3B2-63611-0 Nissan THROTTLE DRUM

Operating Conditions for the Field Performance Evaluation
Duration - The minimum number of operating hours for a single engine installation is 7000 hours. The minimum for one engine at an installation with multiple engines is also 7000 hours.Load Factor - The load factor must be representative of the normal engine application at the site. High load factors are preferred.Lube Oil - The candidate oil must be selected by the oil company.The Cat Micro-Oxidation Test is recommended as a pre-screening method to qualify oils for Field Performance Evaluation.Note: Passing the Cat Micro-Oxidation Test does NOT guarantee passing the Field Performance Evaluation, but oils that do not pass the Cat Micro-Oxidation Test will likely fail the Field Performance Evaluation.Oil Analysis - Caterpillar recommends the S O S Services oil analysis program. Alternate oil analysis programs must measure oil condition and wear metals. Used oil samples must be obtained for analysis at 250 hour intervals.Oil Change Interval - The oil change interval is determined by condemning limits that are established by Caterpillar. The limits are based on analysis of the used oil and the trend lines that are established. Generally, the service life of lube oil for engines that use distillate fuel is between 600 and 1400 hours. Usually for engines that use heavy fuel oil, the service life of the lube oil ranges between 300 and 700 hours. If SOS oil analysis and other factors allow, maximum oil service life for diesel fueled engines is 3000 hours. Maximum oil service life for heavy fuel oil fueled engines is 2000 hours. Refer to the S O S article in this Special Publication.Fuel Analysis - An analysis of the fuel must be provided by an independent laboratory at the beginning of the Field Performance Evaluation. Subsequent analyses of the fuel must be provided at intervals of 2000 hours or provided when new shipments of fuel are received. The fuel must meet the guidelines that are listed in this Special Publication, "Fuel Specifications" topic.Criteria for the Evaluation
Oil Consumption - The oil consumption must not exceed two times the initial oil consumption during the 7000 hour period. The initial oil consumption is established during the first 3000 to 5000 hours of operation with the oil that is being evaluated.Final Inspection - At the end of the Field Performance Evaluation, these components from two cylinders must be removed and inspected: pistons, piston rings and cylinder liners. None of the following conditions are acceptable: sticking of the piston rings, scuffing of the piston rings or cylinder liners and excessive wear of the piston rings. Polishing of the cylinder liner bore must be confined to the area that is affected by the uppermost position of the top piston ring. The entire circumferences of the inlet valves and the exhaust valves must seal. Guttering of the valves is not acceptable.If a new engine is used for the Field Performance Evaluation, all of the cylinders in the engine must be inspected with a borescope. The cylinder that shows the worst deposits or wear and the cylinder that shows average deposits or wear must be used for the visual inspection.If the oil is evaluated in a used engine, two new sets of these components must be installed before the Field Performance Evaluation: pistons, piston rings and cylinder liners. Those new components will be examined for the final inspection.Close up photographs that show the wear and deposits must be taken in order to document the appearance of these components: pistons, piston rings, cylinder liners, crankcase, top deck of the cylinder head, bottom deck of the cylinder head, valve guides, inlet valves and exhaust valves. Photographs that show the entire component must also be available on request.Summary - This Field Performance Evaluation procedure provides the oil company and the engine owner with a method of evaluating a lubricating oil for the 3600 and C280 Series diesel engines. If the oil meets these guidelines for the 7000 hours of the Field Performance Evaluation, the oil has fulfilled the Cat requirements. Caterpillar will not endorse any oil for use in Cat 3600 and C280 Series diesel engines as a result of a Field Performance Evaluation. The oil company can use the Field Performance Evaluation as proof of performance.Responsibilities
Care must be taken in order to define the responsibilities of each party that is involved in the Field Performance Evaluation. The oil company and the engine owner must recognize the responsibilities if the performance of the oil reduces the service life of the engine. Caterpillar recommends specific definitions of the responsibilities for the oil company and the engine owner in a Field Performance Evaluation agreement. The agreement should be made before the Field Performance Evaluation is initiated. Both the oil company and the engine owner must understand that the Field Performance Evaluation is not monitored by Caterpillar. The Field Performance Evaluation is not sponsored by Caterpillar.Field Evaluation Agreement
The Field Performance Evaluation agreement is between the engine owner and the oil company. The agreement is a important part of the Field Performance Evaluation. The completion and signing of the agreement should occur before the initiation of the Field Performance Evaluation. The agreement must fully define the Field Performance Evaluation and the responsibilities of each party. This publication contains the information and guidelines that are necessary to write a detailed agreement. Initial Field Performance Evaluation involves some risk. Use of these guidelines will minimize the risk. If the guidelines are followed, the probability of a successful Field Performance Evaluation will be enhanced. Responsibilities of the Oil Company
Performance - The performance of the oil is the responsibility of the oil company. The oil must maintain stable oil control and the oil must control deposits in the combustion chamber and in the crankcase. Engine service life must be maintained at the predicted stage for the particular engine application.Supply - The supply of the oil is the responsibility of the oil company. If special storage and/or shipping is required, the oil company should cover the cost of those items.Oil and fuel analysis