NUT-FULL 7X3374 - Caterpillar

Generator Set:
C32 GEN SET (S/N: SXC1-UP)
Industrial Engine:
C27 INDUSTRIAL (S/N: TWM1-UP)
C32 INDUSTRIAL (S/N: TLD1-UP)
Marine Engine:
C32 MARINE (S/N: RNC1-UP; T3T1-UP; RNY1-UP; RNZ1-UP)
Description of Change: The improved cross-tie bolts extend fatigue life when compared to the previous bolt. Adaptable To: The improved 365-4307 Bolt is a direct replacement for the 234-6902 Bolt. In the event of a failure of a 234-6902 Bolt, replace the failed bolt and the non-failed bolt, opposite the failure location, with the improved 365-4307 Bolt. Install new 240-9543 Washers at both locations. Refer to Illustrations 1 and 2.To assemble the bolts, refer to Disassembly and Assembly, RENR9217, "Crankshaft Main Bearings - Install".
Illustration 1 g03301077
(1) Location of cross-tie bolts
Illustration 2 g03301117
(2) Old 234-6902 Bolt (3) Improved 365-4307 Bolt The improved 365-4307 Bolt is adaptable back to the first production of the listed engines.
Table 1
Effective Serial Numbers    
S/N:TWM03600-UP    
S/N:RNC031199-UP    
S/N:RNY01936-UP    
S/N:RNZ01046-UP    
S/N:SXC92003-UP    
S/N:T3T00384-UP    
S/N:TLD01082-UP    The change is effective at the factory with the engine serial numbers that are listed in Table 1.