SWITCH GP- 4735657 - Caterpillar

Air Compressor
Since the air compressor uses engine oil for lubrication, be sure it is clean inside. Foreign material from a failure of the former engine can decrease engine life. Worn air compressors can, also, be a source of "oil consumption", by pumping oil into the engine air intake pipe, or the vehicle air tanks.Air Cleaner
Install a new filter element in the air cleaner. Install all hoses and clamps as necessary. Check all piping and connections for leaks.Radiator
Make sure the radiator is clean inside and out. Install new hoses and clamps. Check for leaks. If the engine is equipped with a viscous fan clutch, check fan speed to be sure of proper operation.Water Separator
The Remanufactured Engine does not have a water separator; however, it is a Caterpillar recommendation that one be installed. Either transfer the water separator from the original engine, or install a new water separator on the Remanufactured Engine.Oil Pan
Compare the oil pan configuration on the Remanufactured Engine with that of the original engine. If they are different, it will be necessary to change the oil pan on the new engine to match the original engine. When the oil pan is changed, it will be necessary to change the oil pump suction bell to fit the oil pan sump location. The dipstick and guide tube may also need to be changed and/or recalibrated for a particular application.Fuel System
Check the fuel and power setting given on the engine information plate of the Remanufactured Engine, and compare this information with the same settings of the original engine. If the settings are different, it is possible that some fuel system adjustment will be necessary. Use the reference numbers to obtain the necessary information about governor springs, torque control groups, etc., from the Parts Book, Service Manual and the FUEL SETTING INFORMATION LIBRARY and/or the FUEL SETTING AND RELATED INFORMATION microfiche. It may be necessary to change some of these parts, or the settings, for a specific engine application. Whenever an engine is reset to new specifications, always install a 4W5140 Plate with the new settings stamped on it, on top of the original engine information plate on the valve cover.Sperry-New Holland Combines
For those Remanufactured Engines that are to be installed in Sperry-New Holland Combines: 1. Remove the load stop pin and install a 4W9007 Torque Control Pin (spring end up). 2. Remove the torque control group and install an 8N3840 Temperature Compensator Conversion Group. 3. Remove the governor "outer spring" and install the correct outer spring as a replacement. Refer to the April 8, 1985 Service Magazine, the April, 1985 Engine News and the