CYLINDER GP-BLADE LIFT 9T2472 - 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. Overhaul is defined as the interval at which the major wear items in the engine should be replaced. The overhaul interval represents overhaul of a non-failed engine. In other words, the engine is being rebuilt with certain new parts replacing worn parts. The major wear items include piston rings, engine rod and main bearings, valves, and valve seats, etc.Incidental to the changeout of these relatively few parts is the complete inspection of all other parts that are visible during the opening up of the engine. The disassembly required to perform an overhaul means that disturbed seals and gaskets, etc., will be replaced and the internal passages of the engine and block be cleaned.Your Caterpillar dealer may be offering a variety of options regarding overhaul programs and Caterpillar recommends that an Overhaul be performed at the maintenance intervals listed in the chart for your engine.Overhaul Instructions
If you elect to perform an overhaul yourself, without having a Caterpillar dealer perform the overhaul for you, or without using an overhaul kit, then you should be aware of the following:Inspect/Rebuild or Exchange
Cylinder Heads, Connecting Rods, Cylinder Liners, Pistons, Turbochargers, Spacer Plate, Cam Followers, Fuel Transfer Pump, Prelube Pump, Injectors, Governor, Wrist Pins, and Main Oil Pump.These components should be inspected according to the instructions found in various Caterpillar reusability publications. 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.These guidelines were developed to assist Caterpillar dealers and customers avoid unnecessary expenditures for new parts when existing parts can be used as is, repaired or salvaged.Install New
Piston Rings, Main Bearings, Rod Bearings, Valve Rotators, and Crankshaft Seals.In most probability, your thrust, main and rod bearings and crankshaft seals will not last until your second overhaul. Therefore, Caterpillar recommends the installation of new thrust, main and rod bearings at each overhaul period.Inspect
Crankshaft, Camshaft, Damper, Fuel System Linkage, Gear Train Gears and Bushings, Spacer Plates and Driven Unit Alignment.The ideal time for inspecting these items is while your engine is disassembled for overhaul. Inspect each component for potential damage as follows:* Crankshaft - Inspect for deflection, journal damage and bearing material seized to the journal. At the same time, check the taper and profile of the crankshaft journals by interpreting your main and rod bearing wear patterns.* Camshaft - Inspect the camshaft for journal and/or lobe damage. If camshafts or crankshafts are removed for any reason, use the magnetic particle inspection process to check the components for cracks.* Camshaft Followers and Bearings - Inspect the cam bearings for fatigue and wear.* Damper - It is our recommendation to replace 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