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Eaton Hydrokraft PVW 250, Руководство по эксплуатации

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Troubleshooting

30

HYDROKRAFT OPERATION MANUAL PVW 250+360

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

7. Troubleshooting

Troubleshooting chart

Find the 

SYMPTOM

 being experienced, then read down that column. The 

<

 arrows will point out the most likely 

CAUSES

. 

The following pages list repairs that my eliminate each of the numbered 

CAUSES

.

SYMPTOM

CAUSE

Pump 

making 

noise

No 

system 

pressure

Breakage 

of parts 

inside 

pump 

housing

External 

oil 

leakage 

around 

the 

pump

Pump 

not 

pumping 

Excessive 

wear

Heating 

caused by 

power unit 

(reservoir, 

pump, relief 

valves, 

coolers)

Heating 

because 

of 

system

Erratic 

action

Leakage

1. Restricted inlet

<

<

<

<

<

2. Air leaks

<

<

<

3. Air 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 

driving motor

<

<

<

10.  Pump head too loose 

or faulty head gasket

<

<

<

11. Pump head too tight

<

12. Stuck pump vane

<

<

<

13. Cavitation

<

<

<

14. Pump malfunction

<

<

<

<

<

<

<

<

<

15.  Relief valve not 

functioning properly 

<

<

<

<

<

<

16.  Incorrect control valve 

setting

<

17.  Internal leakage in 

valves, cylinders, or 

pumps

<

<

<

<

18.  Excessive pressure 

above maximum pump 

rating

<

<

<

19.  Low fluid level in 

reservoir

<

<

<

<

20. Dirt in pump

<

<

<

21.  Packing worn or 

damaged

<

<

22.  Fluid contaminated 

with dirt or water

<

<

<

23. Oil cooler clogged

<

<

24. Restricted lines

<

<

25. Reservoir too small

<

<

<

<

<

26. Valve deposits

<

27. Pilot pressure too low

<

28.  Electrical solenoid 

problems

<

29. Loosened fittings

<

30.  Dried or worn seals or 

O-rings 

<

<

<

31. Line breakage 

<

<

<

Содержание Hydrokraft PVW 250

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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