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Chain Saw Kickback Standards, 6.2.3 Devices for Reducing the Risk of Kickback Injury

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6 Kickback and Other Reactive Forces location and angle of contact, the condition of the chain, and how quickly the chain is slowed or stopped, among other factors. - The type of bar and chain you use is an important factor in the occurrence and force of the kickback reaction. Some STIHL bar and chain types are designed to reduce kickback forces. - STIHL recommends the use of reduced kickback bars and low kickback chains. 6.2.2 Chain Saw Kickback Standards The following standards apply with respect to kickback: - § 5.11 of ANSI/OPEI B175.1 This standard, referred to as "the chain saw kickback standard" in this chapter, sets certain performance and design criteria related to chain saw kickback. To comply with the chain saw kickback standard: a) Chain saws with a displacement of less than 3.8 cu. in. (62 cm³): - must, in their original condition, meet a 45° computerderived kickback angle when equipped with certain cutting attachments; and - must be equipped with at least two devices to reduce the risk of kickback injury, such as a chain brake, low kickback chain, reduced kickback bar, etc. b) Chain saws with a displacement of 3.8 cu. in. (62 cm³) and above: - must be equipped with at least one device designed to reduce the risk of kickback injury, such as a chain brake, low kickback chain, reduced kickback bar, etc. The computer derived angles for chain saws below 3.8 cu. in. (62 cm³) displacement are measured by applying a computer program to test results from a kickback test machine. English WARNING ￭ Compliance with the chain saw kickback standards does not mean that the bar and chain will rotate at most 45° in a real life kickback. ￭ The computer-derived angles of the chain saw standards may bear no relationship to actual kickback bar rotation angles that may occur in a real life cutting situation. ￭ Devices designed to reduce the risk of kickback injuries may lose some of their effectiveness when they are no longer in their original condition, especially if they have been improperly maintained. - Read and follow the safety precautions and instructions in this manual. - When working, always position the chain saw such that your body is clear of the cutting attachment and outside of the cutting plane. - Follow the maintenance and service instructions in this manual. ￭ For the chain saw to meet the chain saw kickback standards, use only the following cutting attachments: - Compliant bar and chain combinations listed in "Combinations of Guide Bars and Saw Chains," @ 26; - Other replacement bar and chain combinations marked in accordance with the standards for use on the chain saw; or - Replacement chain designated "low kickback chain." 6.2.3 Devices for Reducing the Risk of Kickback Injury The STIHL Quickstop chain brake and STIHL's greenlabeled, reduced kickback bars and green-labeled, low kickback chains are designed to reduce the risk of kickback injury. 0458-787-8621-A 21

Section	Page
1 Introduction	5
2 Guide to Using this Manual	5
2.1 Signal Words	5
2.2 Symbols in Text	5
3 Main Parts	6
3.1 Chain Saw	6
4 Safety Symbols on the Product	7
4.1 Chain Saw	7
5 IMPORTANT SAFETY INSTRUCTIONS	8
5.1 Intended Use	8
5.2 Operator	8
5.3 Personal Protective Equipment	9
5.4 Chain Saw	10
5.5 Fueling Instructions	11
5.6 Using the Chain Saw	15
5.6.1 Before Operation	15
5.6.2 Starting	16
5.6.3 Holding and Controlling the Chain Saw	17
5.6.4 Working Conditions	18
5.6.5 Operating Instructions	20
6 Kickback and Other Reactive Forces	22
6.1 Reactive Forces	22
6.2 Kickback	22
6.2.1 Kickback	22
6.2.2 Chain Saw Kickback Standards	23
6.2.3 Devices for Reducing the Risk of Kickback Injury	23
6.2.4 To Avoid Kickback	26
6.3 Pull-in	27
6.4 Pushback	27
7 Emergency Situations	28
7.1 Using the Chain Saw in Emergency Situations	28
8 Proper Techniques for Basic Bucking, Limbing, Pruning and Felling	28
8.1 Bucking	28
8.2 Cutting Logs Under Tension	30
8.3 Limbing	30
8.4 Pruning	31
8.5 Felling	31
8.5.1 Felling Conditions	31
8.5.2 Escape Path	32
8.5.3 Conventional Notch	33
8.5.4 Open-faced Notch	33
8.5.5 Sapwood Cuts	34
8.5.6 Felling Back Cut	34
8.5.7 Fan Cut	35
8.5.8 Sectioning Method	35
8.5.9 Plunge-cut Method	35
9 Maintenance, Repair and Storage	36
9.1 Warnings and Instructions	36
10 Before Starting Work	37
10.1 Preparing the Chain Saw for Operation	37
11 Assembling the Chain Saw	37
11.1 Cutting Attachment	37
11.2 Mounting and Removing the Guide Bar and Chain	38
11.2.1 Mounting the Guide Bar and Chain	38
11.2.2 Removing the Guide Bar and Chain	39
11.3 Tensioning the Chain	39
11.4 Mounting and Removing the Depth Limiter	40
11.4.1 Mounting the Depth Limiter	40
11.4.2 Removing the Depth Limiter	41
11.5 Adjusting the Depth Limiter	41
12 Lubricating the Saw Chain and Guide Bar	42
12.1 Bar and Chain Lubricant	42
12.2 Filling the Chain Oil Tank	42
12.3 Adjusting the Flow of Bar and Chain Oil	43
13 The Chain Brake	44
13.1 Engaging the Chain Brake	44
13.2 Disengaging the Chain Brake	44
13.3 Maintaining the Chain Brake	45
14 Mixing Fuel and Refueling the Chain Saw	45
14.1 Mixing Fuel	45
14.2 Refueling the Chain Saw	46
15 Starting the Engine	49
15.1 Holding the Chain Saw	49
15.2 Starting the Engine	49
16 Shutting Off the Engine	50
16.1 Shutting Off the Engine	50
17 Checking the Chain Saw	51
17.1 Checking the Operation of the Chain Brake	51
17.2 Testing the Controls	51
17.3 Testing Chain Lubrication	52
18 Adjusting the Carburetor	52
18.1 STIHL M-Tronic Engine Management System	52
18.2 Calibrating the Chain Saw	52
18.3 Winter Operation	53
18.4 Summer Operation	54
19 After Finishing Work	54
19.1 Preparing for Transportation or Storage	54
20 Transporting	55
20.1 Transporting the Chain Saw	55
21 Storing	55
21.1 Storing the Chain Saw	55
22 Cleaning	56
22.1 Cleaning the Chain Saw	56
22.2 Cleaning the Guide Bar and Saw Chain	56
22.3 Cleaning the Air Filter	56
22.4 Cleaning the Spark Plug	58
23 Inspection and Maintenance	59
23.1 Inspection and Maintenance Chart	59
23.2 Inspecting and Maintaining the Chain Saw	60
23.3 Inspecting and Maintaining the Chain Sprocket	60
23.4 Inspecting and Maintaining the Guide Bar	60
23.5 Inspecting, Maintaining and Sharpening the Saw Chain	61
24 Troubleshooting Guide	65
24.1 Chain saw	65
24.2 Clearing the Combustion Chamber	66
25 Specifications	66
25.1 EPA	66
25.2 STIHL MS 462 C-M R Rescue Saw	66
25.3 Chain Sprockets	67
25.4 Minimum Groove Depth of Guide Bars	67
25.5 Depth Gauge Setting	67
25.6 Symbols on the Chain Saw	67
25.7 Engineering Improvements	68
26 Combinations of Guide Bars and Saw Chains	69
26.1 STIHL MS 462 C-M R Rescue Saw	69
27 Replacement Parts and Equipment	70
27.1 Genuine STIHL Replacement Parts	70
28 Disposal	70
28.1 Disposal of the Chain Saw	70
29 Limited Warranty	70
29.1 STIHL Incorporated Limited Warranty Policy	70
30 Emission Control Warranty	70
30.1 STIHL Incorporated Federal Emission Control Warranty Statement	70
31 Trademarks	72
31.1 Registered Trademarks	72
31.2 Common Law Trademarks	73
32 Addresses	73
32.1 STIHL Incorporated	73
1 Introducción	76
2 Acerca de este manual de instrucciones	76
2.1 Palabras identificadoras	76
2.2 Símbolos en el texto	76
3 Componentes importantes	77
3.1 Motosierra	77
4 Símbolos de seguridad en el producto	78
4.1 Motosierra	78
5 INSTRUCCIONES IMPORTANTES DE SEGURIDAD	79
5.1 Uso previsto	79
5.2 Operador	80
5.3 Equipos de protección personal	81
5.4 Motosierra	82
5.5 Instrucciones para el llenado de combustible	83
5.6 Uso de la motosierra	87
5.6.1 Antes de usar	87
5.6.2 Arranque	88
5.6.3 Sujeción y control de la motosierra	89
5.6.4 Condiciones de trabajo	91
5.6.5 Instrucciones de manejo	93
6 Contragolpe y otras fuerzas reactivas	95
6.1 Fuerzas reactivas	95
6.2 Contragolpe	95
6.2.1 Contragolpe	95
6.2.2 Normas para el contragolpe de las motosierras	96
6.2.3 Dispositivos para reducir el riesgo de lesiones por contragolpe	97
6.2.4 Para evitar el contragolpe	100
6.3 Tirones	100
6.4 Rechazo	101
7 Situaciones de emergencia	101
7.1 Uso de la motosierra en situaciones de emergencia	101
8 Técnicas adecuadas para el tronzado, el desramado, la poda y la tala básicos	102
8.1 Tronzado	102
8.2 Corte de troncos bajo tensión	103
8.3 Desrame	104
8.4 Poda	105
8.5 Tala	105
8.5.1 Condiciones de tala	105
8.5.2 Ruta de escape	106
8.5.3 Entalla convencional	107
8.5.4 Entalla de cara libre	107
8.5.5 Cortes de albura	108
8.5.6 Corte trasero de tala	108
8.5.7 Corte en abanico	109
8.5.8 Método de corte por secciones	109
8.5.9 Corte por penetración	109
9 Mantenimiento, reparación y almacenamiento	110
9.1 Advertencias e instrucciones	110
10 Antes de empezar a trabajar	111
10.1 Preparación de la motosierra para el funcionamiento:	111
11 Armado de la motosierra	111
11.1 Accesorio de corte	111
11.2 Montaje y retiro de la espada y la cadena de aserrado	112
11.2.1 Montaje de la espada y la cadena	112
11.2.2 Retiro de la espada y la cadena	113
11.3 Tensado de la cadena	113
11.4 Montaje y retiro del limitador de profundidad	114
11.4.1 Montaje del limitador de profundidad	114
11.4.2 Retiro del limitador de profundidad	115
11.5 Ajuste del limitador de profundidad	116
12 Lubricación de la cadena de aserrado y de la espada	116
12.1 Lubricante de espadas y cadenas	116
12.2 Llenado del depósito de aceite de la cadena	117
12.3 Ajuste del flujo del aceite de la espada y la cadena	118
13 El freno de cadena	119
13.1 Accionamiento del freno de la cadena	119
13.2 Cómo soltar el freno de la cadena	119
13.3 Mantenimiento del freno de la cadena	120
14 Mezcla del combustible y carga de combustible en la motosierra	120
14.1 Mezcla del combustible	120
14.2 Carga de combustible en la motosierra	122
15 Arranque del motor	125
15.1 Sujeción de la motosierra	125
15.2 Arranque del motor	125
16 Apagado del motor	126
16.1 Apagado del motor	126
17 Revisión de la motosierra	127
17.1 Control del funcionamiento del freno de la cadena	127
17.2 Prueba de los controles	127
17.3 Prueba de la lubricación de la cadena	128
18 Ajuste del carburador	128
18.1 Sistema de gestión del motor STIHL M-Tronic	128
18.2 Calibración de la motosierra	128
18.3 Manejo durante el invierno	129
18.4 Manejo durante el verano	130
19 Después de completar el trabajo	131
19.1 Preparación para el transporte o el almacenamiento	131
20 Transporte	131
20.1 Transporte de la motosierra	131
21 Almacenamiento	132
21.1 Almacenamiento de la motosierra	132
22 Limpieza	132
22.1 Limpieza de la motosierra	132
22.2 Limpieza de la espada y la cadena de aserrado	132
22.3 Limpieza del filtro de aire	133
22.4 Limpieza de la bujía	134
23 Inspección y mantenimiento	136
23.1 Tabla de inspección y mantenimiento	136
23.2 Inspección y mantenimiento de la motosierra	137
23.3 Revisión y mantenimiento del piñón de cadena	137
23.4 Inspección y mantenimiento de la espada	137
23.5 Inspección, mantenimiento y afilado de la cadena de aserrado	138
24 Guía de solución de problemas	142
24.1 Motosierra	142
24.2 Despejado de la cámara de combustión	144
25 Especificaciones	144
25.1 E.P.A.	144
25.2 Sierra de rescate STIHL MS 462 C-M R	145
25.3 Piñones de cadena	145
25.4 Profundidad de ranura mínima para las espadas	145
25.5 Ajuste de calibrador de profundidad	145
25.6 Símbolos en la motosierra	145
25.7 Mejoramientos técnicos	146
26 Combinaciones de espadas y cadenas de aserrado	147
26.1 Sierra de rescate STIHL MS 462 C-M R	147
27 Piezas y equipos de repuesto	148
27.1 Piezas de repuesto originales de STIHL	148
28 Eliminación	148
28.1 Eliminación de la motosierra	148
29 Garantía limitada	148
29.1 Política de garantía limitada de STIHL Incorporated	148
30 Garantía del sistema de control de emisiones	148
30.1 Declaración de garantía de STIHL Incorporated sobre sistemas de control de emisiones según normas Federales	148
31 Marcas comerciales	151
31.1 Marcas comerciales registradas	151
31.2 Marcas comerciales por ley común	151
32 Direcciones	151

Match case Limit results 1 per page

0458-787-8621-A

English

6 Kickback and Other Reactive Forces

location and angle of contact, the condition of the chain,

and how quickly the chain is slowed or stopped, among

other factors.

–

The type of bar and chain you use is an important

factor in the occurrence and force of the kickback

reaction. Some STIHL bar and chain types are

designed to reduce kickback forces.

–

STIHL recommends the use of reduced kickback

bars and low kickback chains.

6.2.2

Chain Saw Kickback Standards

The following standards apply with respect to kickback:

–

§ 5.11 of ANSI/OPEI B175.1

This standard, referred to as "the chain saw kickback

standard" in this chapter, sets certain performance and

design criteria related to chain saw kickback.

To comply with the chain saw kickback standard:

a)Chain saws with a displacement of less than 3.8 cu. in.

(62 cm³):

–

must, in their original condition, meet a 45° computer-

derived kickback angle when equipped with certain

cutting attachments; and

–

must be equipped with at least two devices to reduce

the risk of kickback injury, such as a chain brake, low

kickback chain, reduced kickback bar, etc.

b)Chain saws with a displacement of 3.8

cu. in. (62

cm³) and

above:

–

must be equipped with at least one device designed to

reduce the risk of kickback injury, such as a chain brake,

low kickback chain, reduced kickback bar, etc.

The computer derived angles for chain saws below

3.8

cu. in. (62

cm³) displacement are measured by applying

a computer program to test results from a kickback test

machine.

WARNING

￭

Compliance with the chain saw kickback standards does

not mean that the bar and chain will rotate at most 45° in

a real life kickback.

￭

The computer-derived angles of the chain saw standards

may bear no relationship to actual kickback bar rotation

angles that may occur in a real life cutting situation.

￭

Devices designed to reduce the risk of kickback injuries

may lose some of their effectiveness when they are no

longer in their original condition, especially if they have

been improperly maintained.

–

Read and follow the safety precautions and

instructions in this manual.

–

When working, always position the chain saw such

that your body is clear of the cutting attachment and

outside of the cutting plane.

–

Follow the maintenance and service instructions in

this manual.

￭

For the chain saw to meet the chain saw kickback

standards, use only the following cutting attachments:

–

Compliant bar and chain combinations listed in

"Combinations of Guide Bars and Saw Chains,"

26;

–

Other replacement bar and chain combinations

marked in accordance with the standards for use on

the chain saw; or

–

Replacement chain designated "low kickback chain."

6.2.3

Devices for Reducing the Risk of Kickback Injury

The STIHL Quickstop chain brake and STIHL's green-

labeled, reduced kickback bars and green-labeled, low

kickback chains are designed to reduce the risk of kickback

injury.