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Expert Repair and Service for Bomag Equipment

Service for Bomag Road Construction and Compaction Machinery

We provide full technical support, precise field diagnostics, and comprehensive component overhauls for Bomag machinery. The WIBAKO team of mechanics accurately identifies faults in complex hydraulic systems from Bosch Rexroth, Sauer Danfoss, or Poclain Hydraulics and effectively restores performance to Kubota, Deutz, Hatz, or Cummins engines, ensuring your road construction equipment returns to the job site as quickly as possible.

At our service headquarters in Kojszówka, we service the complete technological portfolio of the Bomag brand. We fully understand the specifics of compaction machinery – from light plate compactors and tampers to soil and asphalt rollers (including BW 120, BW 177, BW 213 series), up to specialized road construction equipment: cold planers/milling machines (e.g., BM series) and asphalt pavers.

Our key advantage is the synergy of engineering expertise with an extensive machine shop. Rebuilt multi-piston pumps, vibration hydromotors, and control valves undergo verification on a professional stationary hydraulic dynamometer under full pressure load. This procedure eliminates any hidden faults, giving you a component fully prepared for tough working conditions.

We Eliminate Power Drops and Engine Issues

Comprehensive Engine Overhauls

Is the engine in your Bomag roller or milling machine smoking, consuming excessive oil, losing efficiency, or failing during operations? At WIBAKO, we don't do half-measures. Our specialized engine mechanics department handles complete overhauls of power units installed in Bomag machinery. We restore factory performance to Deutz, Kubota, Hatz, Cummins, and Perkins engines, maintaining attention to every detail – from block alignment to injector tuning.

WIBAKO's workshop facilities allow for the efficient execution of strict repair standards. All units delivered to our service facility are stripped down to individual components, thoroughly cleaned in ultrasonic washers, and measured for material wear. We recondition cylinder heads, grind crankshafts, install new repair kits (pistons, sleeves, rings), and precisely calibrate fuel and timing systems.

 

Certainty and Repeatable Operating Parameters

WIBAKO Engine Dynamometer Test Bench

We feature our own stationary engine dyno capable of up to 500 HP, on which we meticulously test every rebuilt internal combustion engine. We leave nothing to guesswork – we precisely measure and verify the operating parameters of Deutz, Kubota, or Hatz engines, giving you full assurance that your Bomag machine will deliver on the job site.

An essential final step of a major engine overhaul is the load test. The test bench enables us to replicate extreme working conditions of a roller or paver over many hours. After assembly, every engine undergoes testing at full load capacity.

During real-time testing, we monitor:

Power generated and torque

Lubrication system pressure and coolant temperature

Exhaust gas emissions and temperature

Fuel consumption and total seal tightness of connections

Thanks to these measurements, we eliminate even the slightest deviations from standards at our workshop in Kojszówka, minimizing the risk of unexpected technical downtime on your project.

Risk-Free Support

12-Month Warranty After Engine Overhaul

We take full responsibility for the results of our work, which is why we provide a 12-month warranty on overhauled engines. We safeguard your business continuity by providing peace of mind and safe operation for Deutz, Kubota, Hatz, Cummins, and Perkins power units.

When Should You Bring Your Machine in for Service?

Symptoms of Engine Failure in Bomag Rollers and Machinery

Bomag compaction and road construction equipment operates under constant heavy load and severe vibration. Ignoring concerning symptoms in a Bomag roller, compactor, or milling machine can lead to major breakdowns and machine downtime.

Pay attention to the following signs indicating engine wear:

Unusual exhaust color - black smoke signals issues with the turbocharging or injection system; blue indicates oil entering the combustion chambers, while white may suggest a damaged head gasket and coolant presence.

Sudden power drop when vibration is engaged - the engine in a Bomag roller loses RPM and bogs down when activating the vibration system or engaging drive.

Hard starting - difficulty starting a cold unit in the morning or inability to restart a warm engine after operation.

Uneven idling and troubling noises - erratic idling and knocking sounds coming from inside the engine block.

Incorrect crankcase pressure (blow-by) - exhaust gases or oil escaping through the breather or filler cap, indicating worn piston rings and cylinder liners.

Loss of coolant or oil - needing to constantly top up fluids without visible external leaks.

 

 

Bomag Fluid Hydraulics Repair

Hydraulics Specialists Team

Within the WIBAKO structure, there is a dedicated, independent department dealing exclusively with power hydraulic systems. Our team has deep knowledge of piston pumps, drive and vibration hydromotors, and control valves from Bosch Rexroth, Sauer Danfoss, or Poclain operating in Bomag equipment.

Every component entering our workshop is disassembled, thoroughly cleaned, and measured for microscopic wear on valve plates, pistons, and housings. Thanks to our own parts inventory, we efficiently replace worn rotary parts, seals, or bearings, reducing repair times to a minimum and lowering costs compared to buying brand-new units.

Professional Diagnostics

Test Benches and Hydraulic Dyno

Accurate technical assessment is the key to successful reconditioning. We have a stationary hydraulic dynamometer and test benches that allow for precise testing of pumps, vibration hydromotors, and valves before and after repair.

Our infrastructure enables verification of operating pressure, fluid flow rate, and internal leakage under target loads. This allows us to detect deviations from OEM specifications before the part goes back into your machine. Stationary bench testing ensures proper system control and eliminates the risk of complications on the job site.

Hydraulic System Failure

When to React in Bomag Machines

Hydraulics in Bomag equipment are responsible for both smooth drive performance and generating vibration force. Continuous operation under high pressure causes pumps and hydromotors to gradually lose performance. Early repair prevents component seizure and contamination of the entire system with metal shavings.

Signs indicating hydraulic issues in Bomag machinery:

Vibration force drop after the machine warms up - rollers compact properly on cold oil, but after a short time vibration weakens or disappears completely.

Difficulty climbing slopes and slower travel - rollers and pavers struggle to move uphill, and the machine loses responsiveness in one of its drive circuits.

No steering response or jerky movements - slow operation of steering cylinders or difficulty controlling working systems.

Loud, whining hydraulic pump operation - unusual noise or grinding near the main pump caused by cavitation or seizing rotating parts.

Hydraulic oil overheating - rapid increase in fluid temperature damaging seals and accelerating component wear.

Metal particles in the filter - shavings in the hydraulic filter housing are a signal to shut down the equipment immediately and send it to service.

On-Site Repairs at the Construction Site

Mobile Service for Bomag Machinery

An unexpected breakdown on a construction site requires quick action, which is why our mobile Bomag service remains ready to dispatch. Instead of arranging heavy transport for a roller or paver to the workshop, you get expert help on-site.

WIBAKO service vehicles are equipped with professional pressure testers, diagnostic equipment, and a set of tools for repairing drive and hydraulic systems directly on site. Mechanics familiar with Bomag equipment efficiently identify faults – from leaks and valve damage to actuator issues. Thanks to a direct link to our parts warehouse, many repairs are completed on the spot.

 

Components Warehouse

Spare Parts for Bomag Machines

In the construction industry, every downtime creates a financial loss. At WIBAKO, we minimize repair turnaround times thanks to a constantly stocked inventory of parts for Bomag machinery. We store fluid hydraulics components (pumps, vibration hydromotors), engine parts, drive system components, and control valves – brand new, reconditioned, and used. Mobile service dispatches with necessary components, eliminating wait times for deliveries.

 

 

 

Does your mobile service cover the entire territory of Poland?

Yes, our experienced mobile mechanics are fully equipped and travel directly to the breakdown location or construction site anywhere in the country. Thanks to our rapid response times, we significantly reduce your equipment downtime.

Do you service older Bomag roller models?

Yes, our in-depth knowledge of older Rexroth, Sauer and Eaton hydraulic systems, as well as engines with mechanical fuel injection, is one of our major strengths. We have an extensive stock of parts for roller and compactor models that are no longer in production, allowing us to bring even machines that are over a decade old back into service.

How long does an engine overhaul usually take?

The duration of an overhaul depends on the extent of the engine damage or wear and the current availability of parts. We do our best to complete the work as quickly as possible, keeping the customer informed of the estimated completion date throughout the process. Under favourable conditions, we can overhaul an engine in as little as one week.

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