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Onan MDKBN - Service Manual

Onan MDKBN
93 pages
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Table of Contents

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Onan MDKBN Specifications

General IconGeneral
BrandOnan
ModelMDKBN
CategoryPortable Generator
LanguageEnglish

Summary

Safety Precautions

Operation

Pre-Start Checks

Essential checks before starting the genset, including exhaust gas safety.

Starting the Genset

Steps for starting the genset from the control panel or remote panel.

Periodic Maintenance

General Inspection

Daily and pre-operation inspection of the genset's systems.

Changing Engine Oil and Filter

Detailed steps for changing the engine oil and oil filter.

Draining and Replacing Fuel Filters

Instructions for draining water and sediment and replacing fuel filters.

Maintaining Engine Cooling System

Overview and procedures for maintaining the engine's liquid cooling system.

Genset Control

Controller Configuration and Replacement

Steps for configuring and replacing the genset controller unit.

Engine and Accessories

Major Engine Service

Procedures for major engine service based on the Engine Workshop Manual.

Fuel System

Overview of the fuel system, including filter maintenance and pump testing.

Generator

Generator Overview

Description of the 4-pole, rotating-field, brushless generators and their operation.

Generator Testing Procedures

Procedures for winding insulation resistance and winding resistance tests.

Generator Disassembly

Step-by-step instructions for disassembling the generator.

Generator Reassembly and Reconnection

Procedures for reassembling and reconnecting the generator.

Reconfiguring Voltage and Frequency

Adjusting Voltage with Digital Display

Procedure for adjusting genset output voltage using the digital display.

Adjusting Voltage with Control Switch

Procedure for adjusting genset output voltage using the control switch.

Troubleshooting

Troubleshooting with Digital Display

How to interpret fault codes and descriptions displayed on the e-Series Digital Display.

Troubleshooting with Status Lamp

Interpreting blinking codes on the control switch status lamp for fault diagnosis.

No Response at Display or Control Switch

Troubleshooting steps for genset control or display not responding.

No AC Power When Running

Troubleshooting steps for situations where the genset is running but producing no AC power.

High Engine Temperature

Corrective actions for genset shutdown due to high engine coolant temperature.

Low Oil Pressure

Corrective actions for genset shutdown due to low engine oil pressure.

Overcrank Code No. 4

Corrective actions for genset shutdown due to excessive cranking time.

Vessel CO Shutdown Code No. 5

Immediate actions required for genset shutdown due to dangerous carbon monoxide levels.

Loss of Raw Water Flow Code No. 7

Corrective actions for genset shutdown due to loss of raw water flow for cooling.

High AC Voltage Code No. 12

Troubleshooting steps for excessive AC output voltage.

Low AC Voltage Code No. 13

Corrective actions for genset shutdown due to low AC output voltage.

High AC Frequency Code No. 14

Troubleshooting steps for genset shutdown due to high AC output frequency.

Low AC Frequency Code No. 15

Corrective actions for genset shutdown due to low AC output frequency.

Governor Overload Code No. 22

Corrective actions for genset shutdown due to exceeding governor overload limits.

Faulty Oil Pressure Sender Code No. 23

Troubleshooting steps for a faulty oil pressure sender.

Faulty Temperature Sender Code No. 24

Corrective actions for a faulty engine coolant temperature sender.

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