Stihl 600 Magnum Backpack Blower Manual

The Stihl 600 Magnum is a high-performance professional-grade backpack blower designed for demanding commercial and residential clearing applications. It features a powerful 2-stroke engine with electronic ignition, a comfortable ergonomic harness system, variable speed throttle with cruise control, anti-vibration system, easy-start technology, and a large-capacity fuel tank. Below are key sections for safety, features, assembly, operation, maintenance, troubleshooting, and specifications.

Features at a Glance

Key components: High-output 2-stroke engine, Backpack harness, Throttle lever with lock, Cruise control button, Air filter cover, Muffler, Fuel tank, Primer bulb, Choke lever, Stop switch.

Safety Information

Read all instructions before use. Wear appropriate PPE.

1. Personal Protective Equipment (PPE): Always wear safety glasses, hearing protection, long pants, closed-toe shoes, and gloves.
2. Operating Area: Keep bystanders, pets, and children at least 50 feet away. Be aware of dust and debris direction.
3. Fuel Safety: Refuel in a well-ventilated area with engine off and cool. Use approved fuel container. Wipe spills.
4. Hot Surfaces: Avoid contact with muffler and cylinder during and immediately after operation.

WARNING! Risk of fire, burn, and injury. Never operate in enclosed spaces. Carbon monoxide hazard. Do not modify equipment.

Assembly & Preparation

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

1. Attach Harness: Connect backpack frame to blower unit using provided bolts. Adjust straps for fit.
2. Install Blower Tube: Slide the tube onto the blower housing and secure with locking collar.
3. Fuel Mix: Use only 50:1 mixture of unleaded gasoline (min 89 octane) and STIHL HP Ultra 2-cycle oil. Shake well.
4. Initial Fill: Fill fuel tank with proper mix. Press primer bulb 5-10 times until fuel is visible.

CAUTION! Ensure all fasteners are tight before operation. Do not force components during assembly.

Specifications

• Model: STIHL 600 Magnum
• Engine Displacement: [e.g., 64.8 cc] (Refer to actual spec)
• Power Output: High-performance commercial grade
• Air Volume (Max): [e.g., 912 CFM] (Refer to actual spec)
• Air Speed (Max): [e.g., 206 MPH] (Refer to actual spec)
• Sound Power Level: [e.g., 112 dB(A)] (Refer to actual spec)
• Dry Weight: [e.g., 24.7 lbs] (Refer to actual spec)
• Fuel Tank Volume: [e.g., 74.4 fl. oz.] (Refer to actual spec)
• Warranty: Limited commercial warranty (see manual)

Controls and Components

Familiarize yourself with all controls before starting.

Main Controls: STOP switch (OFF/RUN), Choke lever (Cold start position), Throttle trigger, Throttle lock/cruise control button, Primer bulb, Decompression valve button (if equipped).

Components: Backpack frame, Shoulder straps, Hip belt, Chest strap, Blower housing, Air filter cover, Muffler/spark arrestor, Fuel cap, Blower tube, Nozzle.

Adjustments: Harness straps for comfort and balance. Tube length for task.

Starting & Operating

Follow correct starting procedure to avoid flooding.

1. Cold Start: Place unit on flat ground. Set STOP switch to RUN. Set choke lever to FULL CHOKE. Press primer bulb 5-10 times. Pull starter rope sharply until engine fires (usually 1-3 pulls). Move choke lever to HALF CHOKE. Pull starter rope again until engine starts. Let run for 10 seconds, then move choke to RUN.
2. Warm Start: Set STOP switch to RUN. Choke lever in RUN position. Pull starter rope.
3. Operating: Put on harness. Adjust for comfort. Use throttle trigger for variable speed. Engage cruise control for extended use by pressing lock button while holding throttle.
4. Stopping: Release throttle. Press and hold STOP switch to OFF. Allow engine to cool before refueling or storage.

Tip: Avoid running at full throttle for the first 10 minutes of break-in.

Maintenance Schedule

Regular maintenance ensures performance and longevity.

Fuel & Lubrication

Use only high-quality, fresh fuel and specified oil.

1. Fuel Mix Ratio: 50:1 (Gasoline to STIHL HP Ultra 2-cycle oil).
2. Gasoline: Unleaded, minimum 89 octane (R+M)/2. Do not use fuel older than 60 days.
3. Mixing: Use approved container. Add oil first, then gasoline. Close cap and shake thoroughly.
4. Gearbox Lubrication: (If applicable) Use STIHL gearbox grease. Service interval per maintenance schedule.

WARNING! Never use automotive oil, diesel fuel, or E85 ethanol blend. Do not mix fuel near open flame.

Storage

Proper storage prevents fuel system issues.

1. Short-term (under 30 days): Run engine dry of fuel or add fuel stabilizer.
2. Long-term (over 30 days): Drain fuel tank completely. Run engine until it stops to clear carburetor. Remove spark plug, add 1 tsp of engine oil into cylinder, pull starter rope slowly 2-3 times, reinstall plug. Clean entire unit. Store in dry, cool place, covered.

CAUTION! Storing with untreated fuel can cause gumming in carburetor, leading to starting problems.

Warranty Information

STIHL Limited Warranty. Proof of purchase required. Warranty covers defects in material and workmanship for specified period from date of retail purchase. Commercial use may have different terms. Damage from misuse, neglect, improper fuel, or unauthorized modification is not covered. For warranty service, contact an authorized STIHL servicing dealer. For support, visit www.stihlusa.com or contact 1-800-467-8445.

Troubleshooting

Note: For carburetor adjustment or major repairs, see an authorized STIHL dealer.

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