OilGear A2 Series Service Instructions Manual Download Page 24 | Manualshive

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© 2019 THE OILGEAR COMPANY - ALL RIGHTS RESERVED

Bulletin 948034A

24

Bulletin 948034A

PUMP SERVICE MANUAL

Figure 12. Cross Section and Exploded Parts Drawing for PVG 180 (520147-181 sheet 1 of 5)

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Summary of Contents for A2 Series

Page 1: ...007 Piping Information Bulletin 90011 Installation of Vertically Mounted Axial Piston Units Bulletin 90014 PVG Open Loop Pumps Sales Bulletin 47019 K Pump Control Instructions Series A1 P 1NN Single P...

Page 2: ...tion and Installation 6 7 Principle of Operation 8 9 Specifications 10 Troubleshooting 11 Testing and Adjusting Disassembly 12 13 Rotating Group Inspection 14 16 Assembly 16 18 PVG Pump Torques Number...

Page 3: ...hrough the Oilgear Company Or visit our website www oilgear com Please contact us if you have any questions regarding the information in this instruction bulletin The cleanliness of working on this pu...

Page 4: ...hose failure This can cause serious injury Please contact Oilgear for assistance when required Hydraulic cylinders can be holding a function in a certain position when the pump is OFF An example of th...

Page 5: ...pment unless they are fully supported or blocked Failure to follow this procedure can result in serious injury or death Any Oilgear pump safety decals must be replaced anytime they are damaged missing...

Page 6: ...ach drain line must be a separate line unrestricted full sized and connected directly to the reservoir below the lowest fluid level Make provisions for opening this line without draining siphoning res...

Page 7: ...emove case drain line and fill pump case with hydraulic fluid 3 Turn drive shaft a few times by hand with a spanner wrench to make sure parts rotate Torque to turn drive shaft should be 9 to 24 ft lb...

Page 8: ...dividual piston bores are connected alternately to the crescent shaped port A and port B in the valve plate While connected to the suction port A each piston moves outward OUT drawing fluid from port...

Page 9: ...ivery Figure 5 Neutral position results when the control centers the swashblock The swashblock angle G is now zero and swashblock face is parallel to the cylinder face There is no inward or outward mo...

Page 10: ...ive Table 2 Nominal Dimensions without controls Refer to installation drawings for more detailed dimensions and port configurations NOTE Unit THEORETICAL MAXIMUM DISPLACEMENT RATED CONTINUOUS PRESSURE...

Page 11: ...e Loss of Pressure Worn piston pump Inspect components Replace Worn or grooved cylinder barrel 101 and or valve plate 401 mating surfaces Worn piston shoe assemblies 102 or piston bores in cylinder Fa...

Page 12: ...drain flow to fill a known size container and calculate the flow rate Additional leakage indicates wear but does not become critical until it impairs performance DISASSEMBLY The cleanliness of workin...

Page 13: ...sary to completely take apart all assemblies CONTROL GROUP Refer to the reference material for the information which applies to the control your pump is equipped with Some force is required to remove...

Page 14: ...or compressed air servicing or maintaining the hydraulic system or the Oilgear pump Wear correct protective gear safety glasses gloves and safety shoes Serious injury can result without proper protec...

Page 15: ...brication Check the mating surface of swashblock for cracks or excessive wear The swashblock movement in the saddle bearings must be smooth Be sure to stone lightly Any excessive stoning will remove t...

Page 16: ...the disassembly procedures in reverse for re assembling the pump During assembly install new seals and O rings Apply a thin film of CLEAN grease or hydraulic fluid to sealing components to ease assem...

Page 17: ...2019 THE OILGEAR COMPANY ALL RIGHTS RESERVED Bulletin 948034A 17 Bulletin 948034A PUMP SERVICE MANUAL I 10 Hydrodynamic Bearing Seam Orientation 11 Hydrodynamic Bearing Installation...

Page 18: ...on a bench with the open end facing up 2 Install new O rings 1013 and 1261 on the housing 3 Assemble the valve plate 401 onto the housing 001 making sure the screw holes are aligned 4 Hand tighten th...

Page 19: ...E OILGEAR COMPANY ALL RIGHTS RESERVED Bulletin 948034A 19 Bulletin 948034A PUMP SERVICE MANUAL Table 3 PVG Pump Torques Fastener or Plug Item Number Description Head Type Size Tightening Torque 225 3...

Page 20: ...em number Specify type of hydraulic fluid to assure seal and packing compatibility Parts drawings may not be identical to Oilgear drawings referenced PARTS LIST drawings on pages 23 through 26 NOTE It...

Page 21: ...49 1 049 70 049 80 1145 1 145 70 145 80 1153 1 153 70 153 80 1155 1 155 70 155 80 1158 1 158 70 158 80 1159 1 159 70 159 80 1163 1 163 70 163 80 1228 1 228 70 228 80 1253 1 253 70 253 80 1261 1 261 70...

Page 22: ...2 603 1013 1261 1903 2 1904 RH CW Thru Shaft K520208 618 401 403 4 601 602 603 1013 1261 1902 1903 1904 Buna Seals LH CCW Thru Shaft K520208 519 401 403 4 602 2 603 1013 1261 1903 2 1904 RH CW Thru S...

Page 23: ...ter Kits Viton Seals K319076 105 A1 A2 Buna Seals K319076 205 A1 A2 EPR Seals K319076 305 A1 A2 Viton Seals K319076 106 A1 A2 Buna Seals K319076 206 A1 A2 EPR Seals K319076 306 A1 A2 Viton Seals K3190...

Page 24: ...2019 THE OILGEAR COMPANY ALL RIGHTS RESERVED Bulletin 948034A 24 Bulletin 948034A PUMP SERVICE MANUAL Figure 12 Cross Section and Exploded Parts Drawing for PVG 180 520147 181 sheet 1 of 5...

Page 25: ...2019 THE OILGEAR COMPANY ALL RIGHTS RESERVED Bulletin 948034A 25 Bulletin 948034A PUMP SERVICE MANUAL Figure 13 Exploded Parts Drawing for PVG 180 520147 181 sheet 2 of 5...

Page 26: ...2019 THE OILGEAR COMPANY ALL RIGHTS RESERVED Bulletin 948034A 26 Bulletin 948034A PUMP SERVICE MANUAL Figure 14 Exploded Parts Drawing for PVG 180 520147 181 sheet 3 of 5...

Page 27: ...2019 THE OILGEAR COMPANY ALL RIGHTS RESERVED Bulletin 948034A 27 Bulletin 948034A PUMP SERVICE MANUAL Figure 15 Cross Section and Exploded Parts Drawing for PVG 180 520147 181 sheet 4 of 5...

Page 28: ...ILABILITY Prepare for your future needs by stocking Oilgear original factory parts Having the correct parts and necessary skills in plant enables you to minimize down time Oilgear has developed parts...

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