1-UPAMJ1-UPAMN1-UPAYR1-UPAGS1-UPALT1-UPAKX1-UPPGPSAT-OUTDR6DR5DR4Pi8Pi3Pi2Pi1PACDR3DR2DR1Pi5JPiC/VPEPUP-INAL4BL3 BL2BL1BL4AL3AL2AL1XPTAPSWPiHBR1BR2AR3AR4AR1AR2BR3Yf037803618173029 28272624252322 20133137381243494847465014Main Control ValvePilot Oil Manifold2151 Travel Motor (Right)ItemComponentSTANDARD COMPONENTSComponentNo.ItemNo.1234567891011121314151617181920212223242527262829303132333435363738394041424344454647484950515253545556575859606162636465 Left Swing Motor Right Swing Motor Travel Motor (Left) Stick Cylinder Travel Brake Valve (Left) Travel Brake Valve (Right) Bucket Cylinder Boom Cylinder Swivel Boom Raise Pressure Switch Stick Drift Reduction Valve Line Relief Valve (Stick Cyliner Rod End) Main Control Valve Implement/Swing Pressure Switch Travel Pressure Switch Line Relief Valve (Boom Cylinder Head End) Boom Drift Reduction Valve Pilot Control Valve (Travel) Boom II Control Valve Stick I Control Valve Swing Control Valve Left Travel Control Valve Straight Travel Control Valve Main Relief Valve Right Travel Control Valve Attachment Control Valve Bucket Control Valve Boom I Control Valve Stick II Control Valve Line Relief Valve (Stick Cylinder Head End) Valve (Regeneration)Valve (Regeneration and Cut) Pressure Control Valve Logic Valve Line Relief Valve (Bucket Cylinder Head End) Line Relief Valve (Bucket Cylinder Rod End) Line Relief Valve (Boom Cylinder Rod End) Negative Flow Control Relief Valve Pilot Filter Hydraulic Activation Control Valve Accumulator Drain Filter Solenoid Valve (Fine Control) Solenoid Valve (Travel Speed) Solenoid Valve (Swing) Pilot Relief Valve Pilot Oil Manifold Upper Pump Lower PumpAutomatic Travel Speed Change Valve Cooling Pump Pilot Pump Slow Return Check Valve Bypass Check Valve Return Filter Oil Cooler Radiator Fan Motor Hydraulic Tank Cooling Pump Relief ValveHydraulic SchematicMAIN CONNNECTOR LINEPILOT LINEDRAIN LINE165-9624 ScreenB ADR1MUSWINGMOTOR`PG1SWINGMOTORMUDR2ABPG2 PG3(COOLANT)BSTICKSWINGBOOMBUCKETJR1JR3JR4JR2JRTJRPJL2JL4JL1JL3JLTJLPAR1BR1AL2BL2XDRHLdL5aL5BL4bL4AL3BL3aL3bL2AL1BL1aL1PSWaR1aR2AR2BR2bR3aR4YHRAR4R1dSWbR2 bR1 PLPRPp1bL1PATaL2 bL3 aL4BOOM(1)BUCKETATCHTRAVEL(R)PiLaR3dR4SA5SA4SA3SA2SA1SB5 SB4SB3SB2SB1SP(B)BPi(F)(B)(R)(L)SWING(F)LL1SST(DOWN)(OPEN)(FWD)(FWD)(L)(IN)(UP)(CLOSE)(UP)(IN,OUT,DOWN)dR5(BACK)(BACK)(R)AR3R1SR2X1X2M3X3A1M1A2M2R1A3T1RIGHTL'L'(OUT)BR3R2B' A'S2BRR3BRMBMAMBA'B'T1LEFTAPi2A'PP2Pi8PSAPGB'STICK(1)STICK(2)BOOM(2)TRAVEL(L)TOUTDR1DR2DR3BADR4DR5DR6(SLOW)Pi3(TRAVEL)(SWING)PINPEU(PUMP)Pi1Pi2C/VTRACKJPiPi5(RELIEF)T2PTAXT2MA(OIL)TTTPTRAVEL(R)PACTRAVEL(L)TLA1BDrTLA2 TRA2TRA1BXPSLAXAPiADrAL4512364710191213203132332134352223242514151640425758606164625945634647484950514365444152535456558992627282936373830171839 Pilot Control Valve (Stick/Swing) Pilot Control Valve (Boom/Bucket) Proportional Reducing Valve (Powershift)11f0377939SERIES II3555465632534 74541596310960 6114121958 . ©2002 CaterpillarAll Rights ReservedPrinted in U.S.A.RENR375 6-0 2August 2002345B Series II ExcavatorHydraulic System345B II:AMA1-UPALB1-UPALD1-UPAMD1-UPAKJ1-UPALL1-UPAMJ1-UPAMN1-UPAYR1-UPAGS1-UPALT1-UPAKX1-UPPGPSAT-OUTDR6DR5DR4Pi8Pi3Pi2Pi1PACDR3DR2DR1Pi5JPiC/VPEPUP-INAL4BL3. II:AMA1-UPALB1-UPALD1-UPAMD1-UPAKJ1-UPALL1-UPAMJ1-UPAMN1-UPAYR1-UPAGS1-UPALT1-UPAKX1-UPPGPSAT-OUTDR6DR5DR4Pi8Pi3Pi2Pi1PACDR3DR2DR1Pi5JPiC/VPEPUP-INAL4BL3 BL2BL1BL4AL3AL2AL1XPTAPSWPiHBR1BR2AR3AR4AR1AR2BR3Yf037803618173029