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Test Procedure to Evaluate Fluids in
Open Loop Axial Piston Pumps

Technical Data V-PUPI-TS022-E

Pump Model
PVH57C-RF-2S-11-C25V-31

This test procedure is to evaluate fluids for use in
open loop axial piston pumps. It consists of 250 hours
of actual test time (not including break-in or per-
formance running). The operation temperature is
dependent upon the capability of the test fluid as
specified by the fluid manufacturer or the rated
temperature specified for the pump, whichever is
lower. Inlet fluid temperature must be maintained per
fluid/pump rating throughout the complete test.

The pump to be used is a PVH57 with a pressure
compensator and load sensing control, model code
PVH57C-RF-2S-11-C25V-31.

Table of Contents

Fluid Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Pump Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Pump Performance Check Procedure . . . . . . . . . . . . . . . . . . . . . . . 3

Disassembly and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Test Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Fifty-Hour Pressure Cutoff Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Two Hundred-Hour Cyclic Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Final Fluid Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Fluid Pass/Fail Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Appendix A - Efficiency Formulas. . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Appendix B - Control Pressure Hysteresis Test . . . . . . . . . . . . . . . . 10

Pump Performance Check Record . . . . . . . . . . . . . . . . . . . . . . . . . 11

Fluid Properties Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Piston/Bore Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

™

Содержание Vickers PVH57C-RF-2S-11-C25V-31

Страница 1: ...ump whichever is lower Inlet fluid temperature must be maintained per fluid pump rating throughout the complete test The pump to be used is a PVH57 with a pressure compensator and load sensing control...

Страница 2: ...getable Base 1800 250 3625 65 149 Environmentally Friendly Synthetic Base 2400 250 3625 95 203 Figure 1 Component 1 Vented reservoir approx 102 gallons 2 Heater 3 Strainer optional 4 Thermometer 5 2 g...

Страница 3: ...the compensator at rated pressure adjust speed and temperature per the ratings for the test fluid Perform the pump performance check procedure Sequence of Operations 1 Energize 15 while 16 is de ener...

Страница 4: ...igure 3 Identify the pistons and respective bores in the cylinder barrel per Figure 4 for re assembly into the same location NOTE In millimeters measure cylinder barrel bores and piston OD to three de...

Страница 5: ...ally Figure 5 5 Cradle saddle bearings inspect visually Figure 5 6 Bias and control piston rod inspect visually Figure 6 7 Hold down arms and shoe face inspect visually 8 Shaft and shaft bearings insp...

Страница 6: ...ump at full displacement and some pressure set by 17 Time 0 75 sec 2 De energize 16 puts pump into P C cut off Relief valve 14 is used to limit peak pres sure Time 0 5 sec 3 De energize 15 puts pump a...

Страница 7: ...s for at least the following elements ppm P Zn Ca K Ba B Si Fe Cu Pb Sn Total Acid Number TAN mg KOH Report only for vegetable and synthetic environmentally acceptable hydraulic fluids and poly oleste...

Страница 8: ...ng it the minimum displacement to maintain the de stroked position The load sense signal line is at zero pressure Valve Plate The plate between the cylinder barrel and end cover on which the cylinder...

Страница 9: ...utput Pressure psig Output Power HP 1714 Input Torque in lb X Speed rpm Input Power HP 63025 Output HP Overall Efficiency X 100 Input HP Output Flow lpm X Output Pressure bar Output Power kW 600 Input...

Страница 10: ...block needs to be assembled between the control and the end cover valve block to pick up control piston pressure Use a variable orifice valve to vary the pump s outlet pressure refer to page 3 for pr...

Страница 11: ...ssure ___________________________________ Speed rpm __________________________________ INPUT OUTPUT OUTPUT CASE CASE CASE INLET TORQUE PRESSURE FLOW FLOW TEMP PRESSURE TEMP EFFICIENCY Performance Chec...

Страница 12: ...__________________ Speed rpm __________________________________ INPUT OUTPUT OUTPUT CASE CASE CASE INLET TORQUE PRESSURE FLOW FLOW TEMP PRESSURE TEMP EFFICIENCY Performance Check During 200 Hour Test...

Страница 13: ...for vegetable and syn thetic environmentally accept able hydraulic fluids and poly olester fire resistant hydraulic fluids Test Fluid Record At Test Fluid Filling Viscosity cSt 40 C ________ Water con...

Страница 14: ...Data V PUPI TS022 E March 2009 Piston Bore Record Cylinder Block Bores NO TOP MIDDLE BOTTOM 1 2 3 4 5 6 7 8 9 Piston OD Dimensions NO TOP MIDDLE BOTTOM 1 2 3 4 5 6 7 8 9 MAX MIN PISTON PISTON TO SHOE...

Страница 15: ...UPI TS022 E March 2009 Piston Bore Record Cylinder Block Bores NO TOP MIDDLE BOTTOM 1 2 3 4 5 6 7 8 9 Piston OD Dimensions NO TOP MIDDLE BOTTOM 1 2 3 4 5 6 7 8 9 MAX MIN PISTON PISTON TO SHOE NO TO BO...

Страница 16: ...Prairie MN 55344 USA Tel 952 937 9800 Fax 952 294 7722 www eaton com hydraulics Eaton Fluid Power Group Hydraulics Business Europe Route de la Longeraie 7 1110 Morges Switzerland Tel 41 0 21 811 4600...

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