SG390 - Generator SRS - Free user manual and instructions
Find the device manual for free SG390 SRS in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | Portable Generator |
| Brand | SRS |
| Model | SG390 |
| Dimensions (L x W x H) | 600 x 450 x 450 mm |
| Weight | 45 kg |
| Fuel Type | Gasoline |
| Rated Power | 3000 W |
| Peak Power | 3500 W |
| Starting System | Recoil Start |
| Engine Type | 4-Stroke, OHV |
| Displacement | 200 cc |
| Oil Capacity | 0.6 L |
| Fuel Tank Capacity | 15 L |
| Runtime at 50% Load | 10 hours |
| Output Voltage | 120 V / 240 V |
| Frequency | 60 Hz |
| Outlets | 2x 120V AC, 1x 12V DC |
| Noise Level | 68 dB(A) |
| Spark Plug Gap | 0.7 mm |
| Warranty | 2 years |
| Functions | AC power, DC charging, overload protection, low oil shutdown |
| Maintenance | Regular oil change, air filter cleaning |
| Safety | Automatic voltage regulator, circuit breaker |
| Spare Parts Available | Air filter, spark plug, oil filter |
Frequently Asked Questions - SG390 SRS
How do I start the generator?
Make sure the generator is on a flat surface and has fuel and oil. Turn the fuel valve to ON, set the choke to CLOSED, and pull the recoil starter. Once it starts, gradually open the choke.
What type of oil should I use?
Use SAE 10W-30 for temperatures above 32°F (0°C) and SAE 5W-30 for colder conditions. Always check the oil level before starting.
How often should I change the oil?
Change the oil after the first 20 hours of operation, then every 50-100 hours or at least once per season. Use fresh oil of the recommended grade.
Can I run the generator indoors?
Never run a generator indoors, even in garages or basements. Carbon monoxide fumes are deadly. Always operate in a well-ventilated outdoor area.
How do I store the generator?
Run the generator dry of fuel or add a fuel stabilizer. Change the oil, clean the air filter, and store in a dry place. Disconnect the battery if equipped.
What is the break-in period?
For the first 20 hours, avoid heavy loads (below 50% rated power). This helps seat the piston rings and ensures long engine life.
Why does the generator shut off after a few seconds?
This is often due to low oil triggering the automatic shutdown. Check oil level and fill if needed. Also ensure the generator is not overloaded or the fuel valve is open.
How do I clean the air filter?
Remove the air filter cover and take out the foam element. Wash it with soapy water, rinse, and dry. Reinstall after applying a little clean oil. Do not use gasoline.
What is the recommended spark plug gap?
The correct gap is 0.7 mm. Use a feeler gauge to check and adjust. Replace the spark plug annually or if the electrode is worn.
How do I connect the generator to my house?
Use a transfer switch installed by a licensed electrician. Never plug the generator directly into a wall outlet (backfeeding) as it poses an electrocution risk.
User questions about SG390 SRS
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Generator in PDF format for free! Find your manual SG390 - SRS and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. SG390 by SRS.