problem problems with propotional valves the customer has a new hydraulic system where they already changed 4 prop. valves. Cost 80 000 seK (8 000 euro, 12 000 UsD only for the valves). Costs for production loss, labor costs, management of waste oil, not calculated. solUtion eF2115v The customer chose to install Europafilter for safe operation. They also took samples of fresh new oil straight from the barrel. New oil was very dirty. result clean

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