STIHL Fs 50 C Manual

							FS 40, FS 40 C, FS 50, FS 50 C
English
39 Users of this unit should carry out only 
the maintenance operations described 
in this manual. Other repair work may be 
performed only by authorized STIHL 
service shops.
Warranty claims following repairs can be 
accepted only if the repair has been 
performed by an authorized STIHL 
servicing dealer using original STIHL 
replacement parts.
Original STIHL parts can be identified by 
the STIHL part number, the { 
logo and, in some cases, by the STIHL 
parts symbol K. The symbol may 
appear alone on small parts.
Not for California
Your Warranty Rights and Obligations
The U.S. Environmental Protection 
Agency (EPA) and STIHL Incorporated 
are pleased to explain the Emission 
Control System Warranty on your 
equipment type engine. In the U.S. new 
1997 and later model year small off-road 
equipment engines must be designed, 
built and equipped, at the time of sale, to 
meet the U.S. EPA regulations for small 
non road engines. The equipment 
engine must be free from defects in 
materials and workmanship which 
cause it to fail to conform with U.S. EPA 
standards for the first two years of 
engine use from the date of sale to the 
ultimate purchaser.
STIHL Incorporated must warrant the 
emission control system on your small 
off-road engine for the period of time 
listed below provided there has been no 
abuse, neglect or improper maintenance 
of your small off-road equipment engine.
Your emission control system includes 
parts such as the carburetor and the 
ignition system. Also included may be 
hoses, and connectors and other 
emission-related assemblies.
Where a warrantable condition exists, 
STIHL Incorporated will repair your 
small off-road equipment engine at no 
cost to you, including diagnosis (if the 
diagnostic work is performed at an 
authorized dealer), parts, and labor.Manufacturer's Warranty Coverage
In the U.S., 1997 and later model year 
small off-road equipment engines are 
w a r r a n t e d  f o r  t w o  y e a r s .  I f  a n y  e m i s s i o n -
related part on your engine is defective, 
the part will be repaired or replaced by 
STIHL Incorporated free of charge.
Owner's Warranty Responsibilities
As the small off-road equipment engine 
owner, you are responsible for the 
performance of the required 
maintenance listed in your instruction 
manual. STIHL Incorporated 
recommends that you retain all receipts 
covering maintenance on your small off-
road equipment engine, but STIHL 
Incorporated cannot deny warranty 
solely for the lack of receipts or for your 
failure to ensure the performance of all 
scheduled maintenance.
Any replacement part or service that is 
equivalent in performance and durability 
may be used in non-warranty 
maintenance or repairs, and shall not 
reduce the warranty obligations of the 
engine manufacturer.
As the small off-road equipment engine 
owner, you should be aware, however, 
that STIHL Incorporated may deny you 
warranty coverage if your small off-road 
equipment engine or a part has failed 
due to abuse, neglect, improper 
maintenance or unapproved 
modifications.
You are responsible for presenting your 
small off-road equipment engine to a 
STIHL service center as soon as a 
problem exists. The warranty repairs will 
be completed in a reasonable amount of 
time, not to exceed 30 days.
Maintenance and RepairsSTIHL Incorporated Federal 
Emission Control Warranty 
Statement 
						

							FS 40, FS 40 C, FS 50, FS 50 C
English
40 If you have any questions regarding your 
warranty rights and responsibilities, 
please contact a STIHL customer 
service representative at 1-800-467-
8445 or you can write to
STIHL Inc.,
536 Viking Drive, P.O. Box 2015,
Virginia Beach, VA 23450-2015
www.stihlusa.com
Coverage by STIHL Incorporated
STIHL Incorporated warrants to the 
ultimate purchaser and each 
subsequent purchaser that your small 
off-road equipment engine will be 
designed, built and equipped, at the time 
of sale, to meet all applicable 
regulations. STIHL Incorporated also 
warrants to the initial purchaser and 
each subsequent purchaser that your 
engine is free from defects in materials 
and workmanship which cause the 
engine to fail to conform with applicable 
regulations for a period of two years.
Warranty Period
The warranty period will begin on the 
date the utility equipment engine is 
purchased by the initial purchaser and 
you have signed and sent back the 
warranty card to STIHL.
If any emission-related part on your 
engine is defective, the part will be 
replaced by STIHL Incorporated at no 
cost to the owner. Any warranted part 
which is not scheduled for replacement 
as required maintenance, or which is 
scheduled only for regular inspection to 
the effect of "repair or replace as 
necessary" will be warranted for the 
warranty period. Any warranted part 
which is scheduled for replacement as required maintenance will be warranted 
for the period of time up to the first 
scheduled replacement point for that 
part.
Diagnosis
You, as the owner, shall not be charged 
for diagnostic labor which leads to the 
determination that a warranted part is 
defective. However, if you claim 
warranty for a component and the 
machine is tested as non-defective, 
STIHL Incorporated will charge you for 
the cost of the emission test. Mechanical 
diagnostic work will be performed at an 
authorized STIHL servicing dealer. 
Emission test may be performed either 
at STIHL Incorporated or at any 
independent test laboratory.
Warranty Work
STIHL Incorporated shall remedy 
warranty defects at any authorized 
STIHL servicing dealer or warranty 
station. Any such work shall be free of 
charge to the owner if it is determined 
that a warranted part is defective.
Any manufacturer-approved or 
equivalent replacement part may be 
used for any warranty maintenance or 
repairs on emission-related parts and 
must be provided without charge to the 
owner. STIHL Incorporated is liable for 
damages to other engine components 
caused by the failure of a warranted part 
still under warranty.
The following list specifically defines the 
emission-related warranted parts:
–Air Filter
–Carburetor
–Fuel Pump–Choke (Cold Start Enrichment 
System)
–Control Linkages
–Intake Manifold
–
Magneto or Electronic Ignition 
System (Ignition Module)
–Spark Plug
–Catalytic Converter (if applicable)
–Fuel Tank
–Fuel Cap
–Fuel Line
–Fuel Line Fittings
–Clamps
–Fasteners
Where to make a Claim for Warranty 
Service
Bring the product to any authorized 
STIHL servicing dealer and present the 
signed warranty card.
Maintenance Requirements
The maintenance instructions in this 
manual are based on the application of 
the recommended 2-stroke fuel-oil 
mixture (see also instruction "Fuel"). 
Deviations from this recommendation 
regarding quality and mixing ratio of fuel 
and oil may require shorter maintenance 
intervals.
Limitations
This Emission Control Systems 
Warranty shall not cover any of the 
following: 
						

							FS 40, FS 40 C, FS 50, FS 50 C
English
41 Nrepair or replacement required 
because of misuse, neglect or lack 
of required maintenance,
Nrepairs improperly performed or 
replacements not conforming to 
STIHL Incorporated specifications 
that adversely affect performance 
and/or durability, and alterations or 
modifications not recommended or 
approved in writing by STIHL 
Incorporated,
and
Nreplacement of parts and other 
services and adjustments 
necessary for required maintenance 
at and after the first scheduled 
replacement point.
For California only
Your Warranty Rights and Obligations
The California Air Resources Board 
(CARB) and STIHL Incorporated are 
pleased to explain the Emission Control 
System Warranty on your 2007 and later 
small off-road equipment engine.
In California, new equipment that uses 
small off-road engines must be 
designed, built, and equipped to meet 
the State's stringent anti-smog 
standards. STIHL Incorporated must 
warrant the emissions control system on 
your small off-road engine for the period 
listed below provided there has been no 
abuse, neglect or improper maintenance 
of your small off-road engine.
Your emissions control system may 
include parts such as:
Air Filter, Carburetor, Fuel Pump, Choke 
(Cold Start Enrichment System), Control 
Linkages, Intake Manifold, Magneto or 
Electronic Ignition System (Ignition 
Module), Spark Plug, Catalytic 
Converter (if applicable), Fuel Tank, 
Fuel Cap, Fuel Line, Fuel Line Fittings, 
Clamps, Fasteners.
Where a warrantable condition exists, 
STIHL Incorporated will repair your 
small off-road equipment engine at no 
cost to you including diagnosis, parts 
and labor.Manufacturer’s Warranty 
Responsibilities
This emissions control system is 
warranted for two years in California. If 
any emissions-related part on your 
equipment is defective, the part will be 
repaired or replaced by STIHL 
Incorporated free of charge.
Owner’s Warranty Responsibilities
As the small off-road equipment engine 
owner, you are responsible for 
performance of the required 
maintenance listed in your instruction 
manual. STIHL Incorporated 
recommends that you retain all receipts 
covering maintenance on your small off-
road equipment engine, but STIHL 
Incorporated cannot deny warranty 
solely for the lack of receipts or your 
failure to ensure the performance of all 
scheduled maintenance.
As the small off-road equipment engine 
owner, you should however be aware 
that STIHL Incorporated may deny you 
warranty coverage if your small off-road 
equipment engine or a part has failed 
due to abuse, neglect, or improper 
maintenance or unapproved 
modifications.
You are responsible for presenting your 
small off-road equipment engine to a 
STIHL servicing dealer as soon as the 
problem exists. The warranty repairs 
should be completed in a reasonable 
amount of time, not to exceed 30 days. If 
you have any questions regarding your 
warranty rights and responsibilities, 
please contact a STIHL customer 
service representative at 1-800-467-
8445 or you can write to
STIHL Incorporated 
California Exhaust and 
Evaporative Emissions 
Control Warranty Statement 
						

							FS 40, FS 40 C, FS 50, FS 50 C
English
42 STIHL Inc., 536 Viking Drive,
P.O. Box 2015,
Virginia Beach, VA 23450-2015.
Coverage by STIHL Incorporated
STIHL Incorporated warrants to the 
ultimate purchaser and each 
subsequent purchaser that your small 
off-road equipment engine is designed, 
built and equipped, at the time of sale, to 
meet all applicable emission 
regulations.
STIHL Incorporated also warrants to the 
initial purchaser and each subsequent 
purchaser that your engine is free from 
defects in materials and workmanship 
which cause the engine to fail to conform 
to applicable emission regulations for a 
period of two years.
Defects Warranty Period
The warranty periods will begin on the 
date the utility equipment engine is 
purchased by the initial purchaser. If any 
emission-related part on your engine is 
defective, the part will be replaced by 
STIHL Incorporated at no cost to the 
owner.
Add-on or modified parts that are not 
exempted by CARB may not be used. 
The use of any non exempted add-on or 
modified parts will be grounds for 
disallowing a warranty claim. STIHL 
Incorporated will not be liable to warrant 
failures of warranted parts caused by the 
use of a non exempted add-on or 
modified part.The warranty on emissions-related parts 
will be interpreted as follows:
1.Any warranted part that is not 
scheduled for replacement as 
required maintenance in the written 
instructions required in the 
Emission Warranty Parts List (see 
below) must be warranted for the 
warranty period defined in 
Subsection COVERAGE BY STIHL 
INCORPORATED, see above. If 
any such part fails during the period 
of warranty coverage, it must be 
repaired or replaced by the 
manufacturer according to 
Subsection (4) below. Any such part 
repaired or replaced under the 
warranty must be warranted for the 
remaining warranty period.
2.Any warranted part that is 
scheduled only for regular 
inspection in the written instructions 
required by the Emission Warranty 
Parts List (see below) must be 
warranted for the warranty period 
defined in Subsection COVERAGE 
BY STIHL INCORPORATED, see 
above. A statement in such written 
instructions to the effect of "repair or 
replace as necessary" will not 
reduce the period of warranty 
coverage. Any such part repaired or 
replaced under warranty must be 
warranted for the remaining 
warranty period.
3.Any warranted part that is 
scheduled for replacement as 
required maintenance in the written 
instructions required by the 
Emission Warranty Parts List (see 
below) must be warranted for the 
period of time prior to the first 
scheduled replacement point for that part. If the part fails prior to the 
first scheduled replacement, the 
part must be repaired or replaced by 
the engine manufacturer according 
to Subsection (4) below. Any such 
part repaired or replaced under 
warranty must be warranted for the 
remainder of the period prior to the 
first scheduled replacement point 
for the part.
4.Repair or replacement of any 
warranted part under the warranty 
must be performed at a warranty 
station at no charge to the owner.
5.Notwithstanding the provisions of 
Subsection (4) above, warranty 
services or repairs will be provided 
at all manufacturer distribution 
centers that are authorized to 
service the subject engines.
6.The owner must not be charged for 
diagnostic labor that leads to the 
determination that a warranted part 
is in fact defective, provided that 
such diagnostic work is performed 
at a warranty station.
Warranty Work
STIHL Incorporated shall remedy 
warranty defects at any authorized 
STIHL servicing dealer or warranty 
station. Any such work shall be free of 
charge to the owner if it is determined 
that a warranted part is defective. Any 
manufacturer approved or equivalent 
replacement part may be used for any 
warranty maintenance or repairs on 
emission-related parts and must be 
provided without charge to the owner. 
STIHL Incorporated is liable for  
						

							FS 40, FS 40 C, FS 50, FS 50 C
English
43 damages to other engine components 
caused by the failure of a warranted part 
still under warranty.
Emission Warranty Parts List
Air Filter, Carburetor, Fuel Pump, Choke 
(Cold Start Enrichment System), Control 
Linkages, Intake Manifold, Magneto or 
Electronic Ignition System (Ignition 
Module), Spark Plug, Catalytic 
Converter (if applicable), Fuel Tank, 
Fuel Cap, Fuel Line, Fuel Line Fittings, 
Clamps, Fasteners
Where to make a Claim for Warranty 
Service
Bring the STIHL product to any 
authorized STIHL servicing dealer and 
present the signed STIHL product 
registration card, or the print-out of the 
electronic product registration.
Limitations
The repair or replacement of any 
warranted part otherwise eligible for 
warranty coverage may be excluded 
from such warranty coverage if STIHL 
Incorporated demonstrates that the 
STIHL product has been abused, 
neglected, or improperly maintained, 
and that such abuse, neglect, or 
improper maintenance was the direct 
cause of the need for repair or 
replacement of the part. That 
notwithstanding, any adjustment of a 
component that has a factory installed, 
and properly operating, adjustment 
limiting device is still eligible for warranty 
coverage.
STIHL Registered Trademarks
STIHL
®
{
K
The color combination orange-grey 
(U.S. Registrations #2,821,860; 
#3,010,057, #3,010,058, #3,400,477; 
and #3,400,476)
4-MIX
®
AUTOCUT®
EASYSTART®
FARM BOSS®
iCademy®
OILOMATIC®
STIHL Cutquik®
STIHL DUROMATIC®
STIHL Quickstop®
STIHL ROLLOMATIC®
STIHL WOOD BOSS®
TIMBERSPORTS®
WOOD BOSS®
YARD BOSS®
Some of STIHL’s Common Law 
Trademarks
BioPlus ™
Easy2Start ™
EasySpool ™
ElastoStart ™
Ematic ™
FixCut ™
HT Plus ™
IntelliCarb ™
Master Control Lever ™
Micro ™
Pro Mark ™
Quad Power ™
Quiet Line ™
STIHL Compact ™
STIHL HomeScaper Series ™
STIHL Interchangeable Attachment 
Series ™
STIHL M-Tronic ™
STIHL Magnum ™
STIHL MiniBoss ™
STIHL MotoPlus 4 ™
STIHL Multi-Cut HomeScaper Series ™
STIHL OUTFITTERS ™
STIHL PICCO ™
STIHL PolyCut ™
STIHL PowerSweep ™Trademarks 
						

							FS 40, FS 40 C, FS 50, FS 50 C
English
44 STIHL Precision Series ™
STIHL Protech ™
STIHL RAPID ™
STIHL SuperCut ™
STIHL Territory ™
TapAction ™
TrimCut ™
This listing of trademarks is subject to 
change.
Any unauthorized use of these 
trademarks without the express written 
consent of 
ANDREAS STIHL AG & Co. KG, 
Waiblingen is strictly prohibited. 
						

							Manual de instrucciones original Impreso en papel libre de cloro.
Las tintas contienen aceites vegetales, el papel es reciclable. © ANDREAS STIHL AG & Co. KG, 2011
0458-546-8621-C. M13-5.H11.CP. 
0000001050_008_EA
FS 40, FS 40 C, FS 50, FS 50 C
español / EE.UU
45
{
Contenido
Permita que solamente las personas 
que comprenden la materia tratada en 
este manual manejen su orilladora.
Para obtener el rendimiento y 
satisfacción máximos de la orilladora 
STIHL, es importante que lea, obedezca 
y comprenda las precauciones de 
seguridad y las instrucciones de uso y 
mantenimiento dadas en el capítulo 
"Precauciones de seguridad y técnicas 
de uso", antes de usar la orilladora. Para 
obtener información adicional, visite 
www.stihlusa.com.
Comuníquese con su representante de 
STIHL o el distribuidor de STIHL para su 
zona si no se entiende alguna de las 
instrucciones dadas en el presente 
manual.
Asegúrese que su máquina esté 
equipada con el deflector, mango y 
arnés adecuados para el tipo de 
accesorio de corte que se está 
utilizando. Siempre protéjase 
adecuadamente los ojos. Acerca de este manual de 
instrucciones 46
Medidas de seguridad y técnicas 
de manejo 47
Combinaciones aprobadas de 
accesorio de corte, deflector, 
mango y arnés 61
Montaje del mango tórico 62
Montaje de la barra de defensa 62
Montaje del accesorio de corte 63
Combustible 66
Llenado de combustible 68
Arranque / parada del motor 70
Instrucciones para el uso 72
Limpieza del filtro de aire 73
Gestión del motor 74
Ajuste del carburador 74
Bujía 75
Funcionamiento del motor 77
Dispositivo de arranque 77
Almacenamiento de la máquina 77
Sustitución del hilo de nilón 78
Inspección y mantenimiento por el 
concesionario 81
Información para mantenimiento 82
Componentes importantes 84
Especificaciones 85
Accesorios especiales 86
Información de reparación 87
Declaración de garantía de STIHL 
Incorporated sobre sistemas de 
control de emisiones según normas 
Federales 87Declaración de garantía de STIHL 
Incorporated sobre el control de 
emisiones de gases de escape y 
emisiones por evaporación para el 
Estado de California 89
Marcas comerciales 92
Advertencia!
Dado que la orilladora es una herra-
mienta de corte motorizada de gran 
velocidad, es necesario tomar medidas 
especiales de seguridad para reducir el 
riesgo de lesiones. El uso descuidado o 
inadecuado puede causar lesiones gra-
ves e incluso mortales. 
						

							FS 40, FS 40 C, FS 50, FS 50 C
español / EE.UU
46
Pictogramas
Todos los pictogramas que se 
encuentran fijados o grabados en la 
máquina se explican en este manual.
Según el modelo, los pictogramas 
siguientes pueden aparecer en su 
máquina.
Símbolos en el texto
Muchas de las instrucciones de uso y 
seguridad vienen acompañadas de 
ilustraciones.
Los pasos individuales o 
procedimientos descritos en el manual 
pueden estar señalados en diferentes 
maneras:
NSe usa un punto para denotar un 
paso o procedimiento.
Una descripción de un paso o 
procedimiento que se refiere 
directamente a una ilustración puede 
contener números de referencia que 
aparecen en la ilustración. Ejemplo:
NSuelte el tornillo (1).
NPalanca (2) ...
Además de las instrucciones de uso, en 
este manual pueden encontrarse 
párrafos a los que usted debe prestar 
atención especial. Tales párrafos están 
marcados con los símbolos y las 
palabras identificadoras que se 
describen a continuación.
Mejoramientos técnicos
La filosofía de STIHL es mejorar 
continuamente todos sus productos. 
Como resultado de ello, periódicamente 
se introducen cambios de diseño y 
mejoras. Por lo tanto, es posible que 
algunos cambios, modificaciones y 
mejoras no se describen en este 
manual. Si las características de 
funcionamiento o la apariencia de su 
máquina difieren de las descritas en 
este manual, comuníquese con el 
concesionario STIHL para obtener la 
ayuda que requiera.
Acerca de este manual de 
instrucciones
Tanque de combustible 
que contiene la mezcla 
de combustible y aceite
Presione para accionar la 
válvula de 
descompresión
Bomba de combustible 
manual
Presione para accionar la 
bomba manual de 
combustible
Orificio de llenado para 
lubricante de engranajes
Toma de aire para modo 
de verano
Toma de aire para modo 
de invierno
Calentador de manillar
¡Peligro!
Indica un riesgo inminente de lesiones 
graves o mortales.
Advertencia!
Identifica una situación de peligro que, 
al no evitarse, puede resultar en lesio-
nes graves o mortales.
¡Precaución!
Indica el riesgo de daños a la propie-
dad, incluyendo a la máquina o sus 
componentes. 
						

							FS 40, FS 40 C, FS 50, FS 50 C
español / EE.UU
47 Los términos empleados en este manual 
para designar la herramienta 
motorizada variarán de acuerdo con los 
tipos de accesorios de corte que pueden 
instalarse en la misma. La palabra 
"motoguadaña" se usa para identificar 
una unidad FS equipada con un cabezal 
de hilo de nilón o un cabezal con 
cuchillas de plástico flexibles (tal como 
el cabezal PolyCut).Pida a su concesionario STIHL que le 
enseñe el manejo de la herramienta 
motorizada. Respete todas las 
disposiciones, reglamentos y normas de 
seguridad locales del caso.Use la motoguadaña equipada con el 
accesorio de corte apropiado 
únicamente para cortar pasto y 
materiales similares.
Medidas de seguridad y 
técnicas de manejo
Dado que la 
motoguadaña es una 
herramienta de corte que 
funciona a gran veloci-
dad, es necesario tomar 
medidas especiales de 
seguridad para reducir el 
riesgo de lesiones.
Es importante que usted 
lea, comprenda bien y 
respete las siguientes 
advertencias y medidas 
de seguridad. Lea el 
manual de instrucciones 
y las precauciones de 
seguridad 
periódicamente. El uso 
descuidado o inadecuado 
puede causar lesiones 
graves o incluso 
mortales.
¡Advertencia!
Tal como se explicará a continuación en 
estas Medidas de seguridad, para redu-
cir el riesgo de lesiones personales, 
asegúrese que su máquina esté equi-
pada con el mango, arnés y deflector 
adecuados para el tipo de accesorio de 
corte que se está utilizando. Utilice 
exclusivamente los accesorios de corte 
autorizados específicamente por STIHL 
para usar en su modelo FS. Para redu-
cir el riesgo de lesiones personales o la 
muerte debido al contacto con las cuchi-
llas y / o a la pérdida de control, nunca 
intente usar una cuchilla metálica en 
esta motoguadaña.
¡Advertencia!
No preste ni alquile nunca su herra-
mienta motorizada sin entregar el 
manual de instrucciones. Asegúrese 
que todas las personas que utilicen la 
máquina lean y comprendan la 
información contenida en este manual.¡Advertencia!
El uso de esta máquina puede ser peli-
groso. Si el hilo o la cuchilla giratoria 
llega a entrar en contacto con su 
cuerpo, le ocasionará una cortadura. 
Cuando choca con algún objeto extraño 
sólido tal como rocas o pedazos de 
metal, puede arrojarlo directamente o 
por rebote en dirección de personas 
que se encuentren en la cercanía o del 
operador. El chocar contra este tipo de 
objetos puede dañar el accesorio de 
corte. Los objetos lanzados, incluso los 
cabezales o las cuchillas rotos, pueden 
provocar lesiones graves o mortales al 
operador o a personas que se encuen-
tren en su proximidad.
¡Advertencia!
No debe usarse para ningún otro 
propósito ya que el uso indebido puede 
resultar en lesiones personales o daños 
a la propiedad, incluso daños de la 
máquina.
¡Advertencia!
Nunca se debe permitir a los niños que 
usen esta herramienta motorizada. No 
se debe permitir la proximidad de otros, 
especialmente niños y animales, donde 
se esté utilizando la máquina. 
						

							FS 40, FS 40 C, FS 50, FS 50 C
español / EE.UU
48 Las medidas de seguridad y avisos 
contenidos en este manual se refieren al 
uso de todas las motoguadañas de 
STIHL. Los distintos modelos pueden 
contar con piezas y controles diferentes. 
Vea la sección correspondiente de su 
manual de instrucciones para tener una 
descripción de los controles y la función 
de los componentes de su modelo.
El uso seguro de una motoguadaña 
atañe a
1.el operador
2.la herramienta motorizada
3.el uso de la herramienta 
motorizada.
EL OPERADOR
Condición física
Usted debe estar en buenas 
condiciones físicas y psíquicas y no 
encontrarse bajo la influencia de 
ninguna sustancia (drogas, alcohol, 
etc.) que le pueda restar visibilidad, 
destreza o juicio. No maneje esta 
máquina cuando está fatigado.Estas condiciones reducen la capacidad 
de las manos de sentir y regular la 
temperatura, producen entumecimiento 
y ardor y pueden provocar trastornos 
nerviosos y circulatorios, así como 
necrosis de los tejidos.
No se conocen todos los factores que 
contribuyen a la enfermedad de 
Raynaud, pero el clima frío, el fumar y 
las enfermedades o condiciones físicas 
que afectan los vasos sanguíneos y la 
circulación de la sangre, como asimismo 
los niveles altos de vibración y períodos 
prolongados de exposición a la 
vibración son mencionados como 
factores en el desarrollo de la enfermedad de Raynaud. Por lo tanto, 
para reducir el riesgo de la enfermedad 
de dedos blancos y del síndrome del 
túnel carpiano, sírvase notar lo 
siguiente:
–La mayor parte de las herramientas 
motorizadas de STIHL se ofrecen 
con un sistema antivibración ("AV") 
cuyo propósito es reducir la 
transmisión de las vibraciones 
creadas por la máquina a las manos 
del operador. Se recomienda el uso 
del sistema AV a aquellas personas 
que utilizan herramientas 
motorizadas en forma constante y 
regular.
–Use guantes y mantenga las manos 
abrigadas.
–Mantenga el sistema AV en buen 
estado. Una herramienta 
motorizada con los componentes 
flojos o con amortiguadores AV 
dañados o desgastados también 
tendrá tendencia a tener niveles 
más altos de vibración.
–Agarre firmemente los mangos en 
todo momento, pero no los apriete 
con fuerza constante y excesiva. 
Tómese descansos frecuentes.
Todas las precauciones antes 
mencionadas no le garantizan que va a 
estar totalmente protegido contra la 
enfermedad de Raynaud o el síndrome 
del túnel carpiano. Por lo tanto, los 
operadores constantes y regulares 
deben revisar con frecuencia el estado 
de sus manos y dedos. Si aparece 
alguno de los síntomas arriba 
mencionados, consulte inmediatamente 
al médico. ¡Advertencia!
Para reducir el riesgo de ocasionar 
lesiones a las personas en la cercanía y 
daños a la propiedad, nunca deje la 
herramienta motorizada en marcha 
desatendida. Cuando no está en uso 
(por ejemplo durante el descanso), 
apáguela y asegúrese de que las perso-
nas no autorizadas no puedan usarla.
¡Advertencia!
Esté alerta. Si se cansa, tómese un des-
canso. El cansancio puede provocar 
una pérdida del control. El uso de cual-
quier herramienta motorizada es 
fatigoso. Si usted padece de alguna 
dolencia que pueda ser agravada por la 
fatiga, consulte a su médico antes de 
utilizar esta máquina.
¡Advertencia!
El uso prolongado de una herramienta 
motorizada (u otras máquinas) expone 
al operador a vibraciones que pueden 
provocar el fenómeno de Raynaud 
(dedos blancos) o el síndrome del túnel 
carpiano.