PAN AS-OIL 3950661 - Caterpillar

Table 1
Top End Overhaul
Service Hours and Fuel Consumption for 3516B HD Engines (1)
Engine Rated 1800 RPM
7500 Service Hours
3516B 1942000 L (512,500 US gal)
Second Top End Overhaul
Engine 15000 Service Hours
3516B 3884000 L (1,025,000 US gal)
(1) Fuel consumption is based on a load factor of approximately 60 percent.A top end overhaul involves the removal, the inspection, and the rework of the cylinder head components. Some additional components are replaced and serviced.Your Caterpillar dealer can provide these services and components. Your Caterpillar dealer can ensure that the components are operating within the appropriate specifications.Note: The driven equipment may also require service when the engine is overhauled. Refer to the literature that is provided by the OEM of the driven equipment.The following definitions explain the terminology for the services that are performed during an overhaul:Exchange - Your Caterpillar dealer will exchange your worn parts for parts that conform to original functional specifications.Inspect - Inspect the components according to the instructions that are in Caterpillar reusability publications. Refer to Guidelines for Reusable Parts and Salvage Operations, SEBF8029, "Index of Publications on Reusability or Salvage of Used Parts". The guidelines were developed in order to help Caterpillar dealers and customers to avoid unnecessary expenditures. New parts are not required if the existing parts can still be used, reconditioned, or repaired. If the components are not in the reusability guidelines, refer to the Service Manual, "Specifications" module.Install New - The service life of the part is exhausted. The part cannot be reconditioned. The replacement part must be a new part.Rebuild - The component is reconditioned in order to comply with reusability guidelines.Replace - The service life of the part is exhausted. The part must be replaced with a part that meets functional specifications. The replacement part may be a new part, a rebuilt part, or a used part.If you elect to perform an overhaul without the services of a Caterpillar dealer, be aware of the recommendations in Tables 2 and 3.
Table 2
Top End Overhaul (1)
Clean Oil suction screen
Clean
Inspect
Pressure test Aftercooler core (2)
Exchange
Install new Fuel injectors
Inspect
Install new Engine wiring harness
Inspect
Rebuild Rocker arms
Inspect
Rebuild
Exchange Cylinder head assemblies
Fuel priming pump
Inspect
Replace Fuel pressure regulating valve
Pushrods
Spacer plates
Install new Air inlet manifold (gaskets and seals)
Exhaust manifold (seals and bellows)
(1) For instructions on removal and installation of components, see the Service Manual, "Disassembly and Assembly" module.
(2) For instructions on cleaning the core, see this Operation and Maintenance Manual, "Aftercooler Core - Clean/Test" topic.
Table 3
Second Top End Overhaul (1)
Clean Oil suction screen
Clean
Inspect
Pressure test Aftercooler core (2)
Exchange
Install new Fuel injectors
Inspect
Exchange Camshaft lifters
Inspect Connecting rod bearings (3)
Cylinder liners (3)
Piston crowns and skirts (3)
Piston pins (3)
Inspect
Install new Camshaft lifters
Engine wiring harness
Inspect
Rebuild
Exchange Cylinder head assemblies
Engine oil pump
Fuel priming pump
Fuel transfer pump
Prelube pump
Scavenge oil pump
Inspect
Replace Fuel pressure regulating valve
Pushrods
Spacer plates
Inspect
Rebuild Rocker arms
Install new Air inlet manifold (gaskets and seals)
Exhaust manifold (seals and bellows)
Rebuild
Exchange Turbochargers
(1) For instructions on removal and installation of components, see the Service Manual, "Disassembly and Assembly" module.
(2) For instructions on cleaning the core, see this Operation and Maintenance Manual, "Aftercooler Core - Clean/Test" topic.
(3) Inspect ONLY TWO of the components