2014/08/08 Caterpillar

New Engine Software Is Used on Certain 3512C Well Fracturing Engines {1901, 1920}

Usage:

3512C R1A

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.

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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.

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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

Caterpillar Information System:

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