2007/12/10 Caterpillar

Wheel Tractor-Scraper:

631E (S/N: 1AB1-1445; 1NB1-871; 3ND1-522)

631ESeries II (S/N: 1AB1446-UP; 1NB872-UP; 3ND523-UP)

631G (S/N: DFA1-UP; AWK1-UP; CLR1-UP)

633ESeries II (S/N: 2PS1-UP)

637E (S/N: 1FB1-531)

637ESeries II (S/N: 1FB532-UP)

637G (S/N: CEH1-UP; DFJ1-UP; AXT1-UP)

Description of Change: A hose assembly has been lengthened by 10 mm (0.4 inch). Assembly of the hose will be easier and the seal of the O-ring will improve. The new length will provide a more rugged design for use in the field.

Adaptable To:

Illustration 1	g01422865

The updated 235-8488 Hose As (1) is now part of the 6G-9610 Cushion-Hitch Lines Gp. The updated hose assembly is adaptable back to the above listing. The updated hose became effective in production with the machines DFA331-UP and DFJ365-UP.