WASHER 9D4513 - Caterpillar

Engine exhaust contains products of combustion which may be harmful to your health. Always start and operate the engine in a well ventilated area and, if in an enclosed area, vent the exhaust to the outside.
To obtain maximum service life for your engine, make a thorough inspection before starting the engine. Perform the required daily maintenance and other periodic maintenance before starting the engine. Perform the walk-around inspection as described in this Operation and Maintenance Manual, "Walk-Around Inspection" topic. Look for items such as oil or coolant leaks, loose bolts and trash buildup. Remove any trash. Arrange for repairs, as needed.
For any type of leak (coolant, lube, or fuel) clean up the fluid. If leaking is observed, find the source and correct the leak. If leaking is suspected, check the fluid levels more often than recommended until the leak is found or fixed, or until the suspicion of a leak is proved to be unwarranted.