Husqvarna Chainsaw 135 Manual

The Husqvarna Chainsaw 135 is a lightweight, easy-to-use chainsaw designed for homeowners and occasional users. It features a 40.9cc X-Torq engine for reduced fuel consumption and emissions, Smart Start for easy starting, LowVib anti-vibration system, combined choke/stop control, air injection centrifugal air cleaning, and inertia-activated chain brake. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: X-Torq engine, guide bar, cutting chain, front hand guard with chain brake, throttle trigger, throttle trigger lockout, choke/stop control, fuel tank, oil tank, and rear handle.

Safety Instructions

Read and understand all safety warnings before operation.

1. Personal Protective Equipment: Always wear safety glasses, hearing protection, gloves, chainsaw chaps/pants, and sturdy boots.
2. Work area safety: Clear area of bystanders, especially children. Ensure secure footing.
3. Fuel safety: Refuel outdoors only when engine is cool. Use approved fuel container.
4. Kickback awareness: Be aware of kickback zone (upper quadrant of bar tip). Use reduced-kickback chain.
5. Chain brake: Check function before each use. Understand how to activate manually.

WARNING! Chainsaws are dangerous tools. 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 guide bar: Remove bar cover nuts, position bar over studs, align chain with sprocket.
2. Install chain: Place chain over bar with cutting teeth facing forward on top. Ensure proper direction.
3. Tension chain: Adjust side tensioner until chain fits snugly against bar but can be pulled by hand.
4. Add fuel: Mix high-quality 2-stroke oil with unleaded gasoline (50:1 ratio for Husqvarna XP+ oil).
5. Add bar & chain oil: Fill oil tank with special chainsaw bar oil (not used motor oil).

CAUTION! Always wear protective gloves when handling chain. Ensure chain brake is disengaged during assembly.

Specifications

• Engine displacement: 40.9 cc
• Power output: 2.0 kW (2.7 hp)
• Fuel tank volume: 0.33 L (0.87 US pt)
• Oil tank volume: 0.25 L (0.53 US pt)
• Recommended bar length: 16 inches (40 cm)
• Chain pitch: 3/8" Low Profile
• Chain gauge: 0.050" (1.3 mm)
• Weight (excluding cutting equipment): 4.4 kg (9.7 lbs)
• Sound pressure level: 104 dB(A)
• Vibration levels: Front handle 3.5 m/s², Rear handle 4.5 m/s²

Controls and Components

Main controls: Front hand guard/chain brake, throttle trigger, throttle trigger lockout, choke/stop control, start/stop switch.

Right side: Chain tensioner, oil filler cap, fuel filler cap, air filter cover, spark plug cover.

Chain brake: Activated manually by pushing forward or automatically by inertia during kickback. Throttle lockout: Must be depressed before throttle can be engaged. Choke/stop control: Three positions - Run (horizontal), Choke (fully up), Stop (fully down).

Starting & Stopping

Cold start procedure (engine not warm):

1. Place chainsaw on flat ground, clear of debris.
2. Activate chain brake by pushing hand guard forward.
3. Press decompression valve (if equipped).
4. Set choke/stop control to choke position (fully up).
5. Press throttle trigger lockout and squeeze throttle once to set fast idle.
6. Pull starter handle until engine fires (usually 2-3 pulls).
7. Move choke/stop control to run position (horizontal).
8. Pull starter handle until engine starts.
9. Blip throttle to disengage fast idle.

Warm start: Skip choke step. Use run position only.

Stopping: Release throttle, move choke/stop control to stop position (fully down).

Operating Instructions

Basic cutting techniques for safe operation.

1. Firm grip: Hold front handle with left hand, rear handle with right hand. Thumbs wrapped underneath.
2. Stance: Stand with feet shoulder-width apart, left foot slightly forward.
3. Starting cut: Let chain reach full speed before contacting wood.
4. Buck cutting (felled trees): Support log properly. Cut from top side when possible.
5. Limbing: Work from trunk outward. Beware of spring-loaded branches.
6. Kickback prevention: Never cut with bar tip. Be aware of pinch points.
7. Chain lubrication: Check oil flow by pointing bar at light surface; should see oil line.

Tip: Let the chain do the work; don't force the saw. Maintain proper chain tension.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and safety.

1. Daily: Clean air filter, check chain tension, sharpen chain, clean saw exterior.
2. Weekly: Check spark plug, clean cooling fins, inspect bar for wear.
3. Monthly: Clean fuel filter, check all nuts and bolts for tightness.
4. Seasonally: Replace spark plug, clean carburetor air passage, inspect anti-vibration elements.

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

Chain Sharpening & Tensioning

Proper chain maintenance is critical for performance and safety.

1. Chain tensioning: Loosen bar nuts, adjust tensioner screw until chain fits snugly against bar but can be pulled by hand. Retighten bar nuts.
2. Sharpening: Use round file matching chain pitch (usually 4.0mm). Maintain 30° filing angle. File all cutters to equal length.
3. Depth gauge setting: Use depth gauge tool to maintain proper height (0.025" or 0.65mm).
4. Bar maintenance: Clean bar groove regularly. Flip bar monthly for even wear.

WARNING! A dull chain requires more force, increasing kickback risk and user fatigue.

Storage

Proper storage prevents fuel system issues and corrosion.

1. Short-term (under 30 days): Fill fuel tank to prevent condensation.
2. Long-term: Drain fuel tank completely. Run engine until it stops to clear carburetor.
3. Remove chain: Clean and soak in oil. Store separately.
4. Clean entire saw: Remove sawdust, dirt, and resin.
5. Store: In dry place, protected from moisture and dust. Cover but allow ventilation.

CAUTION! Never store chainsaw with fuel in tank for extended periods. Modern ethanol-blended fuels degrade quickly.

Troubleshooting

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

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