Home of the FAMOUS SHOCKER BLADE & SAW DEAL!
855-225-2337

Husqvarna FS400 LV

by Blades Admin

Husqvarna FS400 LV: Professional Walk-Behind Floor Saw for Precision Concrete and Asphalt Cutting

The Husqvarna FS400 LV is a compact, professional walk-behind floor saw engineered for clean, straight, and controlled cutting in concrete and asphalt. Designed for contractors who demand accuracy, durability, and ease of handling, the FS400 LV has become a trusted solution for surface cutting applications across residential, commercial, and municipal projects.

Manufactured by Husqvarna, this saw reflects decades of engineering expertise in construction equipment and diamond cutting systems. It is built to deliver reliable performance where consistency, portability, and jobsite efficiency matter most.

What Is the Husqvarna FS400 LV?

The Husqvarna FS400 LV is a walk-behind floor saw intended for horizontal cutting on flat surfaces. Unlike large, heavy road saws designed for extreme depth, the FS400 LV focuses on precision, balance, and control. It is commonly used for cutting expansion joints, patch boundaries, access lines, and surface repairs in concrete and asphalt.

Typical applications include:

  • Concrete slab and floor cutting

  • Expansion and control joints

  • Asphalt and pavement repair

  • Sidewalks, curbs, and driveways

  • Utility and maintenance access cuts

Its compact footprint allows it to work efficiently in tight spaces while still delivering professional-grade results.

Design Philosophy and Build Quality

Compact, Balanced Chassis

One of the defining characteristics of the Husqvarna FS400 LV is its excellent balance. The saw is engineered to distribute weight evenly over the blade, which helps:

  • Maintain straight tracking

  • Reduce blade drift

  • Improve cut accuracy

  • Minimize operator effort

This balance is especially important when making long, straight cuts that must remain uniform from start to finish.

Rugged Construction for Daily Jobsite Use

The FS400 LV is built to withstand demanding cutting environments. Its robust frame, protective blade guard, and durable components are designed to handle:

  • Wet cutting slurry

  • Abrasive concrete and asphalt dust

  • Frequent transport between jobsites

This makes the saw suitable for both occasional projects and daily professional use.

Cutting Capacity and Performance

Concrete Cutting Performance

The Husqvarna FS400 LV is widely used for cutting cured and reinforced concrete in:

  • Residential slabs

  • Commercial floors

  • Sidewalk panels

  • Garage and warehouse floors

When paired with the correct concrete diamond blade, the saw produces clean edges and consistent cutting depth across varying concrete mixes and aggregate types.

Asphalt Cutting Performance

Asphalt is highly abrasive and requires stable blade control. The FS400 LV performs effectively in:

  • Road and pavement repairs

  • Parking lot maintenance

  • Driveway resurfacing

  • Utility trench access

Using an asphalt-specific diamond blade allows faster cutting and helps extend blade life.

Precision Depth Control

Accurate depth control is essential for professional surface cutting. The Husqvarna FS400 LV features a smooth, responsive depth adjustment system that allows operators to:

  • Set precise cutting depths

  • Maintain uniform joint depth

  • Make fine adjustments during operation

This precision is especially valuable when cutting expansion joints, where consistent depth helps manage concrete movement and cracking.

Ergonomics and Operator Comfort

Low-Vibration Operation

The FS400 LV is designed to reduce vibration transmitted to the operator. Lower vibration:

  • Improves comfort during long cutting sessions

  • Enhances control and steering accuracy

  • Reduces operator fatigue

This makes the saw suitable for extended use on active jobsites.

Ergonomic Handle Design

The handle system provides a comfortable grip and natural steering position. Its layout allows operators to guide the saw smoothly while maintaining proper posture, contributing to safer and more efficient operation.

Integrated Wet Cutting System

The Husqvarna FS400 LV is designed primarily for wet cutting, which is the preferred method for both concrete and asphalt.

Benefits of wet cutting include:

  • Effective dust suppression

  • Blade cooling to prevent overheating

  • Extended diamond blade life

  • Cleaner, smoother cuts

Wet cutting also helps contractors meet silica dust regulations and improves overall jobsite safety.

Typical Applications of the Husqvarna FS400 LV

Expansion and Control Joint Cutting

One of the most common uses of the FS400 LV is cutting expansion and control joints in concrete slabs. The saw’s straight-line stability and precise depth control make it ideal for creating uniform joints that help prevent uncontrolled cracking.

Sidewalk, Curb, and Driveway Work

Municipal crews and residential contractors rely on the FS400 LV for:

  • Sidewalk panel replacement

  • Curb repairs

  • Driveway cutting and removal

Its compact size allows precise work without damaging surrounding surfaces.

Pavement and Asphalt Repair

For light-to-medium pavement repair, the FS400 LV offers the control needed for clean access cuts and defined patch boundaries.

Utility and Maintenance Projects

Utility contractors use the FS400 LV to create access points for:

  • Pipe installation

  • Conduit work

  • Electrical and communication lines

Its portability allows quick deployment and efficient operation.

Diamond Blade Selection for the FS400 LV

Choosing the correct diamond blade is essential to maximize performance and blade life.

Concrete Diamond Blades

For concrete cutting, select blades designed for:

  • Concrete hardness

  • Aggregate type

  • Reinforcement content

These blades provide optimized bond strength and durable segment design for consistent results.

Asphalt Diamond Blades

Asphalt blades typically feature:

  • Softer metal bonds

  • Wider gullets for debris removal

  • Improved cooling characteristics

These features are critical for cutting abrasive asphalt efficiently.

Blade Compatibility and Safety

Always ensure:

  • Blade diameter matches FS400 LV specifications

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

Proper blade selection ensures safe operation and optimal cutting performance.

Why Contractors Choose the Husqvarna FS400 LV

Reliable Professional Performance

Contractors trust the FS400 LV for its consistent results and dependable operation across a wide range of materials and jobsite conditions.

Easy Transport and Storage

Its compact footprint makes it easy to:

  • Load into trucks or trailers

  • Move between jobsites

  • Store in limited space

This is especially valuable for mobile service crews.

Precision Without Excessive Size

While larger floor saws offer deeper cutting capacity, the FS400 LV delivers the precision most surface-cutting jobs require without unnecessary bulk.

Maintenance and Long-Term Care

Proper maintenance keeps the Husqvarna FS400 LV operating at peak efficiency.

Recommended practices include:

  • Cleaning slurry and debris after each use

  • Inspecting the water delivery system

  • Checking blade condition and mounting hardware

  • Verifying fasteners and moving parts

  • Storing the saw in a dry, protected environment

Routine care helps extend service life and reduce downtime.

Safety Considerations

Operating the FS400 LV requires standard concrete cutting safety practices.

Operators should always wear:

  • Eye protection

  • Hearing protection

  • Respiratory protection when required

  • Gloves with good grip

  • Steel-toe footwear

Ensure blade guards and water systems are properly installed before operation.

Husqvarna FS400 LV Compared to Larger Floor Saws

The FS400 LV excels in situations where:

  • Space is limited

  • Precision matters more than maximum depth

  • Cuts are shallow to medium depth

  • Portability is a priority

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

Who Uses the Husqvarna FS400 LV?

The FS400 LV is commonly used by:

  • Concrete contractors

  • Asphalt repair crews

  • Municipal maintenance teams

  • Utility contractors

  • Property maintenance professionals

Its versatility makes it suitable for both specialized and general cutting tasks.

FAQs About Husqvarna FS400 LV

What is the Husqvarna FS400 LV used for?
It is used for cutting concrete and asphalt on flat surfaces such as slabs, sidewalks, and pavements.

Is the Husqvarna FS400 LV a walk-behind saw?
Yes. It is a compact walk-behind floor saw designed for straight horizontal cuts.

Can the FS400 LV cut asphalt?
Yes. With an asphalt-specific diamond blade, it performs very well on pavement and asphalt surfaces.

Does the FS400 LV support wet cutting?
Yes. It includes an integrated water system for dust control and blade cooling.

What type of projects is the FS400 LV best suited for?
It is ideal for residential, light commercial, municipal, and maintenance projects.

Is the FS400 LV easy to transport?
Yes. Its compact design allows easy loading, transport, and storage.

What blades can be used with the FS400 LV?
It supports a wide range of concrete and asphalt diamond blades within its size specifications.

Is the FS400 LV designed for professional use?
Yes. It is built specifically for professional contractors and demanding jobsite environments.

How accurate are cuts made with the FS400 LV?
The saw offers excellent straight-line tracking and precise depth control.

How long does the Husqvarna FS400 LV last?
With proper maintenance, it can deliver many years of reliable professional service.

Final Thoughts on the Husqvarna FS400 LV

The Husqvarna FS400 LV is a precision-focused, professional walk-behind floor saw built for dependable concrete and asphalt cutting. Its balanced design, smooth operation, and compact size make it an excellent choice for contractors who need accuracy, portability, and consistent performance on demanding jobsites. Whether cutting expansion joints, repairing pavement, or handling maintenance work, the FS400 LV delivers clean cuts, efficient workflow, and long-term value where it counts most.



Back to Diamond Blade