STIHL KM 110 R Instruction Manual

STIHL KM 110 R

WARNING

Read and follow all safety precautions in Instruction Manual – improper use can cause serious or fatal injury.

ADVERTENCIA

Lea y siga todas las precauciones de seguridad dadas en el manual de instrucciones – el uso incorrecto puede causar lesiones graves o mortales.

{

Instruction Manual Manual de instrucciones

Instruction Manual 1 - 33

Manual de instrucciones 34 - 71

Contents

English

KombiSystem 2 Guide to Using this Manual 2 Safety Precautions and Working

Techniques 3 Approved KombiTools 10 Mounting the Loop Handle 11 Adjusting the Throttle Cable 12 4-MIX Engine 12

Original Instruction ManualPrinted on chlorine-free paper

Fuel 12 Fueling 13 Starting / Stopping the Engine 14 Operating Instructions 16 Cleaning the Air Filter 16 Engine Management 17 Adjusting the Carburetor 17 Spark Arresting Screen in Muffler 18 Spark Plug 18 Replacing the Starter Rope and

Rewind Spring 20 Storing the Machine 22 Maintenance and Care 23 Main Parts 25

Printing inks contain vegetable oils, paper can be recycled.

Specifications 26 Special Accessories 27 Maintenance and Repairs 27 Disposal 28 STIHL Incorporated Federal

Emission Control Warranty Statement 28

STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 30

Trademarks 32

Allow only persons who fully understand the manuals of the KombiEngine and the KombiTool to operate this power tool combination.

To receive maximum performance and satisfaction from your STIHL power tool, it is important that you read, understand and follow the safety precautions and the operating and maintenance instructions in chapter "Safety Precautions and Working Techniques" before using your power tool. For further information you can go to www.stihlusa.com.

Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in the two manuals.

WARNING

Because this KombiEngine is the engine for a high-speed power tool, some special safety precautions must be observed to reduce the risk of personal injury. Careless or improper use may cause serious or even fatal injury.

{

0458-464-8621-E. VA3.H13.

0000000455_007_GB

KM 110 R

English

. . . .

002BA530 KN

KombiSystem

In the STIHL KombiSystem a number of different KombiEngines and KombiTools can be combined to produce a power tool. In this instruction manual the functional unit formed by the KombiEngine and KombiTools is referred to as the power tool.

Therefore, the separate instruction manuals for the KombiEngine and KombiTool should be used together for the power tool.

Always read and and make sure you understand both instruction manuals before using your power tool for the first time and keep them in a safe place for future reference.

Guide to Using this Manual

Pictograms

The meanings of the pictograms attached to or embossed on the machine are explained in this manual.

Depending on the model concerned, the following pictograms may be on your machine.

Fuel tank for gasoline and engine oil mixture

Press to operate decompression valve

Manual fuel pump

Press to operate manual fuel pump

Filler hole for gear lubricant

Air intake summer mode

Air intake winter mode

Symbols in Text

Many operating and safety instructions are supported by illustrations.

The individual steps or procedures described in the manual may be marked in different ways:

N A bullet marks a step or procedure. A description of a step or procedure that

refers directly to an illustration may contain item numbers that appear in the illustration. Example:

N Loosen the screw (1). N Lever (2) ...

In addition to the operating instructions, this manual may contain paragraphs that require your special attention. Such paragraphs are marked with the symbols and signal words described below:

DANGER

Indicates an imminent risk of severe or fatal injury.

WARNING

Indicates a hazardous situation which, if not avoided, could result in severe or fatal injury.

NOTICE

Indicates a risk of property damage, including damage to the machine or its individual components.

Handle heating

KM 110 R

English

Engineering Improvements

STIHL’s philosophy is to continually improve all of its products. As a result, engineering changes and improvements are made from time to time. Therefore, some changes, modifications and improvements may not be covered in this manual. If the operating characteristics or the appearance of your machine differs from those described in this manual, please contact your STIHL dealer for assistance.

Safety Precautions and Working Techniques

Because this KombiEngine is the engine for a high-speed power tool, special safety precautions must be observed to reduce the risk of personal injury.

It is important that you read, fully understand and observe the following safety precautions and warnings. Read the instruction manuals and the safety precautions of your KombiEngine and KombiTool periodically. Careless or improper use may cause serious or fatal injury.

Have your STIHL dealer show you how to operate your power tool. Observe all applicable local safety regulations, standards and ordinances.

WARNING

Do not lend or rent your power tool without the instruction manuals. Be sure that anyone using it understands the information contained in these manuals.

Use your power tool only for the applications described in the instruction manual of the KombiTool you are using.

WARNING

Do not use it for other purposes, since misuse may result in personal injury or property damage, including damage to the machine.

WARNING

Minors should never be allowed to use this power tool. Bystanders, especially children, and animals should not be allowed in the area where it is in use.

WARNING

To reduce the risk of injury to bystanders and damage to property, never let your power tool run unattended. When it is not in use (e.g. during a work break), shut it off and make sure that unauthorized persons do not use it.

Most of these safety precautions and warnings apply to the use of all STIHL power tools. Different models may have different parts and controls. See the appropriate section of your KombiEngine and KombiTool instruction manuals for a description of the controls and the function of the parts of your model.

Do not clean your machine with a pressure washer. The solid jet of water may damage parts of the machine.

Safe use of a KombiEngine involves

1. the operator

2. the power tool

3. the use of the power tool

KM 110 R

English

THE OPERATOR

Physical Condition You must be in good physical condition

and mental health and not under the influence of any substance (drugs, alcohol, etc.) which might impair vision, dexterity or judgment. Do not operate this machine when you are fatigued.

WARNING

Be alert – if you get tired, take a break. Tiredness may result in loss of control. Working with any power tool can be strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating this machine.

WARNING

Prolonged use of a power tool (or other machines) exposing the operator to vibrations may produce whitefinger disease (Raynaud's phenomenon) or carpal tunnel syndrome.

These conditions reduce the hand's ability to feel and regulate temperature, produce numbness and burning sensations and may cause nerve and circulation damage and tissue necrosis.

All factors which contribute to whitefinger disease are not known, but cold weather, smoking and diseases or physical conditions that affect blood vessels and blood transport, as well as high vibration levels and long periods of

exposure to vibration are mentioned as factors in the development of whitefinger disease. In order to reduce the risk of whitefinger disease and carpal tunnel syndrome, please note the following:

– Most STIHL power tools are

available with an anti-vibration ("AV") system designed to reduce the transmission of vibrations created by the machine to the operator's hands. An AV system is recommended for those persons using power tools on a regular or sustained basis.

– Wear gloves – not while using

KombiTool BG-KM – and keep your hands warm.

– Keep the AV system well

maintained. A power tool with loose components or with damaged or worn AV elements will tend to have higher vibration levels.

– Maintain a firm grip at all times, but

do not squeeze the handles with constant, excessive pressure. Take frequent breaks.

All the above-mentioned precautions do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome. Therefore, continual and regular users should closely monitor the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately.

WARNING

The ignition system of the STIHL unit produces an electromagnetic field of a very low intensity. This field may interfere with some pacemakers. To reduce the risk of serious or fatal injury,

persons with a pacemaker should consult their physician and the pacemaker manufacturer before operating this tool.

Proper Clothing

WARNING

To reduce the risk of injury, the operator should wear proper protective apparel.

WARNING

Power tool noise may damage your hearing. Wear sound barriers (ear plugs or ear mufflers) to protect your hearing. Continual and regular users should have their hearing checked regularly.

Be particularly alert and cautious when wearing hearing protection because your ability to hear warnings (shouts, alarms, etc.) is restricted.

Avoid loose-fitting jackets, scarfs, neckties, jewelry, flared or cuffed pants, unconfined long hair or anything that could become caught on branches, brush or the moving parts of the unit. Secure hair so it is above shoulder level.

For further instructions on proper clothing see the safety precautions in the instruction manual of the KombiTool you are using.

KM 110 R

English

THE POWER TOOL

For illustrations and definitions of the power tool parts see the chapter on "Main Parts."

WARNING

Never modify this power tool in any way. Only attachments supplied by STIHL or expressly approved by STIHL for use with the specific STIHL KombiEngine model are authorized. Although certain unauthorized attachments are useable with STIHL power tools, their use may, in fact, be extremely dangerous.

If this tool is subjected to unusually high loads for which it was not designed (e.g. heavy impact or a fall), always check that it is in good condition before continuing work. Check in particular that the fuel system is tight (no leaks) and that the controls and safety devices are working properly. Do not continue operating this machine if it is damaged. In case of doubt, have it checked by your STIHL servicing dealer.

THE USE OF THE POWER TOOL

Transporting the Power Tool

WARNING

Always switch off the engine and make sure the working tool has stopped before putting a power tool down. When transporting your power tool in a vehicle, properly secure it to prevent turnover, fuel spillage and damage to the power tool.

Fuel Your STIHL power tool uses an oil-

gasoline mixture for fuel (see the chapter on "Fuel" of your instruction manual).

WARNING

Gasoline is an extremely flammable 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 power tool. Note that combustible fuel vapor may escape from the fuel system.

Fueling Instructions

WARNING

To reduce the risk of serious injury from burns, never attempt to refuel the unit until it has been completely removed from the operator.

WARNING

Fuel your power tool in well-ventilated areas, outdoors. Always shut off the engine and allow it to cool before refueling. Gasoline vapor pressure may build up inside the fuel tank depending on the fuel used, the weather conditions and the tank venting system.

In order to reduce the risk of burns and other personal injury from escaping gas vapor and fumes, remove the fuel filler cap on your power tool carefully so as to allow any pressure build-up in the tank to release slowly. Never remove the fuel filler cap while the engine is running.

Select bare ground for fueling and move at least 10 feet (3 m) from the fueling spot before starting the engine. Wipe off any spilled fuel before starting your machine.

WARNING

Check for fuel leakage while refueling and during operation. If fuel leakage is found, do not start or run the engine until the leak is fixed and any spilled fuel has been wiped away. Take care not to get fuel on your clothing. If this happens, change your clothing immediately.

WARNING

In order to reduce the risk of fuel spillage and fire from an improperly tightened fuel cap, correctly position and tighten the fuel cap in the fuel tank opening.

Different models may be equipped with different fuel caps.

KM 110 R

English

001BA220 KN

001BA227 KN

001BA226 KN

Toolless cap with grip

To do this with this STIHL cap, raise the grip on the top of the cap until it is upright at a 90° angle. Insert the cap in the fuel tank opening with the raised positioning marks on the grip of the cap and on the fuel tank opening lining up. Using the grip, press the cap down firmly while turning it clockwise as far as it will go (approx. 1/4 turn).

Fold the grip flush with the top of the cap. Grip the cap and check for tightness. If the grip does not lie completely flush with the cap and the detent on the grip does not fit in the corresponding recess in the filler opening, or if the cap is loose in the filler opening, the cap is not properly seated and tightened and you must repeat the above steps.

Misaligned, damaged or broken cap N If the cap does not drop fully into the

opening when the positioning marks line up and/or if the cap does not tighten properly when twisted, the base of the cap may be prematurely rotated (in relation to the top) to the closed position. Such misalignment

can result from handling, cleaning or an improper attempt at tightening.

Left: Base of cap in closed posi-

tion (with open space)

Right: Base of cap correctly posi-

tioned for installation

N To return the cap to the open

position for installation, turn the cap (with the grip up) until it drops fully into the tank opening. Next, twist the cap counterclockwise as far as it will go (approx. 1/4 turn) – this will twist the base of the cap into the correct position. Then, twist the cap clockwise, closing it normally.

N If your cap still does not tighten

properly, it may be damaged or broken; immediately stop use of the unit and take it to your authorized STIHL dealer for repair.

Screw Cap

WARNING

Unit vibrations can cause an improperly tightened fuel filler cap to loosen or come off and spill quantities of fuel. In order to reduce the risk of fuel spillage and fire, tighten the fuel filler cap by hand as securely as possible.

See also the "Fueling" chapter in your Instruction Manual for additional information.

Before Starting

WARNING

Always check your power tool for proper condition and operation before starting, particularly the throttle trigger, throttle trigger lockout, stop switch, cutting attachment, deflector and harness. The throttle trigger must move freely and always spring back to the idle position. Never attempt to modify the controls or safety devices.

WARNING

Never operate your power tool if it is damaged, improperly adjusted or maintained, or not completely or securely assembled.

KM 110 R

English

002BA057 KN

WARNING

Check that the spark plug boot is securely mounted on the spark plug – a loose boot may cause arcing that could ignite combustible fumes and cause a fire.

Keep the handles clean and dry at all times; it is particularly important to keep them free of moisture, pitch, oil, fuel mix, grease or resin in order for you to maintain a firm grip and properly control your power tool.

Starting Start the engine at least 10 feet (3 m)

from the fueling spot, outdoors only. For specific starting instructions, see the

appropriate section of your KombiEngine and KombiTool manuals. Place the power tool on firm ground or other solid surface in an open area. Maintain good balance and secure footing.

WARNING

To reduce the risk of injury from loss of control, be absolutely sure that the working tool is clear of you and all other obstructions and objects, including the ground, because when the engine starts at starting-throttle, engine speed will be fast enough for the clutch to engage and move the working tool.

Once the engine has started, immediately blip the throttle trigger, which should release the starting throttle and allow the engine to slow down to idle.

WARNING

Your power tool is a one-person machine. Do not allow other persons in the general work area, even when starting.

WARNING

To reduce the risk of injury from loss of control, do not attempt to "drop start" your power tool.

WARNING

When you pull the starter grip, do not wrap the starter rope around your hand. Do not let the grip snap back, but guide the starter rope to rewind it properly. Failure to follow this procedure may result in injury to your hand or fingers and may damage the starter mechanism.

See also the safety precautions on Starting in the instruction manual of the KombiTool.

Important Adjustments

WARNING

To reduce the risk of personal injury from loss of control or contact with the running working tool, do not use a power tool with incorrect idle adjustment. At correct idle speed, the working tool should not move. For directions on how to adjust idle speed, see the appropriate section of your instruction manual.

If you cannot set the correct idle speed, have your STIHL dealer check your power tool and make proper adjustments and repairs.

During Operation Holding and Controlling the Power Tool

Always hold the unit firmly with both hands on the handles while you are working. Wrap your fingers and thumbs around the handles.

Your right hand should grip the rear handle. This also applies to left-handers.

WARNING

To reduce the risk of injury from loss of control, never work on a ladder or on any other insecure support.

Working Conditions Operate and start your power tool only

outdoors in a well ventilated area. Operate it under good visibility and daylight conditions only. Work carefully.

KM 110 R

English

WARNING

As soon as the engine is running, this product generates toxic exhaust fumes containing chemicals, such as unburned hydrocarbons (including benzene) and carbon monoxide, that are known to cause respiratory problems, cancer, birth defects, or other reproductive harm. Some of the gases (e.g. carbon monoxide) may be colorless and odorless. To reduce the risk of serious or fatal injury/illness from inhaling toxic fumes, never run the machine indoors or in poorly ventilated locations.

WARNING

Inhalation of certain dusts, especially organic dusts such as mold or pollen, can cause susceptible persons to have an allergic or asthmatic reaction.

Substantial or repeated inhalation of dust and other airborne contaminants, in particular those with a smaller particle size, may cause respiratory or other illnesses. Control dust at the source where possible. Use good work practices, such as operating the unit so that the wind or operating process directs any dust raised by the power tool away from the operator. Follow the recommendations of EPA/OSHA/NIOSH and occupational and trade associations with respect to

dust ("particulate matter"). When the inhalation of dust cannot be substantially controlled, i.e., kept at or near the ambient (background) level, the operator and any bystanders should wear a respirator approved by NIOSH/MSHA for the type of dust encountered.

Operating Instructions

WARNING

Do not operate your power tool using the starting throttle lock, as you do not have control of the engine speed.

In the event of an emergency, switch off the engine immediately – move the slide control / stop switch to 0 or STOP.

WARNING

Never modify your muffler. Any modification could cause an increase in heat radiation, sparks or sound level, thereby increasing the risk of fire, burn injury or hearing loss. You may also permanently damage the engine. Have your muffler serviced and repaired by your STIHL servicing dealer only.

WARNING

The muffler and other parts of the engine (e.g. fins of the cylinder, spark plug) become hot during operation and remain hot for a while after stopping the engine. To reduce risk of burns, do not touch the muffler and other parts while they are hot. Keep the area around the muffler clean. Remove excess lubricant and all debris such as pine needles, branches or leaves. Let the engine cool down

sitting on concrete, metal, bare ground or solid wood away from any combustible substances.

WARNING

An improperly mounted or damaged cylinder housing or a damaged/deformed muffler shell may interfere with the cooling process of the muffler. To reduce the risk of fire or burn injury, do not continue work with a damaged or improperly mounted cylinder housing or a damaged/deformed muffler shell.

Your muffler is furnished with a spark arresting screen designed to reduce the risk of fire from the emission of hot particles. Never operate your unit with a missing or damaged spark arresting screen. If your gas/oil mix ratio is correct (i.e., not too rich), this screen will normally stay clean as a result of the heat from the muffler and need no service or maintenance. If you experience loss of performance and you suspect a clogged screen, have your muffler maintained by a STIHL servicing dealer. Some state or federal laws or regulations may require a properly maintained spark arrestor for certain uses. See the "Maintenance, Repair and Storing" section of these Safety Precautions. Remember that the risk of a brush or forest fire is greater in hot or dry conditions.

KM 110 R

English

WARNING

Some STIHL power tools are equipped with a catalytic converter, which is designed to reduce the exhaust emissions of the engine by a chemical process in the muffler. Due to this process, the muffler does not cool down as rapidly as conventional mufflers when the engine returns to idle or is shut off. To reduce the risk of fire and burn injuries when using a catalytic converter, always set your power tool down in the upright position and never locate it where the muffler is near dry brush, grass, wood chips or other combustible materials while it is still hot.

MAINTENANCE, REPAIR AND STORING

Maintenance, replacement, or repair of the emission control devices and systems may be performed by any nonroad engine repair establishment or individual. However, if you make a warranty claim for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used, STIHL may deny coverage.

KM 110 R

WARNING

Use only identical STIHL replacement parts for maintenance and repair. Use of non-STIHL parts may cause serious or fatal injury.

Strictly follow the maintenance and repair instructions in the appropriate section of your KombiEngine and KombiTool instruction manuals. Please refer to the maintenance charts respectively the maintenance notes in these manuals.

WARNING

Always stop the engine and make sure that the working tool is stopped before doing any maintenance or repair work or cleaning the power tool. Do not attempt any maintenance or repair work not described in your KombiEngine and KombiTool instruction manuals. Have such work performed by your STIHL servicing dealer only.

WARNING

Use the specified spark plug and make sure it and the ignition lead are always clean and in good condition. Always press spark plug boot snugly onto spark plug terminal of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and the ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire.

WARNING

Never test the ignition system with the ignition wire boot removed from the spark plug or with a removed spark plug, since uncontained sparking may cause a fire.

WARNING

Do not operate your power tool if the muffler is damaged, missing or modified. An improperly maintained muffler will increase the risk of fire and hearing loss. Your muffler is equipped with a sparkarresting screen to reduce the risk of fire; never operate your power tool if the screen is missing, damaged or clogged. Remember that the risk of a brush or forest fire is greater in hot or dry weather.

In California, it is a violation of § 4442 or

§ 4443 of the Public Resources Code to use or operate gasoline-powered tools on forest-covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a complying spark arrester that is maintained in effective working order. The owner/operator of this product is responsible for properly maintaining the spark arrester. Other states or governmental entities/agencies, such as the U.S. Forest Service, may have similar requirements. Contact your local fire agency or forest service for the laws or regulations relating to fire protection requirements.

Store the power tool in a dry and high or locked location out of reach of children.

Before storing for longer than a few days, always empty the fuel tank. See chapter "Storing the machine" in this manual.

English

HT-KM

BF-KM

464BA002 KN

FCS-KM

FCB-KM

KW-KM

KB-KM

FH-KM

FS-KM

FSB-KM

BG-KM

FBD-KM

Approved KombiTools

The following STIHL KombiTools may be mounted on the KombiEngine:

KombiTool Application FS-KM Brushcutter with

mowing head

FS-KM Brushcutter with

grass cutting blade

FSB-KM Brushcutter with

mowing head

HL-KM 135° Hedge trimmer,

adjustable HL-KM 0° Hedge trimmer FH-KM 135° Power scythe BG-KM Blower HT-KM Pole pruner BF-KM Pick tines FBD-KM Redefining bed

edges FCB-KM Lawn edging FCS-KM Lawn edging KB-KM Bristle brush KW-KM PowerSweep

The barrier bar supplied with the machine must be mounted to the loop handle – see also "Mounting the Loop Handle".

KM 110 R

Mounting the Loop Handle

002BA098 KN

002BA099 KN

002BA353 KN

A barrier bar is supplied with the machine. Attach the barrier bar to the loop handle.

English

N Insert square nuts (1) in the barrier

bar (2) – the holes must line up

KM 110 R

N Insert the clamp (3) in the loop

handle (4) and position them together on the shaft (5)

N Position clamp (6) N Position barrier bar (2) – note

position!

N Line up the holes N Insert bolts (7) in the holes – and

screw them into the barrier bar as far as possible

N Fit the loop handle (4) at a distance

of (A) approx. 20 cm (8 in) forward of the control handle (8)

N Orient the loop handle N Tighten the bolts – lock the nuts if

necessary

The sleeve (9) is present depending on the country and must be located between the loop handle and control handle.

Always leave the barrier bar attached.

English

002BA163 KN

002BA161 KN

Adjusting the Throttle Cable

A properly adjusted throttle cable is the precondition for correct operation in the full throttle, starting throttle and idle positions.

N Adjust the throttle cable only when

the unit is completely and properly assembled.

N Use a suitable tool to push the slide

to the end of the slot (see illustration).

N Press down the throttle trigger

lockout (1) and squeeze the throttle trigger (2) (full throttle) – this sets the throttle cable correctly.

4-MIX Engine Fuel

The STIHL 4-MIX engine features mixture lubrication and must be run on a fuel mixture of gasoline and engine oil.

It operates otherwise on the 4-stroke principle.

This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1.

Your engine requires a mixture of highquality gasoline and two-stroke air cooled engine oil.

Use mid-grade unleaded gasoline with a minimum octane rating of 89 ((R+M)/2) and no more than 10% ethanol content.

Fuel with a lower octane rating may increase engine temperatures. This, in turn, increases the risk of piston seizure and damage to the engine.

The chemical composition of the fuel is also important. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as well. This could cause running problems or even damage the engine. For this reason STIHL recommends that you use only high-quality unleaded gasoline!

Gasoline with an ethanol content of more than 10% can cause running problems and major damage in engines with a manually adjustable carburetor and should not be used in such engines.

The ethanol content in gasoline affects engine running speed – it may be necessary to readjust the carburetor if you use fuels with various ethanol contents.

KM 110 R

English

002BA420 KN

WARNING

To reduce the risk of personal injury from loss of control and / or contact with the running cutting tool, do not use your unit with incorrect idle adjustment. At correct idle speed, the cutting tool should not move.

If your power tool shows an incorrect idle adjustment, have your STIHL dealer check your power tool and make proper adjustments and repairs.

The idle speed and maximum speed of the engine change if you switch from a fuel with a certain ethanol content to another fuel with a much higher or lower ethanol content.

This problem can be avoided by always using fuel with the same ethanol content.

Use STIHL HP Ultra oil or ask your dealer for an equivalent high quality oil to ensure the maximum performance of the product for the full lifetime.

To meet the requirements of EPA 40CFR90/1054 we recommend to use STIHL HP Ultra oil.

Do not use BIA or TCW rated (twostroke water cooled) mix oils or other mix oils that state they are for use in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.).

Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapor. When filling at the pump, first remove the container from your vehicle and place the container on the ground before filling. To reduce the risk of sparks from static

discharge and resulting fire and/or explosion, do not fill fuel containers that are sitting in or on a vehicle or trailer.

The container should be kept tightly closed in order to limit the amount of moisture that gets into the mixture.

The machine’s fuel tank should be cleaned as necessary.

Fuel mix ages

Only mix sufficient fuel for a few days work, not to exceed 3 months of storage. Store in approved fuel-containers only. When mixing, pour oil into the container first, and then add gasoline. Close the container and shake it vigorously by hand to ensure proper mixing of the oil with the fuel.

Gasoline Oil (STIHL 50:1 or equiva-

lent high-quality oils)

Liters Liters (ml)

10.02(20) 5 0.10 (100) 10 0.20 (200) 20 0.40 (400)

US gal. US fl.oz.

12.6 2 1/2 6.4

512.8 Dispose of empty mixing-oil containers

only at authorized disposal locations.

Fueling

Preparations

N Before fueling, clean the filler cap

and the area around it to ensure that no dirt falls into the tank.

Always thoroughly shake the mixture in the canister before fueling your machine.

N Position the machine so that the

filler cap is facing up.

WARNING

In order to reduce the risk of fire and personal injury from escaping gas vapor and fumes, remove the fuel filler cap carefully so as to allow any pressure build-up in the tank to release slowly.

KM 110 R

English

002BA447 KN

002BA448 KN

STOP

5 6

002BA181 KN

START

STOP-

249BA057 KN

Opening the threaded filler cap

N Turn the cap counterclockwise until

it can be removed from the tank opening.

N Remove the filler cap.

Refueling

Take care not to spill fuel while fueling and do not overfill the tank. STIHL recommends use of the STIHL filling system (special accessory).

Closing the threaded filler cap

Starting / Stopping the Engine

Controls

1 Throttle trigger lockout 2 Throttle trigger 3 Slide control

Symbol on slide control 7 h – stop symbol and arrow. To stop

the engine, push the slide control in the direction of the arrow on the stop symbol (h) to STOP-0.

Starting

N Press down the trigger lockout lever

and squeeze the throttle trigger.

N and hold them in that position. N Move the slide control to START

and hold it there.

N Now release the throttle trigger,

slide control and trigger lockout in that order. This is the starting throttle position.

N Position cap. N Turn the cap clockwise as far as it

will go and tighten it as securely as possible by hand.

Positions of slide control 4STOP-0 – engine off – the ignition is

switched off

5 F – normal run position – the engine

is running or can start

6START – the ignition is switched on

– the engine can start

N Set the choke knob (8)

KM 110 R

English

552BA014 KN

552BA015 KN

552BA016 KN

g if the engine is cold e for warm start – also use this posi-

tion if the engine has been running but is still cold.

N Press the fuel pump bulb (9) at least

five times – even if the bulb is filled with fuel.

Starting

N Place the power tool on the ground

so that it rests on the machine support: Check that the working tool is not touching the ground or any other obstacles – see also "Starting / Stopping the Engine" in the KombiTool instruction manual.

N Make sure you have a safe and

secure footing.

N Hold the unit with your left hand and

press it down firmly – your thumb should be under the fan housing.

NOTICE

Do not stand or kneel on the drive tube.

N Hold the starter grip with your right

hand.

N Pull the starter grip slowly until you

feel it engage and then give it a brisk strong pull.

NOTICE

Do not pull out the starter rope all the way – it might otherwise break.

N Do not let the starter grip snap back.

Guide it slowly back into the housing so that the starter rope can rewind properly.

N Crank the engine until it begins to

fire. After no more than five attempts, turn the choke knob to e.

N Continue cranking.

As soon as the engine runs N Blip the throttle trigger. The slide

control moves to the normal run position F – and the engine settles down to idle speed.

WARNING

Make sure the carburetor is correctly adjusted. The working tool must not rotate when the engine is idling.

Your machine is now ready for operation.

Stopping the engine

N Push the slide control in the

direction of the arrow on the stop symbol (h) to STOP-0.

At very low outside temperatures:

As soon as the engine runs: N Blip the throttle trigger to disengage

the starting throttle position. The slide control moves to the normal run position (F) – and the engine settles down to idle speed.

N Open the throttle slightly. N Warm up the engine for a short

period.

If the engine does not start

Choke knob If you did not turn the choke knob to e

quickly enough after the engine began to fire, the combustion chamber is flooded.

KM 110 R

English

273BA006 KN

N Turn the choke knob to e. N Set the slide control, lockout lever

and throttle trigger to the starting throttle position.

N Start the engine by pulling the

starter rope briskly – 10 to 20 pulls may be necessary.

If the engine still does not start

N Move the slide control to STOP-0. N Remove the spark plug – see

"Spark Plug".

N Dry the spark plug. N Crank the engine several times with

the starter to clear the combustion chamber.

N Refit the spark plug – see "Spark

Plug".

N Move the slide control to START. N Set the choke knob to e – even if

the engine is cold.

N Now start the engine.

Throttle cable adjustment N Check adjustment of throttle cable –

see chapter on "Adjusting the Throttle Cable".

Fuel tank run until completely dry N After refueling, press the fuel pump

bulb at least five times – even if the bulb is filled with fuel.

N Set the choke knob according to

engine temperature.

N Start the engine.

Operating Instructions Cleaning the Air Filter

During break-in period

A factory-new machine should not be run at high revs (full throttle off load) for the first three tank fillings. This avoids unnecessary high loads during the break-in period. As all moving parts have to bed in during the break-in period, the frictional resistances in the engine are greater during this period. The engine develops its maximum power after about 5 to 15 tank fillings.

During Operation

After a long period of full throttle operation, allow the engine to run for a short while at idle speed so that engine heat can be dissipated by the flow of cooling air. This protects enginemounted components (ignition, carburetor) from thermal overload.

After Finishing Work

Storing for a short period: Wait for the engine to cool down. Empty the fuel tank and keep the machine in a dry place, well away from sources of ignition, until you need it again. For longer out-ofservice periods – see "Storing the Machine".

If there is a noticeable loss of engine power

N Turn the choke knob to g N Take out the screw (1) and remove

the filter cover (2).

N Clean away loose dirt from around

the filter.

N Grip the filter element (3) at the

cutout (arrow) in the filter housing (4) and remove it.

N Fit a new filter element. As a

temporary measure you can knock it out on the palm of your hand or blow it out with compressed air. Do not wash.

N Replace damaged parts.

Installing the filter

N Install the filter element in the filter

housing and fit the cover.

N Insert the screw and tighten it down

firmly.

KM 110 R

English

249BA066 KN

H L

Engine Management Adjusting the Carburetor

Exhaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. carburation, ignition, timing and valve or port timing) without the addition of any major hardware.

The carburetor comes from the factory with a standard setting.

On this machine it is no longer necessary to adjust the carburetor.

It has been set at the factory to provide an optimum fuel-air mixture in all locations and operating conditions.

Adjusting Idle Speed

Engine stops while idling

N Warm up the engine for about

3 minutes.

N Turn the idle speed screw (LA)

slowly clockwise until the engine runs smoothly – the cutting attachment must not move.

Cutting attachment runs when engine is idling

N Turn the idle speed screw (LA)

counterclockwise until the cutting attachment stops running and then turn the screw about another 1/2 to 3/4 turn in the same direction.

WARNING

If the working tool or cutting attachment continues to run when the engine is idling, have your machine checked and repaired by your servicing dealer.

KM 110 R

English

249BA059 KN

249BA060 KN

249BA063 KN

Spark Arresting Screen in Muffler

In some countries the muffler is equipped with a spark arresting screen.

N If the engine is down on power,

check the spark arresting screen in the muffler.

N Wait for the muffler to cool down. N Move the slide control to STOP-0.

N Take out the screw (1).

N Take out the screw (4). N Lift the spark arresting screen (5)

and pull it out.

N Clean the spark arresting screen. If

the screen is damaged or heavily carbonized, fit a new one.

N Refit the spark arresting screen. N Insert the screw and tighten it down

firmly.

N Fit the shroud.

Spark Plug

If engine is down on power, difficult to start or runs poorly at idling speed, first check the spark plug.

Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded.

Wrong fuel mix (too much engine oil in the gasoline), a dirty air filter and unfavorable running conditions (mostly at part throttle etc.) affect the condition of the spark plug. These factors cause deposits to form on the insulator nose which may result in trouble in operation.

Removing the spark plug

N Move the slide control to STOP-0.

N Take out the screws (2) and remove

the shroud (3).

N Pull off the spark plug boot (1). N Unscrew the spark plug.

KM 110 R

English

000BA039 KN

002BA363 KN

002BA178 KN

Checking the Spark Plug

N Clean dirty spark plug. N Check electrode gap (A) and

readjust if necessary – see "Specifications".

N Use only resistor type spark plugs of

the approved range.

Rectify problems which have caused fouling of spark plug:

– Too much oil in fuel mix. – Dirty air filter. – Unfavorable running conditions,

e.g. operating at part load.

WARNING

To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press spark plug boot (1) snugly onto spark plug terminal (2) of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire.

Installing the spark plug

N Screw the spark plug (3) into the

cylinder and fit the boot (2) (press it down firmly).

KM 110 R

English

249BA061 KN

249BA013 KN

249BA014 KN

249BA015 KN

Replacing the Starter Rope and Rewind Spring

Replacing the Starter Rope

N Push the slide control in direction of

arrow h – to STOP-0.

N Take out the screws (1). N Remove the starter cover (2) from

the housing.

N Ease the spring clip (3) off the

starter post.

N Remove the rope rotor with

washer (4) and pawl (5).

N Remove the remaining rope from

the rotor and starter grip.

N Tie a simple overhand knot in the

new rope and then thread it through the top of the grip and the rope bushing (6).

N Thread the rope through the rotor

and secure it with a simple overhand knot.

N Coat the rope rotor bearing bore

with non-resinous oil.

N Slip the rotor over the starter post –

turn it back and forth to engage the anchor loop of the rewind spring.

KM 110 R

English

249BA013 KN

249BA018 KN

249BA016 KN

N Refit the pawl (5) in the rotor. N Fit the washer (4) on the starter

post.

N Use a screwdriver or suitable pliers

to fit the spring clip (3) on the starter post and over the pawl's peg – the spring clip must point counterclockwise – as shown in the illustration.

N Go to "Tensioning the Rewind

Spring".

Replacing a broken rewind spring

N Remove the rope rotor as described

in chapter on "Replacing the starter rope".

WARNING

The bits of spring may still be under tension and could fly apart when you take them out of the housing. To reduce the risk of injury, wear face protection and work gloves.

N Remove the spring housing and

pieces of spring.

N Lubricate the new spring with a few

drops of non-resinous oil.

N Position the new spring housing,

bottom plate facing up, against the cutouts (arrows).

N Push the spring housing into the

starter cover.

N Reinstall the rope rotor – then go to

"Tensioning the Rewind Spring".

N If the spring pops out of the spring

housing and uncoils: Refit it counterclockwise, starting outside and working inwards.

Tensioning the rewind spring

N Make a loop in the unwound starter

rope and use it to turn the rope rotor six full revolutions in the direction of the arrow.

N Hold the rotor steady. Pull out and

straighten the twisted rope.

N Let go of the rotor.

KM 110 R

+ 53 hidden pages