Timber Bear Chainsaw Manual

The Timber Bear Chainsaw is a powerful and reliable gasoline-powered chainsaw designed for professional and heavy-duty home use. It features a high-performance engine, automatic oiling system, safety chain brake, anti-vibration handles, and easy-start technology. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: High-torque 2-stroke engine, 18-inch guide bar, automatic chain oiler, safety chain brake, decompression valve, anti-vibration system, and ergonomic handles.

Safety Information

Read all instructions before use. Always wear protective gear.

1. Personal Protective Equipment (PPE): Wear safety glasses, hearing protection, gloves, chainsaw chaps, and steel-toed boots.
2. Work Area Safety: Clear area of bystanders, especially children. Ensure secure footing.
3. Kickback Prevention: Hold saw firmly with both hands. Do not cut with tip of bar.
4. Fuel Safety: Refuel in well-ventilated area with engine off and cool. Use fresh fuel mix.

WARNING! Chainsaws are dangerous. Failure to follow safety instructions can result in serious injury or death. Never operate when tired or under the influence.

Assembly & Preparation

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

1. Attach Guide Bar & Chain: Place bar on mounting studs. Loop chain around sprocket and bar with cutting teeth facing forward. Adjust tension.
2. Fill Fuel: Mix high-quality 2-stroke oil with unleaded gasoline (50:1 ratio). Fill fuel tank.
3. Fill Chain Oil: Use bar and chain oil. Fill oil tank.
4. Check Controls: Ensure throttle trigger, throttle lockout, and chain brake function properly.

CAUTION! Ensure chain is properly tensioned—snug against bar but able to be pulled by hand.

Specifications

• Model: Timber Bear TB-55
• Engine Type: Air-cooled, 2-stroke, single cylinder
• Displacement: 55 cc
• Power Output: 3.2 HP
• Maximum Power Speed: 9,500 RPM
• Idle Speed: 2,800 RPM
• Fuel/Oil Ratio: 50:1 (unleaded gasoline to 2-stroke oil)
• Ignition System: Electronic (CDI)
• Starter: Recoil with decompression valve
• Recommended Bar Lengths: 16" to 20"
• Sound Power Level: 112 dB(A)
• Vibration Level (front/rear handle): 4.2/2.8 m/s²

Controls and Components

Main Controls: Front Handle with chain brake, Rear Handle with throttle trigger, Throttle Lockout, Choke/Stop Control, Decompression Valve, Master Control Lever.

Components: Muffler, Spark Plug, Air Filter Cover, Fuel Cap, Oil Cap, Chain Tensioner, Side Cover, Chain Catcher.

Operation: Set Master Control to Cold Start (choke) for cold engine. Set to Run for warm start or operation. Set to Stop to shut off engine. Engage chain brake by pushing front handle forward. Disengage by pulling back.

Starting & Operating

Starting Procedure (Cold Engine):

1. Place saw on flat ground. Engage chain brake.
2. Set Master Control to Cold Start (choke) position.
3. Press decompression valve (if equipped).
4. Pull starter rope sharply until engine 'pops'.
5. Set Master Control to Run position.
6. Pull starter rope again until engine starts.
7. Disengage chain brake. Allow 30-second warm-up.

Cutting Techniques: Use full throttle when cutting. Let chain do the work. Plan escape path. Beware of pinch, kickback, and pull-in.

Tip: Always shut off engine before setting saw down or adjusting.

Chain Maintenance

Proper chain care ensures performance and safety.

1. Chain Tension: Check frequently. Adjust when chain sags from bar. Loosen side cover nuts, turn tensioning screw, tighten nuts.
2. Sharpening: Use round file and guide. Maintain 30° cutting angle. File all cutters evenly.
3. Depth Gauges: File down to maintain proper height (0.025 in / 0.65 mm below cutter).
4. Lubrication: Ensure oiler works. Chain should throw oil during operation.

WARNING! Always wear gloves when handling chain. Ensure engine is off and cool.

Engine Maintenance

Regular maintenance ensures long life.

CAUTION! Use only manufacturer-recommended parts and fluids.

Storage

Prepare saw for long-term storage.

1. Drain all fuel from tank and carburetor.
2. Run engine until it stops to clear fuel lines.
3. Remove chain, clean, and soak in oil. Clean bar groove.
4. Clean entire saw. Store in dry, cool place.

CAUTION! Storing with fuel can cause carburetor damage and starting problems.

Warranty Information

Timber Bear Chainsaws are covered by a 2-year limited warranty for residential use and a 90-day warranty for commercial use. Warranty covers defects in materials and workmanship. It does not cover damage from misuse, neglect, improper maintenance, or normal wear. Proof of purchase required. For warranty service, contact authorized service center or call 1-800-TIMBER-1. Visit www.timberbear.com for details.

Troubleshooting

Service: For repairs beyond basic maintenance, contact authorized Timber Bear service center at 1-800-TIMBER-1 or visit www.timberbear.com.