chainsaw manual cs 301

The Chainsaw CS 301 is a professional-grade gasoline-powered chainsaw designed for heavy-duty cutting tasks. It features a 45cc 2-stroke engine, 16-inch guide bar, automatic chain oiler, anti-vibration system, chain brake, and quick-stop inertia brake. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 45cc 2-stroke engine, 16-inch guide bar, automatic chain oiler, anti-vibration handles, chain brake, quick-stop system.

Assembly & Setup

Unpack and inspect all components. Assemble on clean, flat surface.

1. Attach guide bar: Loosen bar nuts, position bar on studs, align chain sprocket.
2. Install chain: Place chain over bar with cutting teeth facing forward, adjust tension.
3. Fill fuel tank: Use proper 50:1 gasoline/oil mixture (see section 6).
4. Fill oil tank: Use quality bar and chain oil.
5. Check controls: Ensure throttle trigger, choke, and chain brake function properly.

WARNING! Always wear protective gear during assembly. Keep hands away from sharp chain.

Safety Instructions

Read all safety instructions before operation.

1. Always wear: Safety glasses, hearing protection, gloves, steel-toed boots, cut-resistant pants.
2. Clear work area: Remove obstacles, ensure stable footing.
3. Check chain tension: Proper tension reduces kickback risk.
4. Two-hand operation: Always maintain firm grip with both hands.
5. Never operate: Above shoulder height, on ladders, or when fatigued.

DANGER! Chainsaw kickback can cause serious injury. Always use proper cutting techniques.

Specifications

• Engine Displacement: 45cc
• Power Output: 2.2 kW (3.0 HP)
• Maximum Power Speed: 9,000 RPM
• Idle Speed: 2,800 RPM
• Fuel Consumption: 550 g/kWh
• Sound Pressure Level: 105 dB(A)
• Vibration Level: 4.5 m/s² (front handle), 5.5 m/s² (rear handle)
• Spark Plug: NGK BPMR7A (gap 0.5mm)
• Warranty: 2 years commercial, 5 years private use

Controls and Components

Main components: Front handle with chain brake, rear handle with throttle trigger, choke lever, stop switch, decompression valve.

Controls: Throttle trigger (right), throttle lockout (left), choke lever (cold start), stop switch (emergency stop), decompression valve (easier starting).

Safety features: Chain brake (front hand guard), inertia brake (quick-stop), right-hand guard, chain catcher, anti-vibration mounts. Maintenance points: Air filter cover, spark plug access, chain tension adjustment, oil filler cap.

Fuel & Oil Mixture

Use fresh unleaded gasoline (minimum 90 octane) mixed with high-quality 2-stroke oil.

1. Mix ratio: 50:1 (20ml oil per 1 liter gasoline).
2. Mix in separate container: Never mix directly in fuel tank.
3. Shake thoroughly: Ensure complete mixing before refueling.
4. Use within 30 days: Old fuel loses volatility and can damage engine.
5. Bar & chain oil: Use SAE 30 or special chain oil for automatic oiler.

CAUTION! Never use straight gasoline or automotive motor oil. Store fuel in approved containers away from heat sources.

Starting Procedure

Follow proper starting sequence to prevent damage.

1. Cold start: Set chain brake, move choke lever to closed position.
2. Prime: Press primer bulb 5-6 times until fuel is visible.
3. Decompression: Press decompression valve (if equipped).
4. Pull starter: Place on ground, hold rear handle with right foot, pull starter cord briskly.
5. Warm start: After engine fires, move choke to half position, pull until engine starts.
6. Warm engine: Allow 30 seconds at idle before engaging throttle.

WARNING! Never drop-start or start above waist height. Ensure chain brake is engaged during starting.

Cutting Techniques

Proper technique ensures safety and efficiency.

1. Felling trees: Use notch cut (1/3 diameter) then back cut (2 inches above notch).
2. Limbing: Work from trunk to tips, keep saw between you and branch.
3. Bucking: Support logs properly, cut from top down on supported logs.
4. Kickback prevention: Avoid nose contact, maintain firm grip, use reduced-kickback chain.
5. Pinch prevention: Recognize compression/tension wood, use wedges when needed.

DANGER! Always plan escape route when felling trees. Never cut alone in remote areas.

Maintenance Schedule

Regular maintenance ensures optimal performance and safety.

CAUTION! Always disconnect spark plug wire before performing maintenance.

Warranty Information

2-year commercial warranty, 5-year private use warranty. Warranty covers defects in materials and workmanship. Not covered: Normal wear, improper maintenance, accident damage, use of non-approved parts or fuel. For warranty claims, contact authorized service center with proof of purchase.

Troubleshooting

Service Centers: Contact authorized service network. Technical support: 1-800-555-CHAIN (2426)