Husqvarna 136 Chainsaw Manual

The Husqvarna 136 is a lightweight, professional-grade gasoline chainsaw designed for demanding cutting tasks. It features a high-performance 2-stroke engine, X-Torq® technology for reduced fuel consumption and emissions, an inertia-activated chain brake, combined choke/stop control, and an ergonomic design with low vibration. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: X-Torq® engine, Air Injection™ air cleaning system, Side-mounted chain tensioner, Combined choke/stop control, Inertia activated chain brake, LowVib® anti-vibration system.

Safety Information

Read and understand all instructions before operation. Always wear appropriate PPE.

1. Personal Protective Equipment (PPE): Wear chainsaw protective trousers, safety boots, gloves, eye and hearing protection, and a helmet.
2. Work Area Safety: Keep bystanders and animals at a safe distance. Ensure secure footing.
3. Kickback Awareness: Hold saw firmly with both hands. Do not cut with the tip of the bar. Be aware of the kickback danger zone.
4. Fuel Safety: Refuel in a well-ventilated area with the engine stopped. Use fresh fuel mixture.

WARNING! A chainsaw is a dangerous tool if used incorrectly. Failure to follow safety instructions can result in serious injury or death.

Assembly & Preparation

Unpack and inspect contents. Assemble guide bar and chain.

1. Attach the guide bar and chain: Place the bar on the sprocket cover studs. Fit the chain around the bar sprocket and onto the drive sprocket. Ensure cutting teeth face forward on top of the bar.
2. Tension the chain: Use the side-mounted tensioner to adjust until the chain snaps back when pulled from the bar. Tighten bar nuts.
3. Fill with fuel: Use a clean fuel can. Mix high-quality 2-stroke oil with unleaded gasoline (50:1 ratio for Husqvarna XP+ oil).
4. Fill chain oil: Use environmentally adapted chain oil. Check oiler function.

CAUTION! Ensure the chain brake is disengaged (pulled back towards the front handle) before starting.

Specifications

• Engine Type: 2-stroke, single cylinder, X-Torq®.
• Displacement: 40.9 cc (2.5 cu.in).
• Power Output: 2.0 kW (2.7 hp).
• Fuel Tank Volume: 0.47 L (0.10 US gal).
• Oil Tank Volume: 0.26 L (0.06 US gal).
• Recommended Bar Length: 15" (38 cm) or 16" (40 cm).
• Chain Pitch/Gauge: 3/8" LP / .050" (1.3 mm).
• Weight (excl. cutting equipment): 4.7 kg (10.4 lbs).
• Sound Pressure Level: 106 dB(A).
• Vibration Levels (front/rear handle): 3.2/2.8 m/s².

Controls and Components

Main components: Front handle with chain brake, Rear handle with throttle trigger, Throttle trigger lockout, Stop switch, Choke control, Decompression valve (if equipped), Primer bulb, Chain tensioner.

Operation: Throttle trigger lockout must be pressed before throttle can be engaged. Combined choke/stop control: Pull out fully for choke (cold start), push in halfway for run, push in fully for stop.

Maintenance Points: Air filter cover, Spark plug, Cylinder cover, Chain catcher, Muffler, Oil pump adjustment screw.

Starting & Stopping

Cold Start:

1. Place saw on flat ground. Engage chain brake.
2. Press decompression valve (if equipped).
3. Set combined control to full choke (pull out).
4. Press primer bulb 4-6 times until fuel is visible.
5. Hold front handle with left hand, place right foot in rear handle. Pull starter handle sharply until engine fires.
6. Set combined control to run (push in halfway). Pull starter handle again to start.
7. Disengage chain brake before revving.

Warm Start: Combined control in run position. No choke or priming needed.

Stopping: Release throttle. Push combined control fully in to STOP position.

Cutting Techniques

Always use both hands. Maintain a firm grip and secure stance.

1. Felling: Plan escape path. Make notch cut (1/3 of tree diameter). Make felling cut from opposite side, leaving a hinge.
2. Limbing: Stand on left side of trunk. Cut branches from top side. Beware of spring-back.
3. Bucking: Support log properly. Cut from top side when possible. For tensioned logs, use appropriate techniques (compression/tension cuts).
4. Kickback Prevention: Keep saw at full throttle when entering cut. Do not let the upper quadrant of the bar tip contact wood.

Tip: Let the chain do the work; do not force the saw.

Maintenance Schedule

CAUTION! Always disconnect the spark plug cap before performing maintenance.

Chain Sharpening & Tensioning

A sharp, properly tensioned chain is essential for safety and performance.

1. Sharpening: Use a round file matching chain pitch (typically 4.0 mm / 5/32"). File each cutter from the inside out at the recommended angle (usually 30°). Maintain equal length on all cutters. File depth gauges with a flat file.
2. Tensioning: Loosen bar nuts. Turn tensioning screw clockwise until the chain fits snugly against the bar. Pull the chain around by hand; it should snap back. Tighten bar nuts while lifting tip of bar.

WARNING! Always wear gloves when handling the chain.

Storage

For storage longer than 30 days:

1. Empty the fuel tank and run the engine until it stops to clear carburetor.
2. Empty the chain oil tank.
3. Remove, clean, and oil the chain. Store separately.
4. Clean the entire saw and apply a thin coat of oil on metal surfaces.
5. Store in a dry, cool place, protected from dust.

CAUTION! Never store a chainsaw with fuel in the tank for extended periods.

Troubleshooting

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

Support: Husqvarna AB, SE-561 82 Huskvarna, Sweden. www.husqvarna.com