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联系人：普斯威德液压传动系统由于其独特的优点，即具有广泛的工艺适应性、优良的控制性能和较低廉的成本，在各个领域中获得愈来愈广泛的应用。但由于客观上元件、辅件质量不稳定和主观上使用、维护不当，且系统中各元件和工作液体都是在封闭油路内工作，不象机械设备那样直观，也不象电气设备那样可利用各种检测仪器方便地测量各种参数,液压设备中，仅靠有限几个压力表、流量计等来指示系统某些部位的工作参数，其他参数难以测量，而且一般故障根源有许多种可能，这给液压系统故障诊断带来一定困难。[3] 4WEH16E6X/6EG24NTS2Z5L 　　4WEH16F6X/6EW220-50NZ5L 4WEH16F6X/6EG24NZ5L 4WEH16F6X/6EW220-50NEZ5L 4WEH16F6X/6EG24NEZ5L 4WEH16F6X/6EW220-50NETZ5L 4WEH16F6X/6EG24NETZ5L 4WEH16F6X/6EW220-50NTZ5L 4WEH16F6X/6EG24NTZ5L 4WEH16F6X/6EW220-50NETS2Z5L 4WEH16F6X/6EG24NTS2Z5L 　　4WEH16G6X/6EW220-50NZ5L 4WEH16G6X/6EG24NZ5L 4WEH16G6X/6EW220-50NEZ5L 4WEH16G6X/6EG24NEZ5L 4WEH16G6X/6EW220-50NETZ5L 4WEH16G6X/6EG24NETZ5L 4WEH16G6X/6EW220-50NTZ5L 4WEH16G6X/6EG24NTZ5L 4WEH16G6X/6EW220-50NETS2Z5L 4WEH16G6X/6EG24NTS2Z5L 　　4WEH16H6X/6EW220-50NZ5L 4WEH16H6X/6EG24NZ5L 4WEH16H6X/6EW220-50NEZ5L 4WEH16H6X/6EG24NEZ5L 4WEH16H6X/6EW220-50NETZ5L 4WEH16H6X/6EG24NETZ5L 4WEH16H6X/6EW220-50NTZ5L 4WEH16H6X/6EG24NTZ5L 4WEH16H6X/6EW220-50NETS2Z5L 4WEH16H6X/6EG24NTS2Z5L 　　4WEH16J6X/6EW220-50NZ5L 4WEH16J6X/6EG24NZ5L 4WEH16J6X/6EW220-50NEZ5L 4WEH16J6X/6EG24NEZ5L 4WEH16J6X/6EW220-50NETZ5L 4WEH16J6X/6EG24NETZ5L 4WEH16J6X/6EW220-50NTZ5L 4WEH16J6X/6EG24NTZ5L 4WEH16J6X/6EW220-50NETS2Z5L 4WEH16J6X/6EG24NTS2Z5L 　　4WEH16L6X/6EW220-50NZ5L 4WEH16L6X/6EG24NZ5L 4WEH16L6X/6EW220-50NEZ5L 4WEH16L6X/6EG24NEZ5L 4WEH16L6X/6EW220-50NETZ5L 4WEH16L6X/6EG24NETZ5L 4WEH16L6X/6EW220-50NTZ5L 4WEH16L6X/6EG24NTZ5L 4WEH16L6X/6EW220-50NETS2Z5L 4WEH16L6X/6EG24NTS2Z5L 　　4WEH16M6X/6EW220-50NZ5L 4WEH16M6X/6EG24NZ5L 4WEH16M6X/6EW220-50NEZ5L 4WEH16M6X/6EG24NEZ5L 4WEH16M6X/6EW220-50NETZ5L 4WEH16M6X/6EG24NETZ5L 4WEH16M6X/6EW220-50NTZ5L 4WEH16M6X/6EG24NTZ5L 4WEH16M6X/6EW220-50NETS2Z5L 4WEH16M6X/6EG24NTS2Z5L 　　4WEH16P6X/6EW220-50NZ5L 4WEH16P6X/6EG24NZ5L 4WEH16P6X/6EW220-50NEZ5L 4WEH16P6X/6EG24NEZ5L 4WEH16P6X/6EW220-50NETZ5L 4WEH16P6X/6EG24NETZ5L 4WEH16P6X/6EW220-50NTZ5L 4WEH16P6X/6EG24NTZ5L 4WEH16P6X/6EW220-50NETS2Z5L 4WEH16P6X/6EG24NTS2Z5L 　　4WEH16Q6X/6EW220-50NZ5L 4WEH16Q6X/6EG24NZ5L 4WEH16Q6X/6EW220-50NEZ5L 4WEH16Q6X/6EG24NEZ5L 4WEH16Q6X/6EW220-50NETZ5L 4WEH16Q6X/6EG24NETZ5L 4WEH16Q6X/6EW220-50NTZ5L 4WEH16Q6X/6EG24NTZ5L 4WEH16Q6X/6EW220-50NETS2Z5L 4WEH16Q6X/6EG24NTS2Z5L 　　4WEH16R6X/6EW220-50NZ5L 4WEH16R6X/6EG24NZ5L 4WEH16R6X/6EW220-50NEZ5L 4WEH16R6X/6EG24NEZ5L 4WEH16R6X/6EW220-50NETZ5L 4WEH16R6X/6EG24NETZ5L 4WEH16R6X/6EW220-50NTZ5L 4WEH16R6X/6EG24NTZ5L 4WEH16R6X/6EW220-50NETS2Z5L 4WEH16R6X/6EG24NTS2Z5L 　　4WEH16S6X/6EW220-50NZ5L 4WEH16S6X/6EG24NZ5L 4WEH16S6X/6EW220-50NEZ5L 4WEH16S6X/6EG24NEZ5L 4WEH16S6X/6EW220-50NETZ5L 4WEH16S6X/6EG24NETZ5L 4WEH16S6X/6EW220-50NTZ5L 4WEH16S6X/6EG24NTZ5L 4WEH16S6X/6EW220-50NETS2Z5L 4WEH16S6X/6EG24NTS2Z5L 　　4WEH16T6X/6EW220-50NZ5L 4WEH16T6X/6EG24NZ5L 4WEH16T6X/6EW220-50NEZ5L 4WEH16T6X/6EG24NEZ5L 4WEH16T6X/6EW220-50NETZ5L 4WEH16T6X/6EG24NETZ5L 4WEH16T6X/6EW220-50NTZ5L 4WEH16T6X/6EG24NTZ5L 4WEH16T6X/6EW220-50NETS2Z5L 4WEH16T6X/6EG24NTS2Z5L 　　4WEH16U6X/6EW220-50NZ5L 4WEH16U6X/6EG24NZ5L 4WEH16U6X/6EW220-50NEZ5L 4WEH16U6X/6EG24NEZ5L 4WEH16U6X/6EW220-50NETZ5L 4WEH16U6X/6EG24NETZ5L 4WEH16U6X/6EW220-50NTZ5L 4WEH16U6X/6EG24NTZ5L 4WEH16U6X/6EW220-50NETS2Z5L 4WEH16U6X/6EG24NTS2Z5L 　　4WEH16V6X/6EW220-50NZ5L 4WEH16V6X/6EG24NZ5L 4WEH16V6X/6EW220-50NEZ5L 4WEH16V6X/6EG24NEZ5L 4WEH16V6X/6EW220-50NETZ5L 4WEH16V6X/6EG24NETZ5L 4WEH16V6X/6EW220-50NTZ5L 4WEH16V6X/6EG24NTZ5L 4WEH16V6X/6EW220-50NETS2Z5L 4WEH16V6X/6EG24NTS2Z5L 　　4WEH16W6X/6EW220-50NZ5L 4WEH16W6X/6EG24NZ5L 4WEH16W6X/6EW220-50NEZ5L 4WEH16W6X/6EG24NEZ5L 4WEH16W6X/6EW220-50NETZ5L 4WEH16W6X/6EG24NETZ5L 4WEH16W6X/6EW220-50NTZ5L 4WEH16W6X/6EG24NTZ5L 4WEH16W6X/6EW220-50NETS2Z5L 4WEH16W6X/6EG24NTS2Z5L 　　4WEH16EA6X/6EW220-50NZ5L 4WEH16EA6X/6EG24NZ5L 4WEH16EA6X/6EW220-50NEZ5L 4WEH16EA6X/6EG24NEZ5L 4WEH16EA6X/6EW220-50NETZ5L 4WEH16EA6X/6EG24NETZ5L 4WEH16EA6X/6EW220-50NTZ5L 4WEH16EA6X/6EG24NTZ5L 4WEH16EA6X/6EW220-50NETS2Z5L 4WEH16EA6X/6EG24NTS2Z5L 　　4WEH16EB6X/6EW220-50NZ5L 4WEH16EB6X/6EG24NZ5L 4WEH16EB6X/6EW220-50NEZ5L 4WEH16EB6X/6EG24NEZ5L 4WEH16EB6X/6EW220-50NETZ5L 4WEH16EB6X/6EG24NETZ5L 4WEH16EB6X/6EW220-50NTZ5L 4WEH16EB6X/6EG24NTZ5L 4WEH16EB6X/6EW220-50NETS2Z5L 4WEH16EB6X/6EG24NTS2Z5L 　　4WEH16JA6X/6EW220-50NZ5L 4WEH16JA6X/6EG24NZ5L 4WEH16JA6X/6EW220-50NEZ5L 4WEH16JA6X/6EG24NEZ5L 4WEH16JA6X/6EW220-50NETZ5L 4WEH16JA6X/6EG24NETZ5L 4WEH16JA6X/6EW220-50NTZ5L 4WEH16JA6X/6EG24NTZ5L 4WEH16JA6X/6EW220-50NETS2Z5L 4WEH16JA6X/6EG24NTS2Z5L 　　4WEH16JB6X/6EW220-50NZ5L 

在生产现场，由于受生产计划和技术条件的制约，要求故障诊断人员准确、简便和高效地诊断出液压设备的故障；要求维修人员利用现有的信息和现场的技术条件，尽可能减少拆装工作量，节省维修工时和费用，用*简便的技术手段，在尽可能短的时间内，准确地找出故障部位和发生故障的原因并加以修理，使系统恢复正常运行，并力求今后不再发生同样故障。GHPA2-D-20+GHPP2-D-20马祖奇双联泵

意大利马祖奇双联泵齿轮泵，三联泵齿轮泵

MARZOCCHI/马祖奇

ALPA2-S-9+ALPP2-S-9双联泵

GHPA2-D-6+GHPP2-D-6双联泵

GHPA2-D-16+GHPP1-D-9双联泵

GHPA3-D-120+GHPP1-D-11双联泵

ALPA2-D-20-FG+ALPP1-D-9-FG双联泵

ALP2A-D-30-FG ALP2A-D-30-FG双联泵

ALPA3A-D-60-FG+ALPP3-D-60-FG双联泵

ALPA3A-D-80-FG+ALPP3-D-80-FG双联泵

GHPA2-D20+GHPI2-DS20+GHPP2-D20三联泵

GHPA2-D25+GHPI2-DS25+GHPP2-D25三联泵

GHPA2-D10+GHPI2-DS10+GHPP2-D10三联泵

GHPA2-D20+GHPI2-DS20+GHPP2-D20三联泵

GHPA2-D-20+GHPP2-D-20马祖奇双联泵

意大利马祖奇 齿轮泵 MARZOCCHI 双联齿轮泵 三联齿轮泵 液压马达 进口液压泵

马祖奇齿轮泵ALP系列：

ALP1-D-2-FG,ALP1-D-3-FG,ALP1-D-4-FG

ALP1-D-5-FG,ALP1-D-6-FG,ALP1-D-7-FG

ALP1-D-9-FG,ALP1-D-11-FG,ALP1-D-13-FG

ALP1-D-16-FG,ALP1-D-20-FG

ALP1A-D-2-FG,ALP1A-D-3-FG,ALP1A-D-4-FG

ALP1A-D-5-FG,ALP1A-D-6-FG,ALP1A-D-7-FG

ALP1A-D-9-FG,ALP1A-D-11-FG,ALP1A-D-13-FG

ALP1A-D-16-FG,ALP1A-D-20-FG,ALP2A-D-6-FG

ALP2A-D-9-FG,ALP2A-D-10-FG,ALP2A-D-12-FG

ALP2A-D-13-FG,ALP2A-D-16-FG,ALP2A-D-20-FG

ALP2A-D-22-FG,ALP2A-D-25-FG,ALP2A-D-30-FG

ALP2A-D-34-FG,ALP2A-D-37-FG,ALP2A-D-40-FG

ALP2A-D-50-FG

ALP2-D-6,ALP2-D-9,ALP2-D-10

ALP2-D-12,ALP2-D-13, ALP2-D-16

ALP2-D-20,ALP2-D-22,ALP2-D-25

ALP2-D-30,ALP2-D-34,ALP2-D-37

ALP2-D-40,ALP2-D-50

ALP1-D-4-TO-E-FG,ALP1-D-6-TO-E-FG,ALP3-D-25-TO-E-FG

ALP3-D-40-TO-E-FG...

GHPA2-D-20+GHPP2-D-20马祖奇双联泵

意大利马祖奇 齿轮泵 MARZOCCHI 双联齿轮泵 三联齿轮泵 液压马达 进口液压泵

马祖奇高压齿轮泵GHP系列：

GHP2A-D-40-C1-FG

GHP2-D-20-FG

GHP1A-D-5-C1-FG

GHP1-D-2-TO-E-FG

GHP1A-D-2-FG

GHP1A-D-3-FG

GHP1A-D-4-FG

GHP1A-D-5-FG

GHP1A-D-6-FG

GHP1A-D-7-FG

GHP1A-D-9-FG

GHP2A-D-6-FG

GHP2A-D-9-FG

GHP2A-D-10-FG

GHP1A-D-2-FG

GHP1A-D-3-FG

GHP1A-D-4-FG

GHP1A-D-5-FG

GHP1A-D-6-FG

GHP1A-D-7-FG

GHP1A-D-9-FG

GHP2A-D-13-FG

GHP2A-D-16-FG

GHP2A-D-25-FG

GHP*A-D-*-FG

齿轮泵 1PD5.8

齿轮油泵GHP3A-P-50-FG

GHP1-D-5

ALPA2-D-20-FG+ALPP1-D-9-FG 

液压齿轮马达ALM2BK1-R-37-C2-FG-E1

Marzocchi双联泵ALPA4-D-160+GHPP3-S-60-D

GHP3-D-80

型号GHP1A-D-4-FG

型号 ALP2-D-20-EP

Marzocchi GHP2-D-9 

GHPP3-S-66-D

ALPA3-D-80

GHPP3-S-33-D

ALPA4-D-160

意大利ALP1A-D-9-FG

型号 GHP2A-D-25-FG

双联齿轮泵 GHPA2-D-6+GHPP2-D-6

型号 GHP2A-D-25-FG

GHP1A-D-11-FG 

GHP1A-D-11-FG

GHP1-D-11-FG

GHP3-D-40

MARZOCCHI型号：ALP2-D-9

GHPA3-S-110+GHPP3-S-110

GHPA3-S-110

GHPP3-S-110

齿轮泵GHP2-D-25

齿轮泵ALPC2A-D-20/20-S2-FG-FG 

意大利GHPA1-D-6+GHPP1-D-6 4CC/R

液压马达型号：ALM2A-R-6-S1-FG-E1

MARZOCCHI液压泵 ALP2-D-25

高压齿轮泵GHPA1-D-6+GHPP1-D-6 4CC/R

GHP3 - S-110

MARZOCCHI型号：ALP2A-D-6-FC 

泵 ALP3A-D-135-FA 

油泵ALP2-S-40

齿轮泵 ALP3A-D-94-FA

GHP2-D-30-V齿轮泵

齿轮泵 IPD3.3GAS

泵 ALP2-D-16

ALP3-D-110-V

ALPA1-D-6

ALPA2A-D-20-FG+ALPP2-D-9-FG

ALPA2A-D-9-FG

ALPA2-D-20-FG

ALPA3-D-120

ALPP1-D-9-FG

GHP1-D-2

GHP2A-D-12

GHP2A-D-20-C1

GHP2A-D-25-FG

GHP2A-D-30-SI-V-TR

GHP2A-D-50-FG

GHP2A-D-6-FG

GHP2-D-10

GHP2-D-30V

GHP2-D-40V

GHP2-D-9

GHP2-S-9-FG

GHP3A-D-40-FG

GHP3-S-60-FG

GHPA1-D-9+GHPP1-D-4

GHPA3-S-94+GHPP3-S-94

GHPP3-D-33

GHPP3-D-66-D

ALPP2-D-25

ALP3A-D-50-S1-E

GHP3A-D-60-S1-FG

GHP2A-D-9-C1-FG

ALPP1-D-9-FG+ALPP1-D-9-FG

ALP4A-D-220

GHP2A-D-40-FG

ALP2BK7-S-9

ALP1A-D-11-C1-FG

ALP1A-D-7-C1-FG

ALP1A-D-7-FG

ALPA2-S-9+ALPP2-S-9

ALP2A-D-16-V

ALP3A-D-50-S1-E

ALPP2-D-25

ALPA3-D-66+ALPP2-D-40

液压系统故障诊断的一般原则

正确分析故障是排除故障的前提，系统故障大部分并非突然发生，发生前总有预兆，当预兆发展到一定程度即产生故障。引起故障的原因是多种多样的，并无固定规律可寻。统计表明，液压系统发生的故障约90%是由于使用管理不善所致为了快速、准确、方便地诊断故障，必须充分认识液压故障的特征和规律，这是故障诊断的基础。齿轮泵 GHP3A-D-60-V

齿轮泵 GHP3A-D-60-H

齿轮泵 GHP3A-D-60-V

齿轮泵 GHP3A-D-60-H

齿轮泵 GHP3A-D-60-V

齿轮泵 GHP3A-D-60-H

ALP2A-D-6-FG

ALP2A-D-9-FG

ALP2A-D-10-FG

ALP2A-D-12-FG

ALP2A-D-13-FG

ALP2A-D-16-FG

ALP2A-D-20-FG

ALP2A-D-22-FG

ALP2A-D-25-FG

ALP2A-D-30-FG

ALP2A-D-34-FG

ALP2A-D-37-FG

ALP2A-D-40-FG

ALP2A-D-50-FG

ALP2-D-6-FG

ALP2-D-9-FG

ALP2-D-10-FG

ALP2-D-12-FG

ALP2-D-13-FG

ALP2-D-16-FG

ALP2-D-20-FG

ALP2-D-22-FG

ALP2-D-25-FG

ALP2-D-30-FG

ALP2-D-34-FG

ALP2-D-37-FG

ALP2-D-40-G

ALP2-D-50-FG

GHP2A-D-40-C1-FG

GHP2-D-20-FG

GHP1A-D-5-C1-FG

GHP1-D-2-TO-E-FG

ALP1-D-4-TO-E-FG

ALP1-D-6-TO-E-FG

ALP3-D-25-TO-E-FG

ALP3-D-40-TO-E-FG

GHP1A-D-2-FG

GHP1A-D-3-FG

GHP1A-D-4-FG

GHP1A-D-5-FG

GHP1A-D-6-FG

GHP1A-D-7-FG

GHP1A-D-9-FG

GHP2A-D-6-FG

GHP2A-D-9-FG

GHP2A-D-10-FG

GHP2A-D-13-FG

GHP2A-D-16-FG

GHP2A-D-20-FG

GHP2A-D-22-FG

GHP2A-D-25-FG

GHP2A-D-30-FG

GHP2A-D-34-FG

GHP2A-D-40-FG

GHP3A-D-30-FG

GHP3A-D-33-FG

GHP3A-D-40-FG

GHP3A-D-50-FG

GHP3A-D-60-FG

GHP3A-D-66-FG

GHP3A-D-80-FG

GHP3A-D-94-FG

GHP3A-D-110-FG

GHP3A-D-120-FG

GHP3A-D-135-FG

GHP2A-D-34;

GHP3-D-40

GHP3-D-3

GHP1-D-6GHP2-S-13

ALP2A-D-30

ALP2A-D-40

ALP2-D-16-CO-FG

ALP2-D-16-FG;

ALP2-D-22-COKLPD6.7G

ALP2-D-6

ALP2A-D-16

ALP2A-D-34

ALP2A-D-9

ALP2-D-22

ALP1-D-11

ALP2-D-20

ALP2-D-30;

ALP2BK1-D-6

ALP2BK1-D-9

ALP2BK1-D-10

ALP2BK1-D-12

ALP2BK1-D-13

ALP2BK1-D-16

ALP2BK1-D-20

ALP2BK1-D-22

ALP2BK1-D-25

ALP2BK1-D-30

ALP2BK1-D-34

ALP2BK1-D-37

ALP2BK1-D-40

ALP2BK2-D-6

ALP2BK2-D-9

ALP2BK2-D-10

ALP2BK2-D-12

ALP2BK2-D-13

ALP2BK2-D-16

ALP2BK2-D-20

ALP2BK2-D-22

ALP2BK2-D-25

ALP2BK2-D-30

ALP2BK2-D-34

ALP2BK2-D-37

ALP2BK2-D-40

ALP2BK4-D-6

ALP2BK4-D-9

ALP2BK4-D-10

ALP2BK4-D-12

ALP2BK4-D-13

ALP2BK4-D-16

ALP2BK4-D-20

ALP2BK4-D-22

ALP2BK4-D-25

ALP2BK4-D-30

ALP2BK4-D-34

ALP2BK4-D-37

ALP2BK4-D-40

ALP2BK7-D-6

ALP2BK7-D-9

ALP2BK7-D-10

ALP2BK7-D-12

ALP2BK7-D-13

ALP2BK7-D-16

ALP2BK7-D-20

ALP2BK7-D-22

ALP2BK7-D-25

ALP2BK7-D-30

ALP2BK7-D-34

ALP2BK7-D-37

ALP2BK7-D-40

ALP3-D-30

ALP3-D-33

ALP3-D-40

ALP3-D-50

ALP3-D-60

ALP3-D-66

ALP3-D-80

ALP3-D-94

ALP3-D-110

ALP3-D-120

ALP3-D-135

ALP3A-D-30

ALP3A-D-33

ALP3A-D-40

ALP3A-D-50

ALP3A-D-60

ALP3A-D-66

ALP3A-D-80

ALP3A-D-94

ALP3A-D-110

ALP3A-D-120

ALP3A-D-135

ALP4-D-130

ALP4-D-160

ALP4-D-190

ALP4-D-220

ALP4-D-250

ALP4-D-270

ALP4-D-300

ALP4E-D-130

ALP4E-D-160

ALP4E-D-190

ALP4E-D-220

ALP4E-D-250

ALP4E-D-270

ALP4E-D-300

ALP4A-D-130

ALP4A-D-160

ALP4A-D-190

ALP4A-D-220

ALP4A-D-250

ALP4A-D-270

ALP4A-D-300