Heavy Duty Trucking, February 2018
e appear to be learning from our mistakes in aftertreatment system maintenance but we still have a way to go before were at peace with the things Strictly speaking diesel particulate filters diesel oxidation catalysts selective catalytic reduction systems and their associated hardware have proven pretty reliable over time Its not so much the basic hardware that stymies Aftertreatment system maintenance is easier when you stay ahead of the demand By Jim Park Equipment Editor jpark@ truckinginfo com HDT FEBRUARY 2018 48 WWW TRUCKINGINFO COM W GET THE SOOT OUT maintenance personnel fleet managers and drivers but the difficulty in predicting when maintenance is required or when upstream problems will cause downstream failures The biggest problem I see is theres just not enough attention paid to the preventive side of aftertreatment maintenance says transportation fleet maintenance consultant Bruce Stockton Fleets tend to wait until a light comes on or the system throws a code By the time the light comes on the problem could be such that the truck could be down for two or three days at a remote location If fleets stayed ahead of the problems maintenance on the system could be done along with the regular PM work in a day Stockton says if some preventive measures were put in place at some prescribed time or mileage much grief and downtime could be prevented A lot of fleets seem to think that because the aftertreatment warranty goes out to 500000 miles or more theyll hope that nothing goes wrong in the interim he says
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