Husqvarna 525L Trimmer Manual

The Husqvarna 525L is a professional-grade straight shaft trimmer designed for demanding users. It features a 25.4cc 2-stroke X-Torq engine for reduced emissions and fuel consumption, Smart Start for easy starting, Air Purge for quick carburetor priming, and a low vibration system. Below are key sections for safety, features, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: X-Torq engine, Straight shaft, Air Purge system, Smart Start, LowVib anti-vibration, Quick-release trimmer head, Adjustable handle.

Safety Information

Read all instructions before operation. Wear proper PPE.

1. Personal Protective Equipment: Always wear safety glasses, hearing protection, gloves, long pants, and sturdy boots.
2. Clear work area: Remove stones, sticks, wire, and other debris that could be thrown.
3. Fuel safety: Refuel outdoors only when engine is cool. Use fuel mix specified in manual.
4. Operation: Keep bystanders and pets at least 50 feet away. Never operate near flammable materials.

WARNING! Risk of serious injury or death from cutting attachment. Never operate without proper guards installed.

Assembly & First Use

Unpack and inspect contents. Assemble according to instructions.

1. Attach shaft: Connect lower and upper shaft sections securely.
2. Install handle: Position adjustable handle to comfortable height and tighten.
3. Install cutting attachment: Follow instructions for trimmer head or blade installation.
4. Add fuel: Mix high-quality 2-stroke oil with unleaded gasoline (50:1 ratio).
5. Starting procedure: Set stop switch to start, press fuel pump 5-6 times, set choke, pull starter cord.

CAUTION! Ensure all fasteners are tight before operation. Check for fuel leaks.

Specifications

• Engine Type: 25.4cc 2-stroke, X-Torq.
• Power Output: 0.9 kW (1.2 hp).
• Fuel Tank Capacity: 0.5 liters (16.9 fl oz).
• Fuel/Oil Ratio: 50:1 (Husqvarna 2-stroke oil recommended).
• Shaft Type: Straight steel shaft.
• Cutting Width: Up to 17 inches with trimmer head.
• Weight: 5.3 kg (11.7 lbs) without cutting attachment.
• Sound Pressure Level: 100 dB(A).
• Vibration Level: Front handle 3.2 m/s², rear handle 4.5 m/s².

Controls and Components

Main components: Throttle trigger, Throttle trigger lockout, Stop switch, Choke control, Fuel pump, Air purge button.

Handle Area: Throttle trigger with lockout for safety, adjustable handle positions, shoulder strap attachment points.

Engine: Combined choke/stop control, fuel tank cap with dipstick, spark plug, air filter cover, muffler with spark arrestor. Shaft: Straight design with drive shaft inside, connection points for attachments.

Operation Instructions

Starting, operation, and stopping procedures.

1. Pre-operation check: Verify all guards are in place, cutting attachment secure, area clear.
2. Starting cold engine: Set stop switch to start, press fuel pump, set choke, pull starter cord.
3. Starting warm engine: No choke needed, may need slight throttle.
4. Operation technique: Use sweeping motion from right to left, maintain proper balance.
5. Stopping: Release throttle, allow engine to idle briefly, press stop switch.

Tip: Keep trimmer head parallel to ground for even cutting. Avoid digging into soil.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

WARNING! Always disconnect spark plug before performing maintenance.

Cutting Attachment Guide

Supports trimmer heads and blades for different applications.

1. Trimmer head: For grass and weeds. Use 2.0mm or 2.4mm nylon line.
2. Grass blade: 3-tooth blade for thick grass and weeds.
3. Brush blade: Multi-tooth blade for heavy brush and saplings.
4. Installation: Ensure engine is off. Follow specific attachment instructions.
5. Line replacement: Tap head on ground while running or use quick-release system.

WARNING! Always use correct guard for each cutting attachment. Never use metal blades without proper training.

Storage Guidelines

Proper storage prevents fuel system issues and corrosion.

1. Short-term (under 30 days): Add fuel stabilizer to fuel tank, run engine briefly to distribute.
2. Long-term (over 30 days): Drain fuel tank completely. Run engine until it stops to empty carburetor.
3. Clean unit thoroughly, especially cooling fins and air filter area.
4. Store in dry, well-ventilated area, protected from moisture.
5. Remove cutting attachment or coat with oil to prevent rust.

CAUTION! Never store with fuel in tank for extended periods without stabilizer.

Warranty Information

Husqvarna 525L comes with a 2-year commercial warranty and 1-year consumer warranty from date of purchase. Warranty covers defects in materials and workmanship. Not covered: normal wear, misuse, improper maintenance, use of non-genuine parts. For warranty service, contact authorized Husqvarna dealer with proof of purchase. For support, visit www.husqvarna.com or contact 1-800-487-5962.

Troubleshooting

Reset: For electronic ignition issues, disconnect spark plug wire for 30 seconds.

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