HOSE-AIR 4N9215 - Caterpillar

If the engine is equipped with duplex oil filters, the engine oil filter elements can be changed while the engine is in operation. This capability is useful if the oil filter elements require more frequent replacement than the engine oil. Refer to "Replacing the Engine Oil Filters During Engine Operation".The oil change interval can be affected by several factors:
Air/fuel ratio
Ambient air conditions
Engine application
Fuel type
Oil type
Size of the oil sumpThe S O S oil analysis program analyzes used oil in order to determine if the oil change interval is suitable for your specific engine. In the absence of S O S oil analysis, change the engine oil and filters according to the interval that is listed in Table 1.
Table 1
Engine Oil Change Intervals
Engine Sump Capacity Oil Change Interval
Engines With a Standard Sump
3512C 318 L (84 US gal) Every 500 Service Hours
3516C 405 L (107 US gal)
Engines With a Deep Sump
3512C 625 L (165 US gal) Every 1000 Service Hours
3516C 807 L (213 US gal) Drain the Oil
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, "Cat Dealer Service Tool Catalog" or refer to Special Publication, PECJ0003, "Cat Shop Supplies and Tools Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Hot oil and components can cause personal injury.Do not allow hot oil or components to contact skin.
Do not drain the oil when the engine is cold. As the oil cools, waste particles settle on the bottom of the oil pan. The waste particles are not removed when the cold oil is drained. Drain the crankcase when the oil is warm. This method allows proper draining of the waste particles that are suspended in the oil.Failure to follow this recommended procedure will allow the waste particles to be recirculated through the engine lubrication system with the new oil.
After the engine has been operated at normal operating temperature, STOP the engine.
Drain the oil according to the equipment on the engine. Note: Drain the oil into a suitable container. DO NOT drain the oil into the bilge sump. Dispose of the oil according to local regulations.
Illustration 1 g00574534
Oil drain plug
Note: If a suction device is used in order to remove the oil from the oil pan, ensure that the suction device is clean. A clean device will prevent dirt from entering into the oil pan. Be careful not to strike the engine oil suction tubes or the piston cooling jets.
If the engine does not have a drain valve or a pump, remove an oil drain plug. Allow the oil to drain. After the oil has drained, clean the drain plug and clean the fitting for the drain plug. Install the drain plug. Tighten the drain plug to 145 15