SEAL-BUFFER 1709853 - Caterpillar

Take the oil samples as close as possible to the standard intervals. To receive the full value from S O S Oil Analysis, establish a consistent trend of data. To establish a pertinent history of data, perform consistent oil samplings that are evenly spaced.Refer to the Operation and Maintenance Manual that came with your machine for the recommended oil sampling intervals for each compartment. Severe applications may require a more frequent oil sampling interval.For other acceptable oil types and specifications, refer to the “Lubricant Viscosities for Ambient Temperatures” Tables in this Special Publication.For best results, engine oil samples should be taken at 250 hour intervals. A 250 hour sampling interval can provide a timely indication of oil contamination and oil degradation. Under certain conditions, the Caterpillar dealer or the Operation and Maintenance Manual may allow a longer interval between oil samplings.Refer to the Operation and Maintenance Manual that came with your machine for the recommended oil change intervals for each compartment.
Table 1
Compartment Recommended Sampling Interval Sampling Valve Oil Type
Engine 250 Hours Yes Cat DEO
Cat DEO-ULS
Transmission 500 Hours Yes Cat TDTO
Cat TDTO-TMS
Hydraulics 500 Hours Yes Cat HYDO Advanced
Differential and Final Drive 500 Hours No Cat TDTO
Cat FDAO Consult your Caterpillar dealer for complete information and assistance in establishing an S O S Services program for your equipment.More Frequent S O S Sampling Improves Life Cycle Management
Traditionally, S O S sampling intervals have been at 250 hours for engines and at 500 hours for all other compartments. However in severe service applications, more frequent oil sampling is recommended. Severe service for lubricated compartments occurs at high loads, in high temperatures, and in dusty conditions. If any of these conditions exist, sample the engine oil at 125 hour intervals and sample the other compartments at 250 hour intervals. These additional samples will increase the chance of detecting a potential failure.Determining Optimum Oil Change Intervals
Sampling the oils per the recommendations given in Table 1 provides information for oil condition and for oil performance. This information is used to determine the optimum usable life of a particular oil. Also, more points of data will allow closer monitoring of component wear rates. Close monitoring by a trained analyst also allows you to obtain the maximum use of the oil. For detailed information on optimizing oil change intervals, consult your Cat dealer.This Special Publication does not address recommended oil drain intervals, but rather provides guidance that should be used with your specific engine/machine Operation and Maintenance Manuals in determining acceptable oil drain intervals. Consult your engine/machine Operation and Maintenance Manuals, and consult your Caterpillar dealer for additional guidance, including but not limited to guidance on establishing optimized and/or acceptable oil drain intervals.To reduce the potential risk of failures associated with extended oil drain periods, Caterpillar recommends that oil drain intervals only be extended based on oil analysis, and subsequent system inspections. Oil analysis alone does not provide an indication of the rate of formation of lacquer, varnish and/or other deposits on surfaces. The only accurate