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Husqvarna LC 151, LC 151S, LB 251S, LB 256SP Lawnmowers

Comprehensive operator's manual for Husqvarna LC 151, LC 151S, LB 251S, and LB 256SP series lawnmowers, covering safety, assembly, operation, maintenance, and technical specifications.

Table of contents

Product Overview

The Husqvarna LC 151, LC 151S, LB 251S, and LB 256SP are walk-behind lawnmowers designed for grass cutting. Depending on the model, they feature options for grass collection, side discharge, and mulching to fertilize the lawn.

Lawnmower components overview
Lawnmower components overview

Safety Instructions

Warning: Improper use can cause serious injury or death. Always read the manual before operation. Keep children and animals away from the work area. Never operate the mower on slopes steeper than 15 degrees. Ensure the engine is stopped and the spark plug cable is disconnected before performing any maintenance or repairs.

Safety symbols and warnings
Safety symbols and warnings

Assembly and Setup

The handle can be adjusted to different heights for operator comfort. Ensure all knobs are fully tightened before use. For models with a grass catcher, assemble the frame and bag according to the provided instructions. Ensure the mower is in the correct operating position before starting.

Operation

Before starting, check the oil level and ensure the fuel tank is filled with high-quality, unleaded gasoline (minimum 90 RON). To start the engine, hold the motor brake handle against the handlebar and pull the starter rope. To stop the engine, release the motor brake handle. For self-propelled models, use the drive lever or handle to engage the wheel drive.

Oil viscosity chart
Oil viscosity chart

Maintenance

Regular maintenance is essential for optimal performance and safety. Key tasks include:

  • Checking and changing engine oil (first change after 5 hours, then every 50 hours).
  • Cleaning the air filter regularly, especially in dusty conditions.
  • Inspecting the cutting blade for damage or dullness; have it sharpened or replaced by an authorized service center.
  • Cleaning the underside of the cutting deck to prevent grass buildup.
  • Checking the spark plug and fuel system for leaks or damage.

Troubleshooting

If the engine fails to start, check the spark plug connection, fuel level, and fuel quality. If the engine runs unevenly, inspect the air filter and fuel system. For persistent issues, contact an authorized Husqvarna service dealer.

Disposal

Follow local recycling regulations for the disposal of the product and chemicals such as engine oil and fuel. If the product is no longer in use, return it to a Husqvarna dealer or a recycling facility.

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