VALVE AS-CONTROL 4728998 - Caterpillar

Adjustment of the Oil Change Interval
Note: Your Caterpillar dealer has additional information on these programs.Program A
Verification for an Oil Change Interval of 500 HoursThis program consists of three oil change intervals of 500 hours. Oil sampling and analysis is done at 250 hours and 500 hours for each of the three intervals for a total of six oil samples. The analysis includes oil viscosity and infrared (IR) analysis of the oil. If all of the results are satisfactory, the 500 hour oil change interval is acceptable for the machine in that application. Repeat Program A if you change the application of the machine.If a sample does not pass the oil analysis, take one of these actions:
Shorten the oil change interval to 250 hours.
Proceed to Program B.
Change to a preferred oil type in Table 1.Program B
Optimizing Oil Change IntervalsBegin with a 250 hour oil change interval. The oil change intervals are adjusted by increments. Each interval is adjusted an additional 50 hours. Periodic oil sampling and analysis is done during each interval. The analysis includes oil viscosity and infrared (IR) analysis of the oil. Repeat Program B if you change the application of the machine.If an oil sample does not pass the analysis, shorten the oil change interval, or change to a preferred multigrade oil type in the listing above.References
Reference: Special Publication, PEDP7035, "Optimizing Oil Change Intervals"Reference: Special Publication, PEDP7036, "S O S Fluid Analysis"Reference: Special Publication, PEHP7076, "Understanding the S O S Services Tests"Procedure for Changing the Engine Oil and the Filter
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Open the access door that is located on the left side of the machine.
Illustration 2 g00776488
Open the crankcase drain valve (4) . Allow the oil to drain into a suitable container. Close the crankcase drain valve.
Remove the filter element (3) with a strap type wrench. Inspect the filter.Reference: Refer to Operation and Maintenance Manual, "Oil Filter - Inspect".
Clean the filter mounting base with a clean cloth. Make sure that the used filter gasket has been completely removed.
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Apply a thin coat of oil to the seal on the new filter. Install a new engine oil filter hand tight until the seal of the engine oil filter contacts the base. Note the position of the index marks on the filter in relation to a fixed point on the filter base.Note: There are rotation index marks on the engine oil filter that are spaced 90 degrees or 1/4 of a turn away from each other. When you tighten the engine oil filter, use the rotation index marks as a guide.
Tighten the filter according to the instructions that are