Improved Bank 2 Valve Group is Now Used in Certain 424B Backhoe Loaders {5051} Caterpillar


Improved Bank 2 Valve Group is Now Used in Certain 424B Backhoe Loaders {5051}

Usage:

424B JRN
Backhoe Loader
424B (S/N: JRN1-UP)

Description Of Change: Improvements have been made to the manufacturing process for the Bank 2 Valve Group on certain 424B Backhoe Loaders. The new procedure increases seal life by reducing the risk of damage during assembly.

Adaptable To: For field service of the 415-4510 Bank Valve Gp on the following machines, refer to the table below for replacement seal part numbers.

  • 424B (S/N: JRN1000-2439)
The new assembly procedure is effective in production on the following machines:

  • 424B (S/N: JRN2440-UP)

Table 1
Required Parts 
Part Number  Part Name 
453-7478  Seal Kit 
453-7477  Seal Kit 
453-7473  Relief Valve Gp 

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