Husqvarna 525 LX - User Manual

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The Husqvarna 525LX is a two-stroke engine grass trimmer designed for both grass clearing and trimming. It is a powerful and potentially dangerous tool if not used carefully and correctly, emphasizing the importance of reading and understanding the operator's manual before use.

Function Description:

The 525LX is equipped with a trimmer head to cut grass. It is intended for clearing and trimming grass, and not for other tasks such as grass trimming and grass clearing, which implies a distinction in application that the user must understand. The product's design includes a spring-loaded start/stop switch, which allows it to be started with low speed and force on the starter handle. The throttle trigger lockout prevents accidental operation of the throttle control. The product also features a vibration damping system to reduce vibrations during operation. The airflow from the rotating trimmer cord can be used to sweep cut grass from an area.

Important Technical Specifications:

Engine: Two-stroke engine.
Cylinder displacement: 25.4 cm³
Cylinder bore: 34 mm
Stroke: 28 mm
Idle speed: 3000 rpm
Recommended max. speed: 9500 rpm
Speed of output shaft: 6500 rpm
Max. engine output (according to ISO 8893): 1.0 kW @ 8500 rpm
Catalytic converter muffler: Yes
Speed-regulated ignition system: Yes
Ignition system manufacturer/type: IKEDA/UK
Spark plug: NGK BPMR8Y
Electrode gap: 0.65 mm
Fuel and lubrication system manufacturer/type of carburettor: Walbro WTEA-8C
Fuel tank capacity: 0.51/510 litre/cm³
Weight (without fuel, cutting attachment and guard): 4.5 kg
Noise emissions (sound power level, measured): 104 dB (A)
Noise emissions (sound power level, guaranteed LWA): 106 dB (A)
Sound levels (equivalent sound pressure level at the operator's ear, measured according to EN ISO 11806 and ISO 7917, min./max.): 94 dB(A) (equipped with trimmer head, original)
Vibration levels (equivalent vibration levels (ahv,eq) at handles, measured according to EN ISO 11806 and ISO 22867, m/s²): 2.1/1.9 (equipped with trimmer head, original, left/right)

Usage Features:

Fuel: Requires a gasoline/oil mixture of at least 90 octane (RON) and two-stroke oil. Husqvarna two-stroke oil (mixture 1:50 or 2%) is recommended. Low-emission (alkylate) gasoline is also recommended for better performance and reduced dangerous exhaust fumes. Ethanol blended fuel (E10 max 10%) can be used, but higher blends may cause lean running conditions.
Starting: The product is started by pushing the air purge bulb to fill it with fuel, moving the choke control to the choke position, and then pulling the starter rope.
Operation: When trimming grass, the trimmer head should be held immediately above the ground at an angle, without pushing the trimmer line into the grass. For sweeping grass, the trimmer head and cord should be held parallel to and above the ground with full throttle.
Safety: The product is equipped with various safety features, including a throttle trigger lockout, a stop switch, and a cutting attachment guard. Users are advised to maintain a minimum distance of 15 meters from people and animals during operation. Only flexible cutting wire should be used; metal cutting elements are prohibited.

Maintenance Features:

Daily Maintenance:
- Check throttle trigger lock and throttle function.
- Check stop switch function.
- Ensure cutting attachment does not rotate at idle speed.
- Clean air filter (replace if necessary).
- Examine cutting attachment guard for damages/cracks.
- Examine trimmer head for damages/cracks.
- Check tightness of screws and nuts.
- Examine engine, fuel tank, and fuel lines for leaks.
Weekly Maintenance:
- Clean cooling system.
- Examine starter and starter rope for damages.
- Examine vibration damping elements for damages/cracks.
- Clean outside of spark plug, check electrode gap, and adjust/replace spark plug.
- Clean outside of carburettor and surrounding space.
- Check bevel gear lubricant level (fill with special grease if necessary).
- Clean or replace spark arrestor mesh on the muffler (for mufflers without catalytic converter).
Monthly Maintenance:
- Check fuel filter for contamination and fuel hose for cracks/defects (replace if necessary).
- Check all cables and connections.
- Check clutch, clutch springs, and clutch drum for wear (replace if necessary by authorized service workshop).
- Replace spark plug.
- Check and clean spark arrestor mesh on the muffler (for mufflers without catalytic converter).
Air Filter: Clean the air filter at 25-hour intervals or more frequently in dusty conditions. Replace damaged, very dirty, or fuel-soaked air filters.
Spark Plug: Examine the spark plug if engine power is low, starting is difficult, or idle speed is incorrect. Clean dirty spark plugs and ensure correct electrode gap. Replace if necessary.
Muffler: The muffler's spark arrestor screen should be cleaned or replaced if clogged.
Bevel Gear: The bevel gear should be filled three-quarters with lubricant.
Cutting Attachment: The cutting attachment guard must be fitted before operation. Only use recommended cutting attachments and guards.
General: All covers, guards, and handles must be fitted before starting. The product should be cleaned externally. More extensive maintenance and service work should be carried out by an authorized service workshop.