BRACKET 3J7798 - Caterpillar

Engine:
3512C (S/N: R1T1-UP; WF31-UP; WF51-UP)
Pumper:
SPF343C (S/N: RTX1-UP)
Petroleum Engine:
3512C (S/N: R1A1-UP; R1S1-UP)
Engine News SEBD9954, 01 August 2014, "New Engine Software Is Used on Certain 3512C Well Fracturing Engines". Disregard the previous article, additional software upgrade information has been added.Description of Change: The new engine software uses "SPN 107" for "Engine Air Filter 1 Differential Pressure". The former software used "SPN 272". Also, the fuel estimator maps have been updated to provide increased fuel usage accuracy.Adaptable To: The new engine software replaces the former software and is adaptable back to first production on the serial numbers listed above. Refer to Table 2 for a list of the new and former software part numbers.
Table 1
New Software Part Number     Former Software Part Number    
462-4047     419-6682    
462-4048     381-8952    
462-4050     381-8953    
463-9194     381-0362    
464-0489     368-7620    
464-0955     381-0361    This change is effective for the serial numbers listed in Table 2.
Table 2
Effective Serial Numbers    
S/N:R1A01968-UP    
S/N:R1S01609-UP    
S/N:R1T00127-UP    
S/N:WF300149-UP    
S/N:WF500316-UP    
S/N:RTX00895-UP