ORIFICE 1246652 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
Selection of Oil Change Interval
Refer to this Operation and Maintenance Manual, "Fluid Recommendations" for further information about oils that may be used in Caterpillar engines.Refer to this Operation and Maintenance Manual, "Severe Service Application " to determine if the oil change interval should be reduced from the normal change interval. If operating in any of the conditions or environments outlined in the Severe Service Application, use S O S Services oil analysis to determine the oil change interval. If S O S Services oil analysis is not being used, the oil change interval should be reduced to 250 hrs.
Table 1
Oil Change Interval (1)
Multigrade Oil Type Operating Conditions
Normal Severe Service Application
Cat DEO-ULS
Preferred 500 hr 250 hr
Oil meeting the requirements of the Cat ECF-3 Specification or the API CJ-4 classification
8 minimum TBN
Preferred 500 hr 250 hr
Oil meeting the requirements of the ACEA C9/E6 Specification
TBN below 10.4 500 hr 250 hr
(1) Refer to Special Publication, PEHJ0192, "Optimizing Oil Change Intervals" for further information..Drain the Engine Oil
After the engine has been run at the normal operating temperature, stop the engine. Attach a "DO NOT OPERATE" or a similar warning tag to the ignition keyswitch before the engine is serviced.
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.
Remove the oil drain plug in order to allow the oil to drain.
After the oil has drained, the oil drain plug should be cleaned and installed. Replace the Oil Filter
Caterpillar oil filters are built to Caterpillar specifications. Use of an oil filter not recommended by Caterpillar could result in severe engine damage to the engine bearings, crankshaft, etc., as a result of the larger waste particles from unfiltered oil entering the engine lubricating system. Only use oil filters recommended by Caterpillar.
Illustration 1 g00103713
Typical filter mounting base and filter gasket
Remove the oil filter with a 185-3630 Strap Wrench.
Cut the oil filter open with a 175-7546 Oil Filter Cutter Gp. Break apart the pleats and inspect the oil filter for metal debris. An excessive amount of metal debris in the oil filter may indicate early wear or a pending failure. Use a magnet to differentiate between the ferrous metals and the nonferrous metals that are found in the oil filter element. Ferrous metals may indicate wear on the steel and cast iron parts of the engine.Nonferrous metals may indicate wear on the aluminum parts, brass parts, or bronze parts of the engine. Parts that may be affected include the following items: main