Onan P2500i - Generator Cummins - Free user manual and instructions

Technical Features	Portable inverter generator, 2500 W power, 4-stroke gasoline engine, air cooling.
Dimensions	Compact and lightweight, facilitating transport.
Usage	Ideal for camping, outdoor activities, and as a backup power source.
Fuel Consumption	Efficient, allowing extended use with a moderately sized fuel tank.
Maintenance	Regular oil checks, air filter cleaning, and recommended fuel system maintenance.
Safety	Equipped with overload and short-circuit protections, outdoor use recommended to avoid CO fumes.
General Information	Manufacturer warranty, availability of spare parts, and accessible technical support.

Frequently Asked Questions - Onan P2500i Cummins

How do I start the Cummins Onan P2500i generator?

Make sure the fuel tank is full. Open the fuel valve, turn the switch to the 'ON' position, then pull the starter. The generator should start after a few attempts.

What should I do if the generator does not start?

Check the oil level and fuel. Make sure the battery is charged and the starter is working properly. If the problem persists, consult the user manual for troubleshooting instructions.

How do I know if the generator is overloaded?

The generator has an overload indicator. If this indicator lights up, it means the load exceeds the generator's maximum capacity. Unplug some devices to reduce the load.

What is the capacity of this generator?

The Cummins Onan P2500i has a starting power capacity of 2,500 watts and a continuous power capacity of 2,000 watts.

How do I perform regular maintenance on the generator?

Check and change the oil regularly, clean or replace the air filter, and ensure electrical connections are clean and secure. Consult the manual for specific recommendations.

Can the generator run on E10 fuel?

Yes, the Cummins Onan P2500i can run on fuel containing up to 10% ethanol (E10). Avoid higher ethanol blends that can damage the engine.

What is the runtime of the generator on a full tank of fuel?

Runtime depends on the connected load, but generally, the P2500i can run up to 8 hours on a full tank at 25% load.

How do I store the generator when not in use?

Empty the fuel tank or add a fuel stabilizer to prevent degradation. Store the generator in a dry, cool place and protect it from moisture.

How do I reset the generator after a shutdown due to overheating?

Let the generator cool down for at least 15 minutes. Once cooled, check the oil and fuel levels before restarting the generator.

USER MANUAL Onan P2500i Cummins

SAFETY INSTRUCTIONS....5

SAFETY LABELS AND DECALS....7

CONTROL PANEL COMPONENTS....8

LED DATA DISPLAY....9

GENERATOR COMPONENTS....10

ASSEMBLY

CARTON CONTENTS 11

INITIAL OIL FILL....11

FUEL....12

OPERATION

GENERATOR LOCATION....13

GROUNDING....13

STOPPING THE ENGINE....14

ECO MODE....14

AC CIRCUIT BREAKER....15

OVERLOAD RESET 15

⚠ WARNING: Operating, servicing, and maintaining this equipment can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, and wear gloves or wash your hands frequently when servicing this equipment. For more information go to www.P65warnings.ca.gov.

DISCLAIMERS

All information, illustrations, and specifications in this manual were in effect at the time of publishing. The illustrations used in this manual are intended as representative reference views only. We reserve the right to make any specification or design change without notice.

POWER MANAGEMENT....16

EXTENSION CORDS 16

PARALLEL OPERATION....17

TRANSPORTING....17

MAINTENANCE

MAINTENANCE SCHEDULE ....18

MAINTENANCE REPLACEMENT PARTS....18

ENGINE SERVICE PANEL....18

AIR FILTER MAINTENANCE....18

ENGINE OIL LEVEL CHECK....19

ENGINE OIL CHANGE ....20

SPARK PLUG MAINTENANCE....20

INVERTERS....20

SPARK ARRESTOR SERVICE....21

STORAGE 21

VALVE CLEARANCE....22

TROUBLESHOOTING

TROUBLESHOOTING....23

EXPLODED VIEWS AND PARTS LISTS

ENGINE EXPLODED VIEW....24

ENGINE PARTS LIST 25

GENERATOR EXPLODED VIEW....27

GENERATOR PARTS LIST....28

SCHEMATICS

SCHEMATICS....30

ESPAÑOL....31

FRANÇAIS......56

ALL RIGHTS RESERVED

All rights reserved. No reproduction allowed in any form without written permission from without the written permission of Cummins Inc.

DANGER

Read this manual before using or performing maintenance on this product. Failure to follow the instructions and safety precautions in this manual can result in serious injury or death.

SAVE THESE INSTRUCTIONS

SPECIFICATIONS

Specifications
Running Watts:	2200
Peak Watts:	2500
Rated Voltage:	120V
Rated frequency:	60 Hz
Phase:	Single phase
Total Harmonic Distortion:	≤ 3%
Engine Displacement:	98 cc
Starting Type:	Recoil
Fuel Capacity:	Gallon (3.8 L)
Fuel Type:	87-93 octane*
Oil Capacity:	0.37 US qt (0.35 L)
Oil Type:	10W-30
Spark Plug:	A064D659 (E6RTC)
Spark Plug Gap:	0.024 - 0.032 in.(0.60 - 0.80 mm)
Valve Intake Clearance:	0.0031 - 0.0047 in.(0.08 - 0.12 mm)
Valve Exhaust Clearance:	0.0051 - 0.0067 in.(0.13 - 0.17 mm)
AC Grounding System:	Floating neutral
Voltage Regulator:	Digital
Alternator Type:	Permanent magnet
Maximum Ambient Temperature:	104°F (40°C)
Certifications:	· EPA

*Ethanol content of 10% or less. DO NOT use E15 or E85.

NOTICE

This product is designed and rated for continuous operation at ambient temperatures up to 104°F (40°C). If needed, this product can be operated at temperatures ranging from 5°F (15°C)–122°F (50°C) for short periods. If the product is exposed to temperatures outside of this range during storage, it should be brought back within this range before operation. This product must ALWAYS be operated outdoors in a well-ventilated area and away from doors, windows, and other vents.

Maximum wattage and current are subject to and limited by such factors as fuel BTU content, ambient temperature, altitude, engine conditions, etc. Maximum power decreases about 3.5% for each 1,000 feet above sea level, and will also decrease about 1% for each 10°F (6°C) above 60°F (16°C) ambient temperature.

PRODUCT REGISTRATION

To ensure trouble-free warranty coverage, it is important you register your Cummins generator.

You can register your product on-line at:

www.cummins.com/support/product-registration

For Your Records

Date of Purchase:

Model Number:

Serial Number:

Place of Purchase:

IMPORTANT: Keep your purchase receipt for trouble-free warranty coverage.

To register your inverter you will need to locate the following information:

Model Information Serial Number 0000000000000000

For Your Records

Date of Purchase:

Model Number:

Serial Number:

Place of Purchase:

IMPORTANT: Keep your purchase receipt for trouble-free warranty coverage.

1-800-CUMMINS

(1-800-286-6467)

SAFETY

SAFETY DEFINITIONS

The words DANGER, WARNING, CAUTION and NOTICE are used throughout this manual to highlight important information. Make sure that the meanings of this safety information is known to all who operate, perform maintenance on, or are near the generator.

This safety alert symbol appears with most safety statements. It means attention, be alert, your safety is involved! Please read and follow the message that follows the safety alerts symbol.

▲ DANGER

Indicates a hazardous situation which, if not avoided will result in death or serious injury.

WARNING

Indicates a hazardous situation which, if not avoided could result in death or serious injury.

CAUTION

Indicates a hazardous situation which, if not avoided could result in minor or moderate injury.

NOTICE

Indicates a situation which can cause damage to the generator, personal property, and/or the environment, or cause the equipment to operate improperly.

Note: Indicates a procedure, practice or condition that should be followed for the generator to function in the manner intended.

SAFETY SYMBOLS

Follow all safety information contained in this manual and on the generator.

Symbol Description
	Safety Alert Symbol
	Electrocution Hazard
	Asphyxiation Hazard
	Burn Hazard. DO NOT touch hot surfaces.
	Electrical Shock Hazard
	Fire Hazard
	Maintain Safe Distance
	Lifting Hazard
	Read Manufacturer's Instructions
	Do Not Operate in Wet Conditions

SAFETY INSTRUCTIONS

CORRECT USE

Example location to reduce risk of carbon monoxide poisoning

• ONLY use outside and downwind, far away from windows, doors and vents.
• Direct exhaust away from occupied spaces

oning Exhaust (CO) Only use OUTSIDE and FAR AWAY from windows, doors, and vents. CO Detectors in living areas

INCORRECT USE

DO NOT operate in any of the following locations:

• Near any door, window, or vent
- Garage
- Basement
- Crawl Space
- Living Area
- Attic
- Entry Way
- Porch
- Mudroom

graph TD
    A["Backpack"] --> B["Exhaust"]
    B --> C["Living Area"]
    C --> D["Basement Crawlspace"]
    D --> E["Entryway Porch Mud Room"]
    E --> F["Garage"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333

NOTICE

Install battery-powered carbon monoxide detectors or plug-in carbon monoxide detectors with battery back-up in living areas.

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.

DANGER

Fire and electrocution hazard. DO NOT connect to a building's electrical system unless the generator and transfer switch have been properly installed and the electrical output has been verified by a qualified electrician. The connection must isolate the generator power from utility power and must comply with all applicable laws and electrical codes.

DANGER

Electrocution hazard. NEVER use the generator in a location that is wet or damp. NEVER expose the generator to rain, snow, water spray, or standing water while in use. Protect the generator from all hazardous weather conditions. Moisture or ice can cause a short circuit or other malfunction in the electrical circuit.

GENERAL SAFETY PRECAUTIONS

• NEVER use the generator to power medical support equipment.
• DO NOT operate the generator when you are tired or under the influence of drugs, alcohol, or medication.
• DO NOT use generator with electrical cords which are worn, frayed, bare, or otherwise damaged. ALWAYS use grounded extension cords.
• All electrical tools and appliances operated from this generator must be properly grounded by use of a third wire or be double-insulated.
• When a generator is used to supply a building wiring system the generator must be installed by a qualified electrician and connected to a transfer switch as a separately derived system in accordance with NFPA 70, National Electrical Code.
• If you begin to feel sick, dizzy, or weak while using the generator, move to fresh air IMMEDIATELY. See a doctor, as you can have carbon monoxide poisoning.
• Only use OUTSIDE and far away from windows, doors, and vents as recommended by the US Department of Health and Human Services Centers for Disease Control and Prevention. Your specific home and/or wind conditions may require additional distance.
• While operating and storing, keep at least five feet of clearance on all sides of the generator, including overhead. Allow the generator to cool a minimum of 30 minutes before storage. Heat created by the muffler and exhaust gases could be hot enough to cause serious burns and/or ignite combustible objects.
• DO NOT touch the muffler or engine. They are very HOT and will cause severe burns. DO NOT put body parts or any flammable or combustible materials in the direct path of the exhaust.
• ALWAYS remove any tools or other service equipment used during maintenance away from the generator before operating.
• Avoid skin contact with engine oil or gasoline. Wear protective clothing and equipment. Wash all exposed skin with soap and water.

FUEL SAFETY

• Store fuel in a container approved for gasoline.
• Only fill fuel tank with gasoline.
• Keep sparks, open flames or other form of ignition (such as match, cigarette, static electric source) away when refueling.
• DO NOT allow the generator's gas tank to overflow when filling.
• Check for fuel leaks after refueling. NEVER operate the engine if a fuel leak is discovered.
• Shut down the engine and allow it to cool for two minutes before adding gasoline or oil to the generator.
• NEVER remove the fuel cap when the generator is running. Shut off the engine and allow the unit to cool at least five minutes. Remove the fuel cap slowly to release pressure, keep fuel from escaping around the cap, and to avoid the heat from the muffler igniting fuel vapors. Tighten the fuel cap securely after refueling.
• Wipe spilled fuel from the unit. NEVER attempt to burn off spilled fuel.
• NEVER overfill the fuel tank. Leave room for fuel to expand. Overfilling the fuel tank can result in a sudden overflow of gasoline and result in spilled gasoline coming in contact with HOT surfaces.
• Spilled fuel can ignite. If fuel is spilled on the generator, wipe up any spills immediately. Dispose of rag properly. Allow area of spilled fuel to dry before operating the generator.
• Wear eye protection while refueling.
• NEVER use gasoline as a cleaning agent.
• Store any containers containing gasoline in a well-ventilated area, away from any combustibles or source of ignition. DO NOT store gasoline near furnaces, water heaters, or any other appliances that produce heat or have automatic ignitions.
• NEVER touch an operating inverter if the inverter is wet or if you have wet hands.
• NEVER operate the inverter in highly conductive areas such as around metal decking or steel works.
• NEVER touch live terminals or bare wires while the inverter is operating.
• NEVER modify the inverter.
• NEVER operate the inverter if it vibrates at high levels, if engine speed changes greatly, or if the engine misfires often.
• ALWAYS disconnect tools or appliances from the inverter before starting.
• NEVER operate the inverter if powered items overheat, electrical output drops, there is sparking, flames or smoke coming from the inverter, or if the receptacles are damaged.

Fire and explosion hazard. Gasoline is highly explosive and flammable and can cause severe burns or death.

• In case of a gas fire, do not attempt to extinguish the flame if the fuel valve is in the gas position. Introducing an extinguisher to a generator with an open fuel valve could create an explosion hazard.
  • Gas has a distinctive odor, this will help detect potential leaks quickly.
  • Gas vapors can cause a fire if ignited.
  • Gasoline is a skin irritant and needs to be cleaned up immediately if it comes in contact with the skin.

When starting the generator:

• Make sure that the fuel cap, air filter, spark plug, fuel lines, and exhaust system are properly in place.
• If you spill any gasoline on the tank, allow it to fully evaporate before operating.
• Make sure the generator is on a flat surface before operating.

When transporting or servicing the generator:

- Disconnect the spark plug wire to prevent accidental starting.

When storing the generator:

- Store away from sparks, open flames, pilot lights, heat, and other sources of ignition.

SAFETY LABELS AND DECALS

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200

CONTROL PANEL COMPONENTS

Cummins® ECO MODE MODE ECO PARALLEL OPERATION SALIDA EN PARIALELO | OPERATION PARALLELE 120V AC MAX18.3A 1 2 3 4 5 6 7 8 9 10 DC 8A 2.1A 2.1A USB=DC 5V 12V DC 8A RESET REINICIAR | REINITIALISER AC 18A DIGITAL DATA CENTER C INTRO DE DATOS DIGITALES CENTRE DE DONNEES NUMERIQUES 100% 75% 50% 25% OVERTILLOAD SOME/CARGA | OUTR/CARGA OUTPUT READY COMMER LEATTO MINTU FREE E P Kw L DL U+ v 80° NEUTRAL FLOATING NEUTRO FLOATANTE NUTRE FLOATANT DC SYSTEM FLOATING SISTEMA DC FLOATANTE DC RESCAU FLOATANT

1. ECO Mode: ECO mode minimizes fuel consumption and noise by adjusting the engine RPM to the minimum required for the current load.
2. Parallel Operation Outlets: A compatible Cummins Inverter Generator can be connected for additional power output.
3. 120 Volt AC, 20 Amp Duplex NEMA 5-20R Receptacle: Receptacle can supply a maximum of 18.3 Amps.
4. 18 Amp AC Circuit Breaker: Circuit breaker limits the current that can be delivered through the NEMA 5-20R receptacle to 18 Amps.

5. Ground Terminal: The ground terminal is used to externally ground the generator.

6. Data Display: Displays remaining run time (F), power output in kW (P), fuel level in liters (L), voltage output (V), and lifetime hours.

7. Overload Reset: The generator inverter will automatically switch OFF all AC output to protect the generator if overloaded or if there is a short circuit in a connected appliance.
8. 12 Volt DC Outlet: 12 Volt DC / 8 Amp output.
   9.8 Amp DC Breaker: Circuit breaker limits the current that can be delivered through the 12 Volt DC outlet to 8 Amps.
9. USB Ports: Two-port 5V/2.1A USB outlet. Accepts Type A USB plugs.

LED DATA DISPLAY

DIGITAL DATA CENTER CENTRO DE DATOS DIGITALES CENTRE DE DONNÉES NUMÉRIQUES 88:88 OUTPUT READY CORRIENTE LISTO SORTIE PRÊT OVERLOAD SOBRECARGA | SURCHARGE F E 7 6 5 100% 75% 50% 25% 0%

1. Output Ready LED: Illuminates when the generator is operating normally. Indicates the generator is producing electrical power at the receptacles.
2. Overload LED: Indicates that the generator is overloaded. See OVERLOAD RESET.
3. Low Oil LED: Indicates low oil level. When the oil level in the crankcase falls below the safe operating limit, the low oil level indicator will illuminate and the generator will automatically shut off the engine.

4. Fuel Level Indicator: Displays estimated fuel level percentage. Four green LEDs indicate a full tank. One green LED indicates the unit is almost out of fuel. For exact fuel liters in tank, refer to the "L" number in the Data Display.

5. Power Output Indicator: Displays estimated output percentage. For exact output, refer to the 'P' number in the Data Display.

6. Mode Button: Push the mode button to manually cycle through the Data Display.
7. Data Display: Displays remaining run time (F), power output in kW (P), fuel level in liters (L), voltage output (V), and lifetime hours.

DATA DISPLAY

Remaining Run Time:

Displays time remaining with current fuel level and power output.

Power Output:

Displays electrical power output to receptacles in kilowatts.

Fuel level:

Displays current fuel level in liters.

Voltage:

Displays current voltage output of inverter.

Lifetime Hours:

Displays the total run time of the inverter.

GENERATOR COMPONENTS

1. Engine Service Panel: Remove the panel to access the engine for maintenance.
2. Model Information Label: Provides voltage/amps, and power rating information.
3. Fuel Cap: Add unleaded gasoline here.
4. Transport Handle: Use to move and position the generator.
5. Muffler and Spark Arrestor: The spark arrestor prevents sparks from exiting the muffler.

6. Control Panel: The control panel contains the outlets, circuit breakers, and data display.

7. Engine Cooling Vents: Helps move airflow in unit to regulate engine temperatures. DO NOT BLOCK.

8. Oil Access Cover: Remove to service oil.
9. Engine Fuel Control Switch: Used to turn fuel valve to the run, choke, or OFF position.
10. Recoil Handle: Pull the recoil handle to manually start the engine.

ASSEMBLY

CARTON CONTENTS

1. Carefully open the carton.
2. Remove and save the instruction manual, oil bottle, oil funnel, spark plug socket wrench, screwdriver, and 12V adapter.
3. Remove and discard the packing materials.
4. Unfold the top of the plastic bag enclosing the generator.
5. Carefully cut the vertical corners of the carton to access the generator.
6. Recycle or dispose of the packaging materials properly.

CARTON CONTENTS

• Operator Manual
• Quick Start Guide
  • 0.37 Quart (0.35 Liter) bottle of SAE 10W-30 Oil
• Screwdriver
• Spark plug socket wrench
• Oil funnel
• 6 mm to 12V DC adapter

If any parts are missing, contact our service team at 1-800-286-6467.

INITIAL OIL FILL

NOTICE

THIS GENERATOR HAS BEEN SHIPPED WITHOUT OIL. DO NOT attempt to crank or start engine before it has been properly serviced with recommended oil. Failure to add engine oil before starting will result in serious engine damage.

NOTICE

Use of 2-stroke/cycle oil or other unapproved oil types can cause severe engine damage that is not covered under warranty.

The included, recommended oil type for typical use is 10W-30 engine oil. If running the generator in extreme temperatures, refer to the following chart.

1. On a level surface, turn the locking knob to unlock the engine service panel.

Note: Carefully pull outward in small increments to pull the panel posts from the grommets holding the panel in place.

Technical diagram of a mechanical device with labeled parts and a circular component, showing assembly steps.

1. Remove the oil access cover then the oil dipstick. Using the supplied funnel and oil, add oil into the engine.

Technical line drawing of a mechanical assembly with a tool and directional arrow indicating motion (no text or symbols)

Note: As residual oil from the factory may remain in the engine, add the oil incrementally near the end of the bottle to prevent overfilling the engine. See Engine Oil Level Check in the Maintenance section.

1. Replace the oil dipstick and hand-tighten.
2. Replace the oil access cover and engine service panel.

FUEL

WARNING

Fire and explosion hazard. NEVER use a gasoline container, gasoline tank, or any other fuel item that is broken, cut, torn or damaged.

▲ DANGER

Fire and explosion hazard. DO NOT overfill fuel tank. Fill only to the red fill ring located in the in-tank fuel screen filter. Overfilling may cause fuel to spill onto engine causing a fire or explosion hazard.

▲ DANGER

Fire and explosion hazard. NEVER refuel the generator while the engine is running. ALWAYS turn the engine off and allow the generator to cool for two minutes before refueling.

NOTICE

DO NOT use E15 or E85 fuel in this product. Engine or equipment damage caused by stale fuel or the use of unapproved fuels (such as E15 or E85 ethanol blends) is not covered by warranty. Only use unleaded gasoline containing up to 10% ethanol.

FUEL REQUIREMENTS

• CLEAN, FRESH, unleaded gasoline, 87–93 octane.
• Up to 10% ethanol (gasohol) is acceptable (where available; non-ethanol fuel is recommended).
  • DO NOT use E85 or E15.
• DO NOT use a gas oil mix.
• DO NOT modify the engine to run on alternate fuels.
  • DO NOT fuel indoors.
• DO NOT create a spark or flame while fueling.

USING FUEL STABILIZER

Adding a fuel stabilizer (not included) extends the usable life of fuel and helps prevent deposits from forming that can clog the fuel system. Follow the manufacturer's instructions for use.

ALWAYS mix the correct amount of fuel stabilizer to gasoline in an approved gasoline container before fueling the generator. Run the generator for five minutes to allow the stabilizer to treat the entire fuel system.

FILLING THE FUEL TANK

IMPORTANT: Only add gasoline when the generator is OFF and allowed to cool for a minimum of two minutes before fueling.

1. Place the generator on level ground in a well ventilated area.
2. Clean the area around fuel cap and remove the cap slowly.

NOTICE

Only fill the tank from an approved gasoline container. Make sure the gasoline container is internally clean and in good condition to prevent fuel system contamination.

1. Slowly add the recommended fuel. DO NOT overfill. Fill only to the red maximum fill ring on the fuel screen filter visible in the filler neck.

Fuel Cap Screen Filter Maximum Fuel Level

1. Install the fuel cap. Tighten until a click is heard.

NOTICE

Fuel can damage paint and plastic. Use caution when filling the fuel tank. Damage caused by spilled fuel is not covered under warranty.

NOTICE

Clean the fuel screen filter of debris before and after each fueling. Remove the fuel screen filter by slightly compressing it while removing it from the fuel tank.

OPERATION

GENERATOR LOCATION

Read and understand all safety information before starting 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.

Diagram showing two scenarios: one with a house and a car, another with a car and a prohibition symbol.

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.

NEVER operate the generator inside any building, including garages, basements, crawlspaces, sheds, enclosure, or compartment, including the generator compartment of a recreational vehicle.

▲ DANGER

Electrocution hazard. NEVER use the generator in a location that is wet or damp. NEVER expose the generator to rain, snow, water spray, or standing water while in use. Protect the generator from all hazardous weather conditions. Moisture or ice can cause a short circuit or other malfunction in the electrical circuit. Using a generator or electrical appliance in wet conditions, such as rain or snow, or near a pool or sprinkler system, or when your hands are wet, could result in electrocution

WARNING

Fire hazard. Only operate the generator on a solid, level surface. Operating the generator on a surface with loose material such as sand or grass clippings can cause debris to be ingested by the generator that could block cooling vents or the air intake system. Allow the generator to cool for 30 minutes before transport or storage.

The generator should be on a flat, level surface at all times (Even while not in operation). The generator must have at least 5 ft. (1.5 m) of clearance from all combustible material.

DO NOT operate the generator in the back of a SUV, camper, trailer, truck bed (regular, flat, or otherwise), under stairs, next to walls or buildings, or in any other location that will not allow for adequate cooling of the generator and/or the muffler. DO NOT contain generators during operation.

▲ DANGER

Asphyxiation hazard. Place the generator in a well-ventilated area. DO NOT place the generator near vents or intakes where exhaust fumes could be drawn into occupied or confined spaces. Carefully consider wind and air currents when positioning generator.

GROUNDING

▲ WARNING

Shock hazard. Failure to properly ground the generator can result in electric shock.

The generator neutral is floating. The generator ground terminal is connected to the frame of the generator, the metal non-current-carrying parts of the generator, and the ground terminals of each receptacle. The generator (stator winding) is isolated from the frame and from the AC receptacle ground pin. Electrical devices that require a grounded receptacle pin connection may not function properly.

If this generator will be used only with cord and plug equipment connected to the receptacles mounted on the generator, National Electric Code does not require that the unit be grounded. However, other methods of using the generator may require grounding to reduce the risk of shock or electrocution.

NOTICE

Only use grounded 3-prong extension cords, tools, and appliances, or double-insulated tools and appliances.

Before using the ground terminal, consult a qualified electrician, electrical inspector, or local agency having jurisdiction for local codes or ordinances that apply to the intended use of the generator.

Engine power is reduced the higher you operate above sea level. Output will be reduced approximately 3.5% for every 1000 feet of increased altitude from sea level.

High altitude adjustment is required for operation at altitudes over 2,000 ft. (762 m). Operation without this adjustment will cause decreased performance, increased fuel consumption, and increased emissions.

High Altitude Carburetor Kit: Part# A066Z194

NOTICE

DO NOT operate the generator at altitudes below 2,000 ft. (762 m) with the high altitude kit installed. Engine damage may occur.

BREAK-IN PERIOD

For proper break-in, do not exceed 50% of the rated running watts (1100 watts) during the first five hours of operation. Vary the load occasionally to allow stator windings to heat and cool and help seat the piston rings.

FREQUENCY OF USE

If the generator will be used on an infrequent or intermittent basis (more than one month before next use), refer to the Storage section of this manual for information regarding fuel deterioration.

BEFORE STARTING THE GENERATOR

Verify that:

• The generator is placed in an safe, appropriate location.
  • The generator is on a dry, flat, and level surface.
  • The engine is filled with oil.
  • Gasoline is in the fuel tank.
• All loads are disconnected.
  • The ECO switch is in the OFF position.

▲ DANGER

Fire and explosion hazard. DO NOT move or tip the generator during operation.

STARTING THE ENGINE

1. For cold starting, turn the engine fuel control switch to the CHOKE position.

Note: If you are restarting with the engine warm from operation, turn the switch to RUN.

OFF Storage RUN Re-start CHOKE Cold Start

1. Firmly grasp and pull the recoil handle slowly until you feel increased resistance, then pull rapidly.

Line drawing of a hand operating a portable air conditioner unit with a hand adjusting the interior panel (no text or symbols)

1. After the engine starts, turn the fuel switch to the RUN position.

OFF Storage RUN Re-start CHOKE Cold Start

STOPPING THE ENGINE

1. Turn off and unplug all connected electrical loads. NEVER start or stop the generator with electrical devices attached.
2. Let the generator run with no load for several minutes to stabilize internal temperatures.
3. Turn the fuel switch to the OFF position.

OFF Storage RUN Re-start CHOKE Cold Start

Note: If there is an emergency and the inverter must be stopped quickly, immediately move the fuel switch to the OFF position.

ECO MODE

NOTICE

ALWAYS start the generator with ECO MODE OFF. Allow the engine speed to stabilize and the OUTPUT READY LED to illuminate before switching ECO MODE ON.

ECO MODE COMBUSTIBLE EFICIENTE COMMUTATEUR D'ÉCONOMIE

NOTE: DO NOT use ECO MODE when in parallel operation.

ECO MODE minimizes fuel consumption and noise by adjusting the engine RPM to the minimum required for the current load.

Turn ECO MODE ON when powering small appliances with continuous loads such as a computer or electric light.

Turn ECO MODE OFF when powering large surge loads such as an air conditioner or electric pump.

To turn on ECO MODE, verify that the OUTPUT READY LED is illuminated green, then push the switch to the ON position. If no load is present, the generator RPM will drop to idle speed. The generator will detect loads as they are applied and increase engine RPM.

To run the generator at maximum power and RPM, push the ECO MODE switch to the OFF position.

AC CIRCUIT BREAKER

The circuit breaker will automatically switch OFF if there is a short circuit, a significant overload of the generator at the receptacle, or if the combined load exceeds 18 Amps.

If the AC circuit breaker switches OFF automatically, check that the appliance is working correctly and it does not exceed the rated load capacity of the circuit before resetting the circuit breaker.

ON OFF Push to Reset

OVERLOAD RESET

The generator will automatically switch OFF all AC output to protect the generator if overloaded or if there is a short circuit in a connected appliance. However, the engine will continue to run. Marginal overloading that temporarily illuminates the OVERLOAD LED may shorten the service life of the generator.

OVERLOAD on the control panel will illuminate red and the green OUTPUT READY will be OFF.

To restore AC output:

1. Turn off and unplug all connected electrical loads.
2. Push the RESET button on the control panel until the OVERLOAD LED goes OFF and the OUTPUT READY LED is illuminated.

1. Reset the circuit breaker if OFF.

2. Verify that the intended running and surge loads do not exceed the generator's capacity.

3. Reconnect electrical loads sequentially, allowing the generator to stabilize after each load is connected.

GENERATOR CAPACITY

NOTICE

DO NOT overload the generator's capacity. Exceeding the generator's wattage/amperage capacity can damage the generator and/or electrical devices connected to it.

Make sure the generator can supply enough continuous (running) and surge (starting) watts for the items you will power at the same time.

The total power requirements (Volts x Amps = Watts) of all appliances connected must be considered. Appliance and power tool manufacturers usually list rating information near the model or serial number.

To determine power requirements:

1. Select the items you will power at the same time.
2. Total the continuous (running) watts of these items. This is the amount of power the generator must produce to keep the items running. See the wattage reference chart on the next page.
3. Estimate how many surge (starting) watts you will need. Surge wattage is the short burst of power needed to start electric motor-driven tools or appliances such as a circular saw or refrigerator. Because not all motors start at the same time, total surge watts can be estimated by adding only the item(s) with the highest additional surge watts to the total rated watts from step 2.

Example:

Tool or Appliance	Running Watts*	Starting Watts*
TV (Tube Type) 300 0
RV Refrigerator 180 600
Radio 200 0
Light (75 Watts) 300 0
Coffee Maker 600 0
	1580 Total	600
	Running Watts*	Highest Starting Watts*
Total Running Watts 1580
Highest Starting Watts + 600
Total Starting Watts Needed 2180

*Wattages listed are approximate. Verify actual wattage.

POWER MANAGEMENT

To prolong the life of the generator and attached devices, use care when adding electrical loads to the generator. There should be nothing connected to the generator outlets before starting the engine. The correct and safe way to manage generator power is to sequentially add loads as follows:

1. With nothing connected to the generator, start the engine as described in this manual.
2. Plug in and turn on the first load, preferably the largest load you have.
3. Permit the generator output to stabilize (engine runs smoothly and attached device operates properly).
4. Plug in and turn on the next load.
5. Again, permit the generator to stabilize.
6. Repeat steps 4 and 5 for each additional load.

Wattage Reference

Tool or Appliance	Estimated Running Watts*	Estimated Starting Watts*
Incandescent Lights(4 Quantity x 75 Watts)	300 0
TV (Tube Type) 300 0
Sump Pump (1/3 hp) 800 1300
Refrigerator or Freezer 700 2200
Well Pump (1/3 hp) 1000 2000
Radio 200 0
Drill (3/8", 4 amps) 440 600
Circular Saw(Heavy Duty, 7-1/4")	1400 2300
Miter Saw (10") 1800 1800
Table Saw (10")	2000 2000

*Wattages listed are approximate. Verify actual wattage.

EXTENSION CORDS

▲ WARNING

Asphyxiation hazard. Extension cords running directly into the home increase the risk of carbon monoxide poisoning through any openings. If an extension cord running directly into your home is used to power indoor items, there is a risk of carbon monoxide poisoning to people inside the home. ALWAYS use battery-powered carbon monoxide detector(s) that meet current UL 2034 safety standards when running the generator. Regularly check the detector(s) battery.

▲WARNING

Asphyxiation hazard. When operating the generator with extension cords, make sure the generator is located in an open, outdoor area, at least 20 ft. (6 m.) from occupied spaces with exhaust pointed away.

▲ WARNING

Fire and electrocution hazard. NEVER use worn or damaged extension cords. Damaged or overloaded extension cords could overheat, arc, and burn resulting in death or serious injury.

Before connecting an AC appliance or power cord to the generator:

• Use grounded 3-prong extension cords, tools, and appliances, or double-insulated tools and appliances.
• Make sure the tool or appliance is in good working order. Faulty appliances or power cords can create a potential for electric shock.
• Make sure the electrical rating of the tool or appliance does not exceed the rated power of the generator or the receptacle being used.

EXTENSION CORD SIZING

Only use grounded 3-prong extension cords marked for outdoor use that are rated for the electrical load.

Total Amperage	Minimum Gauge, Outdoor Rated
	Up to 50 FT (15 M)	Up to 100 FT (30 M)
Up to 10A
Up to 15A
Up to 20A
Up to 30A
Up to 35A

PARALLEL OPERATION

WARNING

Fire and electrocution hazard. NEVER connect or disconnect the parallel cord leads when a generator is running.

NOTICE

Connecting to a generator that is not compatible can cause a low voltage output that can damage tools and appliances powered by the generator.

Parallel operation gives you the ability to link the P2500i to an additional P2500i Inverter Generator for combined running and peak power output. A Cummins 30A Parallel Kit (purchased separately) is required for parallel operation.

NOTE: DO NOT use ECO MODE when in parallel operation.

1. On both generators, make sure the engine/fuel knob and the ECO MODE switch are in the OFF position.

2. Connect two parallel cable leads to the parallel outlets on the first generator, then connect the opposite cable leads to the other generator's parallel outlets.

Note: If powering devices directly from the generators (not connected to a building's transfer switch), you do not need to match the left/right cables to the generator's parallel outlets.

1. Start one of the generators and wait until the OUTPUT READY LED illuminates.
2. Start the second generator and wait until the OUTPUT READY LED illuminates before connecting a load.
3. Connect additional loads as described in Power Management section.
4. Unplug all loads before stopping the generators.

TRANSPORTING

• Allow the generator to cool a minimum of 30 minutes before transporting.
• Replace all protective covers on the generator control panel.
• Only use the generator's fixed handle to lift the unit or attach any load restraints such as ropes or tie-down straps. DO NOT attempt to lift or secure the generator by holding onto any of its other components.
• Keep the unit level during transport to minimize the possibility of fuel leakage or, if possible, drain the fuel or run the engine until the fuel tank is empty before transport.

MAINTENANCE

MAINTENANCE SCHEDULE

Regular maintenance will improve performance and extend the service life of the generator. Follow the hourly or calendar intervals, whichever occurs first. More frequent service is required when operating in adverse conditions as noted below.

Before Each Use

Check engine oil

After First 25 Hours or First Month

Change engine oil

After 50 Hours or Every 6 Months

Change engine oil ^1

Clean air filter ^2

After 100 Hours or Every 6 Months

Inspect/clean spark arrestor

Inspect/clean spark plug

Replace fuel filter ^3

Inspect/adjust valve clearance ^3

After 300 Hours or Every Year

Replace spark plug

Replace air filter

1 Change oil every month when operating under heavy load or in high temperatures.
2 Clean more often under dirty or dusty conditions. Replace air filter if it cannot be adequately cleaned.
3 Recommend service to be performed by authorized Cummins service dealer.

MAINTENANCE REPLACEMENT PARTS

Description Part Number

Air filter	A064D486
Spark arrestor	A064D501
Fuel filter	A076L998
Spark plug	A064D659 (E6RTC)

ENGINE SERVICE PANEL

Remove the engine service panel to access the air filter, carburetor, oil fill/drain, and oil dipstick.

1. On a level surface, turn the locking knob to unlock the engine service panel.

2. Carefully pull outward in small increments to pull the panel posts from the grommets holding the panel in place.

Technical diagram of a mechanical device with labeled parts including wrench, lock, switch, and rotary knob

AIR FILTER MAINTENANCE

WARNING

Fire hazard. NEVER use gasoline or other flammable solvents to clean the air filter. Use only household detergent soap to clean the air filter.

The air filter must be cleaned after every 50 hours of use or six months (frequency should be increased if the generator is operated in a dusty environment).

1. Place the generator on a level surface and allow the engine to cool for several minutes.
2. Remove the engine service panel.
3. Remove the screw securing the air cleaner cover. Tip the cover down to remove.

Screw

Note: The air filter element is oil soaked. Use an appropriate cleaning container.

NOTICE

Avoid skin contact with engine oil. Wear protective clothing and equipment. Wash all exposed skin with soap and water.

1. Remove the foam air filter from the air cleaner housing and wash it by submerging the element in a solution of household detergent soap and warm water. Slowly squeeze the foam to thoroughly clean.

NOTICE

DO NOT twist or tear the foam air filter element during cleaning or drying. Only apply slow but firm squeezing action.

1. Rinse the air filter element by submerging it in fresh water and applying a slow squeezing action. Allow the 2 filter to dry thoroughly.

NOTICE

DO NOT pollute. Follow the guidelines of the EPA or other governmental agencies for proper disposal of hazardous materials. Consult local authorities or reclamation facility.

1. Dip the foam air filter in clean engine oil then squeeze out all excess oil. The engine will smoke when started if too much oil is left in the filter.
2. Install the foam air filter in the housing and reinstall the air cleaner cover.
3. Install the engine service panel.

ENGINE OIL LEVEL CHECK

▲ CAUTION

Avoid skin contact with engine oil. Wear protective clothing and equipment. Wash all exposed skin with soap and water.

NOTICE

ALWAYS use the specified engine oil. Failure to use the specified engine oil can cause accelerated wear and/or shorten the life of the engine.

When using the generator in dirty, dusty conditions or in extremely hot weather, change the oil more frequently.

Ambient air temperature will affect engine oil performance. Change the type of engine oil used based on weather conditions.

Check the engine oil level before each use or every 8 hours of operation.

1. Place the generator on a level surface and allow the engine to cool for several minutes.
2. Remove the engine service panel and oil access cover.
3. With a damp rag, clean around the oil dipstick.
4. Remove the oil dipstick and wipe the dipstick clean.

Technical line drawing of a mechanical assembly with a tool interacting with a component (no text or symbols present)

1. Insert the dipstick into the oil filler neck without screwing it in. Remove the dipstick and verify that the oil level is within safe operating range between the low (L) and high (H) marks on the dipstick.

Safe Operating Range L H

1. If low, add recommended engine oil incrementally and recheck until the level is between the L (low) and H (high) marks on the dipstick. DO NOT overfill. If over the full mark on dipstick, drain the oil to reduce oil level to the full mark on dipstick.
2. Replace the oil dipstick and hand-tighten.
3. Install the oil access cover and engine service panel.

ENGINE OIL CHANGE

WARNING

Accidental start-up. Remove the spark plug boot from the spark plug when performing maintenance on the generator.

When using the generator in dirty, dusty conditions or in extremely hot weather, change the oil more frequently. Change the oil while the engine is still warm from operation.

1. Place the generator on a level surface and allow the engine to cool for several minutes.
   Note: Placing the generator on a raised surface slightly above the oil collection pan will facilitate draining.
2. Remove the engine service panel and oil access cover. Disconnect the spark plug wire from the spark plug and place the wire where it cannot contact the spark plug.
3. With a damp rag, clean around the oil dipstick. Remove the dipstick and wipe clean.
4. Place an oil collection pan (or suitable container) under the oil fill/drain hole.
5. Tilt the generator to drain the oil.

Line drawing of a portable electronic device with internal components and a base mount (no text or symbols)

1. Slowly pour oil into the oil fill opening until oil the level is between the L and H marks on the dipstick. Stop frequently to check the oil level. Before each check, wipe the dipstick clean then fully thread the dipstick into the oil filler neck. Remove the dipstick and check the oil level. DO NOT overfill.

Maximum oil capacity: 0.37 US qt (0.35 L)

1. Replace the dipstick and hand-tighten.
2. Connect the spark plug wire. Install the oil access cover and engine service panel.

NOTICE

DO NOT pollute. Follow the guidelines of the EPA or other governmental agencies for proper disposal of hazardous materials. Consult local authorities or reclamation facility.

SPARK PLUG MAINTENANCE

INVERTERS

NOTICE

Always use the Westinghouse OEM or compatible resistor-type spark plug. Use of a non-resistor spark plug can result in rough idling, misfire, or damage to generator components.

Inspect and clean the spark plug after every 100 hours of use or six months. Replace the spark plug after 300 hours of use or every year.

1. Place the generator on a level surface and allow the engine to cool.
2. Remove the engine service panel.
3. Remove the spark plug boot by firmly pulling the boot directly away from the engine.

Spark Plug Boot

1. Clean the area around the spark plug.
2. Remove the spark plug with the included spark plug socket wrench.

NOTICE

NEVER apply any side load or move the spark plug laterally when removing the spark plug.

1. Inspect the spark plug. Replace if electrodes are pitted, burned, or the insulator is cracked. Only use a recommended replacement spark plug.
2. Measure the spark plug electrode gap with a wire-type feeler gauge. If necessary, correct the gap by carefully bending the side electrode.

Spark plug gap: 0.024 - 0.032 in. (0.60 - 0.80 mm)

Side Electrode 0.024 - 0.032 in. (0.60 - 0.80 mm) Insulator

1. Carefully install the spark plug finger tight, then tighten as additional 3/8 to 1/2 turn with the spark plug wrench.
2. Install the spark plug boot and engine service panel.

SPARK ARRESTOR SERVICE

Check and clean the spark arrestor after every 100 hours of use or six months. Failure to clean the spark arrestor will result in degraded engine performance.

1. Place the generator on a level surface and allow the muffler to cool before servicing the spark arrestor.
2. Remove the cover screws, muffler cover, and spark arrestor.

Spark Arrestor

1. Carefully remove the carbon deposits from the spark arrestor screen with a wire brush. The spark arrestor must be free of breaks and tears. Replace the spark arrestor if damaged.
2. Reinstall the spark arrestor and muffler cover.

STORAGE

Proper storage preparation is required for trouble-free operation and generator longevity.

NOTICE

Gasoline stored for as little as 30 days can deteriorate, causing gum, varnish, and corrosive buildup in fuel lines, fuel passages and the engine. This corrosive buildup restricts the flow of fuel, which can prevent the engine from starting after a prolonged storage period. The use of fuel stabilizer significantly increases the storage life of gasoline. Full-time use of fuel stabilizer is recommended. Follow the manufacturer's instructions for use.

STORAGE TIME RECOMMENDED PROCEDURE
Less than 1 month No	service required.
2 to 6 months	Fill with fresh gasoline and add gasoline stabilizer. Drain the carburetor float bowl.
6 months or longer	Drain the fuel tank and carburetor float bowl.

SHORT TERM STORAGE

• Allow the generator to cool a minimum of 30 minutes before storage.
• Replace all protective covers on the generator control panel.
• Wipe the generator with a moist cloth. Clean any debris from the air inlets on the front of the unit and muffler cooling vents.
• Store the generator in a well-ventilated, dry location away from sparks, open flames, pilot lights, heat, and other sources of ignition such as areas with a spark-producing electric motor or where power tools are operated.
• DO NOT store the generator or gasoline near furnaces, water heaters, or any other appliances that produce heat or have automatic ignitions.
• With the engine and exhaust system cool and all surfaces dry, cover the generator to keep out dust. DO NOT use a plastic sheet as a dust cover. Non-porous materials trap moisture and promote rust and corrosion.

LONG TERM STORAGE

Even properly stabilized fuel can leave residue and cause corrosion if left long term. If storing the generator for two to six months, drain the float bowl to prevent gum and varnish buildup in the carburetor.

DRAINING THE FLOAT BOWL

1. Remove the engine service panel.
2. Locate the drain hose extending from the bottom of the carburetor float bowl.

Float Bowl Drain Screw Drain Hose Suitable Fuel Container

1. Place the loose end of the hose outside the generator into an approved gasoline container to catch the drained fuel.
2. Loosen the float bowl drain screw and allow the fuel to drain. Tighten the float bowl drain screw.
3. Route the drain hose between the air cleaner housing and the engine service panel. Install the engine service panel.

DRAINING THE FUEL TANK

If storing the generator for longer than six months, drain the fuel tank to prevent fuel separation, deterioration, and deposits in the fuel system.

1. Unscrew the fuel tank cap. Remove the fuel screen filter.
2. Using a commercially available gasoline hand pump (not included), siphon the gasoline from the fuel tank into an approved gasoline container. DO NOT use an electric pump.
3. Reinstall the fuel screen filter and the fuel tank cap.
4. Start the generator and allow it to run until the generator engine stops. Remove the spark plug.
5. Put a teaspoon of engine oil into the cylinder and pull the recoil handle until resistance is felt. At this position the piston is coming up on its compression stroke and both valves are closed. Storing the engine

in this position will help prevent internal corrosion. Return the recoil handle gently.

1. Reinstall the spark plug. Leave the spark plug boot disconnected to prevent accidental starting. Install the engine service cover.

VALVE CLEARANCE

NOTICE

Checking and adjusting valve clearance must be done when the engine is cold.

1. Remove the rocker arm cover and carefully remove the gasket. If the gasket is torn or damaged, it must be replaced.
2. Remove the spark plug so the engine can be rotated more easily.
3. Rotate the engine to top dead center (TDC) by pulling the recoil handle slowly. Looking through the spark plug hole, the piston should be at the top (both valves are closed).
4. Both the rocker arms should be loose at TDC on the compression stroke. If they are not, rotate the engine 360°.
5. Insert a feeler gauge between the rocker arm and the valve stem to measure valve clearance.

Valve Stem Rocker Arm Pivot Adjusting Nut Rocker Arm Pivot

Intake Valve Exhaust Valve

Valve Clearance	0.0031 – 0.0047 in.(0.08 – 0.12 mm)	0.0051 – 0.0067 in.(0.13 – 0.17 mm)
Torque	8–12 N•m 8–12 N•m

1. If an adjustment is necessary, hold the rocker arm pivot and loosen the pivot adjusting nut.
2. Turn the rocker arm pivot to obtain the specified clearance. Hold the rocker arm pivot and re-tighten the pivot adjusting nut to the specified torque.

Torque: 106 inch-pound (12 N·m)

1. Perform this procedure for the other valve.
2. Install the gasket, rocker arm cover, and spark plug.

TROUBLESHOOTING

TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE CORRECTION
Engine will not start	Out of fuel. Refuel.
	Bad fuel, generator stored without treating or draining gasoline, or refueled with bad gasoline.	Drain the fuel tank. Refuel with fresh gasoline.
	Dirty air filter. Clean the air filter.
	Low engine oil level stopped generator. If low oil	LED illuminated, add engine oil.
	Spark plug wet with fuel (flooded engine).	Wait five minutes. Pull recoil handle rapidly several times. If the generator does not start, remove spark plug and dry.
	Spark plug faulty, fouled, or improperly gapped.	Gap or replace the spark plug. Reinstall.
	Fuel filter restricted, fuel system malfunction, fuel pump failure, ignition malfunction, valves stuck, etc.	Contact Cummins support toll-free at 1-800-CUMMINS
	Choke partially open or closed.	Manually set the choke. See Maintenance section.
Engine starts, then shuts down	Out of fuel. Refuel.
	Incorrect engine oil level. Check engine oil level.
	Dirty air filter. Clean the air filter.
	Contaminated fuel. Drain the fuel tank. Refuel with fresh gasoline.
	Defective low oil level switch.	Contact Cummins support toll-free at 1-800-CUMMINS
Engine lacks power	Air filter restricted. Clean or replace air filter.
	Bad fuel, generator stored without treating or draining gasoline, or refueled with bad gasoline.	Drain the fuel tank. Refuel with fresh gasoline.
	Fuel filter restricted, fuel system malfunction, fuel pump failure, ignition malfunction, valves stuck, etc.	Contact Cummins support toll-free at 1-800-CUMMINS
Engine runs rough or bogs when load applied	Dirty air filter. Clean the air filter.
	Generator overloaded. Unplug some devices.
	Faulty power tool or appliance.	Replace or repair tool or appliance. Stop and restart the engine.
	Fuel filter restricted, fuel system malfunction, fuel pump failure, ignition malfunction, valves stuck, etc.	Contact Cummins support toll-free at 1-800-CUMMINS
No power at AC receptacles	OUTPUT READY LED is OFF and OVERLOAD LED is ON.	Check AC load. Stop and restart engine.
		Check the air inlet. Stop and restart the engine.
	AC circuit breaker/s tripped. Check AC loads and reset circuit breaker/s.
	Faulty power tool or appliance.	Replace or repair tool or appliance. Stop and restart the engine.
	Faulty generator.	Contact Cummins support toll-free at 1-800-CUMMINS

EXPLODED VIEWS AND PARTS LISTS

ENGINE EXPLODED VIEW

Exploded view diagram of a mechanical assembly with labeled parts and exploded views

ENGINE PARTS LIST

NO. PART# DESCRIPTION
1 A066U	046 START PU	LLER KIT ASSEMBLY
2 A076L	914 AIR FILTER	KIT ASSEMBLY
2.1	A064D486 AIR	FILTER
3 A076L	942 CARBURET	TOR KIT ASSEMBLY
3.1	A064D693 CAR	BURETOR CONNECTION BLOCK
3.2	A064D652 CAR	BURETOR PAPER PAD
4 A076L	950 CYLINDEP	HEAD KIT ASSEMBLY
4.1	A064D658 CYL	NDER HEAD GASKET

NO. PART# DESCRIPTION
4.2	A064D690 INLET	ROCKER ARM ASSEMBLY
5	A076L963 CYLINDER	HEAD COVER KIT ASSEMBLY
5.1	A0640636 CYLINDER	HEAD COVER GASKET
6	A064D501 SPARK AR	RESTER
7	A064D659 SPARK PLUG
8	A076L970 IGNITER KIT	ASSEMBLY
9	A066U052 DIPSTICK

GENERATOR EXPLODED VIEW

Exploded view diagram of automotive engine components with numbered parts and a legend for part numbers.

GENERATOR PARTS LIST

NO. PART# DESCRIPTION
1 A076L976 LEFT FRAME KIT ASSEMBLY
2 A076L980 KNOB KIT ASSEMBLY
2.1 A064D576 SCREW M4X16
2.2 A064N056 KNOB
3 A076L984 FUEL SWITCH KIT ASSEMBLY
3.1 A064N064 CABLE
3.2 A076L998 FILTER
4 A076M006 INVERTER KIT ASSEMBLY
5 A076M017 PANEL REAR COVER KIT ASSEMBLY
5.1 A064N071 DC VOLTAGE REGULATOR
6 A064N068 DEPUTY WIRING HARNESS
7 A076M018 PANEL KIT ASSEMBLY
7.1 A064D510 ECO SWITCH
7.2 A064D515 LED
8 A076M020 RIGHT FRAME KIT ASSEMBLY

NO. PART# DESCRIPTION
8.1 A066	U035 RIGHT PANEL
8.2 A066	U036 OIL MAINTENANCE COVER
9 A066U	039 FUEL SLOT
10 A066	J040 FUEL CAP
11 A064	D837 FUEL TANK FILTER
12 A066	J042 RUBBER WASHER
13	A076L181	GASOLINE SENSOR ASSEMBLY
13.1 A064	4D834 GASOLINE SENSOR
14 A064	D671 OIL BOTTLE ASSEMBLY
15 A076	M022 MUFFLER PANEL KIT ASSEMBLY
16 A066	J010 SPARK PLUG SLEEVE
17 A066	J044 FUNNEL
18 A064	J009 SCREWDRIVER
19	A064N264 CIGARETTE LIGHTER CONNECTOR
20	A064N170 CARBON CANISTER (IF APPLICABLE)

graph TD
    A["DC Winding"] --> B["Bu 16AWG"]
    B --> C["Bu 16AWG"]
    C --> D["Regulated Rectifier"]
    D --> E["R 16 AWG BI 1 6AWG"]
    D --> F["R 20 AWG BI 2 0AWG"]
    D --> G["R 20 AWG BI 20AWG"]
    D --> H["R 20 AWG BI 22AWG"]
    H --> I["12V DC 8A"]
    I --> J["USB DC/CC 5V"]
    K["Alternator"] --> L["Control power winding"]
    L --> M["W 20AWG"]
    L --> N["W 20AWG"]
    L --> O["R 14AWG"]
    L --> P["R 14AWG"]
    L --> Q["R 14AWG"]
    L --> R["R 14AWG"]
    L --> S["R 14AWG"]
    T["Main winding"] --> U["Not used on this model"]
    U --> V["SM Fuel"]
    U --> W["Stepping Motor"]
    X["Engine"] --> Y["Connected to inverter module bracket"]
    Y --> Z["Ignition Coil"]
    Y --> AA["Spark plug"]
    Y --> AB["Ignition Coil"]
    Y --> AC["O Sensor"]
    Y --> AD["Gasoline sensor"]
    AE["Control Panel VN"] --> AF["Engine switch ON OFF"]
    AG["Paralleled Operation"] --> AH["ECO MODE RESET"]
    AH --> AI["AC/CA 120V 18A 5-20R"]
    AI --> AJ["R14AWG W 14AWG"]
    AK["LED"] --> AL["OUTPUT READY OVERLOAD"]

BI	Black	Br	Brown	Y/G	Yellow green
R	Red	R/W	Red/white	C	Orange
Bu	Blue	Gr	Gray
W	White	Bu/W	Blue white
Y	Yellow	Bi/W	Black / white

Inversor Onan P2500i

Generador inversor digital

Diagram showing two scenarios: one with a house and no prohibition symbol, the other with a car and no prohibition symbol.

Technical diagram of a camera module with labeled parts and rotation arrow indicating clockwise motion

Technical line drawing of a mechanical assembly with a tool interacting with a component (no text or symbols present)

Diagram showing two house-shaped structures with a car and a crossed-out bicycle, each marked with a prohibition symbol.

Line drawing of a portable air conditioner unit with hand operating controls and a right-hand arrow indicating action (no text or symbols)

Technical diagram of a camera body with labeled parts and a circular component with an arrow indicating rotation.

MANTENIMIENTO DEL FILTRO DE AIRE

ADVERTENCIA

Simple line drawing of a hand holding an object (no text or symbols)

AVISO

Technical line drawing of a mechanical assembly with a hand tool interacting with a component (no text or symbols present)

Technical line drawing of a portable electronic device with internal components and a base mount (no text or symbols)

DIMENSIONS DU CORDON D'EXTENSION....72

FONCTIONNEMENT PARALLÈLE....73

TRANSPORT 73

ENTRETIEN

CALENDRIER DE MAINTENANCE....74

PIÈCES DE RECHANGE D'ENTRETIEN....74

PANNEAU DE SERVICE MOTEUR....74

www.cummins.com/support/product-registration

Pour vos dossiers

Date d'achat:

Numéro de modèle:

Numéro de série:

Lieu d'achat:

Diagram showing two scenarios: one with a house and no prohibition symbol, the other with a car and no prohibition symbol.

- Disconnect the spark plug wire to prevent accidental starting.

Technical diagram of a refrigerator internal components with labeled parts and rotation arrow

Technical line drawing of a mechanical assembly with a close-up view showing a tool interacting with a component (no text or symbols present)

Line drawing of a hand operating a portable air conditioner unit with a hand adjusting the button (no text or symbols)

DIMENSIONS DU CORDON D'EXTENSION

Technical diagram of a refrigerator internal components with labeled parts and a circular component with rotation arrow

Technical line drawing of a mechanical component with a close-up view showing a tool interacting with it (no text or symbols present)

Line drawing of a portable electronic device with internal components and a base stand (no text or symbols)

Couple: 106 inch-pound (12 N·m)

Copyright © 2024 Cummins Inc. All rights reserved.

Cummins, 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.