Kohler EKOZD Series User Manual

TP-6953 7/19 Table of Contents 5
9.2.1 Removal 155.....................................................
9.2.2 Installation 155...................................................
9.3 General Information 155...................................................
9.4 Leads/Wires/Connectors/Wiring Harnesses 155...............................
9.4.1 24- to 12-Volt Converter
(32/40EKOZD and 28/35EFKOZD 24-Volt Models Only) 156............
9.5 Crank Relay 157..........................................................
9.6 Current Transformers 157..................................................
9.6.1 Function and Application 157.......................................
9.6.2 Testing 158......................................................
9.7 Engine Pressure and Temperature Sensors 158...............................
9.7.1 General 158......................................................
9.7.2 Sensor Types 158.................................................
9.7.3 Switch Testing 159................................................
9.7.4 Sender Testing 159...............................................
9.7.5 Oil Pressure Sender (OPS) Testing 159..............................
9.7.6 Coolant Temperature Sender (CTS) Testing 159.......................
9.8 Powering Up the ECU without Cranking the Engine 160........................
9.9 Fault Warning and Shutdown Testing 161....................................
9.10 Motor-Operated Circuit Breakers (if equipped) 163............................
9.10.1 Automatic Closing of the Breaker 163...............................
9.10.2 Automatic Opening of the Breaker 165...............................
9.10.3 Synchronization of the Generator Output to the Paralleling Bus 165......
9.10.4 Troubleshooting Non-Operating Breaker 166..........................
9.11 Battery Charging Module, 13- 24EKOZD/12- 20.5EFKOZD
Original (12/24 V olt: GM77373) 170.........................................
9.12 Battery Charging Module, 13- 24EKOZD/12- 20.5EFKOZD
Revised (12 Volt: GM105398 and 24 Volt: GM105399) 170.....................
9.12.1 Three Stage Charge Cycle 170.....................................
9.12.2 Protection Modes 171.............................................
9.12.3 Charger Operation 171............................................
9.12.4 Charger Troubleshooting 172.......................................
Section 10 Alternator Component Testing and Adjustment
(11- 32 kW Generator Sets Equipped with 4D/4E Alternators) 173..................................
10.1 Introduction 173..........................................................
10.2 Separate Excitation 174...................................................
10.3 Exciter Field 175..........................................................
10.3.1 Exciter Armature 176..............................................
10.3.2 Rectifier Module 177..............................................
10.4 Rotor (Main Field) 177.....................................................
10.5 Stator 179...............................................................
10.6 Voltage Regulator 181.....................................................
10.7 Activator Board GM88453 181..............................................
10.7.1 General 181......................................................
10.7.2 Theory of Operation 181...........................................
10.7.3 Activator Board Function and Connections 182........................
10.7.4 Activator Board Troubleshooting 182................................
Section 1 1 Alternator Component Testing and Adjustment
(35- 40 kW Generator Sets Equipped with 4PX/4QX Alternators) 187...............................
11.1 Introduction 187..........................................................
11.2 Alternator Troubleshooting 187.............................................
11.2.1 Troubleshooting Alternator, No Output Voltage 189....................
11.2.2 Troubleshooting Alternator, Overvoltage 190
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11.2.3 Troubleshooting Alternator, Fluctuating Voltage 191....................
11.3 LED Optic Board Test 192..................................................
11.4 FRX Activator Board Test 194..............................................
11.5 Exciter Armature Test 196..................................................
11.6 Rotor Assembly Field Winding Test 198......................................
11.7 Stator Assembly Winding Test 199..........................................

Kohler EKOZD Series Specifications

General

Brand	Kohler
Model	EKOZD Series
Category	Portable Generator
Language	English