PLUG 3853599 - Caterpillar

Selection of the Oil Change Interval
The factory fills the hydraulic system with Cat HYDO Advanced 10. With continued use of Cat HYDO Advanced 10 and the recommended S O S Services oil analysis, the maintenance interval for the oil change may be extended.Your machine may be able to use an extended interval for the hydraulic oil. The hydraulic oil is in the system that is not integral to the service brakes, the clutches, the final drives, or the differentials. The oil should be monitored during intervals of 500 hours. The extended interval can be used if the following criteria are met.HYDO Advanced 10
Cat HYDO Advanced 10 is the preferred oil for use in most Cat machine hydraulic and hydrostatic transmission systems when ambient temperature is between −20 °C (−4 °F) and 40 °C (104 °F). Cat HYDO Advanced 10 has an SAE viscosity grade of 10W. Cat HYDO Advanced 10 has a 50% increase in the standard oil drain interval (up to 2000 hours) for machine hydraulic systems over second and third choice oils when you follow the maintenance interval schedule for oil filter changes and for oil sampling that is stated in the Operation and Maintenance Manual. Extended oil drain intervals are possible when using S O S Services oil analysis. When you switch to Cat HYDO Advanced 10, cross contamination with the previous oil should be kept to less than 10%. Consult your Caterpillar dealer for details about the benefits from the improved performance designed into Cat HYDO Advanced 10.Oil Filters
Cat oil filters are recommended. The interval for changing the oil filter is given in the Maintenance Interval Schedule.Oil
The extended interval for changing the oil is specific to Cat HYDO Advanced 10 and the recommended S O S Services oil analysis.The regular interval for changing the oil is for the following oil types.
Cat Transmission and Drive Train Oil (TDTO)
Cat TDTO-TMS
Cat Diesel Engine Oil
Cat Biodegradable Hydraulic Oils (HEES)
Cat Multipurpose Tractor Oil (MTO)
Heavy-duty diesel engine oils with a minimum zinc content of 900 ppmIf Cat oils cannot be used, use heavy-duty oils with the following classification: Cat ECF-1, API CG-4, API CF, and TO-4. These oils must have a minimum zinc additive of 0.09 percent (900 ppm).Note: Industrial hydraulic oils are not recommended in Cat hydraulic systems.Monitoring the Condition of the Oil
The oil should be monitored during at the recommended intervals. Cat standard SOS Fluids Analysis or an equivalent oil sampling program should be used.The current guidelines for cleanliness of the oil should be observed. Refer to "Measured Data".If an oil sampling program is not available, follow the interval for changing the oil given in the Maintenance Interval Schedule.Measured Data
The following information should be monitored through sampling of the oil:
Significant changes in wear metals should be monitored. These metals include iron, copper, chromium, lead, aluminum, and tin.
Significant changes in the following additives should be monitored: zinc, calcium, magnesium, and phosphorus.
Contaminants should not be present. These contaminants include fuel and antifreeze. Water content should be 0.5 percent or less.
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