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１．液压油箱２、３．齿轮泵４．回油滤油器５．进油滤油器６．中心回转体７．减压阀８．滤油器９．单向阀１０．压力表１１．蓄能器１２．回转换向阀１３．伸缩换向阀１４．变幅换向阀１５．起升换向阀１６．液控换向阀１７．副吊钩操纵阀１８．主吊钩操纵阀１９．液控单向阀
1. Hydraulic tank 2,3. Gear pump 4. Return oil filter 5. Into the oil filter 6. Center revolving body 7. Pressure reducing valve 8. Oil filter 9. Check valve 10. Pressure gauge 11. Accumulator 12. Turn the changeover valve 13. Retractable valve 14. Luffing directional valve 15. Lift reversing valve 16. Hydraulic control valve 17. Vice hook control valve 18. Main hook control valve 19. Hydraulic check valve