660 esp chainsaw manual

The 660 ESP Chainsaw is a professional-grade power tool designed for heavy-duty cutting applications. It features a high-performance engine, electronic ignition, anti-vibration system, automatic oiler, chain brake, and ergonomic design. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: High-torque engine, Electronic Spark Plug (ESP) ignition, Anti-vibration handles, Automatic chain oiler, Quick-stop chain brake, Ergonomic rear handle.

Feature	Description
Engine displacement	66cc professional-grade engine
ESP ignition	Electronic ignition for reliable starting
Anti-vibration system	Reduces operator fatigue during extended use
Automatic oiler	Lubricates chain during operation
Chain brake	Stops chain instantly in kickback situations
Bar length options	20-inch to 36-inch guide bars available
Fuel capacity	850ml fuel tank for extended runtime
Oil capacity	400ml chain oil reservoir
Weight	7.2 kg (without bar and chain)
Sound power level	112 dB(A) - hearing protection required

Safety Instructions

Always read and follow all safety instructions before operation.

1. Wear proper PPE: Safety glasses, hearing protection, gloves, chainsaw chaps, and steel-toed boots.
2. Inspect chainsaw before each use: Check chain tension, sharpness, and all components.
3. Maintain secure footing: Always stand on stable ground with both feet.
4. Keep bystanders away: Maintain at least 15-foot safety zone.
5. Never operate above shoulder height or with one hand.

WARNING! Chainsaws are dangerous power tools. Failure to follow safety instructions can result in serious injury or death.

Assembly & Setup

Unpack and inspect all components. Assembly requires basic tools.

1. Attach guide bar: Place bar on mounting studs, align chain groove with oiler hole.
2. Install chain: Ensure cutting teeth face forward on top of bar.
3. Adjust chain tension: Loosen bar nuts, adjust tension screw, tighten nuts.
4. Fill fuel tank: Use fresh 50:1 gasoline/oil mixture (89 octane minimum).
5. Fill oil reservoir: Use quality bar and chain oil.
6. Prime carburetor: Press primer bulb 5-6 times until fuel is visible.

CAUTION! Always wear gloves when handling chain. Ensure proper chain direction.

Specifications

• Engine Type: 2-stroke, single cylinder, air-cooled.
• Displacement: 66cc.
• Power Output: 4.8 kW (6.5 hp).
• Fuel/Oil Ratio: 50:1 (high-quality 2-stroke oil).
• Ignition System: Electronic Spark Plug (ESP).
• Starting System: Recoil starter with decompression valve.
• Chain Pitch: 3/8" or .404" (depending on model).
• Chain Gauge: .058" or .063".
• Maximum RPM: 13,500.
• Idle Speed: 2,800 RPM.

Controls and Functions

Main controls located on top and rear handle.

Top Handle: Throttle trigger, Throttle lockout, Chain brake lever, Decompression valve.

Rear Handle: Master control lever (stop switch), Choke control, Primer bulb, Front hand guard.

Side Panel: Chain tension adjustment screw, Bar nuts, Oil filler cap, Fuel filler cap.

Safety Features: Chain brake (inertia-activated), Throttle lockout (prevents accidental acceleration), Right-hand guard, Spark arrestor muffler.

Operating Instructions

Starting procedure and cutting techniques.

1. Cold start: Set master control to STOP, set choke to FULL, press decompression valve, pull starter cord until first pop, set choke to HALF, pull until engine starts.
2. Warm start: Master control to RUN, choke OFF, pull starter cord.
3. Cutting position: Stand with feet shoulder-width apart, left arm straight, right arm slightly bent.
4. Basic cuts: Use bottom of bar for cutting, let saw do the work, avoid pushing or forcing.
5. Kickback prevention: Keep nose of bar away from objects, maintain firm grip, use reduced-kickback chain.

Tip: Always cut at full throttle for best performance and chain lubrication.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

1. Daily: Clean air filter, check chain tension, inspect bar for wear, clean cooling fins.
2. Weekly: Clean spark arrestor screen, check spark plug, inspect fuel filter.
3. Monthly: Clean carburetor, check fuel lines, inspect anti-vibration mounts.
4. Seasonal: Replace fuel filter, check clutch drum and sprocket, inspect chain brake function.
5. Annual: Professional servicing recommended for carburetor adjustment and compression test.

WARNING! Always disconnect spark plug wire before performing maintenance.

Chain Sharpening

Sharp chain improves cutting performance and safety.

1. Secure bar: Clamp bar in vise or use filing guide.
2. File angle: Maintain 30° cutting angle, 10° top plate angle.
3. File size: Use correct round file for chain pitch (typically 7/32" for 3/8" chain).
4. Filing direction: Push file forward only, maintain consistent pressure.
5. Depth gauges: File rakers to proper height (0.025" below cutting teeth).
6. Equal teeth: Ensure all teeth are same length for straight cutting.

CAUTION! Wear cut-resistant gloves when handling chain.

Storage Guidelines

Proper storage prevents fuel system issues and corrosion.

1. Short-term (under 30 days): Fill fuel tank to prevent condensation.
2. Long-term (over 30 days): Drain all fuel from tank and carburetor.
3. Run engine dry: Start engine and run until it stops from fuel starvation.
4. Remove chain: Clean and oil chain, store separately.
5. Clean exterior: Wipe down with oily rag to prevent rust.
6. Storage location: Cool, dry place away from children and ignition sources.

CAUTION! Never store with fuel in tank for extended periods - fuel degrades and gums carburetor.

Warranty Information

Professional use warranty: 90 days commercial, 1 year residential. Proof of purchase required. Warranty covers defects in materials and workmanship. Does not cover normal wear, misuse, improper maintenance, or unauthorized repairs. For warranty claims, contact authorized service center with serial number and purchase receipt.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Fuel issues, spark plug, flooded	Check fuel mixture, spark plug gap, wait if flooded, clean air filter.
Engine starts then dies	Carburetor adjustment, fuel filter	Adjust idle mixture screw, replace fuel filter, check fuel lines.
Chain won't turn	Clutch, chain brake, sprocket	Disengage chain brake, check clutch springs, inspect drive sprocket.
Chain throws oil	Oiler adjustment, oil type	Adjust oiler flow rate, use proper bar oil, clean oil ports.
Excessive vibration	Chain balance, mounts, bar	Balance chain, check anti-vibration mounts, inspect bar for straightness.
Loss of power	Air filter, exhaust, compression	Clean air filter and spark arrestor, check compression, decarbonize exhaust.

Service Centers: Contact authorized service network for repairs.

Technical Support: 1-800-555-CHAINSAW; www.660espchainsaw.com