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General Safety Instructions

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HYDROKRAFT OPERATION MANUAL PVW 250+360

   E-PUIO_II001-E   April 2021   www.eaton.com

2. General Safety Instructions

Preface

We would like to thank you for choosing a product from 

Eaton Germany GmbH.

 IMPORTANT! 

Please read the information carefully before you put the 

pump into operation.
In accordance with the state of the technology, the 

information in this document can be modified at anytime 

without prior notification.
Only if you respect the present instructions, accidents and 

material damages can be avoided and operating without 

any complications can be guaranteed.
The present instructions apply solely to the pump 

and do not replace the operating instructions of the 

complete machine.
Eaton Germany GmbH does not assume any guarantee or 

liability for errors in these instructions or any subsequent 

damages in relation with the delivery

2.1 Application range

These general operating instructions only apply to Eaton 

Hydrokraft axial piston units PVW manufactured by Eaton 

Germany GmbH.

2.2 Limits of the partly completed machinery

The Eaton Hydrokraft PVW pump from Eaton Germany 

GmbH is a partly completed machinery according to 

the machinery directive 2006/42/EC article 2g and is 

intended for the assembly in or with another machine 

or equipment.
The limit of the partly completed machinery is in the main 

connections on the machine side of the aggregate.
This partly completed machinery must only be taken into 

operation once it has been ensured that the machine, in 

which the partly completed machinery is to be assembled, 

meets the expectations of the machinery directive.

2.3 Operating and environmental conditions

If the technical specification does not mention any other 

data, the following conditions apply.

 

Eaton Hydrokraft PVW pump are usable for mineral-

oil based hydraulic medium in accordance with ISO 

6743-4 (for other hydraulic medium have a look in chap. 

Hydraulic Fluids).

 

The type and model of pump is indicated on nameplate.

 

For permissible operation temperatures, viscosity etc. 

have a look to chap. Technical Data and Hydraulic Fluids.

 

Cleanliness level of hydraulic medium 

The recommended purity level according to ISO 4406: 

18/15/13 or better

 

Operating pressure: 

Please consider the maximum operating pressure in 

the technical documentation

 

Operating in an explosion risk environment: 

Eaton Hydrokraft piston pumps cannot be operated 

in an explosion risk environment, beside this has 

been explicitly stated in the assembly notice

.

 

Water-imperilling substances: 

Hydraulic medium based on mineral oil are part of 

the products susceptible to pollute the water. Their 

taking into operation represents high danger for 

human-beings and the environment.

 

Both the respective legal or otherwise binding regu-

lations of the European and national legislation must 

be observed, as well as all rules for the prevention of 

accidents and for environmental protection applicable 

in the country of operation.

2.4 Intended use 

Eaton Hydrokraft axial piston pumps are developed and 

manufactured in accordance with the state of technology 

and the safety-related directives of MD 2006/42/EC. The 

pump is intended to be operated only according to the 

technical specifications.
During operation, endangering of users or third parties 

or damaging of hydraulic aggregates and other elements 

might be possible, especially when the assembly instruc-

tions are disregarded. Any use other than specified 

applies to be unintended.
The present assembly notice lapses if modifications, 

which have not been agreed by the manufacturer, are 

performed on the axial piston pumps.

 WARNING! 

In case of non-intended use and the damages occurred 

through it, no liability or material claim applies (explicit 

in contractual documents).

2.5 General safety advice

 

The Eaton Hydrokraft axial piston pump is manufactured 

and verified according to the state of technology. Even 

if all risks are identified and all measures to reduce the 

probability of damage-occurrence have been taken in 

the risk evaluation, remaining risks (non-apparent) can 

never be completely excluded.

 

According to amendment II B of the machinery direc-

tive 2006/42/EC, the partly completed machinery can 

only be taken into operation, if the machine, in which it 

is assembled, meets the directives. 

 

When assembling, you must also consider 

dangers stipulated in the instruction manual of the 

complete machine.

 

Any modification of the partly completed machinery can 

present important changes in the sense of machinery 

directive 2006/42/EC. Supplementary safety require-

ments must be considered. For this reason, modifica-

tions should always be approved by the manufacturer.

Summary of Contents for Hydrokraft PVW 250

Page 1: ...Hydrokraft Operation Manual PVW 250 360...

Page 2: ...cal installation 20 5 9 Case drain and Case pressure 21 5 10 Suction line 22 5 11 Atmospheric pressure 22 5 12 Acceleration of oil in suction line 22 5 13 Shaft coupling immersed pump 23 5 14 Installa...

Page 3: ...ION MANUAL PVW 250 360 E PUIO_II001 E April 2021 www eaton com 7 TROUBLESHOOTING 30 8 MAINTENANCE AND REPAIR 33 9 EXTENSION AND CONVERTING 34 10 DISASSEMBLY AND REPLACEMENT 34 11 DECOMMISSIONING 34 12...

Page 4: ...Please consider the maximum operating pressure in the technical documentation Operating in an explosion risk environment Eaton Hydrokraft piston pumps cannot be operated in an explosion risk environme...

Page 5: ...ed Cut the energy supply Secure against restart Relieve pressure from the system including all hydraulic accumulators kneel or prop up raised loads relieve rest energy Make sure the system is at zero...

Page 6: ...ursting elements Can be consequence of Overcharge of the components e g following too high pressure or pressure peaks Old material Inadequate elements 2 10 Noise emission Noise emission is not only ca...

Page 7: ...epending on the swashplate angular position the displacement of the pump increases or decreases i Control Control Piston Swash Angle Sensor Indicator Thru Drive Option Valve Plate Cylinder Block Swash...

Page 8: ...W 250 360 E PUIO_II001 E April 2021 www eaton com Typical section of open loop PVW pump Definition of shaft direction of rotation swash angle direction and actuator piston movement Optically indicated...

Page 9: ...limited mechanically to between 50 and 100 by a screw A DF controlled pump can be combined with following options Pilot operated by proportional valve with el card or with on board electronis Pilot op...

Page 10: ...control main stage 20 bar approx and power loss of the pump Maximum pump flow can be limited mechanically to between 50 and 100 by a screw A LR controlled pump can be combined with all pressure limit...

Page 11: ...tely 1 of end value The SP control can also be combined with hydromechanical relief valves for pressure and or power control Maximum pump flow can be limited mechanically to between 50 and 100 by a sc...

Page 12: ...combined with hydromechanical relief valves for pressure and or power control Maximum pump flow can be limited mechanically to between 50 and 100 by a screw A B System port L1 L2 Drain port L3 Vent p...

Page 13: ...mately 1 of end value ST controlled pumps starts at max displacement They can work with internal pilot oil supply only but require a min operation pressure of 25 bar for operation Below this min press...

Page 14: ...epend on the ratio selected and on the fixed speed of the servo motor with the result that once the control is specified and built response time are not variable in operation Explosion Protection vers...

Page 15: ...ecific unit if different to Vg max Allowed kinematic viscosity range for continuous operation Workorder Serial Number V0ABCD ABCD consecutively number Type Short form modelcode of pump Manufacturing d...

Page 16: ...pressure n 1200 rev min n 1500 rev min n 1800 rev min pcase bar 3 2 2 6 2 0 2 8 2 2 1 6 2 8 2 2 1 6 2 35 1 85 1 35 2 1 1 7 Drive PF VW 130 180 PF VW 250 PF VW 360 PF VW 500 PF VW 750 Driving torque pN...

Page 17: ...sure overpressure pcase psi n 1200 rev min 46 40 40 34 30 n 1500 rev min 38 32 32 27 25 n 1800 rev min 29 23 23 20 Drive PF VW 130 180 PF VW 250 PF VW 360 PF VW 500 PF VW 750 Driving torque pN 5075 ps...

Page 18: ...e drive shaft Never use hammer or similar tools to mount coupling on drive shaft Ensure that lifting device fork lift truck or similar has adequate lifting capacity Ensure that lifting straps chains o...

Page 19: ...ons with extended protection for inner parts preliminary note pumps should be stored horizontally It is recommended to rotate pumps manually every 6 months for some turns and fill spray some corrosion...

Page 20: ...lic components and the entire machine installation Please consider the control and replacing intervals of the filter In case of a later installation of supplementary filters ensure an arrangement whic...

Page 21: ...nded No side load must be applied to the drive shaft of Hydrokraft pumps and motors In some cases limited side loads are permissible under specific conditions Contact Hydrokraft technical support for...

Page 22: ...ynamic flow impacts If a collecting line is used a suitable diameter must be chosen Depending on length of drain line flow velocity should not exceed 1 m s at max drain flow Recommeded drain line size...

Page 23: ...draw fluid across them further lowers the inlet pressure 5 11 Atmospheric pressure The sensitivity of the pumps to inlet conditions is even more relevant at greater altitudes and lower atmospheric pre...

Page 24: ...pposite side of the baffle Take care that inlet pressure at port L3 does not exceed 16 bar otherwise permissible values of shaft seal pressure 2 2 bar overpressure at 1500 rpm might be exceeded and sh...

Page 25: ...ol requires no pilot oil flow eg ES or manual Flow controls so that pilot flow cannot be used for case bearing flushing Active Bearing Flushing should be no less than 1 of maximum pump flow Take care...

Page 26: ...he indications of the manufacturer in order to attempt a steady purity level Unless otherwise specified the rinsing of the assembled installation must be carried out in accordance with ISO 23309 Check...

Page 27: ...d the rinsing of the assembled installation must be carried out in accordance with ISO 23309 6 7 Fluid cleanliness Hydrokraft pumps are rated in anti wear petroleum fluids with a contamination level o...

Page 28: ...ous inverse rotation of pump will cause cavita tion and will lift the piston slipper off the swash plate Shoulder of piston shoe will be pushed against retaining ring causing at first increasing clear...

Page 29: ...ing torques of tie rods Size 130 180 280 Nm 250 360 280 Nm 500 750 600 Nm 6 14 5 Metal plugs male stud per ISO 1179 BSPP with elastomeric profile sealing thread friction coefficients ges 0 125 Size AL...

Page 30: ...5 Other installation torque specification 6 15 1 Purpose Below references provide tables of recommended tightening torque for metal plugs fittings ISO metric socket head cap screws SHCS valves etc rel...

Page 31: ...entrainment 4 Reservoir air vent plugged 5 Pump rotation or speed incorrect 6 Oil viscosity too high 7 Oil viscosity too low 8 Filter or strainer too dirty or filter too small 9 Pump out of line with...

Page 32: ...l type are as per fluid recommendations See chp 3 4 Technical data 6 5 Hydraulic fluids 7 7 Filter or strainer too dirty or filter too small Filter and strainer must be kept clean enough to permit ade...

Page 33: ...drain lines 7 17 Reservoir too small may vortex or fail to provide adequate cooling Replace with larger reservoir or install cooler 7 18 Valve deposits Check valve in regard of function and cleanlines...

Page 34: ...en 3000h and 16000h Depending on operation conditions The life time of the Hydrokraft pump is limited by service life of the build in bearings Life time of bearings can be requested based on load cycl...

Page 35: ...essure free Make sure the temperature of the Hydrokraft pump is cold enough to touch safe Use a collector to collect resigning hydraulic fluid IMPORTANT Save the environment Remove all electric cable...

Page 36: ...ph 16 D 61273 Wehrheim Tel 49 0 6081 103 302 Fax 49 0 6081 103 342 2021 Eaton All Rights Reserved Publication No E PUIO II001 E April 2021 Eaton is a registered trademark All trademarks are property o...

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