STARTING MOTOR GP-ELECTRIC 3900787 - 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, or API CK-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 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.
Clean the sealing surface of the filter mounting base. Ensure that all the old oil filter gasket is removed.
Apply clean engine oil to the new oil filter gasket.
Do not fill the oil filters with oil before installing them. This oil would not be filtered and could be contaminated. Contaminated oil can cause accelerated wear to engine components or engine damage.
Install the oil filter. Tighten the oil filter until the oil filter gasket contacts the base. Tighten the oil filter by hand according to the instructions that are shown on the oil filter. Do not overtighten the oil filter.Fill the Engine Crankcase
Remove the oil filler cap. Fill the