CUMMINS Onan User Manual

Operating in Cold Weather
• Verify the fuel and engine oil are appropriate for ambient operating temperature.
• Check the altitude setting as necessary (if equipped).
• Perform spark plug (if equipped) and battery maintenance according to the maintenance
schedule in the Operator’s Manual.
Operating in Hot Weather
• Make sure nothing blocks airflow into and out of the generat
or
set.
• Verify
the
f
uel a
nd engine oil a
re appropriate for ambient operating temperature.
Operating
i
n Dusty
E
nvironments
• Do n
ot let d
irt a
nd d
ebris accumulate inside the generator set compartment.
• Perform air cleaner maintenance more often.
• Change engine oil more according to the maintenance schedule in the Operator's manual.
• Keep new maintenance parts and fluids free of dirt and debris before use.
Resetting Circuit Breakers
If a circuit breaker trips (circuit shorted or too many appliances running), disconnect or
turn off as many loads as possible and reset the circuit breaker. Note that the generator set
will continue to run after a circuit breaker trips. Push the circuit breaker to OFF to reset it,
and push ON to reconnect the circuit. If the circuit breaker trips right away, either the
appliance (or electrical load) has a short or the circuit breaker is faulty. Call a qualified
technician.
Power vs. Altitude
The air density decreases as altitude increases, causing the generator set’s engine power to
decrease. Power decreases approximately 3.5 percent of rated power for each increase of
305 m (1000 feet). It may be necessary to run fewer appliances at higher altitudes.
Storing the Generator Set
Proper storage is essential for preserving top generator set performance and reliability
when the generator set cannot be exercised regularly and will be unused for more than
120 days. See the Operator’s Manual for proper storage procedures.
Manufacturer Name and Address
Cummins Inc.
1400 73rd Ave NE Fridley, MN 55432
Online Access to Information
To order a hardcopy manual, please visit the Elander's online ordering system
https://cummins.elandersamerica.com.
Manuals are updated to reflect any changes in the equipment and its specifications. The
most up-to-date versions of the manuals are found on the Cummins QuickServe Online
website https://quickserve.cummins.com and https://www.cummins.com/rv-generator-
manuals.
To find your local Dealer or Distributor, please visit
https://www.cummins.com/sales-and-service.
Onan Generator Set
Quick Start Guide
English
Original Instructions
3-2020
A062P264 (Issue 3)
Copyright © 2020 Cummins I
nc.
All rights reserved.
C
ummi
ns
, Onan, and the "C" logo are registered trademarks of Cummins Inc. and its subsidiaries.
Other company, product, or service names may be trademarks or service marks of others.
Specifications are subject to change without notice.
To download the owners and installation
manuals, scan the QR code using a smartphone
or tablet equipped with a capable camera or QR
code reader app.

CUMMINS Onan Specifications

General

Brand	CUMMINS
Model	Onan
Category	Portable Generator
Language	English

Summary

Generator Operation and Maintenance

Resetting Circuit Breakers

How to reset tripped circuit breakers on the generator set if they trip due to overload or short circuit.

Power vs. Altitude

How altitude affects generator set power output and operation, with power decreasing 3.5% per 1000 feet.

Storing the Generator Set

Procedures for proper storage of the generator set when it will be unused for more than 120 days.

Generator Set Identification and Installation

Generator Set Model and Nameplate

Details about the generator set model and its nameplate information, including spec number.

Installation Guidelines

Important notes and instructions for installing the generator set, especially for RV use.

Carbon Monoxide (CO) Safety

Critical safety precautions related to carbon monoxide produced by the generator set.

Operational Checks and Procedures

Conducting General Inspections

Daily and periodic checks to ensure the generator set is operating correctly and safely.

Pre-Start Checks

Essential checks to perform before starting the generator set for operation.

Priming the Fuel System

Procedure to prime the fuel system when the generator set runs out of fuel.

Generator Set Operation and Components

Starting the Generator Set

Step-by-step instructions for starting the generator set using the control panel.

Stopping the Generator Set

Procedure for safely stopping the generator set after operation.

Breaking in a New Generator Set

Essential break-in procedures for new or rebuilt generator sets for optimal performance.

Loading the Generator Set

Guidance on applying loads to the generator set without exceeding its power rating.

System Requirements and Safety Warnings

Vapor Tightness and Exhaust Tailpipe Endings

Requirements for exhaust system gas-tightness and tailpipe termination to prevent vehicle interior contamination.

Fuel Line Requirements

Specifications for fuel lines, including separation from electrical wiring and exhaust components.

Enclosure and Chassis

Information on the generator set enclosure, chassis, and their role in reducing noise and vibration.

Generator Set Clearances and Warning Labels

Generator Set Compartment Clearances

Table detailing required clearances for generator set compartments based on fuel type and model.

Generator Set Warning Labels

Description of various warning signs found on the generator set and their meanings.