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The Chain Brake

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English 12 The Chain Brake The chain oil feed rate is suitable for most applications when the oil flow adjusting screw (1) is in position E (Ematic). To increase the flow: ► Turn the oil flow adjusting screw clockwise. To reduce the flow: ► Turn the oil flow adjusting screw counter-clockwise. To increase the flow beyond the standard setting: ► Press in the end stop (2) using a suitable tool. Once the oil adjustment limiter has been pressed in, it will remain permanently in this position. ► Turn the oil flow adjusting screw clockwise. In the event of a kickback, the chain brake is designed to engage if the left hand contacts the front hand guard and pushes it forward. The chain brake is also designed to be activated by the inertia of the front hand guard if the forces are sufficiently high. When the brake is activated by inertia, the hand guard accelerates toward the bar nose, even if your hand is not behind the hand guard, e.g., during a felling back cut. Engaging the chain brake locks the chain. To manually engage the chain brake: NOTICE Depending on the setting, the oil tank may run dry before the fuel tank. Monitor the bar and chain oil level between refuelings and add bar oil if necessary. Refill the chain oil tank every time you refuel. 0000-GXX-2932-A0 NOTICE Once the oil adjustment limiter has been pressed in to allow increased flow beyond the standard setting, it will remain permanently in the depressed position. ► Push the front hand guard away from the front handle. You will hear an audible click when the front hand guard reaches the locked position. 12 The Chain Brake 12.1 Engaging the Chain Brake WARNING The chain brake will operate only if it has been properly maintained and the front hand guard has not been modified, @ 6.2. WARNING No chain brake device prevents kickback. This device is designed to reduce the risk of kickback injury, if activated, in certain kickback situations. For the chain brake to remain in good working order, it must be properly maintained, @ 6.2. NOTICE High revs with the chain brake engaged will quickly damage the powerhead and chain drive (clutch, chain brake). Always disengage chain brake before accelerating the engine and before starting work. 12.2 Disengaging the Chain Brake WARNING Before disengaging the chain brake and accelerating the engine, be sure that the guide bar and saw chain are clear of you and all other obstructions and objects, including the ground, @ 5.6. 38 0458-790-8621-A

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	16
5.6.4 Working Conditions	18
5.6.5 Operating Instructions	19
6 Kickback and Other Reactive Forces	21
6.1 Reactive Forces	21
6.2 Kickback	22
6.2.1 Kickback	22
6.2.2 Chain Saw Kickback Standards	22
6.2.3 Devices for Reducing the Risk of Kickback Injury	23
6.2.4 To Avoid Kickback	26
6.3 Pull-in	26
6.4 Pushback	27
7 Proper Techniques for Basic Bucking, Limbing, Pruning and Felling	27
7.1 Bucking	27
7.2 Cutting Logs Under Tension	28
7.3 Limbing	28
7.4 Pruning	29
7.5 Felling	30
7.5.1 Felling Conditions	30
7.5.2 Escape Path	31
7.5.3 Conventional Notch	31
7.5.4 Open-faced Notch	32
7.5.5 Sapwood Cuts	32
7.5.6 Felling Back Cut	32
7.5.7 Fan Cut	33
7.5.8 Sectioning Method	33
7.5.9 Plunge-cut Method	34
8 Maintenance, Repair and Storage	35
8.1 Warnings and Instructions	35
9 Before Starting Work	35
9.1 Preparing the Chain Saw for Operation	35
10 Assembling the Chain Saw	36
10.1 Cutting Attachment	36
10.2 Mounting and Removing the Guide Bar and Chain	36
10.2.1 Mounting the Guide Bar and Chain	36
10.2.2 Removing the Guide Bar and Chain	37
10.3 Tensioning the Chain	37
11 Lubricating the Saw Chain and Guide Bar	38
11.1 Bar and Chain Lubricant	38
11.2 Filling the Chain Oil Tank	38
11.3 Adjusting the Flow of Bar and Chain Oil	39
12 The Chain Brake	40
12.1 Engaging the Chain Brake	40
12.2 Disengaging the Chain Brake	40
12.3 Maintaining the Chain Brake	41
13 Mixing Fuel and Refueling the Chain Saw	41
13.1 Mixing Fuel	41
13.2 Refueling the Chain Saw	42
14 Starting the Engine	45
14.1 Holding the Chain Saw	45
14.2 Starting the Engine	45
15 Shutting Off the Engine	46
15.1 Shutting Off the Engine	46
16 Checking the Chain Saw	47
16.1 Checking the Operation of the Chain Brake	47
16.2 Testing the Controls	47
16.3 Testing Chain Lubrication	48
17 Adjusting the Carburetor	48
17.1 STIHL M-Tronic Engine Management System	48
17.2 Calibrating the Chain Saw	48
17.3 Winter Operation	49
17.4 Summer Operation	50
18 After Finishing Work	50
18.1 Preparing for Transportation or Storage	50
19 Transporting	51
19.1 Transporting the Chain Saw	51
20 Storing	51
20.1 Storing the Chain Saw	51
21 Cleaning	52
21.1 Cleaning the Chain Saw	52
21.2 Cleaning the Guide Bar and Saw Chain	52
21.3 Cleaning the Air Filter	52
21.4 Cleaning the Spark Plug	54
22 Inspection and Maintenance	55
22.1 Inspection and Maintenance Chart	55
22.2 Inspecting and Maintaining the Chain Saw	56
22.3 Inspecting and Maintaining the Chain Sprocket	56
22.4 Inspecting and Maintaining the Guide Bar	56
22.5 Inspecting, Maintaining and Sharpening the Saw Chain	57
23 Troubleshooting Guide	61
23.1 Chain saw	61
23.2 Clearing the Combustion Chamber	62
24 Specifications	62
24.1 EPA	62
24.2 STIHL MS 462 C-M	62
24.3 Chain Sprockets	63
24.4 Minimum Groove Depth of Guide Bars	63
24.5 Depth Gauge Setting	63
24.6 Symbols on the Chain Saw	63
24.7 Engineering Improvements	64
25 Combinations of Guide Bars and Saw Chains	65
25.1 STIHL MS 462 C-M	65
26 Replacement Parts and Equipment	66
26.1 Genuine STIHL Replacement Parts	66
27 Disposal	66
27.1 Disposal of the Chain Saw	66
28 Limited Warranty	66
28.1 STIHL Incorporated Limited Warranty Policy	66
29 Emission Control Warranty	66
29.1 STIHL Incorporated Federal Emission Control Warranty Statement	66
30 Trademarks	68
30.1 Registered Trademarks	68
30.2 Common Law Trademarks	69
31 Addresses	69
31.1 STIHL Incorporated	69
1 Introducción	72
2 Acerca de este manual de instrucciones	72
2.1 Palabras identificadoras	72
2.2 Símbolos en el texto	72
3 Componentes importantes	73
3.1 Motosierra	73
4 Símbolos de seguridad en el producto	74
4.1 Motosierra	74
5 INSTRUCCIONES IMPORTANTES DE SEGURIDAD	75
5.1 Uso previsto	75
5.2 Operador	75
5.3 Equipos de protección personal	76
5.4 Motosierra	77
5.5 Instrucciones para el llenado de combustible	78
5.6 Uso de la motosierra	83
5.6.1 Antes de usar	83
5.6.2 Arranque	84
5.6.3 Sujeción y control de la motosierra	85
5.6.4 Condiciones de trabajo	86
5.6.5 Instrucciones de manejo	88
6 Contragolpe y otras fuerzas reactivas	90
6.1 Fuerzas reactivas	90
6.2 Contragolpe	91
6.2.1 Contragolpe	91
6.2.2 Normas para el contragolpe de las motosierras	91
6.2.3 Dispositivos para reducir el riesgo de lesiones por contragolpe	92
6.2.4 Para evitar el contragolpe	95
6.3 Tirones	96
6.4 Rechazo	96
7 Técnicas adecuadas para el tronzado, el desramado, la poda y la tala básicos	97
7.1 Tronzado	97
7.2 Corte de troncos bajo tensión	98
7.3 Desrame	98
7.4 Poda	99
7.5 Tala	100
7.5.1 Condiciones de tala	100
7.5.2 Ruta de escape	101
7.5.3 Entalla convencional	101
7.5.4 Entalla de cara libre	102
7.5.5 Cortes de albura	102
7.5.6 Corte trasero de tala	102
7.5.7 Corte en abanico	103
7.5.8 Método de corte por secciones	103
7.5.9 Corte por penetración	104
8 Mantenimiento, reparación y almacenamiento	105
8.1 Advertencias e instrucciones	105
9 Antes de empezar a trabajar	106
9.1 Preparación de la motosierra para el funcionamiento:	106
10 Armado de la motosierra	106
10.1 Accesorio de corte	106
10.2 Montaje y retiro de la espada y la cadena de aserrado	106
10.2.1 Montaje de la espada y la cadena	106
10.2.2 Retiro de la espada y la cadena	108
10.3 Tensado de la cadena	108
11 Lubricación de la cadena de aserrado y de la espada	109
11.1 Lubricante de espadas y cadenas	109
11.2 Llenado del depósito de aceite de la cadena	109
11.3 Ajuste del flujo del aceite de la espada y la cadena	110
12 El freno de cadena	111
12.1 Accionamiento del freno de la cadena	111
12.2 Cómo soltar el freno de la cadena	112
12.3 Mantenimiento del freno de la cadena	112
13 Mezcla del combustible y carga de combustible en la motosierra	112
13.1 Mezcla del combustible	112
13.2 Carga de combustible en la motosierra	114
14 Arranque del motor	117
14.1 Sujeción de la motosierra	117
14.2 Arranque del motor	117
15 Apagado del motor	118
15.1 Apagado del motor	118
16 Revisión de la motosierra	119
16.1 Control del funcionamiento del freno de la cadena	119
16.2 Prueba de los controles	119
16.3 Prueba de la lubricación de la cadena	120
17 Ajuste del carburador	120
17.1 Sistema de gestión del motor STIHL M-Tronic	120
17.2 Calibración de la motosierra	120
17.3 Manejo durante el invierno	121
17.4 Manejo durante el verano	122
18 Después de completar el trabajo	123
18.1 Preparación para el transporte o el almacenamiento	123
19 Transporte	123
19.1 Transporte de la motosierra	123
20 Almacenamiento	124
20.1 Almacenamiento de la motosierra	124
21 Limpieza	124
21.1 Limpieza de la motosierra	124
21.2 Limpieza de la espada y la cadena de aserrado	124
21.3 Limpieza del filtro de aire	125
21.4 Limpieza de la bujía	126
22 Inspección y mantenimiento	128
22.1 Tabla de inspección y mantenimiento	128
22.2 Inspección y mantenimiento de la motosierra	129
22.3 Revisión y mantenimiento del piñón de cadena	129
22.4 Inspección y mantenimiento de la espada	129
22.5 Inspección, mantenimiento y afilado de la cadena de aserrado	130
23 Guía de solución de problemas	134
23.1 Motosierra	134
23.2 Despejado de la cámara de combustión	136
24 Especificaciones	136
24.1 E.P.A.	136
24.2 STIHL MS 462 C-M	137
24.3 Piñones de cadena	137
24.4 Profundidad de ranura mínima para las espadas	137
24.5 Ajuste de calibrador de profundidad	137
24.6 Símbolos en la motosierra	137
24.7 Mejoramientos técnicos	138
25 Combinaciones de espadas y cadenas de aserrado	139
25.1 STIHL MS 462 C-M	139
26 Piezas y equipos de repuesto	140
26.1 Piezas de repuesto originales de STIHL	140
27 Eliminación	140
27.1 Eliminación de la motosierra	140
28 Garantía limitada	140
28.1 Política de garantía limitada de STIHL Incorporated	140
29 Garantía del sistema de control de emisiones	140
29.1 Declaración de garantía de STIHL Incorporated sobre sistemas de control de emisiones según normas Federales	140
30 Marcas comerciales	143
30.1 Marcas comerciales registradas	143
30.2 Marcas comerciales por ley común	143
31 Direcciones	144

Match case Limit results 1 per page

0458-790-8621-A

English

12 The Chain Brake

The chain oil feed rate is suitable for most applications when

the oil flow adjusting screw (1) is in position

(Ematic).

To increase the flow:

►

Turn the oil flow adjusting screw clockwise.

To reduce the flow:

►

Turn the oil flow adjusting screw counter-clockwise.

To increase the flow beyond the standard setting:

►

Press in the end stop (2) using a suitable tool. Once the

oil adjustment limiter has been pressed in, it will remain

permanently in this position.

►

Turn the oil flow adjusting screw clockwise.

NOTICE

Depending on the setting, the oil tank may run dry before the

fuel tank. Monitor the bar and chain oil level between

refuelings and add bar oil if necessary. Refill the chain oil

tank every time you refuel.

NOTICE

Once the oil adjustment limiter has been pressed in to allow

increased flow beyond the standard setting, it will remain

permanently in the depressed position.

12.1

Engaging the Chain Brake

WARNING

The chain brake will operate only if it has been properly

maintained and the front hand guard has not been modified,

6.2.

WARNING

No chain brake device prevents kickback. This device is

designed to reduce the risk of kickback injury, if activated, in

certain kickback situations. For the chain brake to remain in

good working order, it must be properly maintained,

6.2.

In the event of a kickback, the chain brake is designed to

engage if the left hand contacts the front hand guard and

pushes it forward.

The chain brake is also designed to be activated by the

inertia of the front hand guard if the forces are sufficiently

high. When the brake is activated by inertia, the hand guard

accelerates toward the bar nose, even if your hand is not

behind the hand guard, e.g., during a felling back cut.

Engaging the chain brake locks the chain. To manually

engage the chain brake:

►

Push the front hand guard away from the front handle.

You will hear an audible click when the front hand guard

reaches the locked position.

NOTICE

High revs with the chain brake engaged will quickly damage

the powerhead and chain drive (clutch, chain brake). Always

disengage chain brake before accelerating the engine and

before starting work.

12.2

Disengaging the Chain Brake

WARNING

Before disengaging the chain brake and accelerating the

engine, be sure that the guide bar and saw chain are clear

of you and all other obstructions and objects, including the

ground,

5.6.

The Chain Brake

0000-GXX-2932-A0