McCulloch Chainsaw Manual 2.0 CID

The McCulloch Chainsaw 2.0 CID is a professional-grade gas-powered chainsaw designed for demanding cutting tasks. It features a 2.0 cubic inch (33cc) engine, automatic oiling system, anti-vibration handles, tool-less chain tensioning, inertia-activated chain brake, and a 16-inch Oregon bar and chain. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 2.0 CID engine, 16-inch guide bar, automatic chain oiler, anti-vibration system, inertia chain brake, tool-less chain tensioner, and easy-start system.

Assembly & Preparation

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

1. Attach guide bar and chain: Place bar onto mounting studs, loop chain around sprocket and bar, adjust tension.
2. Fill oil reservoir: Use McCulloch bar and chain oil or equivalent.
3. Mix fuel: Use fresh unleaded gasoline (minimum 89 octane) with 2-cycle oil at 50:1 ratio.
4. Prime and choke: Press primer bulb 5-10 times, set choke to cold start position.

WARNING! Always wear appropriate safety gear: eye protection, hearing protection, gloves, chainsaw chaps, and steel-toed boots.

First-Time Operation

Before starting, ensure chain brake is engaged and area is clear.

1. Starting procedure: Place on ground, hold front handle with left hand, step on rear handle, pull starter cord briskly.
2. Warm-up: Allow engine to run at idle for 30-60 seconds before cutting.
3. Chain lubrication check: Verify oil is being delivered to bar by holding saw over light-colored surface and running at moderate speed.
4. Test chain brake: With engine at idle, engage brake to ensure proper function.

CAUTION! Never start chainsaw in enclosed area. Carbon monoxide poisoning can occur.

Specifications

• Engine Type: 2-stroke, air-cooled
• Displacement: 2.0 CID (33cc)
• Power Output: 1.8 kW (2.4 HP)
• Fuel/Oil Ratio: 50:1 (unleaded gasoline to 2-cycle oil)
• Bar Length: 16 inches (40 cm)
• Chain Pitch: 3/8" low-profile
• Chain Gauge: 0.050" (1.3 mm)
• Sound Pressure Level: 106 dB(A)
• Vibration Level: Front handle: 4.2 m/s², Rear handle: 5.8 m/s²
• Warranty: 2-year consumer warranty

Controls and Components

Main controls: Throttle trigger, throttle trigger lockout, stop switch, choke control, primer bulb, chain brake lever.

Safety Features: Chain brake (inertia-activated), throttle trigger lockout, right-hand guard, chain catcher.

Maintenance points: Air filter cover, spark plug, chain tensioner, oil filler cap, fuel filler cap. Adjustments: Chain tension (tool-less), idle speed (requires screwdriver), oil flow rate (adjustment screw).

Fuel & Lubrication

Fuel mixture: Always use fresh unleaded gasoline (minimum 89 octane) mixed with high-quality 2-cycle engine oil at 50:1 ratio.

1. Mix fuel in approved container before filling saw.
2. Use McCulloch bar and chain oil or equivalent for lubrication.
3. Check oil level before each use; refill when below half.
4. Clean oil filter every 10 hours of operation.

Tip: Never use automotive motor oil or old gasoline. Stale fuel can cause starting problems and engine damage.

Cutting Techniques

Proper cutting techniques ensure safety and efficiency.

1. Felling trees: Plan escape path, make notch cut, then back cut leaving hinge.
2. Limbing: Work from trunk outward, keep saw on uphill side when on slope.
3. Bucking: Support log properly, cut from top down, avoid cutting into ground.
4. Pruning: Use light touch, let chain do the work, maintain secure footing.
5. Kickback prevention: Keep saw properly sharpened, avoid tip contact, maintain firm grip.
6. Cutting angle: Use full throttle when cutting, avoid pushing or forcing saw.

WARNING! Never cut above shoulder height. Always maintain secure footing and balance.

Safety Features

Chain Brake: Automatically activates during kickback; can also be manually engaged. Throttle Trigger Lockout: Must be depressed before throttle can be engaged. Right-Hand Guard: Protects hand from broken chain. Chain Catcher: Helps prevent broken chain from striking operator.

Maintenance & Storage

Daily maintenance: Clean air filter, check chain tension, inspect bar for wear, clean saw of debris.

Weekly maintenance: Sharpen chain, clean spark arrestor screen, check all fasteners for tightness.

Seasonal storage: Run carburetor dry, remove chain and bar for cleaning, store in dry location.

CAUTION! Always disconnect spark plug before performing maintenance. Allow engine to cool completely.

Warranty Information

McCulloch 2-Year Consumer Warranty: Covers defects in materials and workmanship for 2 years from date of purchase. Proof of purchase required. Warranty does not cover normal wear, misuse, improper maintenance, or use of non-genuine parts. For warranty service, contact authorized McCulloch service center. For support, visit www.mcculloch.com or contact 1-800-521-8559.

Troubleshooting

Service Intervals: Air filter: Clean every 10 hours. Spark plug: Replace every 50 hours. Fuel filter: Replace every 100 hours.

Service Centers: 1-800-521-8559; www.mcculloch.com