Documenting the Date Codes of the Bearings for 3500 and G3600 Engines{1202, 1225} Caterpillar


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Documenting the Date Codes of the Bearings for 3500 and G3600 Engines{1202, 1225} [TIBU5763]
BASIC ENGINE
CRANKSHAFT GP
Documenting the Date Codes of the Bearings for 3500 and G3600 Engines{1202, 1225}
1.1. Introduction
2.1. Problem
3.1. Solution
Engine: All 3500 Engines G3600 Family

Introduction

The problem that is identified below does not have a known solution. Until a permanent solution is known, use the recommendations below.

Problem

Some rod bearings for 3500 and G3600 Engines may have a quality related issue.

Solution

The manufacturer recommends recording and maintaining records of the bearings' date codes on all rebuilt 3500 and G3600 engines. Also, record the date codes and maintain records of the date codes on all repairs that are associated with the bottom end of the engine.




Illustration 1g01964733

Record the serial number of the engine, the date codes of the bearings, and the position of all the connecting rod bearings and the main bearings. Refer to Illustration 1 for an example of a date code. Refer to Table 1 below for an example of a table for recording.

Table 1
Installed Bearings                
Serial # of the Engine                
Engine Hours                
Date                
                   
Rod and Cylinder #     Position of the Bearing     Date Code    
1     Upper     5NUND-NDAE-UC    
Lower    
                   
Main #     Position of the Bearing     Date Code    
1     Upper        
Lower    

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