Kohler Decision-Maker 340

Table of Contents
TP-6356 4/12 Table of Contents 3
Product Identification Information 2............................................................
Safety Precautions and Instructions 9........................................................
Introduction 15...............................................................................
List of Related Materials 15.....................................................
Service Assistance 16........................................................................
Section 1 Specifications 17...................................................................
1.1 Introduction 17..........................................................
1.2 Controller Identification 17................................................
1.2.1 Decision-Makerr 117............................................
1.2.2 Decision-Makerr 3+ 17...........................................
1.2.3 Decision-Makerr 340 17..........................................
1.2.4 Decision-Makerr 550 17..........................................
1.2.5 Decision-Makerr 3000 18.........................................
1.2.6 Decision-Makerr 6000 18.........................................
1.3 Electrical Values 19......................................................
1.4 Pressure Senders 19.....................................................
1.5 Temperature Senders 19..................................................
1.6 Temperature Switches 20.................................................
1.7 Pressure Switches 21....................................................
1.8 Decision-Makerr 550 with Integrated Voltage Regulator 22....................
1.8.1 Features 22.....................................................
1.8.2 Specifications 22.................................................
1.8.3 Settings 22......................................................
1.9 Decision-Makerr 3000 with Integral Voltage Regulator 23.....................
1.9.1 Features 23.....................................................
1.9.2 Specifications 23.................................................
1.9.3 Settings 23......................................................
1.10 Decision-Makerr 6000 with Integral Voltage Regulator 24.....................
1.10.1 Features 24.....................................................
1.10.2 Specifications 24.................................................
1.10.3 Settings 25......................................................
Section 2 Decision-Makerr 1 Troubleshooting 27...............................................
2.1 General Information 27...................................................
2.2 Relay Controller 32.......................................................
2.3 Relay Controller Flowchart 33.............................................
Section 3 Decision-Makerr 3+ Troubleshooting 37..............................................
3.1 General Information 37...................................................
3.2 Circuit Board GM28725/GM64497 Terminal/Connector Identification 45.........
3.3 Fault Shutdowns 47......................................................
3.4 Relay Descriptions 48....................................................
3.5 Troubleshooting 49.......................................................
3.5.1 Fuses 50.......................................................
3.5.2 Controller Flowcharts 51..........................................
3.5.3 Red Main Logic Board and Blue Main Logic Board Troubleshooting 56..
3.6 FASTCHECKr Diagnostic Tool Features and Operation 57....................
3.6.1 Features 57.....................................................
3.6.2 Application 57...................................................
3.6.3 FASTCHECKr Diagnostic Tool 58..................................
3.6.4 Overcrank 58....................................................
3.6.5 Controller Speed Sensor Circuitry 59...............................
3.6.6 Generator Set Condition Indicator Terminal (TB1 Terminal Strip) 59.....