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Onan NH Series - User Manual

Onan NH Series
59 pages
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1
.''
OPERATOR'S
MANUAL
AND
PARTS CATALOG
FOR
NH
SERIES
ELECTRIC
GENERATING
SETS
ft
940-0301
4AF74
Printed In U.S.A.

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Onan NH Series Specifications

General IconGeneral
Frequency60 Hz
Engine Type4-Cycle
Fuel TypeGasoline
Starting SystemElectric
Voltage120/240V
Noise Level72 dB(A) at 7 meters
Fuel Consumption0.5-1.0 gal/hr (gasoline)

Summary

Specifications and Tune-Up Details

Tune-Up Specifications

Details on spark plug gap, ignition timing, and valve adjustments for optimal performance.

Installation Guidelines

Fuel System Setup

Fuel Connection and Supply

Procedures for connecting gasoline and gaseous fuel lines, including safety precautions.

Control Systems and Wiring

Solid State Control System (Spec D)

Overview of the solid state control system for starting, stopping, and monitoring.

Grounding and Load Wiring

Generator Grounding Procedures

Safety instructions for properly grounding the generating set to prevent electrical hazards.

Control Board Components and Connections

Generator Operation

Before Starting and Break-In

Essential pre-operation checks, oil/fuel filling, and initial break-in procedures for new units.

Gasoline Engine Troubleshooting

Maintenance Schedules and Procedures

Periodic Maintenance Schedule

A detailed schedule of service items and intervals for regular upkeep.

Engine Oil and Filter Service

Procedures for checking oil level, changing oil and filter, and crankcase breather maintenance.

Engine Adjustments

Carburetor Adjustments

Steps for adjusting the carburetor for correct fuel-to-air mixture and smooth operation.

Governor Adjustments and Sensitivity

Procedures for adjusting the governor for stable engine speed under varying load conditions.

Parts Catalog

Ordering Repair Parts

Instructions on how to correctly order replacement parts, including required information.

Customer Services and Warranty

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