DPF Filter Cleaning in a Liebherr A924 Wheeled Excavator
We carried out professional DPF filter cleaning in a Liebherr A924 wheeled excavator. Comprehensive exhaust system diagnostics, filter regeneration, and restoration of the construction machine’s full performance.
- Original parts
- Dynamometer test report after repair
- Short lead times
- Technical support and replacement selection
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Symptoms of a Clogged DPF Filter in the Liebherr A924 Excavator
Engine Power Loss
The machine responded more slowly under load, and the operator noticed a clear drop in performance during operation.
DPF Error Messages
Warnings related to the exhaust aftertreatment system and high back pressure appeared on the control panel.
Increased Fuel Consumption
The clogged DPF filter caused inefficient engine operation and a noticeable increase in fuel consumption during daily use.
Machine Limp Mode
The control unit limited engine power to protect the engine and exhaust system from damage.
DPF Filter Cleaning in the Liebherr A924 Wheeled Excavator
The Liebherr A924 wheeled excavator arrived at the WIBAKO service center with a clogged DPF filter and reduced operating performance. The machine was mainly used for earthmoving and loading operations, where the exhaust aftertreatment system was heavily utilized.
During diagnostics, our mechanics confirmed high exhaust back pressure and significant contamination of the diesel particulate filter. In such cases, continued machine operation may lead to turbocharger damage, increased fuel consumption, and the engine entering limp mode.
The Liebherr A924 is a popular wheeled excavator used for roadworks, infrastructure construction, and municipal projects. Machines of this type often operate under variable loads and interrupted work cycles, which promotes soot accumulation in the DPF filter.
After removing the DPF filter, we performed a detailed inspection of its technical condition. We then carried out a professional cleaning and regeneration process, removing accumulated soot and ash. This restored proper exhaust gas flow and correct exhaust system operating parameters.
After the cleaning process was completed, the filter was reinstalled in the machine and the system underwent inspection tests. The parameters returned to nominal values, and the excavator regained full performance and working power.
At WIBAKO, we provide DPF cleaning and regeneration services for excavators, loaders, bulldozers, dump trucks, and other construction machinery from brands such as Liebherr, Caterpillar, Volvo, Komatsu, JCB, and Doosan. We also offer comprehensive exhaust system diagnostics and diesel engine servicing.
How Does DPF Regeneration Work at WIBAKO?
Diagnostics
We check engine operating parameters, exhaust back pressure, and the contamination level of the DPF filter.
Filter Removal
We safely remove the DPF filter from the construction machine and perform a technical inspection.
Professional Cleaning
We remove soot and ash from inside the filter, restoring full flow capacity.
Testing and Reinstallation
After regeneration, we carry out inspection tests and reinstall the filter back into the machine.
Customer Reviews
The DPF was cleaned quickly, and the machine returned to the construction site without any issues. - Damian
They thoroughly checked the exhaust system and solved the DPF filter issue. - Krzysztof
The regeneration was completed efficiently, with good communication and professional service. - Michał
DPF Cleaning for Construction Machinery
WIBAKO provides professional DPF cleaning and regeneration services for excavators, loaders, and other construction machinery. Contact us and restore your machine’s full performance.
