HARNESS AS-AUXILIARY 2041663 - Caterpillar

Do not operate engine with low oil pressure. Engine damage will result. If measured engine oil pressure is low, discontinue engine operation until the problem is corrected.
Probable Causes
Low engine oil level
Dirty engine oil filters
Restriction at engine oil pump
Restriction in engine oil cooler(s)
Fuel dilution of engine oil
Camshaft and/or camshaft bearings
Crankshaft bearingsRecommended Actions
Engine Oil Level
Inspect the engine oil level. If engine oil is low add engine oil.Oil Filter
Inspect the engine oil filter. If the engine oil filter is dirty, install a new engine oil filter. Check the operation of bypass valve for the filter. Clean the bypass valve and the housing. If necessary, install new parts. Engine Oil Pump
Check for blockage of the inlet screen in the engine oil pump. Examine the engine oil pump for excessive wear.Oil Cooler
Inspect the engine's oil cooler. Clean the engine oil cooler core(s) and/or install new engine oil cooler core(s).Fuel Dilution of Engine Oil
Check for presence of fuel in lubricating oil. Refer to the diagnostic procedure Troubleshooting, "Fuel Dilution of Engine Oil".Camshaft and/or Crankshaft
Inspect the camshaft and/or camshaft bearings. Check the components for excessive wear. Excessive wear is an indication of a blocked oil passage. Inspect the crankshaft and/or crankshaft bearings. Check the components for excessive wear.