TUBE 2759369 - Caterpillar

Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
Illustration 1 g01955898
Typical exampleThere have been a number of remanufactured 3054C engines that were assembled with a loose 111-3422 Nut (1) for the gear for the injection pump (2). This nut has only received an initial torque of 25 N m (18 lb ft). A second torque of 88 N m (65 lb ft) is required. Without this required torque, the timing of the engine may be affected.The remanufactured part numbers for the engine and serial numbers that have been identified with the loose nut for the fuel injection pump gear are listed in table 1.
Table 1
Part Number of the Engine Arrangement    Engine Serial Number    
10R-5995     54E09007    
54E09008
54E09009
54E09010
54E09011
54E09012
54E09013
54E09063
54E09064
54E09065
54E09066
54E09071
54E09073
54E09074
54E09075
10R-5996     54E09055    
54E09056
54E09057
10R-5998     54E09039    
54E09058
10R-8791     54E09022    
54E09023
54E09024
54E09025
54E09026
54E09028 Solution
The nut that secures the fuel injection pump gear requires a second torque of 88 N m (65 lb ft) prior to engine operation. Refer to Disassembly and Assembly, "Front Cover - Remove and Install" for the correct procedure to remove the front cover. Refer to Disassembly and Assembly, "Fuel Injection Pump - Install" for the correct procedure to tighten the nut.