Kohler 7.3ECD Service Manual

Table of Contents
TP-6391 9/08 Table of Contents 3
Safety Precautions and Instructions 5........................................................
Introduction 9...............................................................................
Service Assistance 10........................................................................
Section 1 Specifications 11...................................................................
1.1 Introduction 11..........................................................
1.2 Generator Set Ratings 11.................................................
1.3 Controller Specifications 11...............................................
1.4 Alternator Specifications 11...............................................
1.5 Alternator Specifications, Continued 12.....................................
1.6 Torque Specifications 12..................................................
1.7 Engine Specifications 13..................................................
1.8 Service View 14.........................................................
Section 2 Scheduled Maintenance 15..........................................................
2.1 General 15..............................................................
2.2 Service Schedule 16.....................................................
Section 3 Troubleshooting 17.................................................................
3.1 Introduction 17..........................................................
3.2 Initial Checks 17.........................................................
3.3 Troubleshooting Chart 17.................................................
Section 4 Controller 23.......................................................................
4.1 Introduction 23..........................................................
4.2 Controller Display and Keypad 24..........................................
4.3 Master Switch 24........................................................
4.4 Sequence of Operation 25................................................
4.4.1 Starting the Generator Set 25......................................
4.4.2 Running Sequence 25............................................
4.4.3 Stopping the Generator Set 25.....................................
4.5 Faults 25...............................................................
4.5.1 Shutdowns 25...................................................
4.5.2 Warnings 25.....................................................
4.5.3 SECM Fault Codes and Diagnostics 29.............................
4.6 Relay Interface Board (RIB) 35............................................
4.7 CO Sensor Module 35....................................................
4.8 K5 Main Power Relay 35..................................................
4.9 Silicon Controlled Rectifier (SCR) Module 36................................
4.10 Controller Replacement 37................................................
4.11 Controller Configuration and Adjustment 38.................................
4.11.1 Voltage Adjustments 38...........................................
4.11.2 Controller Configuration 41........................................
Section 5 Component Testing and Adjustment 45..............................................
5.1 Theory of Operation 45...................................................
5.2 Separate Excitation 45....................................................
5.3 Stator 47................................................................
5.4 Main Field (Rotor) 48.....................................................
5.4.1 Rotor Continuity and Resistance Tests 48...........................
5.5 Slip Rings 50............................................................
5.6 Brushes
50..............................................................
5.7 Voltage 51..............................................................
5.7.1 Voltage Regulation 51............................................
5.7.2 Voltage Adjustment 51............................................

Kohler 7.3ECD Specifications

General

Brand	Kohler
Model	7.3ECD
Category	Marine Equipment
Language	English