how to break in a generator

Steps to break in your new generator

Read the operator’s manual carefully

The manual (online or physical) should recommend your generator type and oil quantity. Once you’re familiar with these details, position the generator on a level surface in a well-ventilated area. This not only ensures the generator operates smoothly but also keeps exhaust fumes from accumulating in enclosed spaces

Equipment required for generator lubrication

Following the instructions in the operator’s manual, you will require:

• Fuel – Most generators will use diesel, gasoline, propane, or a combination of gas or propane. Use clean, approved fuel cans.
• Oil – What kind of oil does the generator use? 
• Funnel – This makes it easier to pour oil into the reservoir.

Lubricate the spark plug chamber

The operator’s manual should have an engine diagram showing the spark plugs’ location. The spark plug should be carefully unscrewed and removed. To the chamber, add a few drops of oil conditioner. Pull the recoil starter slowly 8-10 times to lubricate the oil throughout the chamber. 

Add oil and fuel to the respective reservoirs

The operator’s manual lists how much oil the engine can handle. Fill the tank to the recommended level using a funnel. As the oil flows to all required areas, wait moments before checking the oil dipstick (on most generators), then top up to the desired amount.

Fill the fuel tank with a clean, authorized fuel can. Do not use an outdated container containing dirt or other contaminants that could harm the engine.

Start the generator

Read the instructions for starting the generator, as the steps are different for the electric start and recoil starter buttons. However, you will typically find a switch that enables you to adjust the engine to the “on” or “off” position. This setting may include a “choke” option or a separate switch, depending on the generator model.

A recoil starter may need several pulls, and patience is required. After the generator starts, Follow the operator’s manual directions because you might need to deal with the choke option.

Run the generator

The generator should run initially for the shortest amount of time, according to the manufacturer’s guidelines. To do this, connect a load to the generator, such as a power tool or appliance that utilizes about half of the generator’s rated capacity. It’s important to keep an eye on the generator’s performance during this process, making any necessary adjustments.

After an hour, please turn off the generator, drain the tank’s remaining oil, and refill it. Draining the oil removes any remaining metal debris.

run it at full load

Gradually increase the load until the generator is operating at its maximum capacity. Keep it running at this load for several more hours to further seat the piston rings and to spot any potential issues early on. As with the previous step, continuous monitoring of the generator’s performance is crucial.

However, there are different opinions on this step. Some information states that a new generator will run at 75% of its wattage output, while others say it should run until it runs out of fuel. By all means, do not break the generator at peak load.

cool down and then checking the oil level

After the generator has been run at full load, let it cool down completely. This is vital because checking the oil level while the generator is hot can lead to inaccurate readings. Once the generator is cool, check the oil level. If it’s low, refill it to the recommended level.