Engines engine for the first time, follow the instructions in Chap- ter 2 of the MBE900 Engine Operator’s Manual. Engine Operation General Information Caterpillar Operating vehicles with diesel engines in areas where there are concentrated flammable vapors (such as die- sel, gasoline, or propane fumes) can create a hazard- ous situation. These vapors can be drawn into the en- gine through the air intake, and cause engine overspeed. Be especially cautious of low-lying or closed-in areas, and always check for signs that flam- mable vapors may be present. Every Caterpillar engine must pass a full-load operation test on a dynamometer before shipment, eliminating the need for a break-in period.
Only an initial operational check is necessary. Cummins Cummins electronic engines are run on a dynamometer before being shipped from the factory. They do not re- quire a break-in period. DANGER NOTE: Special break-in oils are not recommended for new or rebuilt Cummins engines. Don’t operate the engine in an area where flam- mable vapors such as gasoline or diesel fumes are present. Shut down the engine when in an area where flammable liquids or gases are being handled. Failure to observe these precautions could result in serious injury or death. Detroit Diesel Detroit Diesel engines can be put to work upon delivery without having to follow a formal break-in schedule.
The engine has been "run-in" on a factory dynamometer during performance and quality assurance tests prior to shipment. All diesel engines have been built to comply with the requirements of the Federal (U.S.) Clean Air Act. Once an engine is placed in service, the responsibility for meeting both state and local regulations is with the owner/operator. Good operating practices, regular main- tenance, and correct adjustments are factors which will help to stay within the regulations. 4.8