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In re: A ll Asbestos Litigation Filed by Simmons Cooper, Circuit Court, Third Judicial District, Madison Cty., IL ; 11/17/05. In re: A ll Asbestos Litieation Filed bv Simmons CooDer. Circuit Court. Third Judicial District. Madison Ctv.. IL : Typical 5 Axle Tractor/Trailer Combination Retarding Capability at 50 mph on 3.5% Downhill Grade ^i Higher cost of o X brake maintenance. Time Period Since 1974, the brakes' share of retarding horsepower has drastically increased. It is estimated that by 1990 brake workload wiU triple when compared to 1974. The lifetime cost of brake mainte nance has risen to third place among all components. Only tires and power train maintenance are more expensive. Obviously, the trucking industry faces a serious brake maintenance cost problem. Brakes are now a high-cost (^maintenance item. Comparative Maintenance Cost & Frequency by Vehicle System (% of Total Repair Orders) 30V..------------------------------------------------------------------------------------------------------------- -- As natural retardation was reduced in the interest of fuel economy, and trucking deregulation started taking effect, operational demands on brakes went beyond what brake systems had been designed to do. Brake linings began to wear out "too soon" Brake drums started showing excessive heat checking and thermal fatigue. Tires Power Plant Brakes Brake balance a factor. Where imbalance exists, the brake doing the most work heats up and fades. This puts the workload on the next-hardest-working brake. It, in .. rturn, heats up and fades. This leads m. ^^toto a domino effect causing rapid ear of lining, and overheating and cracking of brakedrums Adapted bom SAE Technical Paper 052330: Maintenance Council (TMC) of American Trucking Association findings from data base of 20,000 diesel tractors running 3.5 billion miles. Brake Reline Cost Item Shoe & Lining (Nab) Springs Rollers Anchor Pin Hub Seal Lube Drum (1 drum per 2 relines) Labor (1.33 hrs) Reline Cost Per Brake Current Cost 45.60 2.50 2.26 1.67 8.50 3.28 32.50 37.33 133.64 From Eaton Corporation, Axle & Brake Division survey of major U.S. fleets. 3 EAB 083794