TACHOMETER GP 4620991 - Caterpillar

Excavator:
322C (S/N: EMR1-UP; MAR1-UP)
325C (S/N: CRB1-UP; BFE1-UP; CSJ1-UP)
330C (S/N: HAA1-UP; JCD1-UP; GAG1-UP; BTM1-UP; CAP1-UP; DKY1-UP)
Track-Type Tractor:
D6N (S/N: ALR1-UP; ALY1-UP)
D6R Series II (S/N: BNC1-UP; ADE1-UP; DAE1-UP; ACJ1-UP; BMJ1-UP; AEP1-UP; AAX1-UP; BMY1-UP; BRZ1-UP)
Wheel Loader:
938G Series II (S/N: PHN1-UP)
950G Series II (S/N: AYB1-UP; AYL1-UP)
962G Series II (S/N: BAB1-UP; AYE1-UP)
Troubleshooting Guide, SENR9503, "C-9 Engines for Caterpillar Built Machines". This Troubleshooting Guide appears in the following Service Manuals: RENR4250, RENR4265.Troubleshooting Guide, SENR9506, "C-9 Engines for Caterpillar Built Machines". This Troubleshooting Guide appears in the following Service Manuals: RENR5430, RENR5440, RENR5450.Troubleshooting Guide, SENR9582, "3126B Engine for Caterpillar Built Machines". This Troubleshooting Guide appears in the following Service Manuals: RENR5380, RENR5390, RENR7200.Troubleshooting Guide, SENR9617, "3126B Engine for Caterpillar Built Machines". This Troubleshooting Guide appears in the following Service Manual: RENR4302.The following updates have been made to the above-listed troubleshooting guides and the latest Caterpillar ET Service Pack (ET2003A-SP1).
Fuel system troubleshooting steps have been changed, creating a new fuel system troubleshooting process
Diagnostic code descriptions have been changed for the following diagnostic codes: 164-02, 164-03, 164-04, 164-11The new troubleshooting procedures and updated diagnostic code descriptions will help in fuel system troubleshooting.