Husqvarna FS 400 LV: Complete Guide to Features, Applications, Performance, and Professional Use

The Husqvarna FS 400 LV is a compact, powerful walk-behind floor saw designed for professional concrete and asphalt cutting applications. Built for durability, precision, and ease of use, this saw is widely used by contractors, road crews, and construction professionals who need reliable straight-line cutting in slabs, pavements, and repair work.

Known for its balanced design, excellent depth control, and compatibility with a wide range of diamond blades, the Husqvarna FS 400 LV is a go-to solution for small-to-medium cutting jobs where accuracy and productivity matter.

What Is the Husqvarna FS 400 LV?

The Husqvarna FS 400 LV is a walk-behind concrete and asphalt saw engineered for flat, straight cutting on horizontal surfaces. It is designed to handle tasks such as expansion joint cutting, road repair, utility work, and surface removal with consistency and control.

This model is part of Husqvarna’s professional floor saw lineup and is optimized for:

• Concrete cutting

• Asphalt cutting

• Repair and maintenance work

• Light road and pavement projects

Its compact footprint makes it especially useful in confined areas where larger floor saws are impractical.

Manufacturer Overview

The FS 400 LV is manufactured by Husqvarna, a globally recognized brand known for producing professional-grade construction equipment, power cutters, and diamond tools. Husqvarna equipment is widely respected for durability, innovation, and jobsite reliability.

Key Features of the Husqvarna FS 400 LV

The Husqvarna FS 400 LV is designed with features that enhance operator control, cutting accuracy, and overall productivity.

Compact and Balanced Design

One of the standout qualities of the FS 400 LV is its compact, well-balanced frame. This design allows operators to:

• Maintain straight cuts

• Reduce operator fatigue

• Maneuver easily in tight spaces

• Transport the saw with minimal effort

The balanced weight distribution improves stability during cutting, which directly impacts cut quality.

Maximum Cutting Depth and Blade Capacity

The FS 400 LV is designed to work with mid-size diamond blades, providing sufficient cutting depth for most surface applications such as:

• Concrete slabs

• Asphalt surfaces

• Sidewalks

• Driveways

Its blade capacity makes it versatile for both residential and light commercial projects.

Adjustable Cutting Depth Control

Precise depth adjustment is essential for professional results. The Husqvarna FS 400 LV includes a smooth, easy-to-use depth control mechanism that allows operators to:

• Set consistent cutting depths

• Make incremental adjustments

• Maintain uniform joint depth

This is especially important for expansion joints and controlled cuts.

Ergonomic Handle System

Operator comfort is a major consideration in walk-behind saw design. The FS 400 LV features an ergonomic handle that:

• Improves grip and control

• Reduces vibration

• Allows for comfortable operation over long periods

An adjustable handle height helps accommodate different operators and working positions.

Integrated Water System for Wet Cutting

The Husqvarna FS 400 LV is designed for wet cutting, which is the preferred method for concrete and asphalt.

Benefits of the integrated water system include:

• Dust suppression

• Blade cooling

• Extended blade life

• Cleaner cuts

Wet cutting also helps meet jobsite safety and dust-control requirements.

Applications of the Husqvarna FS 400 LV

The FS 400 LV is a versatile saw used across many construction and maintenance tasks.

Concrete Slab Cutting

This saw is commonly used for cutting concrete slabs for:

• Expansion joints

• Crack repair

• Section removal

• Surface preparation

Its stability and depth control make it ideal for straight, clean cuts.

Asphalt Cutting and Pavement Repair

Asphalt cutting is another core application. Contractors rely on the FS 400 LV for:

• Road repairs

• Utility trenching access

• Patching and resurfacing

• Parking lot maintenance

Paired with the correct asphalt diamond blade, the saw delivers fast and consistent results.

Sidewalks, Curbs, and Driveways

The compact size of the FS 400 LV makes it well-suited for residential and municipal work, including:

• Sidewalk panel replacement

• Driveway cuts

• Curb repair

Its maneuverability is a major advantage in these environments.

Utility and Maintenance Work

Utility crews use the FS 400 LV for:

• Access cuts

• Pipe and conduit installation

• Surface repairs

Its reliability makes it suitable for frequent transport and repeated jobsite use.

Blade Selection for the Husqvarna FS 400 LV

Choosing the correct diamond blade is essential to maximize performance.

Concrete Diamond Blades

For cured or reinforced concrete, use a blade designed specifically for concrete. These blades offer:

• Optimized bond hardness

• Strong segment design

• Consistent cutting speed

Asphalt Diamond Blades

Asphalt blades are engineered with softer bonds and wider gullets to handle highly abrasive material without overheating.

Matching Blade Size and RPM

Always ensure:

• The blade size matches the saw’s specifications

• The blade RPM rating meets or exceeds the saw’s operating speed

This ensures safe and efficient operation.

Why Professionals Choose the Husqvarna FS 400 LV

The FS 400 LV is popular among professionals because it delivers a strong balance of performance, durability, and usability.

Reliable Jobsite Performance

Contractors trust the FS 400 LV for its consistent operation and dependable cutting results across different materials.

Easy Transport and Storage

Its compact size makes it easy to:

• Load into trucks or trailers

• Move between jobsites

• Store in limited space

This is a major benefit for mobile crews.

Reduced Operator Fatigue

Ergonomic design and smooth operation reduce strain during extended cutting tasks, improving productivity and safety.

Versatility Across Projects

From residential work to light commercial and municipal projects, the FS 400 LV adapts well to different job requirements.

Maintenance and Care

Proper maintenance ensures long service life and consistent performance.

Recommended maintenance practices include:

• Cleaning slurry and debris after each use

• Inspecting the water system for blockages

• Checking blade condition and mounting hardware

• Ensuring moving parts are properly lubricated

• Storing the saw in a dry environment

Routine care helps prevent downtime and extends equipment life.

Safety Considerations

Operating the Husqvarna FS 400 LV requires standard concrete cutting safety practices.

Always use:

• Eye protection

• Hearing protection

• Respiratory protection (especially when dry cutting)

• Steel-toe footwear

• Gloves

Ensure the blade guard and water system are properly installed before operation.

Who Uses the Husqvarna FS 400 LV?

The FS 400 LV is commonly used by:

• Concrete contractors

• Asphalt repair crews

• Municipal maintenance teams

• Utility contractors

• General construction professionals

Its versatility and reliability make it suitable for both specialized and general applications.

Husqvarna FS 400 LV vs Larger Floor Saws

While larger floor saws offer deeper cutting capacity, the FS 400 LV excels in situations where:

• Space is limited

• Portability is required

• Medium-depth cuts are sufficient

• Precision is more important than raw power

For many contractors, the FS 400 LV fills the gap between handheld saws and heavy-duty walk-behind models.

FAQs About the Husqvarna FS 400 LV

What is the Husqvarna FS 400 LV used for?
It is used for cutting concrete and asphalt in slabs, pavements, sidewalks, and repair applications.

Is the Husqvarna FS 400 LV a walk-behind saw?
Yes. It is a compact walk-behind floor saw designed for straight horizontal cuts.

Can the FS 400 LV cut asphalt?
Yes. With the correct diamond blade, it is well-suited for asphalt cutting and pavement repair.

Does the Husqvarna FS 400 LV support wet cutting?
Yes. It includes an integrated water system for dust control and blade cooling.

What type of projects is the FS 400 LV best for?
It is ideal for residential, light commercial, and maintenance projects requiring precise surface cuts.

Is the FS 400 LV easy to transport?
Yes. Its compact design makes it easy to move and transport between jobsites.

What blades can be used with the FS 400 LV?
It supports a range of concrete and asphalt diamond blades within its size specifications.

Is the FS 400 LV suitable for professional use?
Yes. It is designed specifically for professional contractors and crews.

How accurate are cuts with the FS 400 LV?
The saw offers excellent straight-line stability and depth control for clean, uniform cuts.

How long does the Husqvarna FS 400 LV last?
With proper maintenance, it can deliver many years of reliable professional service.

Final Thoughts on the Husqvarna FS 400 LV

The Husqvarna FS 400 LV is a dependable, professional-grade walk-behind saw built for precision concrete and asphalt cutting. Its compact size, balanced design, and user-friendly features make it an excellent choice for contractors who need reliable performance without the bulk of larger floor saws. Whether used for slab work, pavement repair, or maintenance projects, the FS 400 LV delivers consistent results, efficient operation, and long-term value on demanding jobsites.