Service and repair of Kawasaki K7V hydraulic pumps
Professional diagnostics, regeneration, and test bench for K7V. Door-to-door pickup throughout Europe. Warranty up to 12 months.
- Original parts
- Dynamometer test report after repair
- Short lead times
- Technical support and replacement selection
Contact form
Typical symptoms of Kawasaki K7V pump failure
Decrease in system performance
Slow working movements, delayed response to control, difficulties in lifting.
Loss of power after oil warms up
At high oil temperatures, pressure drops and working force deteriorates.
Noise under load
Whining, squeaking, grinding - indicate wear of the piston group or cavitation.
Vibrations and pulsations
Perceptible vibrations of hoses and jerking, often correlated with damaged bearings.
Kawasaki K7V variants and subtypes - all in one place
We service the entire K7V family - single and double versions (DT), various types of regulators and controls (e.g., proportional, mechanical, electrical), with valve equipment according to OEM applications.
K7V63 / K7V63DT
- Typical applications: mini excavators and excavators 10–14 t
- Subtypes: K7V63DT, K7V63(B)...
- Most common failures: scratches on the distribution plate, wear of pistons
K7V80 / K7V80DT
- Typical applications: excavators 14–20 t
- Subtypes: K7V80DT, K7V80(B)...
- Most common failures: bearing wear, regulator leaks
K7V140 / K7V140DT
- Typical applications: excavators 20–30 t, bulldozers
- Subtypes: K7V140DT, K7V140DTP*
- Most common failures: cavitation, overheating, control valves
K7V180 / others
- Typical applications: heavy excavators, crushers, drills
- Subtypes: OEM versions for specific machine models
- Most common failures: seizure of the rotary group, pressure drops
*Nomenclature and equipment vary depending on the machine manufacturer - at WIBAKO we will select the right configuration based on the serial number and nameplate.
What we do as part of the service
Diagnostics & tests
Pressure measurement, flow tests, test bench verification.
Overhaul
Replacement of rotating elements, seals, surface finishing.
Calibration
Precise adjustment of valves and controls.
Upgrades
Selection of replacements and adaptations.
Door-to-door
Pick-up and delivery throughout Poland.
Warranty & report
Test protocol and warranty up to 12 months.
Supported machine brands
Manufacturer names for information purposes only – independent service.
What the repair process looks like
Contact
By phone or via the form.
Collection
We arrange a courier; on-site disassembly possible.
Diagnostics
Disassembly, measurements, cost estimate for approval.
Repair & test
Assembly, calibration, test bench verification.
Customer reviews
Quick execution and clear communication. - Paweł
The excavator returned to work after 2 days. - Łukasz
Professional approach from A to Z. - Damian
FAQ - frequently asked questions
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#1.Hydraulic pump repair - where to start?
To start the hydraulic pump repair process, please contact our repair coordinator, Sebastian. You can call +48 33 870 42 05 or use the contact form on our website.
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#2.How to deliver a pump for repair?
You have several options:
- Deliver it personally to our workshop.
- Send it by courier.
- After agreeing on the details, we can arrange courier transport.
If you are unable to disassemble the pump, our mobile service can come to you and perform this service. -
#3.What does the repair process look like?
- Dismantling and verification: after delivering the pump to the workshop, we dismantle it into parts and thoroughly verify any damages.
- Estimate and repair time: we prepare a detailed cost estimate and determine the expected completion time.
- Repair implementation: after your acceptance of the terms, we proceed with the repair.
- Testing and painting: after the repair is completed, we test the pump at the testing station.
- A positive test result means that the pump is ready and gets painted. -
#4.What does the offer include?
Our offer may include:
- An estimate for repairs using original parts (if available).
- An estimate for repairs using replacement parts.
- A proposal to purchase the same pump after repair from our warehouse (an alternative to repairing your pump).
- An offer to purchase a new device, if the particular model is in our warehouse. -
#5.How long does the repair of a hydraulic pump take?
Verification begins immediately after the pump is delivered.
You will receive an estimate for typical repairs within just a few hours.
The repair itself usually takes 3-5 business days. -
#6.How do we test hydraulic pumps?
After installation at the test station, the pump is subjected to loads simulating operation in a construction machine. We measure key parameters such as: pressure, flow, torque and oil temperature. We also check changes in efficiency with respect to pressure and the operation of the pump over a wide range of working temperatures. The full test lasts from 4 to 8 hours, depending on the type of pump.
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#7.What is the warranty after repair?
We perform repairs, using original parts or proven substitutes. After repair, each pump is tested, and the results are documented in the form of a readable chart. Therefore, you receive a 6-month warranty for each repair. If you have any questions about installation or operation, you can use our free phone support.
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#8.Can I cancel the repair?
Yes, you can cancel the repair after receiving the estimate without incurring any costs.
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#9.How much does hydraulic pump regeneration cost?
The price depends on the type of pump and the extent of damage. If you provide us with the type of hydraulic pump, we can give you an approximate price range, based on our previous projects.
Need a quick repair of Kawasaki K7V pumps?
Contact us - we will advise and prepare a quote within 24h.
