Ride Control Performance Improved On Certain F and F2 Series Backhoe Loaders {5077} Caterpillar


Ride Control Performance Improved On Certain F and F2 Series Backhoe Loaders {5077}

Usage:

427F2 HWK
Backhoe Loader
422F (S/N: LRH1-2375)
422F2 (S/N: LYF1-1011)
427F2 (S/N: HWK1-453)
428F (S/N: LBH1-33976; SJW1-707)
428F2 (S/N: LYG1-3459; HWN1-1294)
432F (S/N: HRH1-201; SEJ1-895; LNR1-1287; PXR1-893)
432F2 (S/N: LYJ1-1001; HWP1-2350)
434F (S/N: LDH1-947)
434F2 (S/N: LYK1-40533; HWR1-369)
444F (S/N: LJJ1-528)
444F2 (S/N: LYL1-557; HWS1-731)

Description Of Change: The current accumulator charge is rated for the heaviest loader configuration of the machines, which may not suit the lighter buckets. The ride control accumulator has been changed to reduce the gas pressure. The current accumulator pressure is set to 24 bar (350 psi) where the new accumulator pressure is set to 18 bar (260 psi).Current F and F2 series, machines can also be adjusted by reducing the machines current accumulator nitrogen gas pre-chamber from 24 bar (350 psi) to 18 bar (260 psi).

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

Table 1
Required Parts 
Qty  New Part Number  Part Name  Former Part Number(1) 
345-3672  Ride Control Accumulator Gp  382-8033 
(1) The former part number listed is for reference only and may differ.

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