stihl backpack blower br 600 manual

The STIHL BR 600 is a professional-grade backpack blower featuring a powerful 4.2 HP engine, air-cooled two-stroke technology, adjustable padded harness, throttle controls, anti-vibration system, variable speed control, and a high-velocity air nozzle. It is designed for demanding landscaping, commercial, and municipal cleanup tasks. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Assembly & Preparation 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Fuel & Lubrication 7. Operating Procedures 8. Maintenance Schedule 10. Care & Storage 11. Regulatory Information 12. Troubleshooting

Features at a Glance

Key components: 4.2 HP STIHL engine, Backpack harness with padded straps, Throttle trigger and lock, Air velocity control dial, Anti-vibration system, Spark arrestor muffler, Transparent fuel tank.

Feature	Description
Engine Power	4.2 HP two-stroke, air-cooled engine
Air Volume	High CFM output for heavy debris
Harness System	Padded, adjustable shoulder and waist straps
Throttle Control	Trigger with lock for continuous operation
Anti-Vibration	Reduces operator fatigue during extended use
Fuel Tank	Transparent for easy fuel level monitoring
Muffler	Spark arrestor for safe operation in dry conditions
Air Nozzle	High-velocity, adjustable direction
Choke Control	For easy cold starting
Decompression Valve	Reduces pulling force during starting

Assembly & Preparation

Unpack and inspect all parts. Assemble on a clean, flat surface.

Attach harness: Connect harness brackets to blower unit, adjust straps for fit.
Install air nozzle: Secure nozzle to blower tube with provided clamp.
Fuel mixture: Prepare 50:1 gasoline to STIHL HP Ultra oil mixture.
Fill fuel tank: Use fuel can with spout; avoid spills.

WARNING! Always wear eye and hearing protection. Ensure all fasteners are tight before operation.

First-Time Operation

Perform pre-start checks and start engine following proper procedure.

Check fuel level: Ensure adequate 50:1 mixed fuel.
Set controls: Move master control lever to cold start position (choke on).
Prime fuel: Press primer bulb 5-7 times until fuel is visible.
Start engine: Place on ground, hold handle, pull starter cord briskly.
Warm up: Allow engine to run at idle for 1-2 minutes before applying throttle.

CAUTION! Never operate indoors or in poorly ventilated areas due to carbon monoxide risk.

Specifications

Engine Type: STIHL 2-stroke, single cylinder.
Displacement: 64.8 cc.
Power Output: 4.2 HP.
Fuel Capacity: 1.9 liters (transparent tank).
Sound Power Level: Complies with applicable noise regulations.
Weight (dry): Approximately 10.4 kg (22.9 lbs).
Air Speed: Adjustable via throttle control.
Vibration Reduction: Integrated anti-vibration system.
Warranty: Refer to STIHL warranty terms.

Controls and Settings

Master Control Lever: Combines stop switch, choke, and run positions. Throttle Trigger: Variable speed control with lock for continuous operation. Decompression Valve: Press to ease starting. Air Volume Dial: Adjusts airflow output.

Harness Adjustments: Shoulder straps, waist belt, and chest strap for operator comfort and stability.

Starting Procedure: Choke on (cold), half choke (warm), run position. Operation: Use throttle trigger for desired airspeed. Shutdown: Move master control to STOP.

Fuel & Lubrication

Use 89 octane or higher unleaded gasoline mixed with STIHL HP Ultra 2-cycle oil at 50:1 ratio.

Mix fuel in approved container: Add oil first, then gasoline.
Shake gently to ensure proper mixture.
Fill tank to 80% capacity to allow for expansion.
Use fuel within 30 days; avoid old or stale fuel.

Tip: Never use straight gasoline or automotive motor oil. Always use STIHL recommended oil.

Operating Procedures

Designed for blowing leaves, grass clippings, and light debris.

Don harness: Adjust for snug, comfortable fit.
Start engine: Follow cold/warm start procedure.
Adjust air direction: Point nozzle toward debris.
Control speed: Use throttle trigger for appropriate air volume.
Move systematically: Work in sections, blowing debris into piles.
Shut down: Move master control to STOP after releasing throttle.

WARNING! Keep bystanders and pets at a safe distance. Do not point nozzle at people, animals, or loose objects.

Maintenance Schedule

Air Filter: Clean every 10 hours of operation; replace if damaged. Spark Plug: Check and clean every 50 hours; replace annually. Fuel Filter: Replace every 100 hours or as needed. Muffler & Spark Arrestor: Clean monthly during heavy use.

Care & Storage

Clean exterior with damp cloth after each use. Store in dry, cool place. For long-term storage, drain fuel tank and run engine until it stops.

CAUTION! Never store with fuel in tank for more than 30 days. Use fuel stabilizer if needed.

Regulatory Information

EPA and CARB compliant for emissions. Meets ANSI B175.2 safety standards. Contains components protected by patents and trademarks. Copyright © STIHL Incorporated. For genuine parts and service, visit www.stihlusa.com or contact authorized STIHL dealers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine fails to start	No fuel, clogged filter, spark plug	Check fuel level; clean/replace air filter; inspect spark plug.
Loss of power	Dirty air filter, old fuel	Clean air filter; drain and replace with fresh fuel mixture.
Excessive vibration	Loose components, worn mounts	Tighten all fasteners; inspect anti-vibration mounts.
Engine runs unevenly	Carburetor adjustment, water in fuel	Have dealer adjust carburetor; drain fuel system.
Harness discomfort	Improper adjustment	Re-adjust shoulder, waist, and chest straps for even weight distribution.

Service: For repairs, contact authorized STIHL service dealer. Do not attempt major engine repairs.

Support: 1-800-467-8445; www.stihlusa.com