Scheppach SG3400i Inverter Generator User Manual

1. Introduction and Safety Information

This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your Scheppach SG3400i Inverter Generator. Please read this manual thoroughly before operating the generator to ensure proper use and to prevent injury or damage.

1.1 General Safety Warnings

• Always operate the generator in a well-ventilated area to avoid carbon monoxide poisoning. Never operate indoors.
• Keep children and pets away from the generator during operation.
• Do not refuel the generator while it is running or hot. Allow it to cool down before adding fuel.
• Ensure all electrical connections are secure and properly grounded.
• Wear appropriate personal protective equipment (PPE) when handling fuel or performing maintenance.
• Store fuel in approved containers in a safe, well-ventilated area away from ignition sources.

2. Product Overview

The Scheppach SG3400i is a powerful and portable inverter generator designed to provide reliable power for various applications. It features a robust 4-stroke gasoline engine, electric start with remote control, and an eco-mode for fuel efficiency.

2.1 Key Features and Components

This image shows the Scheppach SG3400i Inverter Generator in blue and black, featuring its control panel with various outlets and switches, along with its remote start key fob. The generator is equipped with wheels and a handle for portability.

• Engine: Air-cooled 4-stroke gasoline engine with 5.1 HP / 3.8 kW.
• Power Output: 3400 W maximum, 3000 W rated output.
• Outlets: Two 230V AC sockets and one 12V DC socket.
• Starting System: Electric start via remote control or pull start.
• Eco-Mode: Built-in eco-mode for fuel saving and reduced emissions.
• Portability: Foldable handle and wheel assembly for easy transport.
• Noise Level: Low noise level of 61 dB at 7 meters.
• Safety Features: Overload protection and oil warning indicator.
• Display: Digital display for monitoring operation.

2.2 Applications

The SG3400i is versatile and suitable for various power needs:

This image illustrates common applications for the generator, including powering equipment for camping or tents, garden houses, heating systems, and refrigerators.

This image shows additional applications, such as providing power for events, construction sites, and charging portable electronic devices like laptops and mobile phones.

Its robust design and portability make it ideal for:

• Camping and outdoor activities
• Powering tools on construction sites
• Backup power for homes or garden sheds
• Events requiring temporary power supply
• Charging sensitive electronics due to inverter technology

3. Setup and Initial Preparation

Before first use, proper setup is crucial for safe and effective operation.

3.1 Unpacking and Assembly

• Carefully remove the generator and all accessories from the packaging.
• Inspect for any shipping damage. Contact your dealer immediately if damage is found.
• Assemble the foldable handle and wheel assembly as per the included instructions.

This image demonstrates the generator's easy maneuverability due to its movable transport handle, shown in an extended position.


This image shows a person easily pulling the Scheppach SG3400i generator, highlighting its portability and the convenience of its integrated wheels and handle.

3.2 Adding Engine Oil

The generator is shipped without engine oil. It is critical to add the correct type and amount of oil before starting.

• Place the generator on a level surface.
• Remove the oil filler cap/dipstick.
• Add recommended 4-stroke engine oil (e.g., SAE 10W-30) up to the full mark on the dipstick. Do not overfill.
• Securely replace the oil filler cap.


This image highlights key features including the oil warning indicator, which signals low oil levels, emphasizing the importance of proper oil maintenance.

3.3 Adding Fuel

Use fresh, unleaded gasoline with an octane rating of 90 or higher.

• Ensure the generator is turned off and cool.
• Open the fuel tank cap.
• Carefully fill the fuel tank, avoiding overfilling. Leave space for fuel expansion.
• Securely close the fuel tank cap.
• Wipe up any spilled fuel immediately.

4. Operation

4.1 Starting the Generator

The SG3400i offers both electric start (with remote control) and manual pull start.

Electric Start (with Remote Control)

• Ensure the generator is on a level surface and away from flammable materials.
• Turn the engine switch to the "ON" position.
• Press the "START" button on the remote control. The generator should start.
• If it doesn't start, wait a few seconds and try again.

This image highlights the 12V connection port and the electric start feature, including the remote control for convenient starting.

Manual Pull Start

• Ensure the generator is on a level surface.
• Turn the engine switch to the "ON" position.
• Pull the recoil starter handle slowly until resistance is felt, then pull quickly and firmly.
• Repeat until the engine starts.

4.2 Connecting Electrical Devices

• Once the generator is running stably, you can connect your electrical devices to the 230V AC or 12V DC outlets.
• Ensure the total wattage of connected devices does not exceed the generator's rated output (3000W).
• The inverter technology provides clean power suitable for sensitive electronics.

This image highlights the two 230V sockets available on the generator's control panel for connecting electrical devices.

4.3 Eco-Mode Operation

• The Eco-Mode switch allows the engine speed to automatically adjust to the connected load.
• Engage Eco-Mode for lighter loads to save fuel and reduce noise.
• Disengage Eco-Mode for heavy loads or when maximum power is required.


This image shows the Eco Mode switch, which helps save fuel and reduce emissions by adjusting engine speed based on load.


This image emphasizes the generator's low noise level of 61 dB, which is further optimized when operating in Eco Mode.

4.4 Shutting Down the Generator

• Disconnect all electrical devices.
• Turn the engine switch to the "OFF" position.
• Allow the generator to cool down completely before storing.

5. Maintenance

Regular maintenance ensures the longevity and optimal performance of your generator.

5.1 Maintenance Schedule

5.2 Storage

• For long-term storage, drain the fuel tank and carburetor.
• Change the engine oil.
• Clean the exterior of the generator.
• Store in a clean, dry, and well-ventilated area, away from direct sunlight and extreme temperatures.

6. Troubleshooting

This section provides solutions to common operational issues. For problems not listed here, contact qualified service personnel.

This image shows the overload protection indicator and the digital display, which can help diagnose issues like an overload condition.

7. Technical Specifications

This image provides a visual representation of the generator's dimensions, showing its height, width, and length.

8. Warranty and Support

Scheppach products are manufactured with high-quality materials and undergo strict quality control. For information regarding warranty terms and conditions, please refer to the warranty card included with your product or visit the official Scheppach website.

For technical support, spare parts, or service inquiries, please contact your authorized Scheppach dealer or the Scheppach customer service department. Always provide the model number (SG3400i) and serial number of your generator when seeking assistance.

You can find more information and contact details on the official Scheppach website: www.scheppach.com