2005/11/21 Caterpillar

Wheel Tractor-Scraper:

631G (S/N: CLR400-UP)

637G (S/N: CEH350-UP)

Reference: Special Instruction, REHS2835, "Procedure to Rework the Cusion-Hitch Lines"

Description of Change: A new hose assembly, a new tube assembly, added hardware and an improved hose routing are now used. The new hose assembly and new tube assembly have an increased service life. The new routing of the cushion-hitch lines provides added reliability.

Adaptable To: The 236-9820 Tube As has been cancelled and replaced by 272-5567 Tube As. The 246-8296 Hose As has been cancelled and replaced by 272-5566 Hose As. Additional parts are now used to improve the routing of the return lines for the cushion-hitch.

The new hose assembly, new tube assembly, new hardware and improved routing are effective with the following machines:

• 631G (S/N: CLR593-UP)

• 637G (S/N: CEH425-UP)

The new hose assembly, new tube assembly, new hardware and improved routing are adaptable to the following machines:

• 631G (S/N: CLR400-592)

• 637G (S/N: CEH350-424)

Refer to Special Instruction, REHS2835, "Procedure to Rework the Cushion-Hitch Lines" for the procedure to rework the cushion-hitch lines.