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Adjusting Idle Speed, Clearing the Combustion, Chamber

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English 22 Troubleshooting Guide Condition During sawing, the wood smokes or smells burnt. Possible Cause The chain is dull or improperly sharp‐ ened. Working technique is improper or the saw is being mis-used. Insufficient bar and chain oil. Remedy ► Properly sharpen the chain, 21.5. ► Obtain instruction on proper working technique. ► Have the chain lubrication mecha‐ nism checked by an authorized STIHL servicing dealer. 22.2 Adjusting Idle Speed ► Turn the idle speed screw (LA) one full turn counter‑clockwise. WARNING ■ To reduce the risk of personal injury from loss of control and/or contact with the saw chain, do not use your saw with incorrect idle adjust‐ ment. At correct idle speed, the chain should not move. If the chain continues moving when the engine is idling, have your saw checked and repaired by your servicing dealer. 22.3 Clearing the Combustion Chamber WARNING ■ To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press the spark plug boot snugly onto the spark plug terminal. Engine stops when idling Adjust the engine idle speed: ► Start the engine and disengage the chain brake. ► Warm up the engine by opening and closing the throttle for about 1 minute. ► If the engine continues to stop while idling, turn the idle speed screw (LA) half a turn clockwise and restart the engine. ► Turn the idle speed screw (LA) clockwise until the chain begins to run. ► Turn the idle speed screw (LA) one full turn counter‑clockwise. Saw chain moves continuously when engine is idling Adjust the saw's idle speed: ► Start the engine and disengage the chain brake. ► Warm up the engine by opening and closing throttle for about 1 minute. ► Turn the idle speed screw (LA) counter‑clock‐ wise until the chain stops rotating. 0000097436_001 0000097434_001 WARNING ■ To reduce the risk of fire, always move the Master Control Lever to the stop position before pulling the starter grip if the spark plug boot has been removed. If you believe the engine is flooded, you must clear the combustion chamber before you can start the saw. To clear the combustion chamber: ► Shut off the engine, 15.1. ► Engage the chain brake, 12.1. ► Allow the chain saw to cool down. 1 3 21 1 ► Open the shroud locks (1). ► Remove the shroud (2). ► Remove the spark plug boot (3). ► Unscrew the spark plug and dry it. ► Move the Master Control Lever to the stop position . ► Pull the starter grip and guide it back several times. The combustion chamber will be cleared. 44 0458-200-8621-A

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

Condition

Possible Cause

Remedy

During sawing, the

wood smokes or

smells burnt.

The chain is dull or improperly sharp‐

ened.

►

Properly sharpen the chain,

21.5.

Working technique is improper or the

saw is being mis-used.

►

Obtain instruction on proper working

technique.

Insufficient bar and chain oil.

►

Have the chain lubrication mecha‐

nism checked by an authorized

STIHL servicing dealer.

22.2

Adjusting Idle Speed

WARNING

■

To reduce the risk of personal injury from loss

of control and/or contact with the saw chain,

do not use your saw with incorrect idle adjust‐

ment. At correct idle speed, the chain should

not move. If the chain continues moving when

the engine is idling, have your saw checked

and repaired by your servicing dealer.

0000097436_001

Engine stops when idling

Adjust the engine idle speed:

►

Start the engine and disengage the chain

brake.

►

Warm up the engine by opening and closing

the throttle for about 1 minute.

►

If the engine continues to stop while idling,

turn the idle speed screw (LA) half a turn

clockwise and restart the engine.

►

Turn the idle speed screw (LA) clockwise until

the chain begins to run.

►

Turn the idle speed screw (LA) one full turn

counter‑clockwise.

Saw chain moves continuously when engine is

idling

Adjust the saw's idle speed:

►

Start the engine and disengage the chain

brake.

►

Warm up the engine by opening and closing

throttle for about 1 minute.

►

Turn the idle speed screw (LA) counter‑clock‐

wise until the chain stops rotating.

►

Turn the idle speed screw (LA) one full turn

counter‑clockwise.

22.3

Clearing the Combustion

Chamber

WARNING

■

To reduce the risk of fire and burn injury, use

only spark plugs authorized by STIHL. Always

press the spark plug boot snugly onto the

spark plug terminal.

WARNING

■

To reduce the risk of fire, always move the

Master Control Lever to the stop position

before pulling the starter grip if the spark plug

boot has been removed.

If you believe the engine is flooded, you must

clear the combustion chamber before you can

start the saw. To clear the combustion chamber:

►

Shut off the engine,

15.1.

►

Engage the chain brake,

12.1.

►

Allow the chain saw to cool down.

0000097434_001

►

Open the shroud locks (1).

►

Remove the shroud (2).

►

Remove the spark plug boot (3).

►

Unscrew the spark plug and dry it.

►

Move the Master Control Lever to the stop

position

►

Pull the starter grip and guide it back several

times.

The combustion chamber will be cleared.

English

22 Troubleshooting Guide

0458-200-8621-A