Husqvarna L65 Chainsaw Manual

The Husqvarna L65 is a professional-grade chainsaw designed for demanding forestry and arborist work. It features a powerful 65cc engine, robust construction, advanced anti-vibration system, automatic chain oiling, and safety features like a chain brake and throttle lockout. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 65cc 2-stroke engine, 20-inch guide bar, automatic chain oiler, inertia-activated chain brake, combined choke/stop control, and anti-vibration system.

Safety Information

Always wear proper PPE: helmet, eye protection, hearing protection, gloves, chainsaw chaps, and steel-toe boots.

1. Pre-Operation Check: Inspect chain tension, sharpness, and lubrication before each use.
2. Clear Work Area: Ensure no obstacles or people within 15 feet.
3. Secure Workpiece: Never cut free-hand; secure logs with proper supports.
4. Two-Hand Operation: Always maintain firm grip with both hands.
5. Kickback Awareness: Avoid contact with bar nose; use reduced-kickback chain.

WARNING! Chainsaws are dangerous tools. Failure to follow safety instructions can result in serious injury or death. Read entire manual before operation.

Assembly & First-Time Setup

Unpack and inspect all components. Assembly requires mounting guide bar and chain, and filling fluids.

1. Mount Guide Bar: Place bar on studs, align chain groove, tensioning pin in bar hole.
2. Install Chain: Place chain over sprocket, ensure cutting teeth face forward on top.
3. Adjust Chain Tension: Loosen bar nuts, adjust tensioning screw until chain snaps back when pulled.
4. Fill Fluids: Use Husqvarna HP 2-stroke oil mixed 50:1 with 90+ octane gasoline. Fill chain oil with SAE 30.
5. Initial Start: Set master control to choke, pull starter cord 3-4 times, move to run position, start engine.

CAUTION! Never operate without proper chain tension and lubrication. Always mix fuel in approved container.

Specifications

• Engine Displacement: 65 cc
• Power Output: 4.2 kW / 5.7 hp
• Fuel Consumption: 560 g/kWh
• Sound Pressure Level: 112 dB(A)
• Vibration Level: 4.5 m/s² (front handle), 5.5 m/s² (rear handle)
• Max Recommended Bar Length: 24 inches
• Chain Pitch: 3/8 inch
• Chain Gauge: 0.050 inch
• Ignition System: Electronic, air gap 0.3 mm
• Spark Plug: Champion RCJ7Y or equivalent, gap 0.5 mm

Controls and Components

Right Side: Throttle trigger, throttle lockout, front handle. Left Side: Master control (choke/stop/run), rear handle, chain brake lever.

Master Control Positions: STOP (engine off), RUN (normal operation), CHOKE (cold start).

Chain Brake: Manual activation via hand guard; inertia activation during kickback. Chain Tensioner: Located near bar nuts; clockwise to tighten. Chain Oiler Adjustment: Screw near oil tank; turn clockwise for more oil flow. Decompression Valve: Reduces starting effort; press before pulling starter.

Operation Guide

Starting Procedure: Engage chain brake. Set master control to choke. Pull starter cord 3-4 times until engine fires. Move control to run. Pull starter to start. Release chain brake.

1. Warm-up: Allow 30-60 seconds at idle before cutting.
2. Cutting Technique: Use full throttle when cutting; let chain do the work.
3. Bucking: Support log at both ends; cut from top down.
4. Limbing: Work from trunk outward; beware of springback.
5. Felling: Notch face cut 1/3 diameter, back cut 2 inches above notch.

Tip: Keep chain sharp; a dull chain increases effort and kickback risk.

Maintenance Schedule

Daily: Check chain tension/sharpness, clean air filter, check oil levels, inspect bar for wear.

WARNING! Always disconnect spark plug wire before performing maintenance.

Chain Sharpening & Tensioning

Sharpening: Use 7/32 inch round file with guide. Maintain 30° top plate angle, 10° down angle. File all cutters to equal length.

1. Secure bar in vise.
2. Match file diameter to chain specification.
3. File from inside out, maintaining consistent angle.
4. Check depth gauges; file to 0.025 inch below cutter.
5. Tensioning: Chain should snap back when pulled from bar; adjust when cool.

CAUTION! Wear gloves when handling chain. A loose chain can derail; overtightening damages bar.

Storage & Winterization

Long-term storage: Empty fuel tank. Run engine until carburetor is dry. Remove chain, clean and oil. Store in dry, cool place.

Winter Operation: Use winter bar oil (SAE 10). Allow extra warm-up time. Keep air intake clear of snow.

CAUTION! Never store with fuel in tank for more than 30 days. Use fuel stabilizer if necessary.

Warranty Information

Husqvarna L65 comes with 2-year consumer warranty for private use, 1-year professional warranty. Warranty covers defects in materials and workmanship. Not covered: normal wear, misuse, improper maintenance, or use of non-genuine parts. For warranty claims, contact authorized Husqvarna dealer with proof of purchase. For support, visit www.husqvarna.com or contact 1-800-487-5962.

Troubleshooting

Service: For repairs beyond basic maintenance, contact authorized Husqvarna service center.

Support: 1-800-487-5962; www.husqvarna.com