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Husqvarna Concrete Saw FS 400 LV

by Blades Admin

Husqvarna Concrete Saw FS 400 LV: Professional Walk-Behind Saw for Precise Concrete and Asphalt Cutting

The Husqvarna concrete saw FS 400 LV is a professional-grade walk-behind floor saw engineered for contractors who need accuracy, durability, and consistent performance when cutting concrete and asphalt. Designed for surface cutting applications rather than extreme depth, the FS 400 LV delivers clean, straight cuts with excellent control, making it a trusted choice for residential, commercial, and municipal projects.

Manufactured by Husqvarna, the FS 400 LV represents a balance between portability and cutting power. It is widely used for expansion joints, slab repair, sidewalk work, and pavement maintenance where precision matters more than oversized capacity.

What Is the Husqvarna FS 400 LV Concrete Saw?

The Husqvarna FS 400 LV is a walk-behind concrete saw built specifically for horizontal cutting on flat surfaces. Unlike large road saws intended for deep infrastructure cuts, this model focuses on maneuverability, balance, and predictable tracking. The “LV” designation highlights its smooth operation and low-vibration characteristics, which improve operator comfort and cut accuracy.

Common 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 operate efficiently in confined spaces while still delivering professional cutting results.

Design and Build Quality

Compact, Well-Balanced Chassis

One of the standout features of the Husqvarna FS 400 LV is its excellent balance. The saw is engineered to distribute weight evenly over the blade, which helps:

  • Maintain straight-line tracking

  • Reduce blade wander

  • Improve cut consistency

  • Lower operator fatigue

This balanced design is especially important for long, straight cuts where accuracy is critical.

Durable Construction for Jobsite Conditions

The FS 400 LV is built to withstand demanding environments. Its rugged frame, reinforced blade guard, and high-quality components are designed to handle:

  • Wet cutting slurry

  • Abrasive concrete and asphalt dust

  • Frequent transport between jobsites

This durability makes the saw suitable for both daily professional use and long-term ownership.

Cutting Performance and Capabilities

Concrete Cutting Performance

The Husqvarna FS 400 LV concrete saw is commonly 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, uniform depth, and smooth operation across varying concrete mixes and aggregate types.

Asphalt Cutting Performance

Asphalt is highly abrasive and demands stable blade control. The FS 400 LV performs well in:

  • Road and pavement repair

  • Parking lot maintenance

  • Driveway resurfacing

  • Utility trench access

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

Precision Depth Control System

Accurate depth control is essential for professional concrete cutting. The Husqvarna FS 400 LV features a smooth, responsive depth adjustment mechanism that allows operators to:

  • Set precise cutting depths

  • Maintain consistent joint depth

  • Make fine adjustments during operation

This level of control is particularly valuable when cutting expansion and control joints, where uniform depth helps manage concrete movement and reduce cracking.

Ergonomics and Operator Comfort

Low-Vibration Operation

The FS 400 LV is designed to minimize vibration transmitted to the operator. Reduced vibration:

  • Improves comfort during long cutting sessions

  • Enhances steering and control

  • Reduces operator fatigue

This makes the saw well-suited 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 FS 400 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 comply with silica dust regulations and improves overall jobsite safety.

Typical Applications of the Husqvarna FS 400 LV

Expansion and Control Joint Cutting

One of the most common uses of the FS 400 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 FS 400 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 FS 400 LV provides the control needed for clean access cuts and well-defined patch boundaries.

Utility and Maintenance Projects

Utility contractors use the FS 400 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 FS 400 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 FS 400 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 FS 400 LV Concrete Saw

Reliable Professional Performance

Contractors trust the FS 400 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 FS 400 LV delivers the precision most surface-cutting jobs require without unnecessary bulk.

Maintenance and Long-Term Care

Proper maintenance keeps the Husqvarna FS 400 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 Husqvarna FS 400 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 FS 400 LV vs Larger Concrete Saws

The FS 400 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 FS 400 LV?

The FS 400 LV concrete saw 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 Concrete Saw FS 400 LV

What is the Husqvarna FS 400 LV concrete saw used for?
It is used for cutting concrete and asphalt on flat surfaces such as slabs, sidewalks, and pavements.

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 an asphalt-specific diamond blade, it performs very well on pavement and asphalt surfaces.

Does the 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 suited for?
It is ideal for residential, light commercial, municipal, and maintenance projects.

Is the FS 400 LV easy to transport?
Yes. Its compact design allows easy loading, transport, and storage.

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

Is the FS 400 LV designed for professional use?
Yes. It is built specifically for professional contractors and demanding jobsite environments.

How accurate are cuts made with the FS 400 LV?
The saw offers excellent straight-line tracking and precise depth control.

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 Concrete Saw FS 400 LV

The Husqvarna concrete saw FS 400 LV is a precision-focused, professional walk-behind saw built for dependable concrete and asphalt cutting. Its balanced design, smooth operation, and compact size make it an excellent choice for contractors who value accuracy, portability, and long-term reliability. Whether cutting expansion joints, repairing pavement, or performing routine maintenance work, the FS 400 LV delivers clean cuts, efficient workflow, and consistent performance on demanding jobsites.



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