2009/09/30 Caterpillar


An Improved Breaker Valve on the Hydraulic Tank Increases Reliability {5056, 5057}

Usage:

966H A6D
Integrated Toolcarrier:
IT62H (S/N: M5G1-UP)
Wheel Loader:
950H (S/N: JAD1-UP; N1A1-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 SEPD1012, 30 September 2009, "An Improved Breaker Valve on the Hydraulic Tank Increases Reliability". Disregard this article. Refer to the article that follows:

Description of Change: An adapter assembly is installed under the breaker valve on the hydraulic oil tank for certain Wheel Loader and Integrated Toolcarrier machines. The adapter assembly will raise the breaker relief valve in order to prevent hydraulic oil leakage from the tank.

Adaptable To: The 3T-4965 O-Ring Adapter and the 3D-2824 O-Ring Seal will be installed on the hydraulic tank below the 220-0814 Breaker Relief Valve on machines currently in the field.




Illustration 1g01840733

(1) 220-0814 Breaker Relief Valve




Illustration 2g02148944

(1) 220-0814 Breaker Relief Valve

(2) 3D-2824 O-Ring Seal

(3) 3T-4965 O-Ring Adapter

The adapter and o-ring are 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; TAL1-177; RYF1-301)

  • 972H (S/N: A7D1-822; A7G1-1256; A7J1-394; WLA1-9)

  • IT62H (S/N: M5G1-474)

This change is effective in production on the following machines:

Note: Modifications have been made to the hydraulic tank on production machines. A wire mesh filter and a plate have been added in order to prevent splashing. This modification allows the breaker valve to be used without the adapter.

  • 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; TAL178-UP; RYF302-UP)

  • 972H (S/N: A7D823-UP; A7G1257-UP; A7J395-UP; WLA10-UP)

  • IT62H (S/N: M5G475-UP)

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