Kohler 38RCLB

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TP-6907 5/16 85Section 6 Component Testing and Adjustment

1. Engine Speed Adjustment

2. Engine Run Speed Setting (changes automatically with Genset System Frequency)

3. Genset System Frequency Setting (50 or 60 Hz)

Figure 6-6 Engine Speed and Frequency Adjustments in SiteTech

Main Page

Table of Contents3
Safety Precautions and Instructions5
Introduction11
List of Related Materials11
Service Assistance12
Section 1 Specifications13
Introduction13
Controller Specifications13
Engine Service13
Engine Specifications13
Alternator Specifications13
Torque Specifications13
Service Views14
Section 2 Scheduled Maintenance17
General Maintenance17
Service Schedule19
Lubrication System20
Oil Specifications20
Oil Check20
Oil Additions20
Oil and Filter Change20
Air Cleaner21
Exhaust System22
Spark Plug23
Battery25
Checking Electrolyte Level25
Checking Specific Gravity26
Fuel System Maintenance27
Section 3 Controller29
Introduction29
Sitetech and Oncue Plus Software29
Controller Parameters30
Controller Parameters Table30
Notes on Selected Parameters30
Controller Firmware44
Controller Replacement45
Controller Setup47
Voltage Calibration50
Calibration Using the RDC2 Controller Keypad and Menus50
Calibration Using Sitetech52
Setting the Oncue Plus Password53
Section 4 Cooling System55
General55
Inspecting the Cooling System55
Cleaning the Radiator Fins and Inspecting the Hoses56
Engine Thermostat57
Checking and Filling Coolant57
Draining Cooling System58
Flushing and Cleaning58
Filling the Cooling System58
Pressure Cap58
Cooling Fans59
Fan Operation59
Fan Troubleshooting Guide60
Section 5 Troubleshooting61
Introduction61
Theory of Operation, Electronic Start Sequence61
Initial Checks62
Line Circuit Breaker63
Fuses63
Controller Internal Circuit Protection63
Fuel System Troubleshooting63
USB Port Access63
Fault Messages64
Status Messages71
Generator Set Troubleshooting73
Controller Troubleshooting77
Section 6 Component Testing and Adjustment79
Alternator Excitation Troubleshooting79
Low to no Voltage Operation79
Erratic Voltage Regulation80
Overvoltage Condition80
Voltage Connections81
Additional Alternator Service Information81
Voltage Adjustments81
Voltage Adjustments Using Sitetech81
Voltage Regulator Average Voltage Adjustment82
Volts/Hz Slope and Cut-In Frequency83
Voltage Regulator Gain83
Frequency Adjustment84
Engine Speed Governor Settings84
Hunting/Surging84
Generator Set Switches86
Engine Compartment Air Temperature Sensor86
Other Switches and Sensors86
Fuel Systems87
Fuel Solenoid Valves87
Checking the Fuel Pressure88
Fuel Conversion Procedures89
Section 7 Disassembly/Reassembly91
Introduction91
Initial Steps92
Enclosure Disassembly93
Connection Box Disassembly94
Alternator Disassembly95
Engine Disassembly96
Engine Reassembly98
Alternator Reassembly99
Connection Box Reassembly100
Enclosure Reassembly101
Final Steps102
Section 8 Diagrams and Drawings103
Appendix A Abbreviations117
Appendix B Common Hardware Application Guidelines119
Appendix C General Torque Specifications120
Appendix D Common Hardware Identification121
Appendix E Common Hardware List122

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