2010/04/29 Caterpillar

The New Hose Routing Improves the Durability of the Hydraulic Load Sensing Signal Line and Drain Line {5057}

Usage:

966H A6D

Integrated Toolcarrier: IT62H (S/N: M5G1-UP)
Wheel Loader: 950H (S/N: N1A1-UP; JAD1-UP; M1G1-UP; J5J1-UP; K5K1-UP) 962H (S/N: N4A1-UP; M3G1-UP; J6J1-UP; K6K1-UP) 966H (S/N: A6D1-UP; RYF1-UP; A6G1-UP; A6J1-UP; TAL1-UP) 972H (S/N: WLA1-UP; A7D1-UP; A7G1-UP; A7J1-UP)

Service Magazine SEPD0990, 05 April 2009, "The New Hose Routing Improves the Durability of the Hydraulic Load Sensing Signal Line and Drain Line". Disregard this article. Refer to the article that follows:

Description of Change: The routing of the hydraulic load sensing signal line and drain line have been improved. The hose assemblies are routed through mounts that swivel in order to allow movement of the hose assemblies. The use of a shorter hose guard also relieves stress on the hose assemblies.

Adaptable To: The new hose routing is adaptable to the following machines:

950H (S/N: J5J1-1500; JAD1-105; K5K1-2760; M1G1-1752; N1A1-3199)
962H (S/N: J6J1-311; K6K1-425; M3G1-541; N4A1-1253)
966H (S/N: A6D1-2356; A6G1-3916; A6J1-1592; RYF1-301; TAL1-177)
972H (S/N: A7D1-822; A7G1-1256; A7J1-394; WLA1-9)
IT62H (S/N: M5G1-474)

The new hose routing is effective in production on the following machines:

950H (S/N: J5J1501-UP; JAD106-UP; K5K2761-UP; M1G1753-UP; N1A3200-UP)
962H (S/N: J6J312-UP; K6K426-UP; M3G542-UP; N4A1254-UP)
966H (S/N: A6D2357-UP; A6G3917-UP; A6J1593-UP; RYF302-UP; TAL178-UP)
972H (S/N: A7D823-UP; A7G1257-UP; A7J395-UP; WLA10-UP)
IT62H (S/N: M5G475-UP)

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Table 1
Parts Needed for the New Hose Routing.
Part Number	Description	Quantity
200-6345	Mount	2
204-2281	Tie Strap	4
337-3953	Hose Guard	1

The hydraulic load sensing signal lines are routed through two 200-6345 Mounts and four 204-2281 Tie Straps. The 273-1751 Hose Guard is replaced by 337-3953 Hose Guard.

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Illustration 1	g01893393
The current hose routing for 950H and 962H is displayed on the left. The new hose routing is shown on the right. (1) 243-6533 Hose As (2) 273-1751 Hose Guard (3) 243-6535 Hose As (4) 200-6345 Mount (5) 204-2281 Tie Strap (6) 337-3953 Hose Guard

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Illustration 2	g01893674
The current 966H and 972H hose routing is shown on the left. The new hose routing is shown on the right. (4) 200-6345 Mount (5) 204-2281 Tie Strap (6) 337-3953 Hose Guard (7) 243-4624 Hose As (8) 243-4623 Hose As (9) 273-1751 Hose Guard