BL4 - Leaf blower Baumr-AG - Free user manual and instructions
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| Product Type | Leaf Blower |
| Model | BL4 |
| Brand | Baumr-AG |
| Engine Type | 2-stroke petrol engine |
| Displacement | 26 cc |
| Fuel Type | Petrol mixed with 2-stroke oil (40:1 ratio) |
| Air Speed | Up to 180 mph (290 km/h) |
| Air Volume | 450 cfm (12.7 m³/min) |
| Weight | 4.5 kg (9.9 lbs) |
| Dimensions (L x W x H) | 85 x 25 x 30 cm (33.5 x 9.8 x 11.8 in) |
| Fuel Tank Capacity | 0.6 L (20.3 fl oz) |
| Starting System | Recoil starter |
| Noise Level | 95 dB(A) (at operator ear) |
| Vibration Level | 7.5 m/s² (uncertainty K=1.5 m/s²) |
| Ignition Type | Electronic (CDI) |
| Spark Plug Type | NGK BPMR7A or equivalent |
| Carburetor Type | Diaphragm |
| Intended Use | Residential leaf blowing and light debris clearing |
| Safety Features | Throttle lock, anti-vibration system, protective guard |
| Maintenance | Regular air filter cleaning, spark plug replacement, fuel system checks |
| Included Accessories | Blower tube, nozzle, fuel mixing bottle, tool kit |
Frequently Asked Questions - BL4 Baumr-AG
What fuel mixture does the Baumr-AG BL4 leaf blower require?
The BL4 uses a 2-stroke engine. Mix unleaded petrol with a high-quality 2-stroke oil at a ratio of 40:1 (40 parts fuel to 1 part oil). Use a fuel mixing container for accuracy.
How do I start the leaf blower?
1. Fill the fuel tank with the correct mixture. 2. Set the choke lever to the 'CLOSE' position. 3. Press the primer bulb 6-8 times. 4. Pull the starter grip firmly until the engine starts. 5. Then open the choke slowly.
What is the recommended maintenance schedule?
After each use: clean the air filter and exterior. Every 20 hours: replace spark plug, clean fuel filter, and check carburetor. At season end: drain fuel, run engine dry, and store in a dry place.
Why does the blower stop running after a few minutes?
Possible causes: clogged air filter, stale fuel, or faulty spark plug. Clean or replace the air filter, use fresh fuel mixture, and check the spark plug for deposits or gap issues.
Can I use the leaf blower for wet leaves?
It is designed for dry leaves and light debris. Wet leaves are heavier and may clog the blower tube. For wet leaves, consider using a rake or wait until they dry.
What safety gear should I wear?
Always wear safety goggles, ear protection, gloves, and sturdy footwear. Long pants and a long-sleeved shirt are recommended to protect from flying debris.
How do I clean the air filter?
Remove the air filter cover and take out the foam element. Wash it in warm soapy water, rinse, and squeeze dry (do not twist). Re-oil with 2-stroke oil and reinstall.
What is the correct spark plug gap?
The correct gap is 0.6 to 0.7 mm (0.024 to 0.028 inches). Use a feeler gauge to measure and adjust if necessary.
Where can I get replacement parts?
Replacement parts such as air filters, spark plugs, and fuel filters are available online or from authorised Baumr-AG dealers. Use genuine parts for best performance.
How should I store the leaf blower for long periods?
Drain the fuel tank and run the engine until it stalls. Clean the blower thoroughly. Remove the spark plug and add a teaspoon of oil into the cylinder, then pull the starter slowly. Store in a dry, sheltered location.
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