PLUNGER AS 7T3270 - Caterpillar

Do not operate the engine with low oil pressure. Engine damage will result. If the measured engine oil pressure is low, discontinue engine operation until the problem is corrected.
Use this procedure in order to troubleshoot low engine oil pressure or use this procedure if the below diagnostic code is active. You must access the monitoring system on the Caterpillar Electronic Technician (ET) in order to view the current trip points for these codes.
Table 1
Event Code    
Code and Description    Flash Code    Conditions which Generate this Code    System Response    
100-01 Low Oil Pressure Warning     46     The engine oil pressure is below a map dependent value for one second. The engine has been running for 15 seconds.     The engine will be derated. The code is logged.    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 the engine oil level 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 the 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 the presence of fuel in lubricating 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.