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Fueling Instructions

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5 IMPORTANT SAFETY INSTRUCTIONS Use of parts that are not authorized or approved by STIHL may cause serious or fatal injury or property damage. - STIHL recommends that only identical STIHL replacement parts be used. 5.5 Fueling Instructions Fuel WARNING ■ Gasoline and its vapors are extremely flamma‐ ble. Your STIHL chain saw uses an oil-gaso‐ line mixture for fuel. If spilled and ignited by a spark or other ignition source, it can cause fire and serious burn injury or property damage. - Use extreme caution when handling gasoline or fuel mix. - Do not smoke or bring any fire or flame near the fuel or the chain saw. - Note that combustible fuel vapor may escape from the fuel system. Pick a Safe Location for Fueling WARNING ■ To reduce the risk of fire and explosion while fueling: - Fuel your chain saw in a well-ventilated area, outdoors away from flames, pilot lights, heaters, electric motors, and other sour‐ ces of ignition. Vapors can be ignited by a spark or flame many feet away. - Select bare ground for fueling and move at least 10 ft. (3 m) from the fueling spot before starting the engine. - Wipe off any spilled fuel before starting your chain saw. - Take care not to get fuel on your clothing. If this happens, change your clothing immedi‐ ately. Allow the Engine to Cool Before Removing the Fuel Cap WARNING ■ Gasoline vapor pressure may build up inside the fuel tank. The amount of pressure English depends on a number of factors, such as the fuel used, altitude, and temperature. To reduce the risk of burns and other personal injury from escaping gas, vapor and fumes: - Always shut off the engine and allow it to cool before removing the fuel cap. ■ The engine is air cooled. When it is shut off, cooling air is no longer drawn across the cylin‐ der and engine temperatures will rise for sev‐ eral minutes before starting to cool. In hot environments, cooling will take longer. To reduce the risk of burns and other personal injury from escaping gas vapor and fumes: - Allow the chain saw to cool. If you need to refuel before completing a job, turn off the machine and allow the engine to cool before opening the fuel tank. Fuel Spraying or "Geysering" WARNING ■ Removing the cap on a pressurized fuel tank can result in gasoline, vapors and fumes being forcefully sprayed out from the fuel tank in all directions. The escaping gasoline, vapors or fumes can cause serious personal injury, including fire and burn injury, or property dam‐ age. ■ Sometimes also referred to as "fuel geyser‐ ing," fuel spraying is an expulsion of fuel, vapors and fumes which can occur in hot con‐ ditions, or when the engine is hot, and the tank is opened without allowing the saw to cool adequately. It is more likely to occur when the fuel tank is half full or more. ■ Pressure is caused by fuel and heat and can occur even if the engine has not been running. When gasoline in the fuel tank is heated (by ambient temperatures, heat from the engine, or other sources), vapor pressure will increase inside the fuel tank. ■ Some blends of gasoline, particularly winter blends, may cause tanks to pressurize more quickly or create greater pressure. At higher altitudes, fuel tank pressurization is more likely. How to Avoid Fuel Spraying WARNING ■ Removing the fuel cap on a pressurized tank can result in gasoline, vapors and fumes being forcefully sprayed out from the fuel tank in all directions. To reduce the risk of burns, serious injuries or property damage from fuel spraying: 0458-200-8621-A 7

Section	Page
STIHL MS 162, 172	1
1 Introduction	2
2 Guide to Using this Manual	2
2.1 Signal Words	2
2.2 Symbols in Text	2
3 Main Parts	3
3.1 Chain Saw	3
3.2 Optional Features	4
4 Safety Symbols on the Product	4
4.1 Chain Saw	4
5 IMPORTANT SAFETY INSTRUCTIONS	4
5.1 Intended Use	4
5.2 Operator	4
5.3 Personal Protective Equipment	5
5.4 Chain Saw	6
5.5 Fueling Instructions	7
5.6 Using the Chain Saw	9
6 Kickback and Other Reactive Forces	14
6.1 Reactive Forces	14
6.2 Kickback	14
6.3 Pull-in	18
6.4 Pushback	18
7 Proper Techniques for Basic Bucking, Limbing, Pruning and Felling	18
7.1 Bucking	18
7.2 Cutting Logs Under Tension	19
7.3 Limbing	20
7.4 Pruning	20
7.5 Felling	21
8 Maintenance, Repair and Storage	24
8.1 Warnings and Instructions	24
9 Before Starting Work	25
9.1 Preparing the Chain Saw for Operation	25
10 Assembling the Chain Saw	25
10.1 Cutting Attachment	25
10.2 Mounting and Removing the Guide Bar and Chain	25
10.3 Tensioning the Saw Chain	28
11 Lubricating the Saw Chain and Guide Bar	29
11.1 Bar and Chain Lubricant	29
11.2 Filling the Chain Oil Tank	29
12 The Chain Brake	30
12.1 Engaging the Chain Brake	30
12.2 Disengaging the Chain Brake	30
12.3 Maintaining the Chain Brake	30
13 Mixing Fuel and Refueling the Chain Saw	31
13.1 Mixing Fuel	31
13.2 Refueling the Chain Saw	32
14 Starting the Engine	33
14.1 Holding the Chain Saw	33
14.2 Starting Procedure	33
14.3 Pre-Starting Procedure	33
14.4 Starting the Engine	34
15 Shutting Off the Engine	34
15.1 Shutting Off the Engine	34
16 Checking the Chain Saw	35
16.1 Checking the Operation of the Chain Brake	35
16.2 Testing the Controls	35
16.3 Testing Chain Lubrication	35
17 After Finishing Work	36
17.1 Preparing for Transportation or Storage	36
18 Transporting	36
18.1 Transporting the Chain Saw	36
19 Storing	36
19.1 Storing the Chain Saw	36
20 Cleaning	37
20.1 Cleaning the Chain Saw	37
20.2 Cleaning the Guide Bar and Saw Chain	37
20.3 Cleaning the Air Filter	37
20.4 Cleaning the Spark Plug	38
21 Inspection and Maintenance	39
21.1 Inspection and Maintenance Chart	39
21.2 Inspecting and Maintaining the Chain Saw	40
21.3 Inspecting and Maintaining the Chain Sprocket	40
21.4 Inspecting and Maintaining the Guide Bar	40
21.5 Inspecting, Maintaining and Sharpening the Saw Chain	41
22 Troubleshooting Guide	43
22.1 Chain saw	43
22.2 Adjusting Idle Speed	44
22.3 Clearing the Combustion Chamber	44
23 Specifications	45
23.1 EPA	45
23.2 STIHL MS 162, 172	45
23.3 Chain Sprockets	45
23.4 Minimum Groove Depth of Guide Bars	45
23.5 Depth Gauge Setting	45
23.6 Symbols on the Chain Saw	45
23.7 Engineering Improvements	46
24 Combinations of Guide Bars and Saw Chains	46
24.1 STIHL MS 162, MS 172	46
25 Replacement Parts and Equipment	48
25.1 Genuine STIHL Replacement Parts	48
26 Disposal	48
26.1 Disposal of the Power Tool	48
27 Limited Warranty	48
27.1 STIHL Incorporated Limited Warranty Policy	48
28 Emission Control Warranty	48
28.1 STIHL Incorporated Federal Emission Control Warranty Statement	48
29 Trademarks	50
29.1 Registered Trademarks	50
29.2 Common Law Trademarks	50
30 Addresses	50
30.1 STIHL Incorporated	50
1 Introducción	51
2 Acerca de este manual de instrucciones	51
2.1 Palabras identificadoras	51
2.2 Símbolos en el texto	51
3 Componentes importantes	52
3.1 Motosierra	52
3.2 Características opcionales	53
4 Símbolos de seguridad en el producto	53
4.1 Motosierra	53
5 INSTRUCCIONES IMPORTANTES DE SEGURIDAD	53
5.1 Uso previsto	53
5.2 Operador	54
5.3 Equipos de protección personal	54
5.4 Motosierra	55
5.5 Instrucciones para el llenado de combustible	56
5.6 Uso de la motosierra	59
6 Contragolpe y otras fuerzas reactivas	65
6.1 Fuerzas reactivas	65
6.2 Contragolpe	65
6.3 Tirones	69
6.4 Rechazo	69
7 Técnicas adecuadas para el tronzado, el desramado, la poda y la tala básicos	70
7.1 Tronzado	70
7.2 Corte de troncos bajo tensión	71
7.3 Desrame	71
7.4 Poda	72
7.5 Tala	72
8 Mantenimiento, reparación y almacenamiento	76
8.1 Advertencias e instrucciones	76
9 Antes de empezar a trabajar	77
9.1 Preparación de la motosierra para el funcionamiento	77
10 Armado de la motosierra	77
10.1 Accesorio de corte	77
10.2 Montaje y retiro de la espada y la cadena de aserrado	77
10.3 Tensado de la cadena de sierra	80
11 Lubricación de la cadena de aserrado y de la espada	81
11.1 Lubricante de espadas y cadenas	81
11.2 Llenado del depósito de aceite de la cadena	81
12 El freno de cadena	82
12.1 Accionamiento del freno de la cadena	82
12.2 Cómo soltar el freno de la cadena	83
12.3 Mantenimiento del freno de la cadena	83
13 Mezcla del combustible y carga de combustible en la motosierra	83
13.1 Mezcla del combustible	83
13.2 Recarga de combustible de la motosierra	85
14 Arranque del motor	86
14.1 Sujeción de la motosierra	86
14.2 Procedimiento de arranque	86
14.3 Procedimiento de prearranque	87
14.4 Arranque del motor	87
15 Apagado del motor	88
15.1 Apagado del motor	88
16 Revisión de la motosierra	88
16.1 Control del funcionamiento del freno de la cadena	88
16.2 Prueba de los controles	88
16.3 Prueba de la lubricación de la cadena	89
17 Después de completar el trabajo	89
17.1 Preparación para el transporte o el almacenamiento	89
18 Transporte	89
18.1 Transporte de la motosierra	89
19 Almacenamiento	90
19.1 Almacenamiento de la motosierra	90
20 Limpieza	90
20.1 Limpieza de la motosierra	90
20.2 Limpieza de la barra guía y la cadena de sierra	91
20.3 Limpieza del filtro de aire	91
20.4 Limpieza de la bujía	92
21 Inspección y mantenimiento	93
21.1 Tabla de inspección y mantenimiento	93
21.2 Inspección y mantenimiento de la motosierra	94
21.3 Inspección y mantenimiento del piñón de la cadena	94
21.4 Inspección y mantenimiento de la espada	94
21.5 Inspección, mantenimiento y afilado de la cadena de aserrado	95
22 Guía de solución de problemas	97
22.1 Motosierra	97
22.2 Ajuste de la velocidad de marcha en vacío	98
22.3 Desobstrucción de la cámara de combustión	99
23 Especificaciones	99
23.1 E.P.A.	99
23.2 STIHL MS 162, 172	99
23.3 Piñones de la cadena	100
23.4 Profundidad mínima de ranura de las barras guía	100
23.5 Ajuste del calibrador de profundidad	100
23.6 Símbolos en la motosierra	100
23.7 Mejoramientos técnicos	100
24 Combinaciones de espadas y cadenas de aserrado	101
24.1 STIHL MS 162, MS 172	101
25 Piezas y equipos de repuesto	102
25.1 Piezas de repuesto originales de STIHL	102
26 Eliminación	102
26.1 Desecho de la herramienta motorizada	102
27 Garantía limitada	103
27.1 Política de garantía limitada de STIHL Incorporated	103
28 Garantía del sistema de control de emisiones	103
28.1 Declaración de garantía de STIHL Incorporated sobre sistemas de control de emisiones según normas federales	103
29 Marcas comerciales	105
29.1 Marcas comerciales registradas	105
29.2 Marcas comerciales por ley común	105
30 Direcciones	105

Match case Limit results 1 per page

Use of parts that are not authorized or

approved by STIHL may cause serious or fatal

injury or property damage.

–

STIHL recommends that only identical

STIHL replacement parts be used.

5.5

Fueling Instructions

Fuel

WARNING

■

Gasoline and its vapors are extremely flamma‐

ble. Your STIHL chain saw uses an oil-gaso‐

line mixture for fuel. If spilled and ignited by a

spark or other ignition source, it can cause fire

and serious burn injury or property damage.

–

Use extreme caution

when handling gasoline

or fuel mix.

–

Do not smoke or bring

any fire or flame near

the fuel or the chain

saw.

–

Note that combustible

fuel vapor may escape

from the fuel system.

Pick a Safe Location for Fueling

WARNING

■

To reduce the risk of fire and explosion while

fueling:

–

Fuel your chain saw in

a well-ventilated area,

outdoors away from

flames, pilot lights,

heaters, electric

motors, and other sour‐

ces of ignition. Vapors

can be ignited by a

spark or flame many

feet away.

–

Select bare ground for

fueling and move at

least 10 ft. (3 m) from

the fueling spot before

starting the engine.

–

Wipe off any spilled fuel

before starting your

chain saw.

–

Take care not to get

fuel on your clothing. If

this happens, change

your clothing immedi‐

ately.

Allow the Engine to Cool Before Removing the

Fuel Cap

WARNING

■

Gasoline vapor pressure may build up inside

the fuel tank. The amount of pressure

depends on a number of factors, such as the

fuel used, altitude, and temperature. To

reduce the risk of burns and other personal

injury from escaping gas, vapor and fumes:

–

Always shut off the engine and allow it to

cool before removing the fuel cap.

■

The engine is air cooled. When it is shut off,

cooling air is no longer drawn across the cylin‐

der and engine temperatures will rise for sev‐

eral minutes before starting to cool. In hot

environments, cooling will take longer. To

reduce the risk of burns and other personal

injury from escaping gas vapor and fumes:

–

Allow the chain saw to cool. If you need to

refuel before completing a job, turn off the

machine and allow the engine to cool

before opening the fuel tank.

Fuel Spraying or "Geysering"

WARNING

■

Removing the cap on a pressurized fuel tank

can result in gasoline, vapors and fumes being

forcefully sprayed out from the fuel tank in all

directions. The escaping gasoline, vapors or

fumes can cause serious personal injury,

including fire and burn injury, or property dam‐

age.

■

Sometimes also referred to as “fuel geyser‐

ing,” fuel spraying is an expulsion of fuel,

vapors and fumes which can occur in hot con‐

ditions, or when the engine is hot, and the tank

is opened without allowing the saw to cool

adequately. It is more likely to occur when the

fuel tank is half full or more.

■

Pressure is caused by fuel and heat and can

occur even if the engine has not been running.

When gasoline in the fuel tank is heated (by

ambient temperatures, heat from the engine,

or other sources), vapor pressure will increase

inside the fuel tank.

■

Some blends of gasoline, particularly winter

blends, may cause tanks to pressurize more

quickly or create greater pressure. At higher

altitudes, fuel tank pressurization is more

likely.

How to Avoid Fuel Spraying

WARNING

■

Removing the fuel cap on a pressurized tank

can result in gasoline, vapors and fumes being

forcefully sprayed out from the fuel tank in all

directions. To reduce the risk of burns, serious

injuries or property damage from fuel spraying:

5 IMPORTANT SAFETY INSTRUCTIONS

English

0458-200-8621-A