XP12000DX - Generator DuroMax - Free user manual and instructions

Product Type	Portable Generator
Brand	DuroMax
Model	XP12000DX
Fuel Type	Dual Fuel (Gasoline / Propane)
Starting Watts	12,000 W
Running Watts	9,500 W
Engine Displacement	459 cc
Engine Type	4-Stroke OHV, Single Cylinder
Starting System	Electric & Recoil
Voltage	120/240V
Outlets	4x 120V 20A, 1x 120/240V 30A, 1x 120V 30A RV, 1x 120V 30A Twist Lock
Run Time (50% Load)	~10 hours (gasoline) / ~8 hours (propane)
Fuel Tank Capacity	8.3 gallons (31.4 L)
Oil Capacity	1.2 quarts (1.1 L)
Recommended Oil	SAE 10W-30 (for typical use)
Spark Plug	Toro 130-247 or NGK BPR6ES
Dimensions (L x W x H)	30 in x 26 in x 26 in (76 cm x 66 cm x 66 cm)
Weight	220 lbs (100 kg)
Noise Level	~74 dB(A) at 23 ft (7 m)
Safety Features	Low Oil Shutdown, Automatic Voltage Regulation, Circuit Breaker Protection
Maintenance	Oil change every 50 hours, air filter cleaning every 25 hours, spark plug replacement yearly
Warranty	2 years (consumer use) / 1 year (commercial use)
Included Accessories	Oil, funnel, spark plug wrench, wheel kit, battery charger

Frequently Asked Questions - XP12000DX DuroMax

What type of oil should I use in my DuroMax XP12000DX?

Use SAE 10W-30 engine oil for temperatures above 32°F (0°C). For colder climates, use SAE 5W-30. Always check oil level before starting.

How do I break in the generator?

Run the generator at 50% load for the first 20 hours, varying the load occasionally. Avoid prolonged heavy loads during break-in. Change oil after the first 20 hours.

Can I run the generator on propane?

Yes, the XP12000DX is dual fuel. It comes with a pre-installed propane hose. Simply connect to a propane tank (20 lb or larger) and switch the fuel selector.

What is the fuel consumption at half load?

On gasoline: approximately 0.83 gallons/hour. On propane: about 1.2 gallons/hour (equivalent liquid volume). Actual consumption varies with load.

Does it have an electric start?

Yes, the generator features both electric start with a battery and a recoil pull start as backup. The battery is included and charged by the engine.

How often should I change the oil?

Change oil every 50 hours of operation under normal conditions. For the first change, do it after 20 hours (break-in). Use SAE 10W-30.

What outlets does it have?

It includes 4x 120V 20A household outlets, 1x 120/240V 30A twist-lock, 1x 120V 30A RV outlet, and 1x 120V 30A twist-lock for heavy-duty use.

Can I parallel two units?

No, the XP12000DX is not parallel-ready. It does not have a parallel connection port. For higher output, consider a single larger unit.

What is the weight and dimensions?

The generator weighs approximately 220 lbs (100 kg) and measures 30 x 26 x 26 inches (76 x 66 x 66 cm). It comes with a wheel kit for mobility.

Does it have low oil shutdown?

Yes, the engine is equipped with a low oil sensor that automatically shuts off the generator if oil level drops too low to prevent damage.

USER MANUAL XP12000DX DuroMax

This manual provides information regarding the operation and maintenance of these products. We have made every effort to ensure the accuracy of the information in this manual. We reserve the right to change this product at any time without prior notice.

5800 Ontario Mills Pkwy

Ontario, CA 91764 USA

www.duromaxpower.com

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Pure blue square with no text, numbers, or symbols

Pure blue square with no text, numbers, or symbols

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1. Introduction

Introduction 6

General Safety Procedures 8

Carbon Monoxide Safety 12

Unit and Purchase Information 14

2. Generator Components

Generator Components.... 16

Package Contents 18

3. Generator Setup

Remove Shipping Braces 21

Wheel Kit Installation.... 22

Connect the Battery 24

Adding Oil 25

Adding Gasoline 26

Grounding the Generator 27

High Altitude Operation 27

4. Starting the Generator

Checking the Oil 30

Check the Gas Level 31

Starting the Generator Using Gasoline 32

Starting the Generator Using Propane.... 34

Starting the Generator Using Recoil Start.... 38

5. Using the Generator

AC Usage 42

Connecting the Generator to a Home 45

Connecting a Load to the Generator.... 46

Choosing the Right Power Cord 47

Using the Digital Multimeter 48

Idle Control Usage 49

6.

Maintenance and Care

Maintenance Schedule....52

Break-In Period 53

Maintenance Log 53

Checking the Oil 54

Changing the Oil....55

Cleaning the Air Filter 56

Spark Plug Maintenance ....58

Emptying the Gas Tank 60

Cleaning the Fuel Filter Cup....62

Transporting the Generator 63

Storing the Generator for Same Day Use 64

Storing the Generator for Use Within 30 Days....65

Storing the Generator for Longer than 30 Days 66

Specifications....68

7.

Troubleshooting

Basic Troubleshooting 70

Changing/ Inspecting the Carbon Brushes....71

Changing/ Inspecting the AVR 73

Wiring Diagram 76

8.

Warranty 78

9.

Contact Information 82

For more information and resources on this model scan the QR code below to link to our website product information page.

Duro

NEXT GENERATION

Max

POWER SYSTEMS

POWERING EVERYONE...

ANYWHERE!

THE DUROMAX WAY

The DuroMax Way is more than just a brand, it is our understanding and appreciation of just how important power can be to someone without it...

Family of four sitting on stone steps, smiling and interacting (no text or symbols visible)

DUROMAX FOR HOME

Electricity in our home not only provides comfort but safety as well. From keeping the heat or A/C on to keeping our food cold, power is essential to our daily lives. Inevitability when disaster strikes and we are left without power for a prolonged period of time, our way of life is put at risk. This is by far the most critical time for reliable portable power.

Two construction workers in hard hats and casual clothing working on scaffolding (no visible text or symbols)

DUROMAX FOR WORK

On the job site, portable power allows you the ability to get work done in remote locations when traditional power sources are usually unavailable. Equipment like table saws, sanders, and work lights are a necessity and portable power can play a critical role in getting a job done successfully and efficiently.

Family of four sitting outdoors near a campfire, with a camouflaged vehicle in the background (no visible text or symbols)

DUROMAX FOR PLAY

Camping outdoors in a remote location can get one in touch with nature and allow them to forget the stress of the day to day grind. Here portable power can provide comfort as well as safety. With portable power, you can keep your cell phone charged, light up your campsite, or even brew a cup of coffee, all while being miles from civilization.

The DuroMax Way is a commitment to excellence. This vision is focused on the quality, reliability, and durability of our products combined with outstanding customer service. We understand that having dependable power whenever and wherever you need it provides comfort, safety, and peace of mind. It is through this philosophy that DuroMax achieves our vision of...

POWERING EVERYONE... ANYWHERE!

INTRODUCTION

DuroMax Power Equipment is headquartered in Ontario, California and is the industry's leader in Dual Fuel portable generator technology. In addition to a full assortment of portable generators ranging from digital inverters to large 15,000-watt portable standby units, our product line includes pressure washers, engines, pumps, and accessories.

The foundation of our company is built on quality, reliability, durability, and customer service. At DuroMax our vision is simple, we are committed to Powering Everyone... Anywhere!

STOP

Please do not return to the store.

DuroMax representatives are ready to help you with any questions, concerns, or issues about your new product. We can guide you through assembly, start up, and how to operate your new generator. We want you to be able to put your new generator to use right away!

CALL US BEFORE YOU CONSIDER RETURNING THE PRODUCT!

TOLL-FREE 1-844-DUROMAX

Notice Regarding Emissions

Engines that are certified to comply with U.S. EPA emission regulations for SORE (Small off Road Equipment), are certified to operate on regular unleaded gasoline and may include the following emission control systems: (EM) Engine Modifications and (TWC) Three-Way Catalyst (if so equipped).

GENERAL SAFETY PROCEDURES

SAFETY ALERT SYMBOL

The safety alert symbol is used with one of the safety words (DANGER, WARNING, or CAUTION) to alert you of hazards. Please pay attention to these hazard notices both in this manual and on the engine.

Please familiarize yourself with the following safety symbols and words:

• DANGER: Indicates a hazard that will result in serious injury or death if instructions are not followed.
• WARNING: Indicates a strong possibility of causing serious injury or death if instructions are not followed.
• CAUTION: Indicates a possibility of personal injury or equipment damage if instructions are not followed.

DANGER: This generator produces poisonous carbon monoxide gas when running. This gas is both odorless and colorless. Even if you do not see or smell gas, carbon monoxide may still be present. Breathing this poison can lead to headaches, dizziness, drowsiness, and eventually death.

• Use outdoors ONLY in non-confined areas.
- Keep several feet of clearance on all sides to allow proper ventilation of the generator.

WARNING: The exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

WARNING: This generator produces heat when running. Temperatures near exhaust can exceed 150^ F ( 65^ C).

• Do not touch hot surfaces. Pay attention to warning labels on the generator denoting hot parts of the machine.
• Allow generator to cool several minutes after use before touching engine or areas which heat during use.

WARNING: This generator may emit highly flammable and explosive gasoline vapors, which can cause severe burns or even death. A nearby open flame can lead to an explosion even if not directly in contact with gasoline.

• Do not operate near an open flame.
• Do not smoke near the generator.
  • Always operate on a firm, level surface.
  • Always turn the generator off before refueling.
• Allow generator to cool for at least 2 minutes before removing the fuel cap. Loosen cap slowly to relieve pressure in the tank.
• Do not overfill the gas tank. Gas may expand during operation. Do not fill to the top of the tank.
  • Always check for spilled gas before operating.
  • Empty the gasoline tank before storing or transporting the generator.
• Before transporting, turn the fuel valve to the off position and disconnect the spark plug.

WARNING: This generator produces a powerful voltage, which can result in electrocution.

• ALWAYS ground the generator before using it (see the "Grounding the Generator" portion of the "PREPARING THE GENERATOR FOR USE").
• The generator should only be plugged into electrical devices, either directly or with an extension cord. NEVER connect to a building electrical system without a qualified electrician. Such connections must comply with local electrical laws and codes. Failure to comply can create a backflow of power, which may result in serious injury or death to utility workers.

• Use a ground fault circuit interrupter (GFCI) in highly conductive areas such as metal decking or steelwork. GFCIs are available in-line with some extension cords.

• Do not use uncovered in rainy or wet conditions.

• Do not touch bare wires or receptacles (outlets).
• Do not allow children or non-qualified persons to operate.

GENERAL SAFETY PROCEDURES

In addition to the above safety notices, please familiarize yourself with the safety and hazard markings on the generator.

DANGER

Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide. This is a poison you cannot see or smell.

NEVER use inside a home or garage, EVEN IF doors and windows are open.

Only use OUTSIDE and far away from windows, doors, and vents.

Avoid other generator hazards. READ MANUAL BEFORE USE

Carbon Monoxide

Generators are convenient, but they can also be dangerous. All fuel-burning appliances and equipment release a poisonous gas called carbon monoxide.

Carbon monoxide (also known as CO) can be dangerous for humans and pets, even in small amounts, because it blocks oxygen from getting into your body. Carbon monoxide poisoning can lead to death in a very short time. It is odorless, tasteless and invisible, so you may be exposed without knowing it. That is why carbon monoxide is sometimes called "the silent killer."

CO-ALERT

Description

The DuroMax CO-ALERT system was created to protect our customers and their families from dangerous carbon monoxide. Just like the detector for your home the CO-ALERT tests the air for to keep you safe and healthy.

CO detected

If dangerous carbon monoxide levels are detected:

• The indicator will light red.
• The engine will shutdown.
• The engine will not restart for 5 minutes.

Maintenance required

If an error in the CO-ALERT system is detected the indicator will light yellow. Please contact DuroMax service at 844-DUROMAX for assistance.

ALWAYS READ THE OWNER'S MANUAL FIRST

KNOW THE SYMPTOMS

• HEADACHE • DIZZINESS
• NAUSEA • FATIGUE
• SHORTNESS OF BREATH

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POINT FUMES AWAY FROM NEARBY PEOPLE

KEEP IT OUTSIDE AND AWAY FROM DOORS AND WINDOWS

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As the only safe way to use a portable generator, taking your generator outside is absolutely mandatory to keep your family safe from carbon monoxide. But there's even more you can do. By educating yourself about all carbon monoxide risks, you'll be better prepared to protect your family from this colorless, odorless threat. Visit takeyourgeneratoroutside.com for more information.

TAKE IT OUTSIDE™

CARBON MONOXIDE KILLS

UNIT AND PURCHASE INFORMATION

Serial Number

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Serial number

The serial number is located on the engine block, above and to the left of the oil fill.

Serial number format

The serial number will be shown in two parts. The engine model, followed by the serial number.

Engine Model:

Serial Number: ____

STAPLE RECEIPT HERE

A purchase receipt may be necessary for warranty parts or service in the future. If you have a paper receipt, staple it here for easy reference.

If you purchased the unit online, save the email receipt where you can access it, and record your details here for convenience in the future.

Purchase Date: ____

Order Number: ____

Retailer Name: ____

GENERATOR COMPONENTS

To help you get familiar with your new DuroMax generator, please see this component section for easy reference on all the generator's individual features.

GENERATOR COMPONENTS

1. Recoil Start – Easy pull recoil start to start the engine without the electric start.

2. Air Cleaner - A removable, cleanable, oiled, element that cleans the air going into the engine.

3. Fuel Valve - ON/OFF valve that allows gasoline to the fuel switch.

4. Fuel Tank - All metal 8.3 gallon gasoline fuel tank.

5. Power Panel - Contains the start switch, plugs, meters, and circuit breakers.

6. Handles - Longest handles of any DuroMax model allow easy movement across any surface.

7. Battery - 12V DC battery that powers the electric start system.

8. Oil Fill and Dipstick - Use to add or check the oil.

9. Fuel Switch - Fuel selection switch to choose Gas, Propane, or Storage mode.

10. Propane Inlet - Provides a regulated LPG fuel supply to the engine. (Intended for use with an LPG source of 3 PSI or more.)

11. Engine Switch – Push button start switch. Press for 1 second to start the generator. Hold for 3 seconds to stop the generator.

12. Charging Light - Will light when the generator is charging the on-board battery.

1. 120V 3-Prong GFCI Receptacle

2. Low Oil Alert – Will light only if the generator shuts down due to low oil.

3. Battery Switch – Prevents battery discharge during storage.
4. Idle Control - Slows the engine to save fuel and lower noise when no load.
5. Circuit Breaker - Protects the panel from overload and short circuits.
6. Multimeter - Displays voltage, hertz, and time running.
7. CO-ALERT - Shuts down the engine in the event of CO buildup.
8. 50A Receptacle - Use to connect electrical devices that run 120 or 240 Volt, 60 Hz, single-phase, AC current (NEMA 14-50).
9. 240V 4-Prong Twist Lock - Use to connect electrical devices that run 120 or 240 Volt, 60 Hz, single-phase, AC current (NEMA L14-30).
10. 120V 3-Prong GFCI Receptacle - Use to connect electrical devices that run 120 Volt, 60 Hz, single-phase, AC current (NEMA 5-20).
11. 120V 3-Prong Twist Lock - Use to connect electrical devices that run 120 Volt, 60 Hz, single-phase, AC current (L5-30).

■ PACKAGE CONTENTS

Your generator comes with the items listed below. Please check to see that all of the following items are included with your generator.

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Double-Sided Screw Driver

Phillips and slot blade screwdriver used for generator maintenance.

Simple curved line drawing resembling a tool or tool (no text or symbols)

Oil Funnel w/ Hose

Used to add oil to the generator without messy spills.

Two metallic wrenches with standard metalwork, no text or symbols visible

Spanner Spark Plug Wrench

Assorted wrenches used in generator maintenance and assembly. 10mm/12mm, 13mm/15mm, and 17mm/19mm.

Coiled black electrical plug with green connectors and a small circular component (no visible text or symbols)

Propane Regulator w/ Hose

Used to provide a regulated propane supply to the propane inlet.

Two metallic cylindrical metal rods with circular holes, no text or symbols visible

Used in spark plug maintenance, inspection, and installation.

Four different types of electrical plugs shown from different angles (black, black, and striped) with yellow metal pins, no text or symbols visible.

Plug Ends

Plug heads for the receptacles found on the generator are included to make or rewire your own cords.

Note: Actual tools may differ in appearance or design from the image shown.

GENERATOR SETUP

Proper setup of your generator will get you going as soon as possible while making sure you and your equipment are safe and cared for.

Duro

NEXT GENERATION

Max

POWER SYSTEMS

POWERING EVERYONE...

ANYWHERE!

Step 1 - Remove Shipping Braces

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1. Unpack

a. Remove the generator from the box.
b. Place the largest piece of packing foam on a flat surface.
c. Flip the generator upside down on the pad.

CAUTION: NEVER attempt this if you have put fuel or oil in the generator.

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2. Remove braces

a. The shipping braces prevent engine movement during shipment. Flip the generator over and remove the brightly colored braces between the motor and the frame, and the wood brace under the generator.

Collection of red metal bracket components including bolts, nuts, and bolts (no text or symbols visible)

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Note: Shipping braces can be thrown away, they will not be needed again.

■ GENERATOR SETUP (CONTINUED)

Step 2 - Wheel Kit Installation (Optional)

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1. Install support legs

a. Secure the support legs to the frame with the provided lock nuts.

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2. Install wheel axles

a. Place the smallest washer onto the wheel axle bolts. b. Insert wheel axle bolts through the frame and secure with the provided nut and wrenches

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3. Install inside wheel washers

a. Place one of the large washers onto the axles.

Hand holding a black tire with a metallic rim, next to a blue vehicle battery (no visible text or symbols)

4. Install wheels

a. Place the wheels onto the axles.

Close-up of a hand holding a small metal washer next to a black and silver tire (no text or symbols visible)

5. Install outside wheel washers

a. Place the other large washers onto the axles.

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6. Install cotter pins

a. Place the cotter pin through the hole at the end of the axle and bend it out to secure the wheel.

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7. Install handles

a. Attach the handles to the brackets on the frame using the provided bolts and nuts.

Do not overtighten the handles, it will prevent free movement.

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8. Flip over assembled

a. Flip the assembled generator over onto its wheels and support brackets.

■ GENERATOR SETUP (CONTINUED)

Step 3 - Connect the Battery

1. Remove the battery cover

a. Remove the battery cover plate using the wrench from the toolkit.

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2. Locate the negative cable

a. Locate the negative battery cable above and behind the battery. One side is connected to ground and the other end needs to be connected to the battery. b. Route the free end to the negative battery terminal.

Close-up of hands using a screwdriver to adjust or install a mechanical component (no visible text or symbols)

3. Connect the negative cable

a. Push the black rubber boot up the wire to expose the connector. b. Securely connect the free end of the battery cable to the negative battery terminal using the screw and nut from the battery with the screwdriver and wrench from the toolkit.

Close-up of a black battery casing with red connectors, no visible text or symbols

4. Reinstall the battery plate

a. Cover the connected terminal with the black rubber boot. b. Reinstall the battery cover plate using the wrench from the toolkit.

Step 4 - Adding Oil

The generator requires engine oil to operate properly. The generator, when new from the package, contains no oil in the crankcase*. You must add the proper amount of oil before operating the generator for the first time. This amount is equal to the oil capacity of the engine crankcase:

Model Number XP12000DX

Engine Oil Capacity 40.5 fl. oz (1.2 L)

WARNING: Do not apply engine oils with additives or 2-stroke gasoline engine oils; they don't have enough lubrication and may shorten the engine's service life.

Engine oil recommended: SAE 10W-30.

Viscosity varies with regions and temperatures. Choose your oil viscosity using the chart to the left.

* A small amount of oil from factory testing may be present on arrival.
* Synthetic oil may be used after the 8 hour initial break-in period. Using synthetic oil does not increase the recommended oil change interval. Full synthetic 5W-30 oil will aid in starting in cold temperatures < 5^ (41°F).

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Add oil

a. Make sure the generator is on a level surface.
b. Unscrew the oil filler/dipstick cap from the engine.
c. Using a funnel, add the appropriate amount of oil into the crankcase. You will know the crankcase is full when the oil level has reached the lower lip of the opening you have just poured the oil into.
d. Replace the oil filler cap.

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WARNING: DO NOT overfill the crankcase. This may damage the motor and shorten the overall life of your generator.

GENERATOR SETUP (CONTINUED)

Step 5 - Adding Gasoline (Optional)

Person pouring liquid into a red gas cylinder on a black tray (no text or symbols visible)

Add gasoline

a. Make sure the generator is on a level surface.
b. Unscrew gas cap and set aside (NOTE: the gas cap may be tight and hard to unscrew).
c. Slowly add unleaded gasoline to the fuel tank. Be careful not to overfill. The fuel gauge on the top of the gas tank indicates how much gasoline is in the generator gas tank.
d. Replace fuel cap and wipe up any spilled gasoline with a dry cloth.

Model Number XP12000DX
Gas Tank Capacity 8.3	US gal. (31 L)

WARNING: Gas can expand. Do not fill the gas tank to the very top. Leave a minimum of 1.5 in open space. Gasoline and gas fumes are highly flammable. Do not fill the tank near an open flame. Always check for fuel spills.

IMPORTANT:

• To ensure that the generator runs smoothly use only FRESH, UNLEADED GAS WITH AN OCTANE RATING OF 87 OR HIGHER.
• Never use an oil/gasoline mixture. Never use old gas.
• Avoid getting dirt or water in the fuel tank.
  Gas can age in the tank and make it hard to start up the generator in the future.
  • Never store generator for extended periods of time with fuel in the tank.

Step 6 - Grounding the Generator

Attach grounding wire

a. Ground the generator by tightening the grounding nut against a grounding wire.

b. Connect the other end to a copper or brass grounding rod that's driven into the earth.

A generally acceptable grounding wire is a No. 12 AWG (American Wire Gauge) stranded copper wire.

Close-up of a black electronic device front panel with two switches and a 30A indicator (no readable text or symbols beyond basic labels)

Grounding codes can vary by location. Please contact a local electrician to check the grounding regulations for your area.

Note: If the generator is connected to a home, then it won't be necessary to attach the separate grounding wire and you can opt to use your home ground instead. Please see a certified electrician for further options with grounding your generator.

WARNING: Failure to properly ground the generator can result in electrocution.

High Altitude Operation

At high altitudes, the standard carburetor air/fuel mixture will be too rich. The performance will decrease, and fuel consumption will increase. A very rich mixture will also foul the spark plug and cause hard starting. Operation at an altitude that differs from that at which this engine was certified, for extended periods of time, may increase emissions. High altitude performance can be improved by specific modifications to the carburetor. If you always operate your generator at altitudes above 3,000 feet (900 meters), have a dealer perform this carburetor modification. This engine, when operated at high altitude with the carburetor modifications for high altitude use, will meet each emission standard throughout its useful life. Even with carburetor modification, engine horsepower will decrease by about 3.5% for each 1,000-foot (300-meter) increase in altitude. The effect of altitude on horsepower will be greater than this if no carburetor modification is made.

When the carburetor has been modified for high altitude operation, the air/fuel mixture will be too lean for low altitude use. Operation at altitudes below 3,000 feet (900 meters) with a modified carburetor may cause the engine to overheat and result in serious engine damage.

Duro

NEXT GENERATION

Max

POWER SYSTEMS

POWERING EVERYONE...

ANYWHERE!

STARTING THE GENERATOR

If this is not your first time using the generator there are still steps you should take to prepare it for operation each time you use it.

IMPORTANT: At this point, you should be familiar with the procedures described in the first portion of this section entitled "GENERATOR SETUP" If you have not yet read this section, go back and read it now.

BEFORE YOU START YOUR GENERATOR

Step 1 - Check the Oil

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Close-up of a metallic pipe fitting with a dark liquid inside, no visible text or symbols

Check the oil

The generator is equipped with an automatic shutoff to protect it from damage due to low oil. Nonetheless, you should check the oil level of the engine before each use to ensure that the engine crankcase has a sufficient amount.

To check the oil level:

a. Make sure the generator is on a level surface.
b. Unscrew the oil filler/dipstick cap.
c. With a dry cloth, wipe the oil off of the stick on the inside of the cap.
d. Insert the dipstick as if you were replacing the cap and then remove it again. There should now be oil on the stick. If there is no oil on the stick, or oil only at the very end of the stick, you should add oil until the engine crankcase is filled (see "Adding Oil" portion of the "Maintenance" section).
e. Be sure to replace the cap when finished checking oil.

Model Number XP12000DX

Engine Oil Capacity 40.5 fl. oz (1.2 L)

Step 2 - Check the Gas Level (Optional)

Person in blue shirt and red container handling a yellow object, no visible text or symbols

Check fuel level

If running the engine on gasoline, check to see that there is sufficient gasoline in the fuel tank. The fuel gauge on top of the tank will give a rough estimate of the gasoline level. The gauge will appear white then fill red as the tank is filled.

Note: Fuel gauge may not register with less than 1/3 fuel tank full.

WARNING: Gasoline and gasoline fumes are highly flammable.

• Do not fill the tank near an open flame.
  • Always allow the engine to cool for several minutes before refueling.
• DO NOT overfill the fuel tank. Fuel expands when shaken or heated. ALWAYS leave 1^1/2 space or more at the top of the tank.
• ALWAYS use fresh fuel or stabilized fuel. Old gasoline (older than 30 days) can cause permanent damage to the fuel system.
  • Always check for fuel spills.

Starting the Generator Using Gasoline

1. Turn breaker OFF

The breaker is located on the right side of the front power panel. Flip the breaker down to prevent accidental load when starting the generator.

2. Turn fuel switch to GAS

The fuel switch is located on the left front panel. Rotate the switch clockwise to the "GAS" position to turn on the gas supply.

3. Turn battery switch ON

The battery switch is located on the top center of the main power panel. Turn the switch "ON" to allow power to the push-button start.

4. Turn idle control OFF

The idle control is located on the top center of the main power panel. Turn the switch "OFF" to prevent the unit from trying to idle down before the engine is warmed up.

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5. Close choke

The choke lever is located above the air filter to the left of the recoil start. Slide the lever to the left to cut the air supply and allow more gas into the engine to start.

6. Start the generator

The engine switch is located on the left side of the front power panel. Flip the switch up to the "START" Position. When the engine starts, allow the engine switch to return to the "RUN" position.

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7. Open choke

Push the choke to the "OPEN" position as the engine warms up.

Control panel with buttons, switches, and wiring (no readable text or symbols)

8. Turn breaker ON/Connect

The breaker is located on the right side of the front power panel. Flip the breaker up to allow the power to flow to the receptacles. Connect your devices to the receptacles on the front panel. Start with the largest loads first.

■ STARTING THE GENERATOR (CONTINUED)

Starting the Generator Using Propane

1. Turn breaker OFF

The breaker is located on the right side of the front power panel. Flip the breaker down to prevent accidental load when starting the generator.

2. Turn fuel switch to PROPANE

The fuel switch is located on the left front panel. Rotate the switch counter-clockwise to the "PROPANE" position to turn on the fuel supply.

3. Connect propane hose

The propane inlet is located on the left-hand front panel to the right of the fuel switch. Securely connect the propane hose to the inlet.

Close-up of hands cleaning a metal mechanical component with a green handle (no visible text or symbols)

4. Connect propane tank

Screw the open ACME nut connection to your propane tank and turn the tank on.

5. Turn battery switch ON

The battery switch is located on the top center of the main power panel. Turn the switch "ON" to allow power to the push-button start.

6. Turn idle control OFF

The idle control is located on the top center of the main power panel. Turn the switch "OFF" to prevent the unit from trying to idle down before the engine is warmed up.

Close-up of a mechanical assembly with metallic components and a blue component (no visible text or symbols)

7. Shut fuel valve OFF

Turn the fuel valve to the "OFF" position.

Close-up of a black compact device with a white arrow pointing left, no visible text or symbols

8. Close choke

The choke lever is located above the air filter to the left of the recoil start. Slide the lever to the left to cut the air supply and allow more gas into the engine to start.

■ STARTING THE GENERATOR (CONTINUED)

Starting the Generator Using Propane (Continued)

9. Start the generator

The engine switch is located on the left side of the front power panel. Flip the switch up to the "START" Position. When the engine starts, allow the engine switch to return to the "RUN" position.

Close-up of a black plastic case with an arrow pointing to the side panel (no visible text or symbols)

10. Open choke

Push the choke to the OPEN position as the engine warms up.

Close-up of an industrial control panel with buttons, switches, and a yellow cable inserted (no visible text or symbols)

11. Turn breaker ON/ Connect

The breaker is located on the right side of the front power panel. Flip the breaker up to allow the power to flow to the receptacles. Connect your devices to the receptacles on the front panel. Start with the largest loads first.

CAUTION: Disconnect all electrical loads from the generator before attempting to start!

WARNING: Operating the starter motor for more than 5 seconds can damage the motor. If the engine fails to start, wait 10 seconds before operating the starter again.

WARNING: WHEN USING THE GENERATOR WITH LPG, MAKE SURE THERE IS NO POSSIBLE IGNITION SOURCE CLOSE TO THE GENERATOR.

1. Before using, make sure all of the LPG connectors and hoses are well connected and sealed.
2. Connect electrical devices to the generator ONLY after the engine runs smoothly. (There may be remnant gasoline in the carburetor; this can cause unsteady engine performance for several minutes)
3. If the propane gas leaks, shut off the LPG supply first and then quickly unplug or turn off any electrical devices powered by the unit.
4. When stopping the engine, unplug or turn off any electrical devices, turn off the main circuit breaker and then turn off the LPG supply. After the engine has stopped turn the switch to the "OFF" position.

■ STARTING THE GENERATOR (CONTINUED)

Starting the Generator Using Recoil Start

1. Shut breaker OFF

The breaker is located on the right side of the front power panel. Flip the breaker down to prevent accidental load when starting the generator.

2. Select your fuel

If using gasoline, see step 2 on pg. 32. If using propane see steps 2 - 4 on pg. 34.

3. Turn battery switch ON

The battery switch is located on the top center of the main power panel. Turn the switch "ON" to allow power to the push-button start.

4. Turn idle control OFF

The idle control is located on the top center of the main power panel. Turn the switch "OFF" to prevent the unit from trying to idle down before the engine is warmed up.

Close-up of a black plastic case with an arrow pointing to a component, no visible text or symbols

5. Close choke

The choke lever is located above the air filter to the left of the recoil start. Slide the lever to the left to cut the air supply and allow more gas into the engine to start.

Close-up of a blue Ouro Max electric scooter with a hand adjusting its seat (no visible text or symbols on the device itself)

6. Pull the recoil start

The recoil start is located on the left side panel next to the air filter. Pull the recoil handle slowly until resistance is felt, then quickly pull the recoil handle until fully extended.

CAUTION: Release the recoil handle only after the cord has retracted. Releasing the recoil handle while extended may cause harm to yourself or your equipment.

Close-up of a black plastic case with an arrow pointing to the side panel, no visible text or symbols

7. Open choke

Push the choke to the OPEN position as the engine warms up.

Close-up of an electrical control panel with buttons, switches, and a yellow cable (no visible text or symbols)

8. Turn breaker ON/Connect

The breaker is located on the right side of the front power panel. Flip the breaker up to allow the power to flow to the receptacles. Connect your devices to the receptacles on the front panel. Start with the largest loads first.

Duro

NEXT GENERATION

Max

POWER SYSTEMS

POWERING EVERYONE...

ANYWHERE!

USING THE GENERATOR

If this is not your first time using the generator, there are still steps you should take to prepare it for operation each time you use it.

IMPORTANT: At this point, you should be familiar with the procedures described in the first portion of this section entitled "GENERATOR SETUP"; if you have not yet read this section, go back and read it now.

AC Usage

• You may connect electrical devices running on AC current according to their wattage requirements.
• The chart below shows the rated and surge wattage of your generator according to its model number.
• The rated wattage corresponds to the maximum wattage the generator can output on a continuous basis.
• The surge wattage corresponds to the maximum amount of power the generator can output for a short period of time. In addition to the rated wattage listed by the device, many electrical devices such as refrigerators require short bursts of extra power to stop and start their motors. The surge wattage ability of the generator covers this extra power requirement.

Fuel Source Rated (Running) Wattage Surge (Peak) Wattage
Gasoline 9500 12000
Propane 9025 11400

The total running wattage requirement of the electrical devices connected to the generator should not exceed the rated wattage of the generator itself. To calculate the total wattage requirement of the electrical devices you wish to connect, find the rated (or running) wattage of each device. This number should be listed somewhere on the device or in its instruction manual.

If you cannot find this wattage, you may calculate it by multiplying the voltage requirement by the amperage drawn: watts = volts x amps. If these specifications are not available, you may estimate the watts required by your device by using the chart on the next page.

Once you have found the rated wattage requirement of each electrical device, add these numbers to find the total rated wattage you wish to draw from the generator. If this number exceeds the rated wattage of the generator, DO NOT connect all these devices. Select a combination of electrical devices, which has a total rated wattage lower than or equal to the rated wattage of the generator.

Tool or Appliance Rated	(Running) Watts Additional Surge Watts
Electric water heater (40 gal) 40	0
Hot plate 2500 0
Radial arm saw 2000 2000
Electric stove 1500 0
Circular saw 1500 1500
Air compressor (1 HP) 1500 3000
Window air conditioner 1200 1800
Miter saw 1200 1800
Microwave 1000 2000
Well water pump 1000 1500
Reciprocating saw 960 1040
Sump pump 800 1200
Refrigerator freezer	800 1200
Furnace blower	800 1300
Computer	800 0
Electric drill	600 900
Television	500 0
Deep freezer	500 800
Garage door opener	480 600
Stereo	400 0
Box fan	300 600
Clock radio	300 0
Security system	180 0
DVD player	100 0
Common light bulb	75

CAUTION: The generator can only run at its surge wattage capacity for a very short time. Connect only electrical devices requiring a rated (running) wattage equal to or less than the rated wattage of the generator. Never connect devices requiring a rated wattage equal to the surge wattage of the generator.

NOTE: The above wattage figures are estimates only.

Try to check the wattage listed on your electrical devices before consulting this chart.

Connecting the Generator to a Home

Extension cords

• The most straightforward and affordable option.
- Zero commitment, no installation needed: Simply plug in your appliances and go!
- Perfect for renters, RV/camping trips, and power on the job-site.

Person operating a power supply unit next to an open electrical cabinet (no visible text or symbols)

Transfer switch

• The safest, most effortless way to power your home.
• Automatically switches power over to your generator during an outage. Requires an electrician to install.
• Once you choose which circuits you want to power, you're locked into your configuration.

Interlock kit

• Choose what circuits you want to run.
• Requires an electrician to install, but you have the flexibility of switching up your circuits depending on your power needs.
• More hands-on, and some electrical knowledge is needed so you don't overload the generator.

■ USING THE GENERATOR (CONTINUED)

Connecting a Load to the Generator

NOTE: Be sure to attach devices to the correct receptacle (outlet).

• 120V devices can be directly connected to the 120V ONLY receptacles.
• 120V devices can be connected to the 120/240V receptacle using an appropriate adapter.
• 240V devices can ONLY be connected to the 240V receptacle.

CAUTION: Do not connect 50 Hz or 3-phase loads to the generator.

Close-up of an industrial control panel with buttons, switches, and a yellow cable (no readable text or symbols)

1. Plug in devices

Plug in devices to the appropriate receptacle. When using the generator balance the load as closely as possible. Placing more load on one side of the circuit will reduce the breaker trip period.

2. Turn breaker ON

Flip the circuit breaker up to the ON position to allow power to the receptacles.

Exterior night view of a two-story residential house with illuminated windows and steps (no signage or text visible)

3. Turn on connected devices

Start or turn on appliances starting with the biggest loads first.

Choosing the Right Power Cord

Long or thin cords can drain the power provided to an electrical device by the generator. When using such cords, allow for a slightly higher rated wattage requirement for the electrical device. See the table below for recommended cords based on the power requirement of the electrical device.

DEVICE REQUIREMENTS WIRE GA		UGE BY LENGTH (ft.)
AMPS	WATTS (120/240V) 10 25 50 100 150
5 600	/1200 18 16 14 12 10
10 120	00/2400 16 14 12 12 10
15 180	00/3600 14 14 12 12 10
20 240	00/4800 12 12 12 10 10
25 300	00/6000 12 10 10 10 8
30 360	00/7200 10 10 10 8 NR
40 480	00/9600 8 8 6 6 NR
50 600	00/12000 6 6 6 NR NR
*NR = NOT RECOMMENDED *Gauge based on twisted copper wire

From home back up to just running your electric edger and everything in-between DuroMax has the power cord for you. All DuroMax cords are 100% twisted copper wire for maximum life and reliability.

Length	120V 15A					240V 30A	240V 50A
	14 Gauge	12 Gauge 10 Gauge		6 Gauge
	Single Outlet	Single Outlet	Triple Outlet	Single Outlet	Triple Outlet	L14-30P/L14-30R	14-50P/CS6364
10 ft						XP3010GC
15 ft							XP5015GC
25 ft	XPC14025A	XPC12025A	XPC12025C	XPC10025A	XPC10025C	XP3025GC	XP5025GC
50 ft			XPC12050C	XPC10050A	XPC10050C	XP3050GC	XP5050GC
100 ft		XPC12100A	XPC12100C	XPC10100A	XPC10100C

■ USING THE GENERATOR (CONTINUED)

Using the Digital Multimeter

When the generator is started, the display will read the current voltage. Press the MODE button to cycle through the multimeter functions.

1. Voltage

The voltage currently produced by the generator in volts.

2. Frequency

The frequency currently produced by the generator in Hz.

3. Hours run

The number of hours the engine has currently been running.

4. Hours total

The number of hours the generator has been run in total.

Idle Control Usage

Idle control

The idle control feature lowers the RPM of the generator when there is no load to save gas and decrease engine noise.

When a load is applied, the engine will resume normal speed to provide usable power.

Turn on the idle control when using intermittent loads like power tools and air compressors.

The idle control feature is designed for gasoline only use.

WARNING: Power is unusable when idle control is engaged.

- DO NOT use the idle control function when using the generator for backup house power.

- Idle control function will cause massive fluctuations in voltage and hertz.

- Low amperage loads may not trigger the idle up function.

Duro

NEXT GENERATION

Max

POWER SYSTEMS

POWERING EVERYONE...

ANYWHERE!

MAINTENANCE AND CARE

Proper maintenance and storage of your generator are essential to ensure trouble-free use of your generator when you need it.

By following the maintenance and care requirements, you can keep your generator running smoothly and efficiently for years to come.

MAINTENANCE AND CARE

Proper routine maintenance of your generator is essential for safe, economical, and trouble-free operation. It will also help reduce air pollution.

WARNING: Improper maintenance, or failure to correct a problem before operation, can cause a malfunction in which you can be seriously injured or killed. Always follow the inspection, maintenance recommendations, and schedules in this instruction manual.

• Make sure the engine is off before you begin any maintenance or repairs.
- Let the engine and exhaust system cool before touching.
- To reduce the possibility of fire or explosion, be careful when working around gasoline. Use only a nonflammable solvent, not gasoline, to clean parts. Keep cigarettes, sparks, and flames away from all fuel-related parts.

Maintenance Schedule

Remember that this schedule is based on the assumption that your machine will be used for its designed purpose. Sustained high-load, high-temperature operation, or use in unusually wet or dusty conditions, will require more frequent service.

SERVICE	EVERY USE	1ST MO. OR 8 HRS. (BREAK IN)	EVERY 3 MO. OR 50 HRS. OF HEAVY USE	EVERY 6 MO. OR 100 HRS. OF NORMAL USE	EVERY 12 MO. OR 300 HRS.	EVERY 3 YRS. OR 500 HRS.
ENGINE OIL CHECK CHANGE CHANGE
AIR CLEANER CHECK CHECK CHANGE CHANGE
SEDIMENT CUP			CLEAN CLEAN
SPARK PLUG CLEAN /			ADJUST	CLEAN / ADJUST
SPARK ARRESTOR	CHECK CLEAN
IDLE SPEED CHECK /					ADJUST
VALVE CLEARANCE					CHECK / ADJUST
FUEL TUBE CHECK CHECK /					REPLACE
FUEL TANK / FILTER					CLEAN
COMBUSTION CHAMBER						CLEAN

Break-In Period

As the best practice for any new combustion motor it's recommended to perform the break in procedure as follows:

• Run the generator for the first 6-8 hours on conventional oil, then change the oil. After the break-in period synthetic oil may be used.
• During the break in period of the first 6-8 hours keep the generator load under 50% for optimal results.
• Check and clean the air □iter if necessary after the break-in period.

Maintenance Log

As a best practice it's recommended to keep a log of the generator hours and maintenance to ensure your generator is always operating to its full potential.

Date Generator Hours Maintenance Performed

■ MAINTENANCE AND CARE (CONTINUED)

Checking the Oil

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Close-up of a metallic pipe fitting with a circular opening and internal channel (no visible text or symbols)

Check the oil

The generator is equipped with an automatic shutoff to protect it from damage due to low oil; nonetheless, you should check the oil level of the engine before each use to ensure that the engine crankcase has a sufficient amount.

To check the oil level:

a. Make sure the generator is on a level surface.
b. Unscrew the oil filler/dipstick cap.
c. With a dry cloth, wipe the oil off of the stick on the inside of the cap.
d. Insert the dipstick as if you were replacing the cap and then remove it again. There should now be oil on the stick. If there is no oil on the stick, or oil only at the very end of the stick, you should add oil until the engine crankcase is filled (see "Adding Oil" portion of the "Maintenance" section).
e. The oil will be visible in the oil fill spout when full.
f. Be sure to replace the cap when finished checking oil.

Model Number XP12000DX

Engine Oil Capacity 40.5 fl. oz (1.2 L)

Changing the Oil

Gray plastic container with red lid and handle, no visible text or symbols

CAUTION: Worn out or dirty oil does not cool the generator properly and can lead to catastrophic engine damage.

In addition to regular oil changes, it is necessary to drain the oil from the crankcase if it has become contaminated with water or dirt.

Close-up of a hand holding a wrench tool against a metal panel (no visible text or symbols)

1. Remove drain plug

Using a 12 mm hex wrench, unscrew the oil drain plug, which is located on the crankcase underneath the oil filler/dipstick cap.

Allow all the oil to drain from the generator.

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2. Drain oil

Drain oil into an approved oil disposal container. Contact your local auto parts store for information on oil disposal.

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3. Replace drain plug

Replace the oil drain plug and tighten with a 12 mm hex wrench.

■ MAINTENANCE AND CARE (CONTINUED)

Cleaning the Air Filter

Routine maintenance of the air cleaner helps maintain proper airflow to the carburetor. Check that the air cleaner is free of excessive dirt after every use.

CAUTION: Improper maintenance may cause less air to enter the engine or dirty air to enter the engine causing overheating and engine wear.

Close-up of a black automotive electronic device with two side panels, one being handled by a hand (no visible text or symbols)

1. Remove the filter cover

Release the clips on the top and bottom of the cover and remove the filter cover.

Close-up of a hand holding a black square patch over a blue Max air conditioner fan (no visible text or symbols)

2. Remove filter

Remove the sponge-like elements from the casing.

Close-up of a hand cleaning a blue Juro vehicle engine compartment with a cloth (no visible text or symbols)

3. Clean out filter casing

Wipe the dirt from inside the empty air cleaner casing.

Close-up of a hand pouring liquid from a bottle into a clear container, with another black plastic bottle in the background (no visible text or symbols)

4. Wash cleaner element

Wash the sponge-like elements in household dish detergent and warm water.

Hand holding a black rectangular object on a white surface, with another container and orange bottle in the background (no visible text or symbols)

5. Dry cleaner element

Pat dry on a dry cloth and allow the elements to dry completely.

Close-up of a bottle pouring liquid into a dark container on a white surface (no text or symbols visible)

6. Add engine oil to elements

Soak the dry elements in a small amount of engine oil. Ring out any excess oil.

Close-up of a blue Duro electric vehicle front panel with visible tire and vent, no text or symbols on the main body.

7. Replace elements in casing

Replace the sponge-like elements in the air cleaner casing and replace the cover.

■ MAINTENANCE AND CARE (CONTINUED)

Spark Plug Maintenance

The spark plug is important for proper engine operation. A good spark plug should be intact, free of deposits, and properly gapped.

CAUTION: Improper maintenance may cause reduced fuel economy, misfires, trouble starting, or damage to the spark plug threads.

Close-up of a hand using a tool to adjust or install a car body panel (no visible text or symbols)

1. Remove spark plug cap

Pull on the spark plug cap to remove it.

Close-up of a metallic automotive component labeled 'OHV' with a handle and lever (no readable text beyond label)

2. Remove spark plug

Unscrew the spark plug from the generator using the spark plug wrench included with this product.

Close-up of a standard sparkler with metallic threaded body and white plastic cap (no visible text or symbols)

3. Inspect spark plug

Visually inspect the spark plug. If it is cracked or chipped, discard and replace it with a new spark plug. We recommend using an F6RTC spark plug such as NGK BPR6ES.

Close-up of hands holding a metallic analog dial with measurement markings (no readable text or symbols)

4. Measure plug gap

Measure the plug gap with a gauge. The gap should be 0.7-0.8 mm (0.028-0.031 in).

Close-up of a hand using a red tool to cut a textured, coiled metal component (no text or symbols visible)

5. Clean and re-gap

If you are re-using the spark plug, use a wire brush to clean any dirt from around the spark plug base and then re-gap the spark plug.

Close-up of a car engine bay with visible 'OHV' branding and mechanical components (no readable text beyond label)

6. Install spark plug

Screw the spark plug back into its place on the generator using the spark plug wrench.

Close-up of a hand using a tool to adjust or install electronic components (no visible text or symbols)

7. Replace spark plug cap

Replace the spark plug cap.

■ MAINTENANCE AND CARE (CONTINUED)

Emptying the Gas Tank

Person pouring liquid into a red fuel can into a black tray (no visible text or symbols)

If you have been using gasoline in your generator, before storing your generator for extended periods of time you should drain your generator fuel tank of gasoline.

CAUTION: Do not store fuel from one season to another. Gasoline sold at the pump today contains additives such as ethanol that even when stored properly may damage the fuel system components.

Close-up of a mechanical assembly with a metallic component and a blue tool, no visible text or symbols

1. Shut fuel valve OFF

Turn the fuel valve to the "OFF" position.

Close-up of a hand adjusting a mechanical component with tools and cables (no visible text or symbols)

2. Remove fuel filter cup

Remove the fuel filter cup (see "Removing the Fuel Filter Cup" later in this section).

Close-up of hands adjusting a mechanical component with blue engine and black wiring (no visible text or symbols)

3. Empty fuel filter cup

Empty the fuel filter cup of any fuel.

Close-up of a hand pouring liquid into a blue car engine compartment with a red filter cover (no visible text or symbols)

4. Drain gas from the generator

With a funnel underneath the fuel valve to catch the gas, turn the fuel valve to the "ON" position. Drain all the gas from the generator.

Close-up of a mechanical valve assembly with metallic housing and blue components (no visible text or symbols)

5. Shut fuel valve OFF

Turn the fuel valve to the "OFF" position.

Close-up of a hand adjusting a mechanical component with blue and black parts (no visible text or symbols)

6. Replace fuel filter cup

Reinstall the fuel filter cup.

Red fire extinguisher with yellow handle and label (no visible text or symbols on body)

7. Store emptied gas

Store the emptied gasoline in a suitable place and add fuel stabilizer to keep fuel fresh and usable.

■ MAINTENANCE AND CARE (CONTINUED)

Cleaning the Fuel Filter Cup

Close-up of a mechanical assembly with a metallic component and pipe fitting (no visible text or symbols)

1. Shut fuel valve OFF

Turn the fuel valve to the "OFF" position.

Close-up of hands adjusting a mechanical component with blue car body and black cables (no visible text or symbols)

2. Remove fuel filter cup

Unscrew the fuel filter cup from the fuel valve using a wrench.

Close-up of a hand holding a small white plastic component with a black ring, next to a blue car engine compartment (no visible text or symbols)

3. Clean filter cup

Clean the cup of all sediment using a rag or brush.

Close-up of a hand adjusting a mechanical component with blue and black parts (no visible text or symbols)

4. Replace fuel filter cup

Reinstall the fuel filter cup.

Transporting the Generator

Close-up of a hand pouring liquid into a blue car engine compartment with a red filter hood (no visible text or symbols)

1. Empty the gas tank

Fully drain your gas tank as shown in "Emptying the Gas Tank" on page 60-61.

Close-up of a hand using a tool to adjust or install a mechanical component, no visible text or symbols

2. Disconnect the spark plug

Pull on spark plug cap to disconnect spark plug from ignition wire.

CAUTION: Do not obstruct any ventilation openings and keep the generator in a cool dry area.

CAUTION: Never place any type of storage cover on the generator while it is still hot.

■ MAINTENANCE AND CARE (CONTINUED)

Storing the Generator for Same Day Use

1. Turn the main breaker OFF

Move the main breaker to the "OFF" position.

Exterior view of a portable gas cylinder with blue internal components and wheels (no visible text or symbols)

2. Run the generator

Allow the generator to run for 3-5 minutes.

3. Move rocker switch to STOP

Move the rocker switch to the "STOP" position to turn the generator off.

4. Turn battery switch OFF/Store

Turn the battery switch to the "OFF" position, and store the generator.

CAUTION: Do not obstruct any ventilation openings and keep the generator in a cool dry area.

Storing the Generator for Use Within 30 Days

1. Turn breaker OFF and run

Follow steps 1 and 2 as shown on "Storing the Generator For Same Day Use" on page 64.

Close-up of a mechanical assembly with metallic components and a blue tool (no visible text or symbols)

2. Shut fuel valve OFF and run dry

Shut the fuel valve "OFF" and allow generator to run until it stalls out.

3. Turn the battery switch OFF

Turn the battery switch to the "OFF" position.

4. Add fuel stabilizer and store

Add fuel stabilizer to gas remaining in tank, and store generator.

■ MAINTENANCE AND CARE (CONTINUED)

Storing the Generator for Longer Than 30 Days

1. Turn breaker OFF and run

Follow steps 1 and 2 as shown on "Storing the Generator For Same Day Use" on page 64.

Close-up of a mechanical component with metallic and steel parts, no visible text or symbols

2. Shut fuel valve OFF and run dry

Shut the fuel valve "OFF" and allow generator to run until it stalls out.

3. Turn the battery switch OFF

Turn the battery switch to the "OFF" position.

Close-up of a hand pouring liquid into a car engine compartment with blue and red components (no visible text or symbols)

4. Empty the gas tank

Fully drain your gas tank as shown in "Emptying the Gas Tank" on page 60-61.

Close-up of a hand using a wrench to adjust or install a mechanical component (no visible text or symbols)

5. Drain the carburetor

Remove drain bolt from carburetor and drain small amount of fuel in carburetor bowl.

Close-up of a hand using a wrench to adjust mechanical parts (no visible text or symbols)

6. Remove spark plug

Remove spark plug as shown in "Spark Plug Maintenance" on page 58.

Close-up of a hand pouring orange liquid into a car engine compartment with 'OHV' branding (no readable text beyond label)

7. Add oil to cylinder

Add 2 tablespoons of 10W-30 motor oil directly into the spark plug hole, and pull the recoil to lubricate cylinder. After lubricating cylinder reinstall the spark plug.

Close-up of hands using a screwdriver to adjust or install a black plastic component (no visible text or symbols)

8. Remove battery and charge

Remove the generator battery and place it on a 12V battery tender indoors.

SPECIFICATIONS

Model Number XP12000DX
AC Rated Wattage (Gasoline) 9,500 W
AC Rated Wattage (Propane) 9,025 W
AC Surge Wattage (Gasoline) 12,000 W
AC Surge Wattage (Propane) 11,400 W
AC Rated Voltage 120/240V
Dimensions 29"L x 30"W x 26"H
Weight 230 lbs
Recommended Oil 10W-30
Engine Displacement 457cc
Gasoline Capacity 8.3 gal
Oil Capacity 40.5 fl. oz. (1.2 L)
Bore 92 mm
Stroke 69 mm
Engine Speed 3600 rpm
Oil Cooling Type Splash
Bearing Type Stainless steel ball bearing
Cylinder Sleeve	Cast iron sleeve
Fuel Delivery System	Carburetor
Valve Type	OHV
Engine Type	4-Stroke
Engine Cooling Type Forced air
Run Time @ 50% (Gasoline)	9 hr.
Run Time @ 50% (Propane) 7 hr. (40 lb.)
Starting Type	Electric/ Recoil
Noise Level	<74 dB
Neutral System	Floating
AC Rated Frequency	60 Hz
AC Phase	Single
Winding Material	100% copper windings
Suggested Propane Tank Size	40 lbs. minimum
Emissions Compliance	EPA/CARB

TROUBLESHOOTING

This section of the manual is to help you troubleshoot problems with your generator.

TROUBLESHOOTING

Problem Description	Solution
The engine will not start	Engine switch is “Off” Set engine switch to “On”
	Fuel valve is “Closed” Turn the fuel valve to “Open”
	Choke is open Close the choke
	The engine is out of fuel Add fuel
	Fuel is old or contaminated Change fuel
	Spark plug is dirty Clean spark plug
	Spark plug is broken Replace spark plug
	The generator is not level	Move the generator to a level surface
	Oil is low Add/change the oil
Engine runs, but there is no electrical output	The circuit breaker is “Off” Turn “On” circuit breaker
	Wiring connection is bad Replace extension cord(s)
	Device connected to generator is malfunctioning	Disconnect malfunctioning device
The generator runs but does not support all electrical devices connected	Generator is overloaded	Disconnect 1 or more items to reduce the load
	Device connected to the generator is bad	Disconnect malfunctioning device
	The air filter is dirty Clean/ replace the air filter

Changing/ Inspecting the Carbon Brushes

Close-up of a hand holding a blue circular device with visible wiring and components, no text or symbols present.

The carbon brushes in conjunction with the AVR regulates power from the generator. The carbon brushes are wearable parts and should be inspected every 250 running hours.

Close-up of a hand holding a blue circular mechanical component with internal slots, no visible text or symbols.

1. Remove generator cover

Remove the 2 bolts of the generator cover then pull the cover off the generator.

Close-up of a hand holding a metallic tool with wires and connectors (no visible text or symbols)

2. Remove bolt from brush

Remove the bolt holding the carbon brush.

Close-up of mechanical components with visible metal fasteners and wiring (no text or symbols)

3. Disconnect AVR wires

Remove the two wires from the AVR on the carbon brush.

■ TROUBLESHOOTING (CONTINUED)

Changing/ Inspecting the Carbon Brushes (Cont.)

Close-up of a hand adjusting a mechanical component with a tool (no visible text or symbols)

4. Install new brush

Install new carbon brush with bolt.

Close-up of a car battery pack with red and white wires connected to a terminal block (no visible text or symbols)

5. Connect AVR wires

Insert and connect the 2 wires from the AVR, be sure to connect + and - correctly.

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6. Replace generator cover

Replace the back cover of the generator and secure it with the 2 bolts.

Changing/ Inspecting the AVR

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The carbon brushes in conjunction with the AVR regulates power from the generator. If the generator is overheated or overloaded, the AVR may be damaged and require replacement.

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1. Remove generator cover

Remove the 2 bolts of the generator cover then pull the cover off the generator.

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2. Remove AVR bolts

Remove the 2 bolts holding the AVR.

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3. Disconnect AVR wire clip

Disconnect the wire clip.

■ TROUBLESHOOTING (CONTINUED)

Changing/ Inspecting the AVR (Continued)

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4. Disconnect wires from brush

Remove the 2 wires from the AVR on the carbon brush.

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5. Install new AVR

Install the new AVR with the 2 bolts.

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6. Reconnect wires to brush

Insert and connect the 2 wires from the AVR, be sure to connect + and - correctly.

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7. Reconnect the AVR wire clip

Reconnect the wire clip.

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8. Replace generator cover

Replace the back cover of the generator and secure it with the 2 bolts.

R	Red	W	White
Gy	Gray	Y	Yellow	G	Green
Bu	Blue	LB	Light Blue	P	Pink
0	Orange	Br/R	Brown/Red	Bl/W	Black/White
Bl	Black	Br	Brown	G/Y	Green/Yellow

Engine Switch Connecting

All DuroMax Power Equipment warrant the original purchasers to a 5-Year Parts Warranty (Residential Use ONLY: Unusually heavy or commercial use is covered for a period of 1 year) in the event of failure due to defects in electrical or mechanical components. Freight on any items submitted for replacement or repair under the warranty is the responsibility of the equipment owner. This warranty is non-transferable and only valid to the original purchaser.

Warranty Exclusions

The DuroMax Power Equipment warranty does not cover repairs or returns when the fault is: Normal wear and tear, installation use or maintenance services, cosmetic defects, accessories, failures due to acts of god or natural disasters, or problems related to/from aftermarket or non-OEM parts.

Warranty Limitations

DuroMax Power Equipment does not claim or hold any obligation to loss of time, freight charges, use of the product, or any incidental damages from the use of this product. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED.

U.S EPA AND CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS

The California Air Resources Board, The United States Environmental Protection Agency (US EPA) and DuroMax Power Equipment are pleased to explain the emission control system warranty on your 2022-2023 year small off-road engine. In the United States and California, new small off-road engines must be designed built and equipped to meet the State's stringent anti-smog standards. DuroMax Power Equipment must warrant the emission control system on your small off-road engine for the periods of time listed below, provided there has been no abuse neglect or improper maintenance of your small off-road engine.

Your emission control system may include parts such as the carburetor or fuel injection system, the ignition system, and a catalytic converter. Also included may be hoses, belts, connectors, and other emission-related assemblies.

Where a warrantable condition exists, DuroMax Power Equipment will repair your small off-road engine at no cost to you including diagnosis, parts, and labor.

MANUFACTURER'S WARRANTY COVERAGE:

As the small off-road engine owner, you are responsible for the performance of the required

maintenance listed in your owner's manual. DuroMax Power Equipment recommends that you retain all receipts covering maintenance on your small off-road engine, but DuroMax Power Equipment cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.

As the small off-road engine owner, you should, however, be aware that DuroMax Power Equipment may deny you warranty coverage if your small off-road engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications.

You are responsible for presenting your small off-road engine to a DuroMax Power Equipment distribution center as soon as a problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.

If you have any questions regarding your warranty rights and responsibilities, contact DuroMax Power Equipment:

TEL: [phone]

WEBSITE: www.DuroMaxPower.com

ADDRESS: 5800 Ontario Mills Pkwy, Ontario CA 91764

This telephone number is only for the engines which the company name "DuroMax Power Equipment" on the emission label.

DEFECTS WARRANTY REQUIREMENTS:

(a) The warranty period begins on the date the engine or equipment is delivered to an ultimate purchaser.
(b) General Emissions Warranty Coverage. DuroMax Power Equipment warrants to the ultimate purchaser and each subsequent owner that the engine or equipment is:

(1) Designed, built, and equipped so as to conform with all applicable regulations adopted by US EPA & Air Resources Board; and

(2) Free from defects in materials and workmanship that causes the failure of a warranted part for a period of two years.

(c) The warranty on emissions-related parts will be interpreted as below:

(1) Any warranted part that is not scheduled for replacement as required maintenance in the written instructions required by subsection (d) must be warranted for the warranty period defined in Subsection(b)(2). If any such part fails during the period of warranty coverage, it must be repaired or replaced by DuroMax Power Equipment according to

WARRANTY (CONTINUED)

Subsection (4) below. Any such part repaired or replaced under the warranty must be warranted for the remaining warranty period.

(2) Any warranted part that is scheduled only for regular inspection in the written instructions required by subsection (d) must be warranted for the warranty period defined in Subsection (b) (2). A statement in such written instructions to the effect of “repair or replace as necessary” will not reduce the period of warranty coverage. Any such part repaired or replaced under warranty must be warranted for the remaining warranty period.
(3) Any warranted part that is scheduled for replacement as required maintenance in the written instructions required by Subsection (d) must be warranted for the period of time prior to the first scheduled replacement point for that part. If the part fails prior to the first scheduled replacement, the part must be repaired or replaced by DuroMax Power Equipment according to Subsection (4) below. Any such part repaired or replaced under warranty must be warranted for the remainder of the period prior to the first scheduled replacement point for the part.
(4) Repair or replacement of any warranted part under the warranty must be performed at no charge to the owner at a warranty station. (5) Notwithstanding the provisions of Subsection (4) above, warranty services or repairs must be provided at all DuroMax Power Equipment distribution centers that are franchised to service the subject engines.
(6) The owner must not be charged for diagnostic labor that leads to the determination that a warranted part is, in fact, defective provided that such diagnostic work is performed at a warranty station. (7) DuroMax Power Equipment is liable for damages to other engine components proximately caused by a failure under warranty of any warranted part.
(8) Throughout the emissions warranty period defined in Subsection (b)(2), DuroMax Power Equipment must maintain a supply of warranted parts sufficient to meet the expected demand for such parts.
(9) Any replacement part may be used in the performance of any warranty maintenance or repairs and must be provided without charge to the owner such use will not reduce the warranty obligations of DuroMax Power Equipment
(10) Add-on or modified parts that are not exempted by the Air Resources Board may not be used. The use of any non-exempted add-on or modified parts will be grounds for disallowing a warranty claim. DuroMax Power Equipment will not be liable to warrant failures of warranted parts caused by the use of a non-exempted add-on or modified part.
(11) DuroMax Power Equipment issuing the warranty shall provide any documents that describe that manufacturer's warranty procedures or policies within five working days of a request by the US EPA & Air Resources Board.

Exhaust Emission Warranty Parts List.

(1) Fuel Metering System
(i) Carburetor and internal parts (and/or pressure regulator or fuel injection system).
(ii) Air/fuel ratio feedback and control system.
(iii) Cold start enrichment system.
(iv) Fuel tank.
(2) Air induction system
(i) Controlled hot air intake system.
(ii) Intake manifolds.
(iii) Air filter.
(3) Ignition System
(i) Spark Plugs.
(ii) Magneto or electronic ignition system.
(iii) Spark advance/retard system.
(4) Exhaust Gas Recirculation (EGR) System
(i) EGR valve body, and carburetor spacer if applicable.
(ii) EGR rate feedback and control system.
(5) Air Injection System
(i) An air pump or pulse valve.
(ii) Valves affecting the distribution of flow.
(iii) Distribution manifold.
(6) Catalyst or Thermal Reactor System
(i) Catalytic converter.
(ii) Thermal reactor.
(iii) Exhaust manifold.

(7) Particulate Controls

(i) Traps, filters, precipitators, and any other device used to capture particulate emissions.

(8) Miscellaneous Items Used in Above Systems

(i) Electronic controls

(ii) Vacuum, temperature, and time-sensitive valves and switches.

(iii) Hoses, belts, connectors, and assemblies.

DuroMax Power Equipment will furnish with each new engine written instructions for the maintenance and use of the engine by the owner

CUSTOMER SERVICE

DuroMax Power Equipment is committed to ensuring that our products perform when they need to. Our generators are your lifeline in the event of an emergency. Should you have any problems, please contact our customer service department:

DUROMAX POWER EQUIPMENT 5800 Ontario Mills Parkway Ontario, CA 91764

Customer Service: 844-DUROMAX Customer Service Hours: 8-5 PM PST Mon-Fri

Website: www.duromaxpower.com Email: [e-mail]

Woman in white work uniform and headset smiling while using a laptop (no visible text or symbols)

A solid blue square with no text, numbers, or symbols visible.

Pure blue square with no text, numbers, or symbols

Pure blue square with no text, numbers, or symbols

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5800 Ontario Mills Parkway

Ontario, CA 91764

United States

844-DUROMAX