Operator’s manual
Read these instructions carefully and make sure
you understand them before using the machine.
FS 513,
FS 520,
FS 524
ꢁ
CONTENTS and INTRODUCTION
Contents
Section
Page
WARNING!
Contents & Introduction................................................ 3
Symbols and Decals....................................................4-8
Safety Instructions.....................................................9-12
Parts Identification (What Is What).........................14-16
Assembly................................................................. 17-21
Operation ................................................................ 22-27
Maintenance & Lubrication ................................... 28-32
Trouble Shooting Guide............................................... 33
Wiring diagram........................................................ 34-38
Technical Data......................................................... 39-40
Accessories.................................................................. 41
Conformity Certificates.................................................42
Contact Information.......................................................43
Before operating machine, read and under-
stand this entire operation manual & engine
operation manual supplied with engine.
Be familiar with machine before operation!
Model Identification: Record machine serial number
plate information below for future reference
Introduction
Thank you for purchasing your new machine from Husqvar-
na Construction Products. We have provided important
safety messages in this manual and on the machine.
Please read these messages carefully. A safety message
alerts you to potential hazards that could hurt you or oth-
ers. Each safety message is preceded by a symbol or the
safety alert symbol ( ) and one of two words, WARNING,
or CAUTION.
A. Model:______________________________________
B. Machine Serial No:____________________________
C. Year of Manufacture ___________________________
D. Mass of Machine (kg) __________________________
E. Engine Power (KW) ___________________________
F. Blade Diameter (mm) __________________________
G. Blade Speed (Revolutions / Minute) _______________
H. Electric Motor Voltage (If Equipped) _______________
I. Electric Motor Phase (If Equipped) _________________
J. Electric Motor Amperage (if Equipped) _____________
Other information not shown on machine serial plate:
These signal words mean:
WARNING: Indicates a hazardous situation which,
if not avoided COULD result in death or serious injury.
CAUTION: Indicates a hazardous situation, which,
if not avoided, COULD result in minor or moderate injury.
It may also be used to alert against unsafe practices.
Each message tells you what the hazard is, what can hap-
pen, and what you can do to avoid or reduce injury. Other
important messages are preceded by the word NOTICE.
NOTICE means:
NOTICE: Indicates a hazardous situation which, if not
avoided, could result in property damage. Your machine
or other property can be damaged if you don’t follow this
instruction.
The safety labels should be periodically inspected and
cleaned by the user to maintain good legibility at a safe
viewing distance. If the label is worn, damaged, or is illeg-
ible, it should be replaced.
Engine Serial No: _______________________________
See Engine Operation Manual for location.
Purchase Date:_________________________________
ꢂ
SYMBOLS and DECALS
Please read the instructions for use prior to
operating the machine for the first time.
Emergency Shutdown, Transmission Stop
Use In Well Ventilated Area
This symbol indicates that the machine is in
conformance with the applicable European
directive.
Do Not Use In Flammable Areas
Mandatory
Machinery Hazard, Keep hands and Feet
Clear.
Indication
Muffler Hot. May Cause Burns and / or
Ignition of Material. Avoid Contact.
Prohibition
Danger, Poison Exhaust Gas
No Non-working Personnel In Area
No Smoking
Warning Triangle
Wear Eye Protection
Wear Breathing Protection
The use of hearing protection is mandatory
Wear Head Protection
Wear Safety Shoes
Wear Appropriate Clothing
Do Not Operate Without Blade Guard in
Place
Always Keep All Guards In Place
Water Supply On
Water Supply Off
Water Supply
Remove the blade prior to Hoisting, Loading,
Unloading and Transporting the Machine.
ꢃ
SYMBOLS and DECALS
Blade Water Safety Switch
Engine Coolant Temperature
Electrical Switch-Start
Repairs Are To Be Done By An Authorized
Dealer Only
Keep Work Area Clean/Well Lit, Remove All
Safety Hazards
Headlight
Dangerously High Noise Level
Diamond Blade
Blade Diameter
Blade Engagement
Pulley diameter
Pay Extreme Attention to The Care And
Protection Of The Machine Before Starting Up
Remove Tools From Area and Machine
Engine Oil Pressure
Oil Required
Number of Revolutions Per Minute, Rota-
tional Speed
Dipstick, Maintain Proper Oil Level
Lubrication Point
Blade Flange Diameter
Blade Depth Stop
High Speed
Cutting Depth Indicator – Depth of Cut
Parking Brake
Low Speed
Electrical Switch-Off
Electrical Switch-On
Parking Brake Applied
Parking Brake Released
ꢄ
SYMBOLS and DECALS
Engine Stop
Machine Mass (Kilograms)
Positive Battery Terminal
Blade Depth Indicator – Zero
Electric Motor
Engine Start
Engine Run
Disengage to Start Engine
(Neutral Start)
Engine
Stop Engine and En-
gage Transmission to
Engage Parking Brake
Engine Speed Revolutions/Minute
Engine Start
Unleaded Fuel Only
ꢅ
SYMBOLS and DECALS
P/N ꢄꢃꢁ ꢀ9 0ꢆ-08 (ꢁ)
Location: Left and Right Side of Cowl
(FS ꢄꢀꢂ Only)
P/N ꢄꢃꢁ ꢀ9 0ꢆ-ꢂꢂ
Location: Front of Cowl
P/N ꢄꢃꢁ ꢀ9 0ꢆ-09 (ꢁ)
Location: Left and Right Side of Cowl
(FS ꢄꢁ0 Only)
P/N ꢄꢃꢂ 8ꢄ 00-ꢂꢆ
“Blade Guard Arrow (FS ꢄꢁꢃ - ꢅ00mm Only)
Top of Rear Blade Guard
(ꢅ00 mm FS ꢄꢁ0-FS ꢄꢁꢃ Only)
P/N ꢄꢃꢁ ꢀ9 0ꢆ-ꢀ0 (ꢁ)
Location: Left and Right Side of Cowl
(FS ꢄꢁꢃ Only)
P/N ꢄꢃꢁ ꢀꢅ ꢆꢁ-98 (ꢁx)
Location: Left and Right Side of Blade Guard
(FS ꢄꢀꢂ, ꢄꢁ0 Only)
P/N ꢄꢃꢁ ꢀ9 0ꢅ-ꢃꢅ Local Service
Location: Side of Frame
P/N ꢄꢃꢁ ꢀ9 0ꢄ-89
Location: Depth Gauge
ꢆ
SYMBOLS and DECALS
P/N ꢄꢃꢁ ꢀꢅ 90-ꢅꢄ
Location: Top of Belt Guard
P/N ꢄꢃꢁ ꢀ9 0ꢄ-9ꢂ
Location: Rear of Cowl
P/N ꢄꢃꢁ ꢀ9 0ꢅ-ꢂꢅ
Location: Top of Cowl, FS ꢄꢁ0, FS ꢄꢁꢃ
P/N ꢄꢃꢁ ꢀ9 0ꢅ-ꢀꢆ
Location: Water Tank (If Equipped)
P/N ꢄ0ꢁ ꢁꢃ 0ꢀ-0ꢀ
Location: Top of Cowl, FS ꢄꢀꢂ
P/N ꢄꢃꢁ ꢀ9 0ꢅ-ꢂ8
Location: Rear of Cowl
P/N ꢄꢃꢂ 0ꢃ ꢄꢆ-88 SOUND LEVEL - 108dBA
Location: Upper RH Frame
P/N ꢄꢃꢁ ꢀꢅ ꢀꢁ-ꢂꢄ PATENT PENDING
Location: Upper RH Frame
8
SAFETY INSTRUCTIONS
General use
Fuel Safety:
WARNING! Take care when handling
fuel. Bear in mind the risk of fire, explo-
sion and inhaling fumes.
WARNING!
Before operating machine, read and under-
stand this entire operation manual & engine
operation manual supplied with engine.
• Only store fuel in containers approved for the purpose.
• Only refuel machine with engine OFF. Never remove fuel
cap and fill the fuel tank while the engine is running.
• Always refuel in a well ventilated area.
Be familiar with machine before operation!
• Never fill a fuel tank indoors.
• Allow engine to cool before refueling.
Operator must wear
personal protective
equipment & cloth-
ing appropriate to the
work he is doing.
Never fuel machine in vicinity of sparks or
flames. Do not use machine in flammable
area.
Personal protective
equipment, such as
hearing & eye protec-
tion, is mandatory.
Do not smoke while fueling or using the
machine.
• Move machine ꢀ0 feet (ꢂ meters) from refueling point
before starting engine.
• Never start the machine:
The working area must be completely
clear, well lit and all safety hazards
removed.
ꢀ) If fuel has been spilled on the machine. Wipe
off spillage and allow remaining fuel to evaporate.
Any persons not involved in the work,
should leave the area.
ꢁ) If you have spilled fuel on yourself or your
clothes. Use soap and water to wash any part of
your body that has come in contact with fuel.
ꢂ) If the machine is leaking fuel. Check regularly
for leaks from the fuel cap and fuel lines.
• Store and transport machine and fuel so that there is
no risk of any leakage or fumes coming into contact with
sparks or flames, for example, electrical machinery or
electric motors, electrical relays / switches, or boilers.
WARNING! Do not contact the tool when
machine is in operation.
DUST WARNING
Cutting, especially when DRY cutting, generates dust that comes from the material being cut, which
frequently contains silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous other
minerals and rocks. Exposure to excessive amount of such dust can cause:
•
Respiratory diseases (affecting your ability to breath), including chronic bronchitis, silicosis and pulmo-
nary fibrosis from exposure to silica. These diseases may be fatal;
Skin irritation and rash; and
•
•
Cancer according to NTP* and IARC*
* National Toxicology Program, International Agency for Research on Cancer
Take precautionary steps
•
•
•
Avoid inhalation of and skin contact with dust, mist and fumes;
Wet cut when feasible, to minimize dust;
Wear and ensure that all bystanders wear appropriate respiratory protection such as dust masks de-
signed to filter out microscopic particles. (See OSHA 29 CFR Part 1910.1200)
California Prop 65 Warning:
Use of this product can cause exposure to materials known to the State of California to cause cancer and/or birth
defects or other reproductive harm.
9
SAFETY INSTRUCTIONS
WARNING
POISON EXHAUST GAS
THIS SAW IS SHIPPED FROM THE FACTORY WITHOUT A CATALYTIC CONVERTER.
THE ENGINE PRODUCES CARBON MONOXIDE EXHAUST EMISSIONS AND IS NOT SAFE FOR USE IN
ENCLOSED AREAS. USE OF A CATALYTIC CONVERTER REDUCES THE CARBON MONOXIDE EXHAUST
EMISSIONS, BUT STILL IS NOT SAFE FOR USE IN ENCLOSED AREAS.
USE ONLY IN WELL-VENTILATED AREAS. WORK SITE AIR QUALITY MUST COMPLY WITH
OSHA ꢁ9 CFR ꢀ9ꢀ0.ꢀ000 PER TABLE Z-ꢀ, LIMITS FOR AIR CONTAMINANTS.
MONITOR WORKSPACE AIR QUALITY TO INSURE COMPLIANCE. FAILURE TO COMPLY WILL RESULT IN
DANGER TO LIFE AND CAUSE PERMANENT INJURY OR DEATH.
General Information
Carbon monoxide (CO) has the distinction of being one of the few commonly encountered industrial gasses that is
both highly toxic (poison) and odorless. When inhaled, CO acts as a chemical asphyxiant by preferentially combin-
ing with hemoglobin in the blood stream. As a result, the hemoglobin is not able to transport its normal amount of
oxygen, which results in under-oxygenation of tissues. Symptoms of low-level CO exposure include headaches,
dizziness, confusion, and nausea. However, loss of consciousness, permanent injury and death may result
from continued or more intense exposure. Because of the health hazards associated with CO inhalation, the Oc-
cupational Safety and Health Administration (OSHA) have imposed personal exposure limits. The OSHA exposure
limits, which are specified in the 29 CFR 1910.1000 (1998 Revision), allow for a 200 PPM Ceiling Limit and a TWA
of ꢂꢄ PPM per 8-hour shift/ꢃ0-hr workweek. It is strongly recommended that the OSHA ꢁ9 CFR ꢀ9ꢀ0.ꢀ000 (Code
of Federal Regulations) be consulted for more information on exposure limits for various hazardous materials. If CO
Poisoning is suspected immediately remove the victim to fresh air and obtain emergency medical attention.
Proper Ventilation:
THIS SAW IS SHIPPED FROM THE FACTORY WITHOUT A CATALYTIC CONVERTER. It is important to be aware
that saws with catalytic converters reduce CO and hydrocarbon (HC) emissions. The exhaust still contains CO. If the
workspace is too confined or under-ventilated, CO may accumulate until it eventually exceeds OSHA limits. When
this happens, action must be taken to remove workers from areas of high concentration. Operators and work area
supervisors should take precautions to insure adequate ventilation of the workspace at all times. Carbon monoxide
detection monitors should be used to determine that adequate ventilation exists.
WARNING
HEARING HAZARD
DURING NORMAL USE OF THIS MACHINE, OPERATOR MAY BE EXPOSED TO A NOISE
LEVEL EQUAL TO 85 dB (A) OR GREATER. TEMPORARY AND/OR PERMANENT DAMAGE TO HEARING
MAY RESULT. HEARING PROTECTION REQUIRED.
ꢀ0
SAFETY INSTRUCTIONS
SAFETY FIRST!
WARNINGS
DO’s AND DO NOT’s
WARNING: FAILURE TO COMPLY WITH THESE WARNINGS AND OPERATING
INSTRUCTIONS COULD RESULT IN DEATH OR SERIOUS BODILY INJURY.
DO
DO Read this entire operator’s manual before operating this machine. Read and understand all warnings, instruc-
tions, controls, and symbol definitions contained in this manual, and on the machine.
DO always give a copy of this manual to the equipment user. If you need extra copies, call TOLL FREE
ꢀ-800-ꢁ88-ꢄ0ꢃ0 in USA, or +ꢀ-9ꢀꢂ-9ꢁ8-ꢀꢂ00 for International, or see “contact information” section of this
manual.
DO keep all guards in place and in good condition.
DO wear safety approved hearing, eye, head and respiratory protection.
DO read and understand all warnings and instructions on the machine.
DO keep all parts of your body away from the blade and all other moving parts.
DO know how to stop the machine quickly in case of emergency.
DO shut off the engine and allow it to cool before refueling or doing maintenance.
DO inspect the blade, flanges and shafts for damage before installing the blade.
DO use the blade flange size shown for each blade size.
DO use only steel center diamond blades manufactured for use on concrete saws.
DO use only the blade flanges supplied with the saw. Never use damaged or worn blade flanges.
DO use only blades marked with a maximum operating speed greater than the blade shaft speed. Verify speed by
checking blade shaft rpm and pulley diameters and blade flange diameters.
DO verify saw drive configuration by checking blade shaft RPM, pulley diameters, and blade flange diameter.
DO read all safety materials and instructions that accompany any blade used with this machine.
DO inspect each blade carefully before using it. If there are any signs of damage or unusual wear, DO NOT USE
THE BLADE.
DO mount the blade solidly and firmly, Wrench tighten the arbor nut.
DO make sure the blade and flanges are clean and free of dirt and debris before mounting the blade on the saw.
DO use the correct blade for the type of work being done. Check with blade manufacturer if you do not know if
blade is correct.
DO use caution and follow the instructions when loading and unloading the machine.
DO operate this machine only in well ventilated areas. Breathing Poison Exhaust Gas could result in death.
DO instruct bystanders on where to stand while the machine is in operation.
DO establish a training program for all operators of this machine.
DO clear the work area of unnecessary people. Never allow anyone to stand in front of or behind the blade while
the engine is running.
DO make sure the blade is not contacting anything before starting the engine.
DO use caution when lifting and transporting this machine.
DO always tie down the machine when transporting.
DO use caution and follow instructions when setting up or transporting the machine.
DO have all service performed by competent service personnel
DO verify the blade arbor hole matches the machine spindle before mounting the blade.
DO always check for buried hazards, such as electrical or gas lines before sawing. Always contact local utilities
before operation in unknown areas.
DO move the machine at least ꢀ0 feet (ꢂ meters) from the fueling point before starting the engine and make sure
the fuel cap is on the machine and properly tightened.
DO lift machine only from specified lifting point.
DO clean the machine after each day’s use.
DO use the proper blade flange size for each blade size. Never use damaged or worn blade flanges.
DO use caution when handling fuel.
DO only cut in a straight line, and only saw as deep as the job specifications require.
ꢀꢀ
SAFETY INSTRUCTIONS
SAFETY FIRST!
WARNINGS
DO’s AND DO NOT’s
WARNING: FAILURE TO COMPLY WITH THESE WARNINGS AND OPERATING
INSTRUCTIONS COULD RESULT IN DEATH OR SERIOUS BODILY INJURY.
DO NOT
DO NOT operate this machine unless you have read and understood this operator’s manual.
DO NOT operate this machine without the blade guard, or other protective guards in place.
DO NOT stand behind or in front of the blade path while the engine is running.
DO NOT leave this machine unattended while the engine is running.
DO NOT work on this machine while the engine is running.
DO NOT operate this machine when you are tired, fatigued or under the influence of drugs or alcohol.
DO NOT use a wet blade without adequate water supply to the blade.
DO NOT exceed maximum blade speed shown for each blade size. Excessive speed could result in blade
breakage.
DO NOT operate the machine if you are uncertain of how to run the machine.
DO NOT use damaged equipment or blades.
DO NOT touch or try to stop a moving blade with your hand.
DO NOT cock, jam, wedge or twist the blade in a cut.
DO NOT transport a cutting machine with the blade mounted on the machine.
DO NOT use a blade that has been dropped or damaged.
DO NOT use carbide tipped blades.
DO NOT touch a dry cutting diamond blade immediately after use. These blades require several minutes to cool
after each cut.
DO NOT use damaged or worn blade flanges.
DO NOT allow other persons to be near the machine when starting, refueling, or when the machine is in
operation.
DO NOT operate this machine in an enclosed area. Breathing Poison Exhaust Gas could result in death.
DO NOT operate this machine in the vicinity of anything that is flammable. Sparks could cause a fire or an
explosion.
DO NOT allow blade exposure from the guard to be more than ꢀ80 degrees.
DO NOT operate this machine with the belt guards or blade guard removed.
DO NOT operate this machine unless you are specifically trained for its operation.
DO NOT use a blade that has been over heated (Core has a bluish color).
DO NOT jam material into the blade.
DO NOT grind on the side of the blade.
DO NOT tow this machine behind a vehicle.
DO NOT operate this machine with the any guards or shields removed.
DO NOT cut deeper than ꢀ” per pass with a dry blade. Step cut to achieve deeper cuts.
DO NOT operate this machine while under the influence of drugs or alcohol.
*****************
This saw was designed for certain applications only. DO NOT modify this saw or use for any application other
than for which it was designed. If you have any questions relative to its application, DO NOT use the saw until
you have written Husqvarna Construction Products and we have advised you.
Husqvarna Construction Products North America
17400 West 119th Street, Olathe, Kansas 66061 USA
ꢀꢁ
NOTES
ꢀꢂ
PARTS IDENTIFICATION (WHAT IS WHAT)
A. Front Pointer: Use to Guide machine in a straight line.
O. Lifting Point: Lift machine only from this point!
B. Guide Wheel: On Front Pointer (A). Align to cutting
line and Blade (H) to produce straight cuts.
P. Water Tank (If Equipped): ꢁꢄ Liter (ꢅ.ꢅ U.S. Gallon)
water capacity. Fill only with water! Do not fill with gaso-
line or other flammable substances! Use only for dust
suppression when cutting dry. Use only with laser welded
(dry) Diamond Blades (H).
C. Blade Guard: Covers Blade (H). Must always be in
place when operating machine! Note tool direction as
marked on guard with an arrow.
Q. Engine Starting Rope (FS 513 Only): Use to start
engine. See engine operation manual.
D. Blade Guard Front: Part of Blade Guard. Can be
raised to install Blade (H).
R. Fuel Tank: Fuel fill point.
E. Blade Guard Rear Bolt: Holds Blade Guard (C) in
position. Must be removed and relocated if Blade Guard
(C) is moved.
FS 520 / FS 524: Located at rear of machine. Fuel
fill is located on Left hand side of fuel tank.
F. Blade Guard Latch Plate: Covers Outer Flange (J).
FS 513: Located on engine - See engine operation
manual.
G. Water Hose Disconnect (G): Connects Blade Guard
(C) to Water Control Valve (KKꢀ, KKꢁ) or Water Tank (P).
Can be used when Blade Guard (C) is mounted to left or
right side of machine
S. Engine Air Cleaner (FS 513 Shown): Check daily.
Clean every four (ꢃ) hours if cutting in dusty conditions.
See engine operation manual and maintenance section of
this document.
H. Blade: Tool that cuts asphalt or concrete material – not
included with machine.
T. Blade Shaft Wrench (27mm): Use for installing and
removing Blade (H). Store in Tool Compartment (BB).
I. Inner Flange: Arbor on which the Blade (H) is mounted.
Replace if Damaged or worn.
U. Wrench (13mm): Use for many maintenance items on
machine. Store in Tool Compartment (BB).
J. Outer Flange: Used to hold Blade (H) in position.
Contains Locking Pin (K) that must go through Blade (H).
Replace if damaged or worn.
V. Front Cover: Clips to Water Tank Support (N). Open
to turn Engine Start Switch (DD) ON (ꢀ) or OFF (0) [FS
ꢄꢀꢂ Only].
K. Locking Pin: Holds Blade (H) in position. Replace if
Damaged or worn.
W. Shaft Guard: Protects Inner Flange (I). Always in-
stalled on opposite side of frame to Blade Guard (C).
L. Blade Shaft Nut (L1 / L2): Holds Outer Flange (J) to
machine. Nut (L1) on right side of machine has Left Hand
threads. Nut (L2)(not shown) on left side of machine has
Right Hand threads.
X. Depth Control Grease Fitting: Not Shown. See Main-
tenance section of this document.
Y. Blade Guard Mounting Spade: Holds Blade Guard
M. Blade Arbor: Blade (H) mounts on this surface.
(C) in position.
N. Water Tank / Lifting Point Support: Holds Water Tank
Z. Engine Oil Dipstick: Use to check engine oil level (Not
(P). Supports Lifting Point (O).
ꢀꢃ
Shown – See Operation Section of this document).
PARTS IDENTIFICATION (WHAT IS WHAT)
HH. Engine Tachometer (RPM): Shows engine speed in
AA. Emergency Stop Switch: Depress Switch to STOP
engine in emergencies. Reset by pulling outward (pull up)
to allow re-starting of machine.
revolutions per minute if engine is running. Shows total
operation time when engine is OFF (“0”). Total operation
time shown in minutes from 0-ꢄ9 minutes, and hours for
ꢅ0+ minutes.
BB. Tool Compartment: Contains Operation Manual,
Parts List, & two wrenches (T & U) (ꢀꢂmm & ꢁꢆmm).
Open by turning knob ꢀ80 degrees. Always return Opera-
tion Manual to this area for future reference.
II. – – –
JJ. Rear Handle: Operator position is behind machine
with both hands on Rear Handle. Handle is adjustable to
several positions.
CC. Engine Throttle: Controls Engine speed (RPM).
Push forward to increase engine speed. Pull backwards
to decrease engine speed. All sawing is done at maxi-
mum engine speed.
KK1. Water Control Valve: Controls water flow to blade.
Located on Left side of machine, near Rear Handle (JJ).
Not used with the water tank (if equipped).
DD. Engine Start Switch:
FS 513: Located on engine, behind Front Cover (V). Must
be ON (ꢀ) to start engine. Use to turn engine OFF (“0”) in
non-emergency situations.
FS 520 & FS 524 (Electric Start): A key switch located
on lower left side of console. Turn key clockwise to start
engine.
KK2. Blade Guard Water Control Valve: Controls the
water flow to the blade. Located on blade guard. Used
with water tank (if equipped).
LL. Belt Guard (Not Shown): Covers engine drive belt.
MM. Belt Drive Idler: Used to hold tension on Blade
Shaft Drive Belt.
EE. Blade Depth Control: Turn Counter-Clockwise to
raise Diamond Blade (H) and Clockwise to lower Diamond
Blade (H).
NN. Oil Drain Hose: Use to remove oil from engine.
OO. Parking Brake (EU units): Used to hold machine
in parked position. With engine OFF (0), apply the brake
by moving Transmission Engagement Lever (PP), to the
“Engaged” position. Move lever to dis-engaged position
before starting engine!
FF. Blade Depth Stop: To Lock Blade Depth Control (EE)
in position. Pull Blade Depth Stop toward rear of machine
and turn 90 degrees to lock in open position.
GG. Blade Depth Indicator: Shows cutting depth of Dia-
mond Blade (H) in centimeters (orange color) and inches
(white color). Operation: With engine OFF (“0”), lower
Diamond Blade (H) until in contacts the cutting surface.
Rotate Blade Depth Indicator to align “0” with arrows.
Raise Saw. When saw is lowered into cut, current cutting
depth is shown.
PP. Transmission Engagement Lever: MUST BE in
rear (dis-engaged) position to start engine for FS ꢄꢁ0 and
FS ꢄꢁꢃ (Neutral Start function). Push forward to engage
transmission. Push rearward to dis-engage transmission.
With transmission dis-engaged, machine can be moved
with engine turned OFF (0). See “OO. Parking Brake”
for additional information.
ꢀꢄ
PARTS IDENTIFICATION (WHAT IS WHAT)
QQ. Travel Speed Lever: Controls ground travel speed
UU. Transmission Drive Tensioner Belt: Connects
Engine to Transmission Drive Belt Tensioner (VV). Check
periodically for wear on belt and sheaves.
and direction of machine (forward or reverse). Move
lever forward to travel forward. Move lever rearward to
travel backward. Lever MUST be near “STOP” position
before moving Transmission Engagement Lever (PP) into
“Engaged” position.
V V. Transmission Drive Tensioner: Used to tension
Transmission Drive Belt (UU). See maintenance section
of this document for more information.
RR. Starting Battery (FS 520, FS 524 Only): Located
behind lower access panel at the rear of machine. See
“Battery Maintenance” section of this document for in-
structions on charging and maintenance.
WW. Hydrostatic Transmission Belt: Drives Hydrostatic
Transmission (TT). Connects Transmission Drive Belt
Tensioner (VV) to Hydrostatic Transmission (TT). See
maintenance section of this document for more informa-
tion.
SS. Fuel Shut-Off Valve: Used to shut off fuel supply to
engine.
XX. Lower Access Panel: Open panel to expose Starting
FS 520 / FS 524: Located behind lower access
door at rear of machine. Turn counter-clockwise to
close.
Battery (RR) and Fuel Shut-Off Valve (SS).
YY. Bladeshaft Drive Belt: Connects Engine and Blade-
shaft. See maintenance section of this document for
more information.
FS 513: Located on engine (see engine operation
manual for more information).
ZZ. Hydrostatic Transmission Belt Tensioner: Spring
loaded idler used to tension Hydrostatic Transmission
Belt (WW). See maintenance section of this document for
more information.
TT. Hydrostatic Transmission: Controls travel speed
and direction of machine. Maintenance free for the life of
the machine.
AAA. --
BBB. --
ꢀꢅ
ASSEMBLY
Assemble the following items before operating machine
for the first time.
Re-Position Rear Handle (JJ): Rear Handle (JJ) is
shipped in storage position shown. It must be reposi-
tioned to use the machine.
ꢀꢆ
ASSEMBLY
Install Front Pointer (A):
ꢀ. Using screws, washers and nuts installed in the Front
Pointer (A), install onto tube frame of Water Tank Support
(N). Adjust locking nuts to allow Pointer (A) to pivot freely.
ꢁ. Route pointer rope to avoid hot surfaces. Two loops in
rope allow attachment to Rear Handle (JJ).
Note: “Single Pointer” (A) shown. Some regions have
“Dual Pointer” as standard equipment. For all regions,
Dual Pointer is available as an accessory. See “accesso-
ries” section of this document, or spare parts list for more
information.
Blade Guard Front (D):
WARNING!
ꢀ. Using ꢀꢂmm Wrench (U) provided, remove two (ꢁ) M8
screws located in front of and below Blade Guard Latch
Plate (F), and the M8 screw in Blade Guard Front (D) [as
indicated by arrows]. Lossen, but do not remove, remain-
ing screw Blade Guard Latch Plate (F). Rotate Blade
Guard Latch Plate (F), and Blade Guard Front (D) down-
ward.
Blade Guard Latch Plate
(F) Must Be Installed
before operation. Failure
to Install before operating
machine could create a
Hazardous situation!
Always keep all guards
in place when operating
machine!
ꢁ. Reinstall three (ꢂ) M8 screws in Blade Guard Latch
Plate (F) as shown in the diagram at the right. Use the
ꢀꢂmm Wrench (U) (supplied) to securely tighten the four
(ꢃ) M8 bolts that hold the Blade Guard Latch Plate (F) in
position.
Re-Position Blade Depth Control Handle (EE):
Pull outward on Blade Depth Control Handle (EE) and
rotate 90 degrees until is snaps in position shown.
ꢀ8
ASSEMBLY
Install Water Tank (P) (if equipped):
• A factory installed water tank is available in some
regions. An optional water tank kit is available for all
regions.
• If water tank was previously installed on machine, read
these instructions to verify that installation is correct. Fol-
low all WARNINGS for installation and use of the Water
Tank.
• Verify the contents of the Water Tank Kit See Diagram at
right.
ꢀ. FS 513 Only: Temporarily remove the right hand (same
side of machine as engine starter rope) NUT from Lifting
Eye (O). See diagram at right.
ꢁ. FS 513 Only: Install CLAMP supplied in Water Tank Kit
(P), and then reinstall the NUT. See diagram at right.
ꢂ. FS 513 Only: Torque as specified below, and diagram
at right.
NOTICE
Torque Lifting Eye NUT to 83 N-m (61 lb-ft) mini-
mum.
WARNING!
Torque NUT as specified, else failure of LIFTING EYE
(O) could occur. Injury or death could occur if LIFT-
ING EYE fails while lifting machine.
ꢀ9
ASSEMBLY
ꢃ. Position Water Tank, and route Water Tank Hose as
shown in Diagram at right (FS 513). FS ꢄꢁ0 / FS ꢄꢁꢃ do
not use clamp shown in diagram.
ꢄ. Align rear bar and recessed area at rear of water tank.
• Press down firmly on water tank so it snaps in position
onto rear bar.
• When properly installed, water tank should pivot freely
on rear bar.
ꢅ. Disconnect existing water hose from blade guard.
This is the water hose from water control valve mounted
on saw.
ꢁ0
ASSEMBLY
ꢆ. Connect Water tank hose to blade guard water valve.
• Verify that blade guard water valve is in the OFF posi-
tion.
• The water tank hose is now assembled to the saw.
Filling Water Tank:
8. Remove the cap by turning counter clockwise. See
diagram at right.
• Fill water tank only with water. Read all WARNINGS
before using water tank.
• Re-install the cap by turning clockwise.
• Water tank is designed only to suppress airborne
concrete dust, and should only be used with “dry” cutting
diamond blades.
WARNING!
DO NOT use conventional (wet) diamond blades with
water tank as water source. Water flow is not suffi-
cient to properly cool blade!
Fill Water Tank Only With Water!
Never fill Water Tank (P) with flammable liquids or
gasoline, else injury or death could occur!
ꢁꢀ
OPERATION
Before Operation:
WARNING!
Use: This machine is used only for wet or dry sawing of
old and new concrete and asphalt.
Before operating machine, read and under-
stand this entire operation manual & engine
operation manual supplied with engine.
Be familiar with machine before operation!
WARNING!
DO NOT use for dry cutting in European Union (EU)
regions. Machine is not equipped with a dust port.
Operator must wear
personal protective
equipment & cloth-
ing appropriate to the
work he is doing.
Personal protective
equipment, such as
hearing & eye protec-
tion, is mandatory.
Tools: Use machine only with the following tools (H): Wa-
ter Cooled Diamond Blades. Reinforced Abrasive Blades
or Dry Cutting Diamond blades should NOT be used with-
in European Union (EU) regions because this machine, as
supplied, does not include a dust collector port.
Diameter: ꢂ00 mm (ꢀꢁ”) – ꢄ00 mm (ꢁ0”).
Bore: ꢁꢄ.ꢃmm (ꢀ.00”).
WARNING!
DO NOT use carbide, wood saw, or circular saw
blades on this machine, else injury or death could oc-
cur.
Re-Locating the Blade Guard (C) - If Required:
Blade Guard (C) is factory installed on right hand side of
machine, but can be relocated to left side. This may allow
cutting closer to obstacles, if approaching them from the
opposite direction is not possible.
ꢀ. Use ꢀꢂmm Wrench (U) to remove Blade Guard Rear
Bolt (E) from Blade Guard (C).
ꢁ. Push back collar to separate Water Hose Disconnect
(G). Male half remains with Blade Guard (C). Female
half remains with Water Tank (P) or Water Control Valve
(KK).
ꢂ. Lift Blade Guard (C) upward, and off of Blade Guard
Mounting Spade (Y).
ꢃ. Use ꢀꢂmm Wrench (U) to remove four (ꢃ) screws that
attach Blade Guard Latch Plate (F). Re-attach the Blade
Guard Latch Plate (F) to the left hand side of Blade Guard
(C).
ꢄ. Remove and relocate Shaft Guard (W) from left hand
side of machine to right hand side.
ꢅ. Lower Blade Guard (C) onto Blade Guard Mounting
Spade (Y) on left hand side of machine.
ꢆ. Re-Install Rear Bolt (E) in Blade Guard (C).
8. Re-Attach Water Hose Disconnect (G) from Blade
Guard (C) to Water Tank (P) or Water Valve (KK). Take
care that relocated hose will not contact muffler.
9. Relocate and realign Front Pointer (A) so Guide Wheel
(B) is on left side of machine.
ꢁꢁ
OPERATION
Transporting & Lifting Machine:
• Lift machine only from Lifting Point (O).
• Always remove Blade (H) before lifting, loading, or trans-
porting.
• Use a proper lifting strap rated for at least the maximum
mass of the machine. The nominal and maximum mass
of the machine are shown in the TECHNICAL DATA sec-
tion of this document.
Remove Blade (H) before lifting, loading,
or transporting machine.
Lifting machine equipped with Water Tank:
• Before lifting a machine equipped with a water tank:
ꢀ. Empty water from tank.
ꢁ. Remove Blade.
ꢂ. Lower machine until frame is parallel to ground.
ꢃ. Pivot front of water tank upward until it rests against
aluminum cowl top. Do not rest water tank cap against
plastic cowl front - damage during lifting could occur.
ꢄ. Attach proper lifting strap to Lifting Point (O).
ꢅ. Test Lift machine at a low level (just a few centimeters)
to verify tank remains secured to machine, and will not be
damaged or cause damage.
ꢆ. If water tank equiped machine can not be lifted without
damage to the machine or tank, remove water tank before
lifting.
NOTICE
Water tank or saw could be damaged if saw is not
lifted properly. Closely monitor for damage while lifting
machine.
Parking Machine:
• Machines used in some regions may require a Parking
Brake. Parking Brake for this machine is applied using
Transmission Engagment Lever (PP).
• Parking brake is designed to hold machine in position
on a slope of ꢀ0 degrees or less, with rear of machine
on downhill side of slope (maximum weight on braked
wheel).
Parking Brake - Engage (See Diagram):
ꢀ. Turn engine OFF (0).
ꢁ. Move Transmission Engagment Lever (PP) forward to
“engaged” position.
ꢁꢂ
OPERATION
Parking Brake - Dis-engage (See Dia
gram):
ꢀ. Move Transmission Engagment Lever (PP) rearward to
“dis-engaged” position. Must be fully dis-engaged.
ꢁ. Engine may now be started.
NOTICE
Parking Brake must be dis-engaged to start engine (FS
ꢄꢁ0 & FS ꢄꢁꢃ). Move Transmission Engagement Lever
(PP) rearward to Dis-Engaged position.
Gasoline Engine Models:
Refer to the engine operating manual for proper engine
operation.
FUEL: Unleaded gasoline is recommended. See engine
operation manual for more information.
OIL: Check that engine oil level is correct using the
Engine Oil Dipstick (Z). See Maintenance section of this
document or engine operation manual for more informa-
tion.
Because the engine often operates at an angle, check oil
level with engine horizontal. Check frequently to ensure
that oil level never falls below lower mark on dipstick.
ꢀ0Wꢂ0 oil is recommended. See engine operation
manual for more information.
NOTICE
If engine is equipped with a low oil shutdown system,
engine will not start if oil level is low. Also, engine may
stop if maximum angle of operation is exceeded. See
engine operation manual.
All Models:
FS 513
FS 520, FS 524
Front Pointer (A) must be checked for alignment with
blade. Lay a straight edge along Inner Flange (I). Align
Front Pointer (A) to straight edge. If required, adjust Front
Pointer (A) by loosening nuts that hold Guide Wheel (B)
in place. Align Guide Wheel (B) to straight edge and re-
tighten nuts.
Check that water tubing in the Blade Guard (C) is open
and that each side of blade has an adequate supply of
water.
Test the water supply for pressure and quantity (flow)
before starting the saw.
Saw only as deep as the job specifications require. Saw-
ing deeper than required will add excessive wear the
blade and machine.
Cut in increments of ꢄ0mm (ꢁ inches) deep until cutting
depth specification is reached. This is known as “step
cutting”.
Saw only in a straight line. Mark cutting line clearly so
saw operator can follow line without difficulty. Saw should
NOT be twisted from side to side to force blade back on
line.
ꢁꢃ
OPERATION
Fitting the Diamond Blade (H):
Install Diamond Blade (H) at job site. Do not
transport the machine with the Diamond Blade
(H) installed.
ꢀ. Open Front Cover (V).
ꢁ. Set Engine Start Switch (DD) to OFF (“0”) position.
ꢂ. Raise Diamond Blade (H) to highest position by turning
Blade Depth Control (EE) Counter-Clockwise.
ꢃ. Use ꢀꢂmm Wrench (U) located in Tool Compartment
(BB), to loosen and remove four (ꢃ) M8 bolts that attach
Blade Guard Latch Plate (F). Temporarily remove Blade
Guard Latch Plate (F).
ꢄ. Raise Blade Guard Front (D).
ꢅ. Using the ꢁꢆmm Blade Shaft Wrench (T), loosen and
remove the Blade Shaft Nut (L) that secures the Outer
Flange (J) in position.
NOTICE
Blade Shaft Nut (Lꢀ) on right hand side of machine has
left hand threads. To loosen, turn clockwise.
Blade Shaft Nut (Lꢁ)(not shown) on left hand side of
machine has right hand threads. To loosen, turn coun-
ter-clockwise.
ꢆ. Remove Outer Flange (J).
8. Check that Blade Shaft Arbor (M), Inner Flange (I), and
Outer Flange (J) are clean and free of foreign objects.
9. Fit Diamond Blade (H) onto Blade Shaft Arbor (M). Di-
rection of rotation is shown by arrows on Diamond Blade
(H) and Blade Guard Front (D). See diagram at right.
WARNING!
USE ONLY Blades (H) marked with a maximum operat-
ing speed greater than blade shaft speed of machine.
ꢀ0. Install Outer Flange (J) onto Blade Shaft Arbor (M).
Make sure that Locking Pin (K) passes through Diamond
Blade (H) and into Inner Flange (I).
DO NOT change to a larger size blade without changing
to proper belts and pulleys!
ꢀꢀ. Rotate Outer Flange (J) and Diamond Blade (H) in op-
posite direction of blade rotation to remove backlash.
DO NOT operate machine without proper guard over
Diamond Blade (H)!
ꢀꢁ. Install Blade Shaft Nut (L). Tighten using ꢁꢆmm Blade
Shaft Wrench (T).
DO NOT operate machine with Front Blade Guard (D)
raised!
Blade (H) exposure MUST NOT exceed ꢀ80 degrees
when operating machine!
NOTICE
Blade Shaft Nut (Lꢀ) on right hand side of machine has
left hand threads. To tighten, turn counter-clockwise.
Torque to ꢃꢄ N•m (ꢂꢂ lb-ft) - minimum.
Contact Surfaces of Blade Shaft Arbor (M), Inner Flange
(I), and Outer Flange (J) MUST BE clean and free of
foreign objects.
Blade Shaft Nut (Lꢁ)(not shown) on left hand side of
machine has right hand threads. To tighten, turn clock-
wise. Torque to ꢃꢄ N•m (ꢂꢂ lb-ft) - minimum.
DO NOT not transport machine with Blade (H) installed.
DO NOT use conventional (wet) Diamond Blades (H)
without water.
READ operation instructions supplied with Blade (H).
ꢀꢂ. Lower Blade Guard Front (D).
DO NOT install Blade (H) unless power source is in
OFF (0) position, and dis-connected from power supply.
ꢀꢃ. Re-install and tighten Blade Guard Latch Plate (F).
ꢁꢄ
OPERATION
Starting and cutting with machine:
• Using Blade Depth Control (EE), raise Diamond Blade
(H) as high as possible so it will not strike pavement
when maneuvering. Pull out on Blade Depth Stop (FF) if
required.
• Dis-engage Parking Brake (OO) by moving Transmis-
sion Engagement Lever (PP) rearward to Dis-Engaged
position.
• With engine OFF, maneuver machine into position near
line to be cut.
• Lower Front Pointer (A) onto cutting surface.
• Set Depth Indicator (GG) (use if desired):
ꢀ) Lower machine until diamond blade contacts cut-
ting surface.
ꢁ) Set Depth Indicator (GG) dial to align indicator
arrows with zero (0). Orange color indicates cutting
depth in centimeters. White color indicates inches.
ꢂ) Raise saw to maximum height. Now as Diamond
Blade (H) is lowered, Depth Indicator (GG) will
show cutting depth.
ꢃ) Fully raise Diamond Blade (H).
Starting FS 513:
• Verify that Emergency Stop Switch (AA) AND Engine
Start Switch (DD) are in “ON” position. Emergency Stop
Switch (AA) should be in outer position (pulled outward
from cowl). Engine Start Switch (DD) must be turned to
“ꢀ” (ON) position. Travel Speed Lever (QQ) is near the
“Stop” position.
• Start Engine by engaging Engine Choke Lever, and pull-
ing starting rope. Dis-engage Engine Choke Lever after
engine starts. See engine manual for more information.
Starting FS 520 / FS 524:
• Verify that Emergency Stop Switch (AA) is in outer posi-
tion (pulled outward from cowl), and Parking Brake (OO)
is dis-engaged [Transmission Engagement Lever (PP)
moved rearward to Dis-Engaged position]. Travel Speed
Lever (QQ) is near the “Stop” position.
• Pull Engine Choke Outward (See engine manual for
more information).
• Turn Engine Start Switch (DD) to “Start“ position.
NOTICE
• Start Engine. See engine manual for more information.
Parking Brake must be dis-engaged to start engine (FS
ꢄꢁ0 & FS ꢄꢁꢃ). Move Transmission Engagement Lever
(PP) rearward to Dis-Engaged position.
After Starting Engine (All Models):
• Visually verify that tool rotation matches directional ar-
row on blade guard.
• Open Water Control Valve (KKꢀ) FULL open. Verify full
water flow, and then adjust for proper amount of water on
the blade BEFORE you lower the Blade.
• Make final adjustments to align saw with cutting line.
Verify that Guide Wheel (B), and Diamond Blade (H) are
both on the cutting line.
ꢁꢅ
OPERATION
If water supply is interrupted, stop cutting immediate-
ly. Damage to Diamond Blade (H) could occur.
NOTICE
If an urgent situation arises during cutting opera-
tions STOP machine immediately using Emergency
Stop Switch (AA).
• Lower Diamond Blade (H) into the cut by slowly turning
Blade Depth Control (EE) COUNTER-CLOCKWISE.
• When desired depth of cut is reached, push Blade Depth
Stop (FF) down to lock it to Blade Depth Control (EE) (if
desired).
• Make sure Travel Speed Lever (QQ) is near the “Stop”
position, then move Transmission Engagement Lever
(PP) forward to “Engaged” position.
• Push Travel Speed Lever (QQ) forward until desired
travel speed is achieved. Watch Diamond Blade (H) and
Guide Wheel (B) carefully to assure that machine stays on
cutting line, and that Diamond Blade (H) does not rise out
of cutting path.
• When cut is complete, push Travel Speed Lever (QQ)
backward until travel stops.
• Dis-engage Blade Depth Stop (FF).
• Raise Diamond Blade (H) out of cut by slowly turning
Blade Depth Control (EE) CLOCKWISE.
For EMERGENCY STOP of machine,
press down EMERGENCY STOP
SWITCH (AA).
• Close Water Control Valve (KK).
•Move Transmission Engagement Lever (PP) rearward to
“Dis-engaged” position.
• Turn engine to “0” (OFF) position using the Engine Start
Switch (DD).
Extended Periods of Non-Operation (Two
Weeks or Greater):
FS 520 / FS 524: Remove Fuel in Engine:
• If the machine is not expected to be operated within two
weeks the fuel should be removed from the engine. The
following procedure can be used:
ꢀ. Open Batter Access Panel (Access Panel not
shown in diagram for clarity).
ꢁ. Close engine Fuel Shut-Off Valve (SS). Turn
clockwise to close.
ꢂ. Removed Blade and clear area of persons not
involved in this work.
ꢃ. Start engine and run at full speed until engine dies
because of fuel starvation.
NOTICE
Failure to drain fuel from engine during extended non-
operation periods could cause old fuel to clog carbura-
tor. Addtional engine maintainance may result.
WARNING!
Gasoline is highly flammable and explosive, and you
can be burned or seriously injured when handling fuel.
Remove Fuel from Fuel Tank:
• Stop engine and keep heat, sparks, and flame away.
• Refuel only outdoors.
• If the machine is not expected to be operated within four
or more weeks fuel should be removed from fuel tank.
See engine operation manual for information and safety
warnings..
• Wipe up spills immediately.
ꢁꢆ
MAINTENANCE & LUBRICATION
SCHEDULED MAINTENANCE QUICK REFERENCE:
Before performing any maintenance, ALWAYS park the machine on a level surface with the engine “OFF” and
the engine switch set in the “OFF” position. Let the machine cool down! Other maintenance and repairs
should only be carried out by a qualified technician.
SERVICE EVERY 50 HOURS:
1. Replace engine oil and filter.
2. Clean engine/motor air fins.
ꢂ. Lubricate Depth Control Grease Fitting (X).
ꢃ. Check wheels for wear or damage.
ꢄ. Check blade drive belt tension.
SERVICE DAILY:
ꢀ. Check engine oil level.
ꢁ. Check blade guard for damage.
3. Check engine air filter, replace if dirty. Service sooner
if used in dusty conditions.
ꢃ. Clean machine daily.
FS 513:
Replacing Engine Air Filter (S):
If the engine seems weak, produces black smoke or runs
unevenly, the air filter may be clogged. For this reason,
it is important to clean and replace the air filter regularly.
Check engine manual for detailed instructions.
Cleaning/replacement of the air filter is carried out as fol-
lows:
1.Undo the wing nut (S1) and lift off the cyclone air filter
cowling (Sꢁ).
2.Remove the foam rubber pre-filter (S3) and clean using
a mild detergent. Squeeze it dry with a clean cloth. Soak
it with new engine oil. Squeeze out excess oil.
3.Remove the wing nut (S4) in the air filter and remove
the paper filter (S5). Tap the paper filter against a fixed
surface to remove dust. If the paper filter is still dirty or
damaged, it MUST be replaced.
NOTICE
DO NOT use compressed air over 2 bar / 30 PSI to
clean the paper filter.
DO NOT wash paper filter.
DO NOT oil paper filter.
4.Refit the air filter as follows:
Mount the paper filter in the air filter housing and tighten
the wing nut.
5.Refit foam rubber pre-filter (S3) on the paper filter (S5).
6.Refit with the air filter cowling (S2).
FS 520 / FS 524:
The air filter on these models are “Snorkel Type” and are
supplied by engine manufacture. See engine operation
manual for service information. If used in dusty condi-
tions, use the recommended service interval shown in this
document.
ꢁ8
MAINTENANCE & LUBRICATION
LUBRICATION:
Depth Control Grease Fitting (X): A grease
fitting allows lubrication of Blade Depth Control
(EE) screw. To access this grease fitting:
• Raise the Diamond Blade (H) to maximum height.
Open Tool Compartment (BB), temporarily remove opera-
tion manual bag.
• Grease fitting (X) is located near top of Blade Depth
Control (EE) Tube.
• Add Grease to the fitting. Raise and lower the machine
a few times to circulate the grease through the tube.
• Replace Operation Manual Bag, close Tool Compart-
ment (BB) door.
Engine Oil:
Checking Engine Oil:
Check that engine oil level is correct. FS ꢄꢁꢃ
ONLY: Start the engine and let it idle for ꢀ or
ꢁ minutes. Stop the engine and wait for ꢁ or ꢂ
minutes. See engine operation manual for more
information.
FS 513:
Engine Oil Dipstick (Z) is located on front of
engine. Refill engine oil in dipstick hole. When
checking oil level, Engine Oil Dipstick (Z) should
not be screwed in. See engine operation
manual for more information.
FS 513
FS 520 / FS 524:
Engine Oil Dipstick (Z) is located on front of
engine. Refill engine oil in oil filler hole (see en-
gine operation manual). Fully insert Engine Oil
Dipstick (Z), then remove it to check oil level. If
the oil level is low, remove the oil filler cap, and
fill to the upper limit mark on Engine Oil Dipstick
(Z) with recommended oil type. See engine
operation manual for more information.
Because engine often operates at an angle,
check oil level with engine horizontal. Check
frequently to ensure that oil level never falls be-
low lower mark on dipstick. ꢀ0Wꢂ0 oil is recom-
mended. See engine operation manual for more
information.
FS 520, FS 524
ꢁ9
MAINTENANCE & LUBRICATION
Changing Engine Oil:
• Turn machine Start Switch (DD) to OFF (0) position.
Let engine cool. Use Depth Control (EE) to tilt machine
slightly backwards.
• Reposition Oil Drain Hose (NN) to side of machine.
Set a suitable container, large enough to hold engine oil
capacity, beside machine to catch oil.
• Open end of Oil Drain Hose (NN), and let oil drain into
container. After oil is drained, replace Oil Drain Hose
(NN) end, tighten securely, return hose to original position.
• Fill engine with recommended quantity of oil - see en-
gine manual for details.
• Dispose of used oil in an environmentally safe manner.
Battery Maintenance (FS 520 / FS 524):
This engine starting battery (RR) is a sealed unit and
will never require the addition of water. Keep the top of
the battery and the cable connections clean and free of
corrosion. Coat the connections with a high tempera-
ture grease or petroleum jelly. Periodically check the
battery by measuring its voltage with a DC voltmeter.
A fully charged battery will be ꢀꢁ.8 volts. It is recom-
mended that voltage checking and charging be done at
the battery cable on the starter motor at the front of the
saw.
Charge battery at least once a month. Charging can
be done by running engine for at lease ꢂ0 minutes or
connect battery to a trickle charger (ꢁ amps or less)
for 8 hours. If battery will not start engine, it is recom-
mended that battery be replaced or charged with a
trickle charger (ꢁ amp rating or less).
NOTICE
A fully charged battery will be ꢀꢁ.8 volts.
Jump starting this equipment from a larger battery or
boost charger is not recommended. Doing so could
cause permanent damage to the internal battery.
ꢂ0
MAINTENANCE & LUBRICATION
Blade Shaft Drive Belt Tension: Drive Belt should be
re-tensioned after first few hours of operation. Belt Drive
Idler (MM) holds tension on Drive Belt.
Tools Required:
• ꢀꢂmm Wrench (Included with machine).
• ꢂ/8” (9.ꢄꢂmm) Drive Torque Wrench (Not Included)
• ꢀꢃmm Wrench (Not included with machine).
ꢀ. Use ꢀꢂmm Wrench (U), to remove three (ꢂ) M8 bolts
that attach Belt Guard (LL). Remove Guard (LL).
ꢁ. Use the ꢀꢂmm & ꢀꢃmm wrenches to slightly loosen the
two (ꢁ) bolts that secure the Belt Drive Idler (MM) [bolts
indicated by (ꢁ) arrows].
ꢂ. Attach Torque Wrench to square hole in Belt Drive Idler
(MM).
ꢃ. Apply a torque to Drive Idler (MM) so that Drive Idler
(MM) is forced against the Drive-Belt. Torque to the value
shown in diagram ꢃ.
ꢄ. Tighten center bolt (CBꢀ) to hold Drive Idler (MM) in
position, then tighten remaining bolt (CBꢁ).
ꢅ. Reinstall Belt Guard (LL). Use ꢀꢂmm Wrench (U), to
tighten three (ꢂ) M8 bolts that attach Belt Guard (LL).
Governor Speed
It is critical that Governor and throttle on all internal
combustion engines be adjusted properly. Engine speed
is preset at factory for proper sawing speed. It is NOT
normally necessary to change this setting. It should be
periodically verified after machine is placed into service.
To change the Governor setting, refer to the engine
manual.
Blade Shaft & Engine Speed
WARNING!
Model
Blade Shaft
Engine
Overspeeding Diamond Blade (H) can result in
blade breakage and/or personal injury to operator
and bystanders! To assure proper Governor
adjustment, determine correct blade shaft speed
(RPM) from the adjacent chart. Follow engine
manufacturer’s instruction procedure for Governor
and throttle setting.
RPM
RPM
ꢂꢅ00
ꢂꢅ00
ꢂꢅ00
FS ꢄꢀꢂ
FS ꢄꢁ0
FS ꢄꢁꢃ
ꢁꢅ00
ꢁꢅ00
ꢁꢀ00
ꢂꢀ
MAINTENANCE & LUBRICATION
Hydrostatic Transmission:
Service of Hydrostatic Transmission (TT): Mainte-
nance free for life of machine.
Transmission Drive Belts: Remove guards shown in
diagram as right to access transmission drive belts.
• Transmission Drive Tensioner Belt (UU):
Belt Tension:
ꢀ. Check tension when machine is new.
ꢁ. Re-check tension after ꢀ-ꢁ hours of operation
and re-tighten to original tension if required - see
steps ꢂ-ꢄ below.
ꢂ. Lossen Bolts that hold Transmission Drive
Tensioner (V V) in place.
ꢃ. Move tensioner (V V) toward rear of machine
to increase tension.
ꢄ. Re-tighten bolts.
Belt and Sheave Wear:
Check every ꢄ0 hours for wear on belt and
sheaves. Replace if worn.
• Hydrostatic Transmission Belt (WW):
Belt Tension:
Checking tension is not required. Hydrostatic
Transmission Belt Tensioner (ZZ) is a spring
loaded self tensioning idler. Check for wear or
damage to idler spring - replace if required.
Belt and Sheave Wear:
Check every ꢄ0 hours for wear on belt and
sheaves. Replace if worn.
Replace guards shown in diagram as right before start-
ing engine.
ꢂꢁ
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 ꢄꢀꢂ) are in “ON” position. Emergency
Stop Switch (AA) should be pulled outward from cowl, and
Engine Start Switch (DD) turned to “ꢀ” (ON) position.
Fuel valve closed.
Open the fuel valve.
Choke valve open.
Close the choke with cold engine.
Fill with fuel.
Fuel tank empty.
Contamination, or water ice in fuel system.
Buildup on spark plug electrodes.
Engine has no power or runs unevenly. Air filter Clogged.
Clean tank, fuel lines and carburetor. Fill tank with fresh fuel.
Check electrode gap and clean.
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.
ꢂꢂ
WIRING DIAGRAM (FS 520)
ꢂꢃ
WIRING DIAGRAM (FS 520)
ITEM
PART NO
QTY DESCRIPTION
ꢀ
ꢁ
ꢂ
ꢃ
ꢄ
ꢄꢃꢁꢀ8ꢁꢁꢄ0
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
WIRE HARNESS
WIRE HARNESS, ENGINE, HONDA
CABLE, BATTERY NEGATIVE
CABLE, BATTERY POSITIVE
STARTER, HONDA
ꢄꢃꢁꢀ8ꢁꢁꢄꢂ
ꢄꢃꢁꢀ8ꢁꢁꢄꢃ
ꢅ
ꢀ
STOP DIODE, HONDA
ꢆ
8
9
ꢀ
ꢀ
ꢀ
SWITCH, ENG. OIL PRESS HONDA
FUEL CUT SOLENIOD, HONDA
REGULATOR, HONDA
ꢀ0
ꢀꢀ
ꢀꢁ
ꢀꢂ
ꢀ
ꢁ
ꢁ
ꢀ
WIRE HARNESS, REGULATOR, HONDA
COIL, IGNITION HONDA
SPARK PLUG
ꢀꢆꢆ9ꢁ0
ꢄꢃꢀꢁ08ꢂꢀ8
ꢄꢃꢁꢁ0ꢁꢂ09
ꢀꢅꢅꢆ08
SWITCH, IGNITION
ꢀꢃ
ꢀ
ꢀ
ꢁ
ꢀ
BATTERY, ꢀꢁ VOLT
SWITCH, PALM STOP
RELAY, NO/NC
ꢀꢄ
ꢀꢅ
ꢀꢆ
ꢄꢂ9ꢂ00ꢄꢄꢅ
TACH/HOURMETER
ꢀ8
ꢄꢃꢁꢁ0ꢃ0ꢄꢁ
ꢀ
NEUTRAL START SWITCH
ꢂꢄ
WIRING DIAGRAM (FS 524)
ꢂꢅ
WIRING DIAGRAM (FS 524)
ITEM
PART NO
QTY
DESCRIPTION
ꢀ
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢆ
ꢄꢃꢁꢀ8ꢁꢁꢆꢃ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
WIRE HARNESS
WIRE HARNESS, ENGINE, HONDA
CABLE, BATTERY NEGATIVE
CABLE, BATTERY POSITIVE
STARTER, HONDA
STOP DIODE, HONDA
SWITCH, ENG. OIL LEVEL, HONDA
ꢄꢃꢁꢀ8ꢁꢁꢄꢂ
ꢄꢃꢁꢀ8ꢁꢁꢄꢃ
8
9
ꢀ
ꢀ
ꢀ
FUEL CUT SOLENIOD, HONDA
REGULATOR, HONDA
ꢀ0
WIRE HARNESS, REGULATOR, HONDA
ꢀꢀ
ꢀꢁ
ꢀꢂ
ꢀꢃ
ꢀꢄ
ꢀꢅ
ꢀꢆ
ꢀ8
ꢀ9
ꢁ
ꢁ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
COIL, IGNITION HONDA
SPARK PLUG
ꢀꢆꢆ9ꢁ0
ꢄꢃꢀꢁ08ꢂꢀ8
ꢄꢃꢁꢁ0ꢁꢂ09
SWITCH, IGNITION
BATTERY, ꢀꢁ VOLT
SWITCH, PALM STOP
OIL ALERT UNIT, HONDA
TACH/HOURMETER
RELAY, NO/NC
ꢄꢂ9ꢂ00ꢄꢄꢅ
ꢀꢅꢅꢆ08
ꢄꢃꢁꢁ0ꢃ0ꢄꢁ
NEUTRAL START SWITCH
ꢂꢆ
WIRING DIAGRAM (FS 513)
ꢂ8
TECHNICAL DATA
Technical Data - Sound Level, EMC, and HAV
Sound Level
MODEL
POWER LEVEL
PRESSURE LEVEL
Lwa (dB)
EN ꢁꢂꢆꢃꢃ
Lpa (dB)
EN ISO ꢀꢀꢁ0ꢀ
-----
FS ꢄꢀꢂ
FS ꢄꢁ0
FS ꢄꢁꢃ
ꢀ0ꢆ
ꢀ0ꢃ
ꢀ0ꢄ
90
89
90
EMC
(ElectroMagnetic Compatibility)
The Honda engine on this equipment has been tested for EMC using the methods outlined in EN ꢀꢃ98ꢁ:98. The tests
found that the engine did not exceed the radiated emission limits. This test report is on file at Husqvarna Construction
Products, Olathe, Kansas, USA. Because the engine is the source for a vast majority of Electromagnetic activity of
this machine, Husqvarna Construction Products declares the entire machine to be Electromagnetically Compatible.
HAV
(Hand-Arm Vibration)
This tool does not exceed the exposure action value of 2.5 m/s2.
This equipment has been tested for HAV in accordance with ISO ꢄꢂꢃ9. The results are shown in the following chart.
Model
FSꢄꢀꢂ
FSꢄꢁ0
FSꢄꢁꢃ
Maximum Vibration (Aeq) in m/s2
Maximum Exposure Time
ꢁ.0ꢄ
0.89
ꢀ.ꢃꢅ
+ꢀ00%
+ꢀ00%
+ꢀ00%
The Aeq value is the measured continuous vibration at the extended handlebars expressed as acceleration with the
units of m/sꢁ (meters per second squared). The measured values were taken with a fully warmed engine, running
at maximum rated RPM and a ꢅ00-mm blade. The measurement point was the grip of the extended handlebars.
Instrumentation was a Larson Davis model HVMꢀ00 Human Vibration Meter and the SEN0ꢁꢀ Triaxial Accelerometer.
The accelerometer was secured to a hand adapter, which allows it to sense the same magnitude of vibration as the
operator’s hand.
The Maximum Exposure Time is a calculated value referenced to an 8-hour workday and the “daily exposure action
value” of ꢁ.ꢄ m/sꢁ as defined in Directive 2002/44/EC of 25 June 2002.
The time weighted daily vibration exposure time can be found with the following formula:
Maximum Exposure Time = (ꢁ.ꢄ/Aeq)ꢁ X 8 hours
Over exposure to vibrations can result in blood vessel or nerve injury to persons suffering with blood circulation problems.
Seek medical attention if you experience physical symptoms that can be related to over exposure to vibrations. Examples
of symptoms are numbness, lack of feeling, tingling, tickling, pain or a reduction of normal strength, or changes in skin
color. These symptoms normally appear in the fingers, hand or wrists.
ꢂ9
TECHNICAL DATA
Cutting Depth
Blade Size
Maximum Blade
Cutting Depth
ꢅ8 mm (ꢁ-ꢂ/ꢃ”)
9ꢂ mm (ꢂ-ꢂ/ꢃ”)
ꢀꢀ8 mm (ꢃ-ꢂ/ꢃ”)
ꢀꢃꢅ mm (ꢄ-ꢂ/ꢃ”)
ꢀꢅꢃ mm (ꢅ-ꢂ/ꢃ”)
ꢀ9ꢁ mm (ꢆ-ꢂ/ꢃ”)*
ꢁꢃꢆ mm (9-ꢂ/ꢃ”)**
Machine Mass
ꢁꢄ0 mm (ꢀ0”)
ꢂ00 mm (ꢀꢁ”)
Model
Nominal
Mass-kg (lbs) Mass-kg (lbs)
Maximum
ꢂꢄ0 mm (ꢀꢃ”)
FS ꢄꢀꢂ
FS ꢄꢁ0
FS ꢄꢁꢃ
ꢀ8ꢆ (ꢃꢀꢁ)
ꢁꢀ0 (ꢃꢅꢁ)
ꢁꢀꢂ (ꢃꢅ9)
ꢁꢀꢂ (ꢃꢆ0)
ꢁꢂꢅ (ꢄꢁ0)
ꢁꢂ9 (ꢄꢁꢆ)
ꢃ00 mm (ꢀꢅ”)
ꢃꢄ0 mm (ꢀ8”)
ꢄ00 mm (ꢁ0”)*
ꢅ00 mm (ꢁꢃ”)**
*FS ꢄꢁ0 & FS ꢄꢁꢃ Only,
Blade Shaft & Engine Speed
Model
Blade Shaft
Engine
**FS ꢄꢁꢃ Only
RPM
RPM
ꢂꢅ00
ꢂꢅ00
ꢂꢅ00
FS ꢄꢀꢂ
FS ꢄꢁ0
FS ꢄꢁꢃ
ꢁꢅ00
ꢁꢅ00
ꢁꢀ00
Fuel Tank Capacity
Model
FS ꢄꢀꢂ
Capacity
ꢅ,ꢄ Liters (ꢀ.ꢆꢁ U.S. Gallons) (ꢀ,ꢃꢂ
U.K. Gallons)
WARNING!
USE ONLY Blades (H) marked with a maximum operat-
ing speed greater than blade shaft speed of machine.
FS ꢄꢁ0
FS ꢄꢁꢃ
8,ꢂ Liters (ꢁ.ꢁ U.S. Gallons) (ꢀ,8ꢂ
U.K. Gallons)
8,ꢂ Liters (ꢁ.ꢁ U.S. Gallons) (ꢀ,8ꢂ
U.K. Gallons)
DO NOT change to a larger size blade without changing
to proper belts and pulleys!
Water Tank Capacity
ꢁꢄ Liters (ꢅ.ꢅ U.S. Gallons) (ꢄ.ꢄ U.K. Gallons)
ꢃ0
ACCESSORIES
Dual Pointer Assembly
542 20 22-70 Complete Kit
Water Tank Assembly
541 20 82-86 Complete Kit
ꢃꢀ
CONFORMITY CERTIFICATES
American National Standards Institute : For units used in the United States, this machine has been
designed to comply with American National Standards Institute ANSI Bꢆ.ꢀ-ꢁ000, “Safety Requirements
for the Use, Care and Protection of Abrasive Wheels”. This standard can be purchased by contacting the
American National Standards Institute at the address shown below:
American National Standards Institute
25 West 43rd Street, 4th floor
New York, NY ꢀ00ꢂꢅ
Telephone: ꢁꢀꢁ.ꢅꢃꢁ.ꢃ900
Fax: 212.398.0023
CALIFORNIA AIR RESOURCES BOARD (CARB): This machine is considered a preempt Off-Road Ap-
plication as relating to CARB standards. Under construction equipment, and in particular, as a concrete
saw (Saws: concrete, masonry, cutoff), with engine power less than ꢀ9KW (ꢁꢄ hp), CARB standards do
not apply to this machine.
EUROPEAN UNION (EU): For units used in countries that are members of the European Union (EU),
this machine is designed to meet the EU directives as declared below.
HUSQVARNA CONSTRUCTION PRODUCTS
DECLARATION OF CONFORMITY WITH THE “SAFETY OF MACHINERY” DIRECTIVE
(Directive 98/ꢂꢆ/EC) and the rules governing its transposition
MANUFACTURER
Husqvarna Construction Products North America
ꢀꢆꢃ00 West ꢀꢀ9th Street, Olathe, Kansas ꢅꢅ0ꢅꢀ USA
herewith declares that the machine(s) designed hereunder
FS 513, FS 520, FS 524
conforms to the “SAFETY OF MACHINERY” directive (98/ꢂꢆ/EC), the “LOW VOLTAGE EQUIPMENT” directive (ꢆꢂ/ꢁꢂ/EEC), the
“ELECTROMAGNETIC COMPATIBILITY” (EMC) directive (89/ꢂꢂꢅ/EEC) in accordance with European standards EN ꢄ008ꢀ/ꢀ
and EN ꢄꢄ0ꢁꢁ, and the “NOISE” directive (ꢁ000/ꢀꢃ/EEC) in accordance with European standard EN ISO ꢂꢆꢃꢃ.
16January2007, Olathe, Kansas USA
ꢃꢁ
CONTACT INFORMATION
Construction Products, North America
Corporate Office
ꢀꢆꢃ00 West ꢀꢀ9th Street, Olathe, Kansas ꢅꢅ0ꢅꢀ USA
Corporate Office: 913-928-1000
Corp. Office Fax: 913-438-7951
For local service, please contact your local Husqvarna Construction Products representative.
Para efectuar un servicio local, póngase en contacto con su representante local de
Husqvarna Construction Products.
Pour toute réparation, contacter le représentant local de Husqvarna Construction Products.
Für Service vor Ort wenden Sie sich bitte an Ihren örtlichen Vertreter von Husqvarna Construction Products.
Neem voor plaatselijke service contact op met uw plaatselijke vertegenwoordiger van de constructieproducten
van Husqvarna.
Per assistenza, rivolgersi al rappresentante di zona della Husqvarna Construction Products.
För service på platsen, kontakta din lokala representant för Husqvarna Construction Products.
Para obter serviço técnico local, contactar o representante da Husqvarna Construction Products
Europa / Europe:
Husqvarna Construction Products
SE-ꢃꢂꢂ 8ꢀ Partille, Sweden
Tel: +ꢃꢅ ꢂꢀ 9ꢃ 90 00
Fax: +ꢃꢅ ꢂꢀ 9ꢃ 90 ꢄ0
Asia Pacific:
Husqvarna Construction Products, Australia Pty Ltd
ꢁꢄ-ꢂꢀ Kinkaid Avenue,
North Plympton, Adelaide,
South Australia ꢄ0ꢂꢆ
Tel:+ꢅꢀ (0)8 8ꢂꢆꢄ ꢀ000
Fax:+ꢅꢀ (0)8 8ꢂꢆꢀ 0990
The Americas:
Husqvarna Construction Products, North America
ꢀꢆꢃ00 West ꢀꢀ9th Street, Olathe, Kansas ꢅꢅ0ꢅꢀ USA
Toll-Free Telephone: 800-ꢁ88-ꢄ0ꢃ0, Telephone: 9ꢀꢂ-9ꢁ8-ꢀꢂ00
Fax: 9ꢀꢂ-ꢃꢂ8-ꢆ9ꢂ8
ꢃꢂ
542 20 10-73
Printed in China
2006�44
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