CORE AS 1275537 - Caterpillar

You must read and understand the warnings and instructions contained in the Safety section of this manual before performing any operation or maintenance procedures.The overhaul interval in the Maintenance Schedules designate Caterpillar's recommendation for performing an overhaul.The best figure to use is total fuel consumed, even if this figure is estimated. Fuel consumption more closely follows the load upon the engine.The interval is based on an average value for a reasonable load factor. The interval will be too high if the engine is run at high load and too low if the engine is lightly loaded.Use the time or distance figure only as a guideline. Other factors, such as how conscientiously preventive maintenance has been performed, fuel quality, operating conditions, S O S results, etc., are important in deciding when to perform an overhaul.To minimize downtime and provide you with the lowest cost and highest value Caterpillar recommends that all 3600 engines be overhauled before failure by scheduling an overhaul.Schedule OVERHAUL for Engines Operating on Distillate Fuel and used in medium duty - mainline application at Every 8 Years or 1 932 000 km (1,200,000 miles).Schedule OVERHAUL for Engines Operating on Heavy Fuel and used in medium duty - mainline application at Every 4 Years or 960 000 km (600,000 miles).The Guidelines For Reusable Parts and Salvage Operations is part of an established Caterpillar parts reusability program. These guidelines were developed to assist Caterpillar dealers and customers to reduce costs by avoiding unnecessary expenditures for new parts when existing parts can be used as is, repaired or salvaged. Parts complying with the specifications outlined in the reusable parts guideline will give an additional service life to the next overhaul without decreasing engine performance.Refer to the Service Manual for the disassembly and assembly procedures to perform the required maintenance as shown in the Maintenance Schedule or contact your Caterpillar dealer for assistance.Your Caterpillar dealer can provide you with the necessary parts to rebuild your engine at the least possible cost. There may be options available such as the Remanufactured Core Program as well as individual parts replacement.Overhaul Programs
Your Caterpillar dealer may be offering a variety of options regarding overhaul programs and Caterpillar recommends that an Overhaul be performed at this maintenance interval.Overhaul Options
Caterpillar Dealer - Contact your Caterpillar dealer to schedule a Before Failure Overhaul.Overhaul Recommendations
Overhaul programs vary from dealer to dealer. Therefore, Caterpillar recommends that you confer with your dealer to obtain specific information regarding the types of programs offered and overhaul services provided for extending the life of your engine.Exchange or RebuildVibration Damper BearingsStarting MotorsCylinder HeadWoodward ActuatorReplace the damper for any of the reasons that follow.1. The engine has had a failure because of a broken crankshaft.2. The crankshaft front bearing is badly worn.3. There is a large amount of gear train wear that is not caused by a lack of oil.If none of the above conditions is found, dampers can be used again at overhaul.ReplaceMain and Connecting Rod BearingsCamshaft BearingsRocker Arm BearingsFuel InjectorsAftercooler CoreAccessory Group