Husqvarna FS 524, FS 513, FS 520 Trouble Shooting Guide, Engine Will Not Start Cause Action

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TROUBLE SHOOTING GUIDE

Engine Will Not Start:

Cause

Action

Electrical switches not in correct position.

Check that BOTH Emergency Stop Switch (AA) and Engine

 

Start Switch (DD) (FS 513) are in “ON” position. Emergency

 

Stop Switch (AA) should be pulled outward from cowl, and

 

Engine Start Switch (DD) turned to “1” (ON) position.

Fuel valve closed.

Open the fuel valve.

Choke valve open.

Close the choke with cold engine.

Fuel tank empty.

Fill with fuel.

Contamination, or water ice in fuel system.

Clean tank, fuel lines and carburetor. Fill tank with fresh fuel.

Buildup on spark plug electrodes.

Check electrode gap and clean.

Engine has no power or runs unevenly. Air filter Clogged.

Clean or replace the air filter.

Diamond Blade Trouble Shooting:

Problem

Cause & Action

Loss of Tension in Diamond Blade

Blade being used on misaligned saw. Check for proper saw alignment.

 

Blade is excessively “hard” for material being cut, creating stress on steel blade

 

center. Check that blade is correct for material being cut.

 

Different diameter or undersize blade flanges creates uneven pressure on blade

 

center. Use proper size flange on each side of blade. Never use worn or dam-

 

aged flanges.

 

Blade operated at improper speed (R.P.M.). Make certain blade shaft is turning at

 

the proper speed (R.P.M.) for blade size. Check R.P.M. using a tachometer.

 

Blade improperly mounted on arbor. Could become bent when flanges are tight-

 

ened.

Segment Loss

Blade is too “hard” for material being cut. Use “softer” blade specification.

 

Overheated blade, detected as “blue” color on steel center. Check that water

 

supply is adequate and not blocked.

 

Saw is twisted while cutting. Saw only in a straight line.

 

Blade Bore is worn to an eccentric shape (ovalized). Replace worn blade and

 

worn spindle.

 

Segment knocked off during mounting our transport. Avoid rough handling of

 

diamond blade. Never transport the machine with the diamond blade mounted.

Cracked Blade Core

Blade is too “hard” for material being cut. Use “softer” blade specification.

 

Overheated blade, detected as “blue” color on steel center. Check that water

 

supply is adequate and not blocked.

 

Saw is twisted while cutting. Saw only in a straight line.

 

 

 

WARNING!

 

 

 

 

DO NOT use damaged diamond blades!

 

 

 

 

Death or injury could occur if machine is op-

 

 

 

 

erated using damaged diamond blades!

 

 

 

 

 

 

 

 

 

 

 

Cracked Blade Segments

Blade is too “hard” for material being cut. Use “softer” blade specification.

 

Blade operated at improper speed (R.P.M.). Make certain blade shaft is turning at

 

the proper speed (R.P.M.) for blade size. Check R.P.M. using a tachometer.

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Contents FS 513, FS 520, FS Page Contents and Introduction Symbols and Decals Symbols and Decals Symbols and Decals Symbols and Decals 543 04 57-88SOUND Level 108dBA Safety Instructions General useCalifornia Prop 65 Warning General Information Poison Exhaust GASDO’s and do NOT’s Safety Instructions Safety FirstDo not Page Water Tank / Lifting Point Support Holds Water Tank Parts Identification What is WhatDD. Engine Start Switch AAA BBB Assembly Install Front Pointer a Blade Guard Front DRe-Position Blade Depth Control Handle EE Torque Lifting Eye NUT to 83 N-m 61 lb-ft mini Mum Install Water Tank P if equippedAssembly Filling Water Tank Operation Before OperationRe-Locating the Blade Guard C If Required Transporting & Lifting Machine Parking Brake Engage See DiagramLifting machine equipped with Water Tank Parking MachineParking Brake Dis-engage See Dia gram FS 520, FSGasoline Engine Models All ModelsFitting the Diamond Blade H Starting and cutting with machine Starting FSFS 520 / FS 524 Remove Fuel in Engine Extended Periods of Non-Operation Two Weeks or GreaterMaintenance & Lubrication FS 520 / FSReplacing Engine Air Filter S FS 520 / FS Engine Oil Checking Engine OilChanging Engine Oil Battery Maintenance FS 520 / FSModel Blade Shaft Engine Governor SpeedHydrostatic Transmission Service of Hydrostatic Transmission TT MainteBelt and Sheave Wear Hydrostatic Transmission Belt WW Belt TensionTrouble Shooting Guide Diamond Blade Trouble Shooting Problem Cause & ActionEngine Will Not Start Cause Action Wiring Diagram FS QTY Description Wiring Diagram FS SWITCH, ENG. OIL LEVEL, Honda Wiring Diagram FS Technical Data Sound LevelModel Maximum Vibration Aeq in m/s Maximum Exposure Time Blade Size Maximum Blade Cutting Depth ModelModel Nominal Maximum Mass-kg lbs Accessories Husqvarna Construction Products North America Conformity CertificatesConstruction Products, North America Corporate Office Contact Information542 20

FS 520, FS 513, FS 524 specifications

Husqvarna, a renowned name in outdoor power equipment, offers a robust range of walk-behind floor saws designed for professionals and contractors. Among their offerings, the FS 524, FS 513, and FS 520 stand out as exceptional choices, each possessing unique features and technologies that cater to a variety of concrete cutting needs.

The Husqvarna FS 524 is designed for medium-sized jobs and is known for its efficiency and user-friendliness. This model features a powerful engine that delivers consistent performance while minimizing fuel consumption. The FS 524 is equipped with a hand-lever locking for cutting depth, ensuring precision during operation. Its unique design allows for easy transportation and setup, making it ideal for contractors who move between job sites frequently. Moreover, its foldable handlebars enhance compact storage, further improving mobility.

Next in line, the FS 513 is recognized for its compact design and versatility. Engineered for homeowners and small businesses, the FS 513 features a lightweight yet durable construction that doesn't sacrifice performance. With an adjustable depth control and quick-release blade guard, operators can easily change blades and adjust depths without extensive downtime. The robust engine ensures ample power while the vibration-dampening system provides a comfortable experience, reducing operator fatigue over long periods of use.

The FS 520 is a yet more powerful option, suited for larger projects requiring enhanced cutting depth and efficiency. It features the advanced SmartGuard technology, which enhances safety by automatically adjusting the cutting depth based on the blade utilized. The high-performance engine partnered with premium blades allows for deep cuts and efficient material removal, ideal for roadwork and large-scale repairs. The FS 520 also includes a user-friendly control panel that provides easy access to essential functions, ensuring an optimal cutting experience.

All three models utilize Husqvarna’s proprietary technologies, including their state-of-the-art blade cooling system that reduces wear and increases blade life. The ergonomic designs across the FS series help improve operator comfort and control, making these saws suitable for extended periods of use. In summary, the Husqvarna FS 524, FS 513, and FS 520 offer unmatched reliability, performance, and advanced features that empower professionals to tackle concrete cutting projects with confidence and precision.
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