2005/05/09 Caterpillar

A New Accumulator Charging Valve (Brake) is Available for Parts Service that Improves Service Life. {4264}

Usage:

Integrated Toolcarrier: IT38G Series II (S/N: CSX1-UP) IT38G (S/N: 7BS1-UP; 1CW1-UP) IT62G Series II (S/N: AYA1-UP) IT62G (S/N: AKP1-UP; 6PS1-UP)
Wheel Loader: 938G Series II (S/N: RTB1-UP; CRD1-UP; PHN1-UP) 938G (S/N: 4YS1-UP; 6WS1-UP; 8RS1-UP; 9HS1-UP) 950G (S/N: 2JS1-UP; 4BS1-UP; 6NS1-UP; 3JW1-UP; 5FW1-UP; 5MW1-UP; 8JW1-UP) 962G (S/N: BDP1-UP; 3BS1-UP; 5AS1-UP; 5RS1-UP; 4PW1-UP; 6EW1-UP; 6HW1-UP; 7BW1-UP) 966G Series II (S/N: AXJ1-453; AWY1-303) 966G (S/N: AAH1-UP; 3ZS1-767; 9RS1-UP; 3PW1-UP; 3SW1-1444; 8XW1-UP) 972G Series II (S/N: AXC1-488; AXP214-4574; AXN1-232) 972G (S/N: 7LS1-438; AAW1-UP; 1EW1-UP; 4WW1-780; 6AW1-UP; 9GW1-UP) 980G (S/N: 9CM784-2141; 2KR1537-4552; 2SR429-820)

Reference: Refer to Disassembly and Assembly, SENR1392, "950G and 962G Wheel Loaders and IT62G Integrated Toolcarrier Machine Systems", "Accumulator Charging Valve (Brake) - Remove and Install" for the 950G and 962G Wheel Loaders and the IT62G Integrated Toolcarrier.

Reference: Refer to Disassembly and Assembly, RENR4323, "950G Series II and 962G Series II Wheel Loaders and IT62G Series II Integrated Toolcarrier Machine Systems", "Accumulator Charging Valve (Brake) - Remove and Install" for the 950G Series II and 962G Series II Wheel Loaders and the IT62G Series II Integrated Toolcarrier.

Reference: Refer to Disassembly and Assembly, RENR2116, "966G Wheel Loader and 972G Wheel Loader Machine Systems", "Accumulator Charging Valve (Brake) - Remove and Install" for the 966G and 972G Wheel Loaders.

Reference: Refer to Disassembly and Assembly, RENR4366, "966G Series II Wheel Loader and 972G Series II Wheel Loader Machine Systems", "Accumulator Charging Valve (Brake) - Remove and Install" for the 966G Series II and 972G Series II Wheel Loaders.

Reference: Refer to Disassembly and Assembly, SENR5885, "980G Wheel Loader Machine Systems", "Accumulator Charging Valve (Brake) - Remove and Install" for the 980G Wheel Loader.

Reference: Refer to Disassembly and Assembly, SENR6798, "938G Wheel Loader and IT38G Integrated Toolcarrier Machine Systems", "Accumulator Charging Valve (Brake) - Remove and Install" for the 938G Wheel Loader and the IT38G Integrated Toolcarrier.

Reference: Refer to Disassembly and Assembly, RENR6081, "938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems", "Accumulator Charging Valve (Brake) - Remove and Install" for the 938G Series II Wheel Loader and the IT38G Series II Integrated Toolcarrier.

Description of Change: A new Accumulator Charging Valve (Brake) has replaced the existing Accumulator Charging Valve (Brake) for parts service for the above listed machines. The new Accumulator Charging Valve (Brake) has a hardened insert and improved stability of the spool for increased service life.

Adaptable To: The 256-0247 Accumulator Charging Valve (Brake) has replaced the 135-4391 Accumulator Charging Valve (Brake) for parts service. The 256-0247 Accumulator Charging Valve (Brake) is adaptable to first production of the listed machines. The 139-3285 Repair Kit services the old charge valve and the new charge valve. Use the 256-0247 Accumulator Charging Valve (Brake) when you service 135-4391 Accumulator Charging Valve (Brake). When you are servicing a charge valve, check the part number that is stamped on the end of the plug (14).

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Illustration 1	g01163299
135-4391 Accumulator Charging Valve (Brake) has five lines that are coming in and out. (10) Accumulator Charging Valve (14) Part number and Serial number