Đang tải... (xem toàn văn)
Shop manual máy đào HuynDai R170W-9 (Phần 1) Phần thủy lực
3-29The oil from the A1 and A2 pump flows through the neutral oil passage, bypass oil passage and confluence oil passage in the main control valve. Then the oil goes to each actuator and operates them. Check valves and orifices are located on these oil passage in the main control valve. These control the oil from the main pumps so as to correspond to the operation of each actuator and smooth the combined operation.1. OUTLINE1. OUTLINEB1A1A2B2PT2T4(TGP)ACC1GPBR1BR2ACC2ACC1CT4PPGPCT3CT1CT2dr3dr2BRAKE VALVEARMCYLINDERBUCKETCYLINDERTRAVEL MOTORFRONT AXLEREAR AXLEOSCILLATINGCYLINDERTRANSMISSIONSWING MOTORTURNINGJOINTBOOM CYLINDERTPM2PTPTMKBAC1T3P1P1P2L RM1PuPc42Pb3Pd41DR1Pb21Pb20Pa20Pb1Pa1T1Pc3Pa21V3Pd2D2C2Pc1D1C1Pd1AiB4B5A5Pa5Pb5Pa4Pb4C5D5D4C4Pc40Pd40DR3Pc5Pd5RsC6D6P03PSP1P2P3P0PattP02PSPn1Pi1(Pump)Pi2(Pump)Pn2PSPSPd6Pc6PSPc2P05PuoPc41DR5DR2DR4DR0SH(S/Motor)ARM 1BOOM 2SWINGTRAVELOPT-CBOOM 1ARMREGENBUCKETOPT-BDOZERARM 2HYDRAULIC TANKDOZER/ OUTRIGGER CYLINDERPILOTPUMPA1PUMPA2PUMPP04GROUP 5 COMBINED OPERATIONGROUP 5 COMBINED OPERATION17W93HC23 3-30When the swing and boom up functions are operated, simultaneously the swing spool and boom spools in the main control valve are moved to the functional position by the pilot oil pressure from the remote control valve.The oil from the A1 pump flows into the swing motor through swing spool and the boom cylinder through boom 2 spool.The oil from the A2 pump flows into the boom cylinders through the boom 1 spool in the right control valve.The super structure swings and the boom is operated.Refer to page 3-13 for the boom priority system.2. COMBINED SWING AND BOOM UP OPERATION2. COMBINED SWING AND BOOM UP OPERATIONB1A1A2B2PT2T4(TGP)ACC1GPBR1BR2ACC2ACC1CT4PPGPCT3CT1CT2dr3dr2BRAKE VALVEARMCYLINDERBUCKETCYLINDERTRAVEL MOTORFRONT AXLEREAR AXLEOSCILLATINGCYLINDERTRANSMISSIONSWING MOTORTURNINGJOINTBOOM CYLINDERTPM2PTPTMKBAC1T3P1P1P2L RM1PuPc42Pb3Pd41DR1Pb21Pb20Pa20Pb1Pa1T1Pc3Pa21V3Pd2D2C2Pc1D1C1Pd1AiB4B5A5Pa5Pb5Pa4Pb4C5D5D4C4Pc40Pd40DR3Pc5Pd5RsC6D6P03PSP1P2P3P0PattP02Pn1Pi1(Pump)Pi2(Pump)Pn2PSPSPd6Pc6PSPc2P05PuoPc41DR5DR2DR4DR0SH(S/Motor)ARM 1BOOM 2SWINGTRAVELOPT-CBOOM 1ARMREGENBUCKETOPT-BDOZERARM 2HYDRAULIC TANKDOZER/ OUTRIGGER CYLINDERPSPILOTPUMPA1PUMPA2PUMPP0417W93HC24 3-31When the swing and arm functions are operated, simultaneously the swing spool and arm spools in the main control valve are moved to the functional position by the pilot oil pressure from the remote control valve.The oil from the A1 pump flows into the swing motor through swing spool and the arm cylinder through arm 1 spool.The oil from the A2 pump flows into the arm cylinder through the arm 2 spool of the right control valve.The super structure swings and the arm is operated.Refer to page 2-35 for the swing operation preference function.3. COMBINED SWING AND ARM OPERATION3. COMBINED SWING AND ARM OPERATIONB1A1A2B2PT2T4(TGP)ACC1GPBR1BR2ACC2ACC1CT4PPGPCT3CT1CT2dr3dr2BRAKE VALVEARMCYLINDERBUCKETCYLINDERTRAVEL MOTORFRONT AXLEREAR AXLEOSCILLATINGCYLINDERTRANSMISSIONSWING MOTORTURNINGJOINTBOOM CYLINDERTPM2PTPTMKBAC1T3P1P1P2L RM1PuPc42Pb3Pd41DR1Pb21Pb20Pa20Pb1Pa1T1Pc3Pa21V3Pd2D2C2Pc1D1C1Pd1AiB4B5A5Pa5Pb5Pa4Pb4C5D5D4C4Pc40Pd40DR3Pc5Pd5RsC6D6P03PSP1P2P3P0PattP02PSPn1Pi1(Pump)Pi2(Pump)Pn2PSPSPd6Pc6PSPc2P05PuoPc41DR5DR2DR4DR0SH(S/Motor)ARM 1BOOM 2SWINGTRAVELOPT-CBOOM 1ARMREGENBUCKETOPT-BDOZERARM 2HYDRAULIC TANKDOZER/ OUTRIGGER CYLINDERPILOTPUMPA1PUMPA2PUMPP0417W93HC25 3-32When the swing and bucket functions are operated, simultaneously the swing spool and bucket spool in the main control valve are moved to the functional position by the pilot oil pressure from the remote control valve.The oil from the A1 pump flows into the swing motor through the swing spool in the left control valve.The oil from the A2 pump flows into the bucket cylinder through the bucket spool in the right control valve.The super structure swings and the bucket is operated.4. COMBINED SWING AND BUCKET OPERATION4. COMBINED SWING AND BUCKET OPERATIONB1A1A2B2PT2T4(TGP)ACC1GPBR1BR2ACC2ACC1CT4PPGPCT3CT1CT2dr3dr2BRAKE VALVEARMCYLINDERBUCKETCYLINDERTRAVEL MOTORFRONT AXLEREAR AXLEOSCILLATINGCYLINDERTRANSMISSIONSWING MOTORTURNINGJOINTBOOM CYLINDERTPM2PTPTMKBAC1T3P1P1P2L RM1PuPc42Pb3Pd41DR1Pb21Pb20Pa20Pb1Pa1T1Pc3Pa21V3Pd2D2C2Pc1D1C1Pd1AiB4B5A5Pa5Pb5Pa4Pb4C5D5D4C4Pc40Pd40DR3Pc5Pd5RsC6D6P03PSP1P2P3P0PattP02PSPn1Pi1(Pump)Pi2(Pump)Pn2PSPSPd6Pc6PSPc2P05PuoPc41DR5DR2DR4DR0SH(S/Motor)ARM 1BOOM 2SWINGTRAVELOPT-CBOOM 1ARMREGENBUCKETOPT-BDOZERARM 2HYDRAULIC TANKDOZER/ OUTRIGGER CYLINDERPILOTPUMPA1PUMPA2PUMPP0417W93HC26 . 1BOOM 2SWINGTRAVELOPT-CBOOM 1ARMREGENBUCKETOPT-BDOZERARM 2HYDRAULIC TANKDOZER/ OUTRIGGER CYLINDERPSPILOTPUMPA1PUMPA2PUMPP0417W93HC24 3-3 1When the swing and. 1BOOM 2SWINGTRAVELOPT-CBOOM 1ARMREGENBUCKETOPT-BDOZERARM 2HYDRAULIC TANKDOZER/ OUTRIGGER CYLINDERPILOTPUMPA1PUMPA2PUMPP0417W93HC25 3-3 2When the swing and