Stihl BR 600 Parts Manual

The Stihl BR 600 is a professional-grade backpack blower designed for demanding commercial and residential applications. This parts manual provides detailed diagrams, part numbers, and ordering information for the complete assembly, including the engine, fan housing, throttle controls, harness system, fuel system, and muffler. Below are key sections for identification, engine components, blower assembly, controls, fuel system, maintenance, and ordering.

Product Identification & Specifications

Key identifiers: Model BR 600, Engine type, Serial number location, Power output.

Engine Assembly & Components

Complete breakdown of engine parts: cylinder, piston, crankshaft, ignition system.

1. Cylinder & Piston Assembly: Includes cylinder, piston, rings, wrist pin, circlips.
2. Crankshaft & Bearings: Crankshaft, main bearings, seals, connecting rod.
3. Ignition System: Flywheel, ignition coil, spark plug (Bosch WSR6F or equivalent).
4. Rewind Starter: Starter pulley, spring, rope, handle.
5. Engine Housing: Crankcase halves, screws, gaskets.

WARNING! Engine components are precision parts; handle with care to avoid damage. Use proper tools for disassembly.

Blower Housing & Fan Assembly

Components for air intake, fan, and discharge tube.

1. Fan Housing: Main housing, intake cover, screws.
2. Impeller (Fan): 8-blade plastic fan, fan nut, washer.
3. Discharge Tube: Tube sections, locking collar, nozzle.
4. Air Filter: Foam filter element, filter cover, retaining clip.
5. Anti-Vibration Mounts: Rubber mounts between engine and housing.

CAUTION! Ensure fan is balanced and securely fastened. Inspect for cracks before operation.

Throttle Control & Harness System

• Throttle Lever: Lever, throttle cable, return spring.
• Throttle Lock: Lock button, interlock mechanism.
• Master Control Lever: Choke/stop control, linkage.
• Harness: Backpack frame, shoulder straps, hip belt, quick-release buckles.
• Control Cables: Throttle cable routing, cable adjusters.

Fuel System & Carburetor

Fuel tank, lines, filter, carburetor, and primer.

Fuel Tank: Polyethylene tank, cap, vent. Fuel Lines: Supply and return lines, clamps. Fuel Filter: In-tank filter. Carburetor: Zama C1Q-S series, diaphragm, gaskets, adjustment screws (H, L, LA). Primer Bulb: Bulb, check valves.

Muffler & Exhaust System

Muffler assembly, spark arrestor, gaskets.

1. Turn off engine and allow to cool before servicing muffler.
2. Remove muffler cover screws (4x).
3. Replace spark arrestor screen if clogged.
4. Use new gasket when reinstalling.

Tip: Regularly clean spark arrestor to maintain performance and prevent fire hazard.

Maintenance & Replacement Intervals

Recommended service intervals for common wear parts.

1. Air Filter: Clean every 10 hours; replace if damaged.
2. Spark Plug: Check/replace every 100 hours.
3. Fuel Filter: Replace every year or 100 hours.
4. Impeller: Inspect for damage every 50 hours.
5. Anti-Vibration Mounts: Check every 200 hours.
6. Carburetor Diaphragm: Replace every 2 years or 300 hours.
7. Harness Straps: Inspect for wear before each use.

WARNING! Use only genuine STIHL parts. Improper parts can cause failure or unsafe operation.

Exploded Views & Part Numbers

Reference diagrams with corresponding part numbers for ordering.

Torque Specifications

Critical fastener torque values.

Safety Information

Operate with proper PPE: eye protection, hearing protection, gloves, sturdy boots. Keep bystanders away. Do not operate in flammable environments. Read original operator's manual before use.

CAUTION! Fuel is flammable. Refuel in well-ventilated area with engine off and cool.

Ordering Parts & Support

Note: Part numbers are examples. Confirm with your serial number.

Service: Contact an authorized STIHL dealer. Find dealers at www.stihlusa.com or call 1-800-467-8445.