Stihl BR 320 BR 400 Instruction Manual

Pages 30

Year 1999

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of 30

Stihl BR 320 BR 400 Specification

The Stihl BR 320 and BR 400 are robust backpack blowers designed for heavy-duty outdoor cleaning tasks. Engineered for efficiency, both models offer a powerful air displacement capacity, making them ideal for clearing leaves, grass clippings, and debris from large areas. The BR 320 is equipped with a high-performance, 2-stroke engine that delivers a substantial airflow velocity, ensuring effective clearing of surfaces. It features a lightweight yet durable design that prioritizes user comfort, incorporating adjustable padded shoulder straps and an ergonomic handle for reduced operator fatigue during prolonged use.

The BR 400 builds on the capabilities of the BR 320, offering enhanced power output and increased airspeed for more demanding applications. It retains the ergonomic features of its counterpart, ensuring ease of use and comfort. Both models feature a large fuel tank capacity, minimizing the need for frequent refueling and allowing for extended operational periods. The inclusion of an efficient anti-vibration system further enhances user comfort by reducing vibrations transmitted to the operator.

These blowers are designed with a focus on durability, equipped with high-quality materials that withstand rigorous use and challenging environmental conditions. They also incorporate easy-to-access controls for intuitive operation and maintenance. The Stihl BR 320 and BR 400 are ideal for professional landscapers and homeowners seeking reliable and efficient tools for outdoor maintenance. Both models provide a balance of power, comfort, and durability, ensuring optimal performance across a range of outdoor cleaning tasks.

Stihl BR 320 BR 400 F.A.Q.

How do I start the Stihl BR 320 blower?

To start the Stihl BR 320 blower, ensure the stop switch is in the "RUN" position, set the choke to the "COLD START" position, and press the primer bulb several times. Then, pull the starter handle until the engine fires. Once it fires, move the choke to the "RUN" position and pull the starter again to start the engine.

What fuel mixture is recommended for the Stihl BR 400?

The Stihl BR 400 requires a fuel mixture of 50:1, which is 50 parts gasoline to 1 part two-stroke engine oil. Use high-quality 89 octane unleaded gasoline and Stihl two-stroke engine oil for optimal performance.

Why is my Stihl BR 320 not starting?

If your Stihl BR 320 is not starting, check the fuel level and ensure you are using the correct fuel mixture. Inspect the spark plug for fouling or damage, and clean or replace it if necessary. Additionally, check the air filter for dirt and clean or replace it if needed.

How can I clean the air filter on my Stihl BR 400?

To clean the air filter on your Stihl BR 400, remove the air filter cover and take out the filter. Wash the filter in warm, soapy water, rinse it thoroughly, and let it dry completely. If the filter is very dirty or damaged, replace it with a new one.

What should I do if my Stihl BR 320 blower is vibrating excessively?

Excessive vibration in the Stihl BR 320 blower may be caused by loose parts or debris in the fan housing. Check and tighten any loose screws or bolts. Inspect the fan for debris or damage and clean or replace it if necessary.

How often should I perform maintenance on the Stihl BR 400?

Regular maintenance on the Stihl BR 400 should be performed after every 10 hours of use. This includes checking the air filter, cleaning the spark plug, inspecting the blower tubes for clogs, and checking fuel lines for any leaks or cracks.

What is the correct procedure for storing my Stihl BR 320 blower?

When storing your Stihl BR 320 blower, drain the fuel tank and run the engine until it stops. Clean the blower thoroughly, including the air filter and cooling fins. Store it in a dry, cool place, away from direct sunlight and moisture.

Why is my Stihl BR 400 blower losing power?

Loss of power in the Stihl BR 400 blower can be due to a clogged air filter, dirty spark plug, or incorrect fuel mixture. Clean or replace the air filter and spark plug, and ensure that you are using the correct 50:1 fuel mixture.

How do I adjust the carburetor on my Stihl BR 320?

To adjust the carburetor on your Stihl BR 320, locate the H (high speed) and L (low speed) adjustment screws. Turn each screw clockwise until it is lightly seated, then turn them counterclockwise one full turn. Fine-tune the adjustment by running the engine and adjusting the screws to achieve smooth operation.

What are common signs that my Stihl BR 400 needs servicing?

Common signs that your Stihl BR 400 needs servicing include difficulty starting, reduced power, unusual noises, excessive vibration, and increased fuel consumption. Regularly inspect and maintain your blower to address these issues promptly.