2010/12/24 Caterpillar

Integrated Toolcarrier:

IT62H (S/N: M5G1-UP)

Wheel Loader:

950H (S/N: N1A1-UP; M1G1-UP; J5J1-UP; K5K1-UP)

962H (S/N: N4A1-UP; M3G1-UP; J6J1-UP; K6K1-UP)

966H (S/N: A6D1-UP; A6G1-UP; A6J1-UP)

972H (S/N: WLA1-UP; A7D1-UP; A7G1-UP; A7J1-UP)

Description of Change: The new relief valve groups will have a proper seating in the control valve group (tilt). The increased torque for the new relief valve groups will prevent external leaks. The new relief valve groups have a more robust design.

Adaptable To: The new 332-1985 Relief Valve Gp is a direct replacement for the former 256-2866 Relief Valve Gp, new 332-1986 Relief Valve Gp is a direct replacement for the former 276-7521 Relief Valve Gp, and 332-1987 Relief Valve Gp is a direct replacement for the former 272-7003 Relief Valve Gp .

The new 332-1985 Relief Valve Gp, 332-1986 Relief Valve Gp, and 332-1987 Relief Valve Gp are part of control valve groups (tilt) in the main control valve group.

Illustration 1	g02289833
Typical example Control valve group (tilt) (1) New relief valve groups

The new 332-1985 Relief Valve Gp is adaptable to the serial numbers and effective in production with serial numbers that are listed in Table 1.

Table 1

Sales Model	Adaptable Serial Numbers	Effective Serial Numbers
950H	S/N:N1A1-4000	S/N:N1A4001-UP
	S/N:M1G1-1940	S/N:M1G1941-UP
	S/N:J5J1-1511	S/N:J5J1512-UP
	S/N:K5K1-82298	S/N:K5K82299-UP
962H	S/N:K6K1-517	S/N:K6K518-UP
	S/N:M3G1-568	S/N:M3G569-UP
966H	S/N:A6D1-2567	S/N:A6D2568-UP
	S/N:A6G1-5000	S/N:A6G5001-UP
	S/N:A6J1-1625	S/N:A6J1626-UP
972H	S/N:WLA1-9	S/N:WLA10-UP
	S/N:A7D1-933	S/N:A7D934-UP
	S/N:A7G1-1312	S/N:A7G1313-UP
	S/N:A7J1-406	S/N:A7J407-UP

The new 332-1986 Relief Valve Gp is adaptable to the serial numbers and effective in production with serial numbers that are listed in Table 2.

Table 2

Sales Model	Adaptable Serial Numbers	Effective Serial Numbers
966H	S/N:A6D1-2567	S/N:A6D2568-UP
	S/N:A6G1-5000	S/N:A6G5001-UP
	S/N:A6J1-1625	S/N:A6J1626-UP

The new 332-1987 Relief Valve Gp is adaptable to the serial numbers and effective in production with serial numbers that are listed in Table 3.

Table 3

Sales Model	Adaptable Serial Numbers	Effective Serial Numbers
950H	S/N:N1A1-4000	S/N:N1A4001-UP
	S/N:M1G1-1940	S/N:M1G1941-UP
	S/N:J5J1-1511	S/N:J5J1512-UP
	S/N:K5K1-82298	S/N:K5K82299-UP
962H	S/N:K6K1-517	S/N:K6K518-UP
	S/N:M3G1-568	S/N:M3G569-UP
	S/N:N4A1-1286	S/N:N4A1287-UP
	S/N:J6J1-508	S/N:J6J509-UP
IT62H	S/N:M5G1-601	S/N:M5G602-UP