HOSE AS 1119644 - Caterpillar

Table 1
Event Codes    
Code and Description    Conditions which Generate this Code    System Response    
E073(1) High Oil Filter Differential Pressure - least severe     The oil filter differential pressure is greater than the trip point     The code is logged.
The ECM may derate the engine or shutdown the engine.
   
E073(2) High Oil Filter Differential Pressure - moderate severity    
E073(3) High Oil Filter Differential Pressure - most severe    
E360(1) Low Engine Oil Pressure : least severe     The engine oil pressure is below the trip point and the delay time has expired.     The code is logged.
The ECM may derate the engine or shutdown the engine.    
E360(2) Low Engine Oil Pressure : moderate severity    
E360(3) Low Engine Oil Pressure : most severe    Probable Causes
Associated code
Low engine oil level
Aeration in the oil
Low oil viscosity
Plugged Oil Filter
Faulty oil pump
Faulty engine oil pressure sensor
Faulty bypass valve
Damaged suction tube or cracked suction tube
Excessive wear of engine componentsRecommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in the order of the listed test steps.
Table 2
Troubleshooting Test Steps    Values    Results    
1. Active Codes and Logged Codes
A. Establish communication between Caterpillar Electronic Technician (ET) and the Electronic Control Module (ECM).
B. Monitor the diagnostic codes on Cat ET. Check for active or logged diagnostic codes. Specifically check for codes that could be associated to low oil pressure. Refer to the histogram information for engine derates in Cat ET.
Note: Wait at least 30 seconds in order for diagnostic codes to become active.
C. If the histograms contain derates and no diagnostic codes are present, then the engine is operating normally.
   
Codes    
Result: A diagnostic code is present.
Repair: Troubleshoot any codes before continuing with this procedure.
Verify that the repair eliminated the problem.
Reset the histogram.
Result: A diagnostic code is not present.
Proceed to Test Step 2.
   
2. Engine Oil Level
A. Check the engine oil level in the crankcase. Refer to the Operation and Maintenance Manual for calibration of the dipstick gauge. The oil level can possibly be too far below the oil pump supply tube. The oil pump cannot supply enough lubrication to the engine components.
   
Oil    
Result: The engine oil level is low.
Repair: Add engine oil in order to obtain the correct engine oil level. Refer to Operation and Maintenance Manual, "Engine Oil" for the recommendations of engine oil.
Start the engine. Inspect the exterior of the engine for oil leaks. Repair any oil leaks.
Verify that the repair eliminated the problem.
Result: The engine oil is not low.
Proceed to Test Step 3.    
3. Aerated Oil
A. Sample the engine oil for aeration.
Foamy oil on the dipstick is a good indication of aeration.
   
Aeration    
Result: The oil is aerated.
Proceed to Test Step 9.
Result: The oil is not aerated.
Proceed to Test Step 4.
   
4. Oil Viscosity
A. Sample the engine oil viscosity. Obtain an S O S Oil Analysis to determine the characteristics of the oil.
B. Access the "Cylinder Cutout Test" in the "Diagnostic Tests" under the