CAP-CRANKSHAFT BEARING 1678081 - 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.Before proceeding with Top End Overhaul, perform all previous maintenance interval requirements.This maintenance interval is labeled TOP END, because it involves removal, inspection and rework (rebuild or exchange) of the cylinder head components. This maintenance interval is dependent on load-sensitive items.A top end overhaul is generally indicated by increased fuel consumption and reduced power. This interval option consists of completely reconditioning your cylinder heads. The cylinder components are usually not worn enough to need repair.Refer to the Service Manual for disassembly and assembly procedures to perform the required maintenance as shown in the Maintenance Schedule. Contact your Caterpillar dealer for assistance. Engines Operating on Distillate Fuel Schedule TOP END overhaul for Engines used in medium duty - mainline application at Every 4 Years or 966 000 km (600,000 miles). Engines Operating on Heavy Fuel Schedule TOP END overhaul for Engines used in medium duty - mainline application at Every 2 Years or 480 000 km (300,000 miles).Follow the maintenance requirements for this maintenance interval, using the Guideline for Reusable Parts and Salvage Operations as a guideline for parts reusability.Refer to the Index of Publications On Reusability Or Salvage of Used Parts section of the Guideline For Reusable Parts and Salvage Operations, SEBF8029 to determine the reusability publications needed for inspecting your parts.The Guideline 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 reduce costs by avoiding unnecessary expenditures for new parts when existing parts can be used as is, repaired or salvaged. Parts complying within the specifications outlined in the reusable part guideline will give an additional service life.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 for Top End parts replacement.Refer to the Service Manual for disassembly and assembly procedures to perform the required maintenance as shown in the Maintenance Schedule. Contact your Caterpillar dealer for assistance.Overhaul Programs
Your Caterpillar dealer may be offering a variety of options regarding overhaul programs. Caterpillar recommends that a Top End Overhaul be performed at this maintenance interval.A planned top end overhaul may be your best value. You can:* Avoid costly unplanned downtime* Reuse as many original parts as standards permit* Extend your engine's service life* Get the best cost/value relationship per hour of extended lifeA Flat Rate Overhaul is not really a type of overhaul but a program that guarantees the maximum price you will pay for a top end overhaul. Flat Rate Overhauls will help you control costs.Flat rate prices on preventive maintenance programs or major repair options are available from many servicing dealers for all Caterpillar Engines.Overhaul Options
Caterpillar Dealer - Contact your Caterpillar dealer to schedule a before failure overhaul. Overhaul Kit -