Eaton Vickers PVE12 Скачать руководство пользователя

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M-2854-S

Released 8/1/90

Overhaul Manual

PVE Variable Pump
12–21 USgpm capacity at 1800 rpm

Vickers

Piston

Pumps

Содержание Vickers PVE12

Страница 1: ...M 2854 S Released 8 1 90 Overhaul Manual PVE Variable Pump 12 21 USgpm capacity at 1800 rpm Vickers Piston Pumps...

Страница 2: ...ding Fluid to the System 14 D Adjustments 14 E Lubrication 14 F Replacement Parts 16 G Troubleshooting 17 VI Overhaul 18 A General 18 B Disassembly 18 C Inspection Repair and Replacement 18 D Assembly...

Страница 3: ...3 Table 2 Model Code Breakdown 4 Flow Rating USgpm 1800 rpm 8 7 9 10 11 6 Noise Level Rating Blank Standard Unit Q Industrial Quieter 1800 rpm 207 bar 3000 psi Pump Variable Displacement Inline Piston...

Страница 4: ...350 psid with pressure compensation PVE 19 21 5 Pump Design 6 7 1 3 6 1 2 2 3 Table 2 Model Code Breakdown Con t 4 Flow Rating USgpm 1800 rpm 19 19 USgpm 21 21 USgpm Pump Variable Displacement Inline...

Страница 5: ...l Views of the PVE Pumps Drive Shaft PVE19 Section View PVE12 Section View Housing Rotating Group Tapered Roller Bearing Yoke Wafer Plate Compensator Yoke Housing Compensator Valve Block Shaft Seal Sh...

Страница 6: ...ternal circuit to prevent excessive pressure build up at the pump 4 Compensator CVP Load Sensing Pressure Limiting Type The CVP control is a combination of the standard flat cut off compensator C and...

Страница 7: ...n At null flow to the yoke stroking piston stops Movement of the yoke will stop and the flow will stabilize at a reduce value If the load were to continue to increase the pump flow will reduce to zero...

Страница 8: ...a valve varies with pressure drop as well as with valve spool position Pumps incorporating the load sensing feature have a constant flow characteristic Flow is constant regardless of the load pressure...

Страница 9: ...drop across the external valve orifice When pressure reaches nP the compensator spool will null At this time the stroking piston will remain stable until the external valve spool orifice is changed S...

Страница 10: ...sensing portion of the compensator adjusts pump outlet flow to compensate for leakage while providing a constant flow through the valve spool orifice The pump outlet pressure continues to increase un...

Страница 11: ...ng Pressure Limiting Compensator CVP CVPC CVPD Compensator Spring Drain Compensator Spool Yoke Stroking Piston Rotating Group Yoke Spring Inlet Outlet Actuator Load External Valve Spool Orifice Load S...

Страница 12: ...turbulence and friction of oil flow Tubing must not be bent too sharply The recommended radius for bends is three times the inside diameter of the tube E Hydraulic Fluid Recommendations General Data...

Страница 13: ...in the reservoir Air in the fluid causes a noise similar to cavitation F Overload Protection Relief valves limit pressure in the system to a prescribed maximum and protect components from excessive pr...

Страница 14: ...results in a higher pres sure drop This can force particles through the filter which would ordinarily be trapped or can cause the by pass to open resulting in a partial or complete loss of filtration...

Страница 15: ...bearing installation Drive shaft bearing removal 4 6 9 1 1 2 heavy wall tubing 005 005 Description A B C Valve Block 1 675 1 300 1 250 Housing 2 125 1 625 1 500 Figure 10 Bearing Race Removal Tools 1...

Страница 16: ...ess ring on end of tubing 0 125 2 500 1 439 1 440 0 250 6 50 1 500 375 005 F Replacement Parts Reliable operation throughout the specified operating range is assured only if genuine manufacturer s par...

Страница 17: ...m to the touch and noise disappears Pump overheating Internal leakage Heat exchanger not functioning Fluid level low If established that excessive internal leakage is evident return vehicle to mainten...

Страница 18: ...sket 2 and O Ring 3 from body 11 of compensator S A c Remove lockwire 4 plug 5 and O Ring 7 6 and 7 on the CV compensator d Remove spring 8 seat 9 and spool 10 from the compensator body 11 and set asi...

Страница 19: ...65 Valve 1 66 Spring 1 31 Pin 2 32 Bearing 1 26 Valve Block 1 28 Valve Plate 1 30 Gasket 1 Item Description Qty 27 Housing 1 73 Piston Rod 1 72 Piston 1 43 Piston Shoe S A 9 42 Shoe Plate 1 41 Shperi...

Страница 20: ...Bearing Spacer Kit Cylinder Block Retaining Ring Washer notched Spring Washer pin Pin Pin Retainer Spherical Washer Shoe Plate Piston and Shoe Subassembly Retaining Ring Shaft Seal 46 47 48 49 50 51 5...

Страница 21: ...21 4 5 6 7 8 9 10 1 24 3 2 72 56 57 58 59 60 61 62 30 25 55 54 53 52 51 50 49 46 47 48 44 45 27 55 54 53 52 51 50 49 Figure 13 PVE19 21 Exploded View...

Страница 22: ...22 63 9 10 8 7 5 12 1 18 17 16 15 14 13 4 11 19 23 24 3 2 21 20 22 69 68 67 71 70 73 26 29 31 66 43 42 41 40 39 34 38 37 36 35 33 28 32 65 64...

Страница 23: ...0 19 and spool 18 Make certain the spool does not bind or hang up in the body bore b Assemble parts 17 through 15 together Insert the assembled parts seat first into compensator body 11 Assemble with...

Страница 24: ...develop burrs Remove all burrs with an India stone 11 Inspect the face of the wafer plate 28 for excessive wear scratches and possible fracture If the wafer plate is fractured make sure the new plate...

Страница 25: ...For units without a shaft seal this step will be used to remove a defective drive shaft only In addition references to shaft seal installation and removal must be omitted a Install a nine inch piece o...

Страница 26: ...ed The same procedure applies to yoke 56 and its associated bearings 1 If the shaft bearing 61 requires replacement install a new bearing race 62 into housing 27 Use tool shown in Figure 11 to press b...

Страница 27: ...ct to pintle face e Install the correct shims 51 and cross torque pintle cover 50 screws to 175 185 lbf in NOTE The yoke 56 will be stiff but should be loose enough to be moved by hand approximately 2...

Страница 28: ...s in the O Ring groove Use an India stone to remove burrs If threads are defective replace the plug 3 Inspect compensator piston rod 73 for nicks and burrs Remove burrs and sharp edges with an India s...

Страница 29: ...r final assembly L Final Assembly of the PVE Series Pump NOTE Lubricate all moving parts of the piston pump with system fluid to facilitate assembly and provide initial lubrication Pour system fluid l...

Страница 30: ...Close globe valve one V1 and readjust load valve one 1 to system pressure shown in Table 5 Read Psig at gauge P1 3 Check delivery loss and case leakage as follows See Table 5 4 Open globe valve one V1...

Страница 31: ...re should be approximately 250 PSI at P1 NOTE The CG compensator is preset at the factory at 250 350 PSI When a hydraulic line is attached between the CG compensator and remote control valve back pres...

Страница 32: ...uirements at full stroke and 1200 RPM Model Code Delivery Loss Table 8 Delivery loss and maximum case leakage Max Case Leakage System Pressure Psig 3000 2700 3000 2700 1 15 USgpm 3000 1 12 USgpm PVE12...

Страница 33: ...0 psi 4 USgpm 20 30 20 30 20 30 160 psi 360 psi 350 psi PVE12 C VPC24 PVE12 C VP11 3000 3000 3000 Yes Yes 250 psi Max 900 psi Max 500 psi Max 20 30 600 psi 20 30 160 psi 350 psi 25 psi 4 USgpm 600 psi...

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