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Walker AIRSEP air filtration systems are engineered to reduce oil mist and noxious gases from turbocharged diesel engines, especially in marine applications. Proper maintenance of AIRSEP units protects engine performance, reduces oil consumption, and helps maintain a safer, cleaner engine room. Below are concise, practical guides and video walk-throughs covering the most common service tasks: replacing coalescer filters, cleaning air elements, identifying parts for ordering, and inspecting oil drains.
How to replace the coalescer filters & service your CCE AIRSEP – Service Video #101
This service video demonstrates the step-by-step procedure for replacing the internal coalescer (oil-mist) filter pack inside Walker CCE AIRSEP closed crankcase ventilation systems. The coalescer is the primary component that captures oil droplets and separates them from crankcase gases before venting or routing back to the engine. The video covers safe preparation, removing the AIRSEP housing, extracting the old coalescer elements, and installing new filter packs. It also highlights inspection points—seals, gaskets, and housing surfaces—to ensure a proper seal and long-term reliability.
Key takeaways: shut down and cool the engine before service, note the orientation of elements during removal, replace any damaged seals, and use genuine Walker replacement coalescer packs for correct fit and performance. Regular replacement intervals depend on operating hours and conditions; inspect the AIRSEP whenever you service engine oil or if you notice increased oil consumption or blow-by.
How to clean your Walker AIRSEP air filter – Service Video #102
This video shows the proper method to clean the external air filter element used on many Walker AIRSEP assemblies. Cleaning, rather than replacing, can extend the life of washable elements and save on parts cost. The demonstration walks through removing the element, using the recommended Walker AIRSEP cleaning kit, and rinsing and drying techniques to avoid damage to the filter media.
Best practices included: always follow the manufacturer’s cleaning kit instructions, avoid harsh chemicals or high-pressure washing that can deform or damage the media, and inspect the element for tears or deterioration. If the element shows any structural damage, replace it immediately. Properly serviced air elements improve airflow and extend the life of the internal coalescer and engine breathers.
Identifying your Walker AIRSEP air filter for easy ordering – Service Video #103
Ordering the correct replacement parts begins with accurate identification. This video provides practical tips to help you identify the model and filter type used in older, traditional Walker AIRSEP units as well as newer CCE designs. It covers where to find model numbers, visual cues to distinguish element types, and points to check that ensure you select compatible replacements.
When identifying parts, document the AIRSEP model, serial number if available, and any stamped or printed part numbers from the existing element. Taking clear photos of the unit and elements can simplify ordering and avoid mix-ups. If in doubt, compare measurements and mounting interfaces rather than relying on visual similarity alone.
Inspecting the Walker AIRSEP oil drain – Service Video #104
Proper oil drain function is essential for an AIRSEP to return captured oil to the engine sump or a collection point without leakage. This short video walks through inspection of the drain path, fittings, and any associated check valves or hoses. The demonstration shows how to check for blockages, confirm proper routing, and detect signs of wear or corrosion that can cause leaks.
Regular inspection of the drain line and connections will prevent accumulation of oil in the AIRSEP housing and avoid potential overflow or engine-room contamination. If you notice persistent oil accumulation inside the AIRSEP or oil appearing where it shouldn’t, investigate the coalescer condition and drain assembly as part of a comprehensive inspection.
Practical maintenance tips: always allow the engine and AIRSEP housing to cool before servicing, wear appropriate gloves and eye protection, keep replacement parts and cleaning kits from reputable sources, and record service dates and findings. Consistent, proper maintenance of Walker AIRSEP filters and components keeps diesel engines running cleaner and helps prevent performance issues related to crankcase ventilation.