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Onan MDJF Series - User Manual

Onan MDJF Series
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OPERATORS
AND
ANUAL
FOR
O
nan
ELECTRIC
GENERATING
SETS
MDJF
SEkiES
t
968-0345
6Abt3
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Onan MDJF Series Specifications

General IconGeneral
BrandOnan
ModelMDJF Series
CategoryInverter
LanguageEnglish

Summary

General Information

Safety Symbols Explained

Explains symbols for equipment damage (Caution) and personal injury (Warning).

Specifications

Engine and Electrical Specifications

Details engine specs, electrical output, voltage, and frequency regulation.

Assembly Torques and Special Tools

Torque Specifications List

Lists torque values in ft-lb for various engine assembly components.

Recommended Service Tools

Details Onan tools available for service and repair work.

Installation

General Installation Guidelines

Covers key points for proper installation: cooling air, electrical, fuel, floor.

Water Intake and Siphon Break Installation

Instructions for water intake fittings and installing a siphon break kit.

Ventilation and Exhaust System Installation

Requirements for ventilation and exhaust systems, including safety warnings.

Muffler and Exhaust Tubing Installation

Instructions for securing muffler and routing exhaust tubing.

Location and Mounting Requirements

Guidance on selecting location and details for unit mounting and clearances.

Fuel System Installation

Guidance on fuel tank placement and connecting fuel lines.

Operation

Remote Controls and Battery Connections

Diagrams for remote control wiring and battery connections.

Battery Safety and Load Wiring

Cautions on battery polarity, load wiring, and balancing generator loads.

Output Lead Markings and Cooling Systems

Details on output lead markings, voltage selection, and heat exchanger cooling.

Starting Procedures and Fuel System Bleeding

Covers engine starting, fuel bleeding, and priming the fuel transfer pump.

Operating Cycle and Load Application

Explains the operating cycle, automatic start/stop, and applying load to the generator.

Standby Set Exercise and Break-in Procedure

Procedures for exercising standby sets and the recommended break-in sequence.

Safety Devices and Out-of-Service Protection

Details on safety devices, emergency operation, and storage preparation.

Remote Start-Stop and Load Connections

Wiring for remote controls and connecting AC load wires.

Adjustments

Governor Adjustment Diagram and Steps

Visual guide and steps for adjusting governor speed and sensitivity.

Governor Speed and Sensitivity Adjustment

Details on adjusting engine speed and governor sensitivity.

General Maintenance

Routine Generator Set Check Chart

Checklist for pre-operation inspection of generator set components.

Maintenance Schedule

Operator Maintenance Schedule

Table outlining routine maintenance tasks performed by the operator.

Critical Maintenance Schedule

Table detailing critical maintenance tasks performed by qualified personnel.

Troubleshooting Guide

Starting System Troubleshooting

Identifies causes for starting system issues like battery or starter problems.

Fuel System Troubleshooting

Lists common issues and causes related to the fuel system.

Lubrication System Troubleshooting

Troubleshooting guide for lubrication system problems.

Governor System Troubleshooting

Common issues and causes for governor system malfunctions.

Cooling System Troubleshooting

Troubleshooting steps for cooling system issues like leaks or overheating.

Internal Engine Troubleshooting

Identifies causes for internal engine problems like wear or valve issues.

Parts Catalog

Instructions for Ordering Repair Parts

Guidance on how to order parts, including necessary information.

Using Nameplate for Parts Orders

Emphasizes using Model, Spec, and Serial numbers for ordering.

Generator Group - Alternator Portion

Generator Group - Exciter Portion

Owners Marine Service Warranty

General Warranty Practices and Policies

Outlines warranty policies, registration, and allowances.

Maintenance Overview

Planned Preventive Maintenance Program

Emphasizes the importance of maintenance for efficient operation and longevity.

Maintenance Categories

Divides maintenance into operator and critical maintenance.

Installation Overview

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