New Engine Software Is Now Used on Certain Backhoe Loaders {7620} Caterpillar


New Engine Software Is Now Used on Certain Backhoe Loaders {7620}

Usage:

420F JWJ
Backhoe Loader
416F (S/N: KSF1-2254)
420F (S/N: JWJ1-3288; SKR1-45157)
428F (S/N: RAK1-610)
430F (S/N: RDF1-870; RGS1-762)
432F (S/N: PXR1-893)
434F (S/N: MTR1-241)
444F (S/N: JXR1-346)

Description Of Change: A new engine software is now used on the machines listed above. The improvement of the new engine software includes a fuel lift pump diagnostic update. This improvement fixes the logged error code 1075-5 (electric lift pump current below normal) reported over the Product Link PL421.

Adaptable To: The following changes are adaptable to the machines within the listed serial numbers, and are effective with all machines after the listed serial numbers.

Table 1
Required Parts List 
Item  New Part Number  Part Name  Former Part Number (1) 
535-8837  Engine Software  503-0012 
(1) The former part number listed is for reference only and may differ.

The new software is available in the form of a flash file through the Caterpillar Service Information System (SIS). A newer part number may be available. SIS web only displays the latest available flash file.

Caterpillar Information System:

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