By the nature of their design, screens, magnetic plugs and filter media house clues as to the condition of engine, transmission and hydraulic components.
Acting on these early warning signs can help eliminate expensive component failure.
Filter inspection, in conjunction with oil analysis such as KOWA (Komatsu Oil Wear Analysis), should play a vital role in all preventative maintenance programs.
Basic filter cutting & inspection procedures
· Visually check the filter andor filter canister for cracks and leaks.
· Inspect the filter`s bypass valve to ensure it is operating correctly.
· Drain the filter of its contents (dispose of this liquid in the correct manner in accordance with local environmental guidelines).
· Firmly hold the filter in an upright position (head on top) taking care not to crush or damage the housing.
· Using a specially designed filter cutting tool (for example, Komatsu part number 3310587S ) carefully cut off the top of the filter.
· Remove the element from the filter housing and pour the contents of the housing onto some clean absorbent paper.
· Inspect the absorbent paper for traces of foreign particles.
· Inspect the filter medium for signs of damage and blockages. Blockages force the bypass valve into operation, allowing unfiltered fluid to travel to and enter major components.
· Remove the filter medium from the filter by cutting between 2030 mm (about one inch) from the end plate and cut the medium into small pieces.
· Carefully inspect the filter medium for traces of metal contaminants.
If you do find such traces, to ensure correct identification and further analysis of these contaminants, contact your nearest Komatsu Australia branch or service centre.