STIHL KM 56 R Multi Tool 2 Stroke Engine Instruction Manual

Instruction Manual for STIHL models including: KM 56 R Multi Tool 2-Stroke Engine, KM 56 R, Multi Tool 2-Stroke Engine, Tool 2-Stroke Engine, Stroke Engine, Engine

STIHL KM 56 R

GA

englisch

STIHL

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KM 56 RC-E - The Chain Saw Centre

STIHL KM 56 R

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0458-540-8321-D ZBA 01 01

KM 56 R

2 - 18

Instruction Manual

English
Contents
1 KombiSystem.............................................. 2 2 Guide to Using this Manual.........................2 3 Safety Precautions and Working Techni-
ques............................................................ 3 4 Approved KombiTools.................................6 5 Mounting the Loop Handle..........................7 6 Carrying ring............................................... 8 7 Fuel............................................................. 8 8 Fueling........................................................ 9 9 Starting / Stopping the Engine.................. 10 10 Operating Instructions...............................12 11 Cleaning the Air Filter............................... 12 12 Adjusting the Carburetor........................... 13 13 Spark Plug................................................ 13 14 Engine Running Behavior......................... 14 15 Storing the Machine.................................. 14 16 Inspections and Maintenance by Dealer...14 17 Maintenance and Care..............................15 18 Main Parts.................................................16 19 Specifications............................................16 20 Maintenance and Repairs......................... 17 21 Disposal.................................................... 17 22 EC Declaration of Conformity................... 17
Dear Customer,
Thank you for choosing a quality engineered STIHL product.
It has been built using modern production techni- ques and comprehensive quality assurance. Every effort has been made to ensure your satis- faction and trouble-free use of the product.
Please contact your dealer or our sales company if you have any queries concerning this product.
Your
Dr. Nikolas Stihl
1 KombiSystem
In the STIHL KombiSystem a number of different KombiEngines and KombiTools can be com- bined to produce a power tool. In this instruction manual the functional unit formed by the Kom- biEngine and KombiTool 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
2

power tool for the first time and keep them in a safe place for future reference.
2 Guide to Using this Manual
2.1 Pictograms
The meanings of the pictograms attached to the machine are explained in this manual. Depending on the model concerned, the follow- ing pictograms may be attached to your machine.
Fuel tank; fuel mixture of gasoline and engine oil Operate decompression valve
Manual fuel pump
Operate manual fuel pump
Tube of grease Intake air: Summer operation
Intake air: Winter operation
Handle heating
2.2 Symbols in text
WARNING Warning where there is a risk of an accident or personal injury or serious damage to property.
NOTICE Caution where there is a risk of damaging the machine or its individual components.
2.3 Engineering improvements
STIHL's philosophy is to continually improve all of its products. For this reason we may modify the design, engineering and appearance of our products periodically.
0458-540-8321-D

Printed on chlorine-free paper Printing inks contain vegetable oils, paper can be recycled.

Original Instruction Manual 0000006563_014_GB

3 Safety Precautions and Working Techniques
Therefore, some changes, modifications and improvements may not be covered in this man- ual.
3 Safety Precautions and Working Techniques
Special safety precautions must be observed when operating a power tool.
Both user manuals (KombiEngine and KombiTool) must be read through attentively before using the unit for the first time and kept in a safe place for future reference. Noncompliance with the user manuals may cause serious or even fatal injury.
Observe all applicable local safety regulations, e.g. by trade organizations, social insurance institutions, labor safety authorities etc.
If you have never used a power tool before: Have your dealer or other experienced user show you how to operate your machine or attend a special course to learn how to operate it.
Minors should never be allowed to use the machine except for apprentices over the age of 16 when working under supervision.
Children, animals and bystanders must remain at a distance.
When not using the machine, it must be laid down in such a way that it does not endanger anyone. Ensure that the machine cannot be used without authorization.
The user is responsible for accidents or risks involving third parties or their property.
The machine should only be provided or loaned to people familiar with this model and its opera- tion. The KombiEngine and KombiTool User Manuals should always be handed over with the machine.
The use of noise emitting power tools may be restricted to certain times by national or local regulations.
Anyone operating the machine must be well res- ted, in good physical health and in good mental condition.
If you have any condition that might be aggrava- ted by strenuous work, check with your doctor before operating a machine.

English
If you have a pacemaker: The ignition system of your machine produces an electromagnetic field of very low intensity. This field may interfere with some pacemakers. STIHL recommends that per- sons with pacemakers consult their physician and the pacemaker manufacturer to reduce any health risk.
Anyone who has consumed alcohol or drugs or medicines affecting their ability to react must not operate a power tool.
Use your power tool only for the applications described in the User Manual of the KombiTool you are using.
The machine must not be used for any other pur- poses risk of accidents!
Do not operate the KombiEngine without a prop- erly mounted KombiTool since this may result in damage to the machine.
Only use KombiTools and accessories that are explicitly approved for this power tool by STIHL or are technically identical. It is important that you read the chapter on "Approved KombiTools". If you have any questions in this respect, consult your dealer. Use only high quality parts and accessories. in order to avoid the risk of acci- dents and damage to the machine.
STIHL recommends the use of original STIHL tools and accessories. They are specifically designed to match the product and meet your performance requirements.
Never attempt to modify your power tool in any way since this may increase the risk of personal injury. STIHL excludes all liability for personal injury and damage to property caused while using unauthorized attachments.
Do not use a high-pressure washer to clean the power tool. The solid jet of water may damage parts of the unit.
3.1 Clothing and equipment
Wear proper protective clothing and equipment. Do not wear clothing which could become trapped in wood, brush or moving parts of the machine. Do not wear a scarf, necktie or jewelry. Tie up and confine long hair above your shoulders.
See also notes on "Clothing and Equipment" in the User Manual of the KombiTool you are using.

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English
3.2 Transporting the machine
Always stop the engine. By vehicle: When transporting in a vehicle, prop- erly secure your machine to prevent turnover, damage and fuel spillage. See also notes on "Transporting the Machine" in the User Manual of the KombiTool you are using.
3.3 Refueling
Gasoline is highly flammable keep away from fire or flame do not spill any fuel no smoking.
Always shut off the engine before refueling. Do not fuel a hot engine fuel may spill and cause a fire. Open the fuel cap carefully to allow any pressure build-up in the tank to release slowly and avoid fuel spillage. Only refuel the machine in a well ventilated place. If fuel has been spilled, immediately clean the machine do not allow your clothes to be splashed with fuel. If that happens, change your clothes at once.
After fueling, tighten down the screwtype fuel cap as securely as possible.
This helps reduce the risk of unit vibrations caus- ing an incorrectly tightened fuel cap to loosen or come off and spill quantities of fuel. Check for leaks. Do not start the engine if there is a fuel leak serious or fatal burns could result!
3.4 Before starting
Check that your power tool is properly assem- bled and in good condition refer to appropriate chapters in the User Manuals: Check the fuel system for leaks, especially the
visible parts, e. g., fuel cap, hose connections,
4

002BA271 KN

3 Safety Precautions and Working Techniques
manual fuel pump (only in machines with a manual fuel pump). In case of leakage and damage, do not start the engine risk of fire! Have the machine serviced by a dealer before using it Use only an approved combination of cutting attachment, deflector, handle and harness. All parts must be assembled properly and securely The stop switch must move easily to 0 Check the choke lever, throttle trigger and throttle trigger lockout for smooth action throttle trigger must return automatically to idle position. The choke lever must spring back from the g and < positions to the run posi- tion F when the throttle trigger lockout and throttle trigger are squeezed Check that the spark plug boot is secure a loose boot may cause sparking that could ignite combustible fumes and cause a fire! Never attempt to modify the controls or safety devices Keep the handles dry and clean free from oil and dirt this is important for safe control of the machine Adjust the harness and handle(s) to suit your height and reach
To reduce the risk of personal injury, do not operate your power tool if it is damaged or not properly assembled!
To prepare for emergencies when using a har- ness: Practice setting down the machine quickly. To avoid damage, do not throw the machine to the ground when practicing.
See also notes on "Before Starting" in the User Manual of the KombiTool you are using.
3.5 Starting the engine
Start the engine at least 3 meters from the fuel- ing spot, outdoors only.
Place the power tool on firm ground in an open area. Make sure you have good balance and secure footing. Hold the power tool securely. The attachment must be clear of the ground and all other obstructions because it may begin to run when the engine starts.
To reduce the risk of injury, avoid contact with the attachment
Do not drop-start the power tool start the engine as described in the User Manual. Note that the attachment continues to run for a short period after you let go of the throttle trigger fly- wheel effect.
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3 Safety Precautions and Working Techniques
Check idle speed setting: The attachment must be stationary when the engine is idling with the throttle trigger released. Keep easily combustible materials (e. g., wood chips, bark, dry grass, fuel) away from hot exhaust gases and hot muffler surfaces risk of fire! See also notes on "Starting the Engine" in the User Manual of the KombiTool you are using.
3.6 Holding and guiding the machine
Always hold the unit firmly with both hands on the handles. Make sure you always have good balance and secure footing.
Left hand on loop handle, right hand on control handle, even if you are left-handed.
3.7 While working
In the event of impending danger or in an emer- gency, switch off the engine immediately move the stop switch in the direction of 0. The correct engine idle speed is important to ensure that the attachment stops moving when you let go of the throttle trigger. If the working tool still moves at idle speed, have your dealer make proper adjustments or repairs. Check and correct the idle speed setting at regular intervals. STIHL recommends you have this work done by a STIHL servicing dealer. Be particularly alert and cautious when wearing hearing protection because your ability to hear warnings (shouts, alarms, etc.) is restricted. Take breaks when you start getting tired or feel- ing fatigue risk of accidents! Work calmly and carefully in daylight conditions and only when visibility is good. Proceed with caution, do not put others in danger.

002BA273 KN

English
Use your power tool only in the areas specified in the KombiTool User Manual.
As soon as the engine is running, the power machine generates toxic exhaust gas. These gases may be odorless and invisible and may con- tain unburned hydrocarbons and ben- zene. Never run the engine indoors or in poorly ventilated locations, even if your model is equipped with a cata- lytic converter.
To reduce the risk of serious or fatal injury from breathing toxic fumes, ensure proper ventilation when working in trenches, hollows or other con- fined locations.
To reduce the risk of accidents, stop work imme- diately in the event of nausea, headache, visual disturbances (e.g. reduced field of vision), prob- lems with hearing, dizziness, deterioration in abil- ity to concentrate. Apart from other possibilities, these symptoms may be caused by an exces- sively high concentration of exhaust gases in the work area.
Operate your power tool so that it produces a minimum of noise and emissions do not run the engine unnecessarily, accelerate the engine only when working.
To reduce the risk of fire, do not smoke while operating or standing near your power tool. Com- bustible fuel vapor may escape from the fuel sys- tem.
Dust, fumes and smoke produced while working may be hazardous to health! Wear respiratory protection in case of heavy dust or smoke emis- sion.
If your power 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 see also "Before Starting". Check in particular that the fuel system has no leaks and the safety equipment is fully operative. Never use a power tool that is no longer safe to operate. In case of doubt, contact a dealer.
Do not operate your power tool with the choke lever in the warm start position < the engine speed cannot be controlled in this position.
Before you leave the machine: Shut the engine off.
To reduce the risk of injury, always shut off the engine before changing the KombiTool or attach- ment.

0458-540-8321-D

English
3.8 Vibrations
Prolonged use of the power tool may result in vibration-induced circulation problems in the hands (whitefinger disease).
No general recommendation can be given for the length of usage because it depends on several factors.
The period of usage is prolonged by: Hand protection (wearing warm gloves) Work breaks
The period of usage is shortened by: Any personal tendency to suffer from poor cir-
culation (symptoms: frequently cold fingers, tingling sensations). Low outside temperatures. The force with which the handles are held (a tight grip restricts circulation).
Continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear (e.g. tingling sensation in fingers), seek medical advice.
3.9 Maintenance and Repairs
Service the machine regularly. Do not attempt any maintenance or repair work not described in the instruction manual. Have all other work per- formed by a servicing dealer.
STIHL recommends that you have servicing and repair work carried out exclusively by an author- ized STIHL servicing dealer. STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information.
Only use high-quality replacement parts in order to avoid the risk of accidents and damage to the machine. If you have any questions in this respect, consult a servicing dealer.
STIHL recommends the use of genuine STIHL replacement parts. These parts are specifically designed to match your machine model and meet your performance requirements.
To reduce the risk of injury from unintentional engine startup, always shut off the engine and disconnect the spark plug boot before performing any repairs, maintenance or cleaning work. Exception: Carburetor and idle speed adjust- ments.

4 Approved KombiTools

Do not turn the engine over on the starter with the spark plug boot or spark plug removed since there is otherwise a risk of fire from uncontained sparking.
To reduce the risk of fire, do not service or store your machine near open flames.
Check the fuel filler cap for leaks at regular inter- vals.
Use only a spark plug of the type approved by STIHL and make sure it is in good condition see "Specifications".
Inspect the ignition lead (insulation in good con- dition, secure connection).
Check the condition of the muffler.
To reduce the risk of fire and damage to hearing, do not operate your machine if the muffler is damaged or missing.
Do not touch a hot muffler since burn injury will result.

4 Approved KombiTools

The following STIHL KombiTools may be attached to the KombiEngine:

KombiTool FSKM FSKM 1) FSBKM HLKM 145°
HLKM 0°
FHKM 145° BGKM HTKM BFKM FCBKM FCSKM SPKM KBKM KW-KM

Intended use Scythe with mowing head Scythe with grass cutting blade Scythe with mowing head Long reach hedge trim- mer, adjustable Long-reach hedge trim- mer Scrub cutter Blower Pole pruner Cultivator Edger Edger Harvesters Bristle brush Sweeper drum assembly

1) The included barrier bar on the loop handle must be used - see also "Mounting the Loop Handle"

0458-540-8321-D

5 Mounting the Loop Handle

English

5 Mounting the Loop Handle 5.2 Mounting the Barrier Bar

002BA586 KN

The new machine is delivered with the loop han-

dle pre-assembled on the unit.

5.1 Using the Barrier Bar

The barrier bar comes as a standard with the machine and must be mounted to the loop han- dle.

002BA587 KN

Take out the screws (1) and remove them along with washers (2) and nuts (3)
Remove the loop handle (4) and clamps (5)

002BA588 KN

0458-540-8321-D

2
1 1
Insert the square nuts (1) in the barrier bar (2) the holes must line up 7

002BA098 KN

English

6 Carrying ring
5.3 Orienting and Securing the Loop Handle

A
3

6 7
7
Insert the clamp (3) in the loop handle (4) and position them together on the shaft (5)
Position the clamp (6) against the shaft Position the barrier bar (2) note position! Line up the holes Insert the screws (7) in the holes and screw
them into the barrier bar as far as they will go Go to "Adjusting and Securing the Loop Han-
dle"
Always leave the barrier bar attached.

002BA589 KN

By changing the distance (A), the handle can be moved into the best position for the operator and application. Secure the loop handle Line up the loop handle Tighten down the screws firmly lock the nuts
if necessary
6 Carrying ring

002BA598 KN

547BA008 KN

The carrying ring is integrated in the front end of the control handle.
7 Fuel
The engine requires a mixture of gasoline and engine oil.

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8 Fueling
WARNING
Avoid direct skin contact with fuel and breathing in of gasoline fumes.
7.1 STIHL MotoMix
STIHL recommends using STIHL MotoMix. This pre-blended fuel is free of benzene and lead, is distinguished by a high octane rating, and always provides the proper mixing ratio.
STIHL MotoMix uses STIHL HP Ultra two-stroke engine oil for optimum engine life.
MotoMix is not available in all markets.
7.2 Mixing fuel
NOTICE
Unsuitable fuels or a mixing ratio that deviates from the specification can lead to severe engine damage. The engine, seals, fuel lines and fuel tank may be damaged if low-quality gasoline or engine oil is used.
7.2.1 Gasoline
Use only high-quality gasoline with an octane rat- ing of at least 90 ROC leaded or unleaded.
Gasoline with an alcohol component exceeding 10% can cause impaired engine performance in engines with manually adjustable carburetors and thus should not be used in these engines.
Engines with M-Tronic deliver full engine per- formance using gasoline with an alcohol compo- nent of up to 27% (E27).
7.2.2 Engine oil
If you mix the fuel yourself, use only STIHL twostroke engine oil or another high-performance engine oil classified as JASO FB, JASO FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-LEGD.
STIHL specifies STIHL HP Ultra two-stroke engine oil or an equivalent high-performance engine oil in order to maintain emission limits over the machine's service life.
7.2.3 Mixing ratio
with STIHL two-stroke engine oil 1:50; 1:50 = 1 part oil + 50 parts gasoline

English

7.2.4 Examples

Quantity of gaso- STIHL two-stroke

line

engine oil 1:50

Liters

(ml)

0.02

(20)

0.10

(100)

0.20

(200)

0.30

(300)

0.40

(400)

0.50

(500)

Pour oil into an approved safety fuel canister first, then add gasoline and mix thoroughly

7.3 Storing fuel mixture

Store in approved safety fuel canisters only in a dry, cool and secure place protected against light and sunlight.

Fuel mixture deteriorates with age mix only as much as needed for a few weeks. Do not store fuel mixture for longer than 30 days. The fuel mixture can become unusable more quickly if exposed to light, sunlight or low or high tempera- tures.

STIHL MotoMix however can be stored for up to 5 years without any problems. Shake the canister containing the fuel mixture
thoroughly before refueling

WARNING

Pressure may have built up in the canister open it carefully.
The fuel tank and the canister in which fuel mixture is stored should be cleaned thoroughly from time to time
Residual fuel and the liquid used for cleaning must be disposed of in accordance with regula- tions and without harming the environment!
8 Fueling
8.1 Preparations

547BA045 KN

0458-540-8321-D

English

9 Starting / Stopping the Engine

Before fueling, clean the filler cap and the area 9
around it to ensure that no dirt falls into the tank.

Starting / Stopping the Engine

Position the machine so that the filler cap is facing up.

9.1 Controls

8.2 Opening screw-type tank cap

002BA447 KN

002BA269 KN

Turn the cap counterclockwise until it can be removed from the tank opening.
Remove the cap.
8.3 Filling up with fuel
Take care not to spill fuel while fueling and do not overfill the tank. STIHL recommends you use the STIHL filler nozzle (special accessory).
8.4 Closing screw-type tank cap
Place the cap in the opening. Turn the cap clockwise as far as stop and
tighten it down as firmly as possible by hand.

002BA448 KN

1 Throttle trigger lockout 2 Throttle trigger 3 Stop switch with Run and 0 = Stop positions.

9.1.1

Function of stop switch and ignition system

The stop switch is normally in the Run position, i.e. when it is not depressed: The ignition is switched on the engine is ready to start. If the stop switch is moved to the 0 position, the igni- tion is switched off. The ignition is switched on again automatically after the engine stops.

9.2 Starting the Engine

547BA015 KN

0458-540-8321-D

9 Starting / Stopping the Engine
Press the manual fuel pump bulb (4) at least five times even if the bulb is filled with fuel.
9.2.1 Cold engine (cold start)

English Hold the unit firmly on the ground with your left
hand and press down do not touch the throt- tle trigger or lockout lever.
NOTICE
Do not stand or kneel on the drive tube.

547BA016 KN

Press in the choke lever (5) and turn it to g at the same time.
9.2.2 Warm engine (warm start)

547BA020 KN

547BA017 KN

Press in the choke lever (5) and turn it to < at the same time.
Also use this setting if the engine has been run- ning but is still cold. 9.2.3 Cranking
Place the unit on the ground: Check that the working tool is not touching the ground or any other obstacles see also "Starting / Stopping the Engine" in the KombiTool instruction man- ual.
Make sure you have a safe and secure foot- ing.

547BA018 KN

Hold the starter grip with your right hand.
9.2.4 Version without ErgoStart Pull the starter grip slowly until you feel it
engage and then give it a brisk strong pull.
9.2.5 Version with ErgoStart Pull the starter grip steadily.
NOTICE
Do not pull out the starter rope all the way it might otherwise break. Do not let the starter grip snap back. Guide it
slowly back into the housing so that the starter rope can rewind properly. Continue cranking until engine runs.

0458-540-8321-D

English 9.2.6 As soon as the engine runs
Press down the throttle trigger lockout and open the throttle the choke lever moves to the run position F. After a cold start, warm up the engine by opening the throttle several times.
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.
9.3 Stopping the Engine
Move the stop switch in the direction of 0 the engine stops release the stop switch it springs back to the run position.
9.4 Other Hints on Starting
Engine stalls in cold start position g or under acceleration Move the choke lever to < and continue
cranking until the engine runs. Engine does not start in warm start position < Move the choke lever to g and continue
cranking until the engine runs. If the engine does not start Check that all settings are correct. Check that there is fuel in the tank and refuel if
necessary. Check that the spark plug boot is properly con-
nected. Repeat the starting procedure. Fuel tank run until completely dry After refueling, press the manual fuel pump
bulb at least five times even if the bulb is fil- led with fuel. Set the choke lever to suit the engine temper- ature. Now start the engine.

547BA021 KN

10 Operating Instructions
10 Operating Instructions
10.1 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 dur- ing 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.
10.2 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 engine-mounted components (ignition, carburetor) from thermal overload.
10.3 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 outof-service periods see "Storing the Machine".
11 Cleaning the Air Filter
11.1 If there is a noticeable loss of engine power
3
2 1
Move the choke lever (1) to <. Turn the screw (2) in the filter cover (3) coun-
terclockwise until the cover is loose. Ease the filter cover (3) over the choke lever
and lift it away. Clean away loose dirt from around the filter.

547BA022 KN

0458-540-8321-D

12 Adjusting the Carburetor
4
Reach into the recess (4) in the filter housing and take out the felt filter (5).
Fit a new felt filter element (5). 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.
NOTICE
Replace damaged parts. Fit the felt filter (5) in the filter housing, make
sure it is properly seated the arrow points to the recess. Move the choke lever (1) to <. Fit the filter cover in position, making sure the screw is square. Tighten down the screw.
12 Adjusting the Carburetor
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 opti- mum fuel-air mixture in all locations and operat- ing conditions.
12.1 Adjusting Idle Speed
Engine stops while idling

547BA023 KN

English Turn the idle speed screw (LA) slowly clock-
wise until the engine runs smoothly the cut- ting attachment must not move. Cutting attachment runs when engine is idling Turn the idle speed screw (LA) counterclock- wise 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 contin- ues to run when the engine is idling, have your machine checked and repaired by your servicing dealer.
13 Spark Plug
If the engine is down on power, difficult to start or runs poorly at idle speed, first check the spark plug.
Fit a new spark plug after about 100 operating hours or sooner if the electrodes are badly eroded. Install only suppressed spark plugs of the type approved by STIHL see "Specifica- tions".
13.1 Removing the Spark Plug
Shut off the engine.
1
2
Remove the spark plug boot (1). Unscrew the spark plug (2).
13.2 Checking the Spark Plug

547BA041 KN

0815BA006 KN

000BA039 KN

Warm up the engine for about 3 minutes. 0458-540-8321-D

Clean dirty spark plug.

A
13

English Check electrode gap (A) and readjust if neces-
sary see "Specifications". Rectify the problems which have caused foul-
ing of the spark plug. Possible causes are: Too much oil in fuel mix. Dirty air filter. Unfavorable running conditions.
1
WARNING
Arcing may occur if the adapter nut (1) is loose or missing. Working in an easily combustible or explosive atmosphere may cause a fire or an explosion. This can result result in serious inju- ries or damage to property. Use resistor type spark plugs with a properly
tightened adapter nut.
13.3 Installing the Spark Plug
Screw the spark plug into the cylinder. Press the boot firmly onto the spark plug.
14 Engine Running Behavior
If engine running behavior is unsatisfactory even though the air filter is clean and the carburetor is properly adjusted, the cause may be the muffler. Have the muffler checked for contamination (car- bonization) by your servicing dealer. STIHL recommends that you have servicing and repair work carried out exclusively by an author- ized STIHL servicing dealer.
15 Storing the Machine
For periods of 30 days or longer

000BA045 KN

14 Engine Running Behavior
Drain and clean the fuel tank in a well ventila- ted area.
Dispose of fuel properly in accordance with local environmental requirements.
If a manual fuel pump is fitted: Press the man- ual fuel pump at least 5 times.
Start the engine and run it at idling speed until it stops.
Thoroughly clean the machine pay special attention to the air filter.
Remove, clean and check the attachment. Coat metal parts with corrosion inhibiting oil.
Store the machine in a dry and secure location Keep out of the reach of children and other unauthorized persons.
16 Inspections and Mainte- nance by Dealer
16.1 Spark arresting screen in muf- fler
WARNING
To reduce the risk of fire caused by hot particles escaping from the machine, never operate the machine without a spark arresting screen, or with the spark arresting screen damaged. Do not modify the muffler or spark arresting screen. To reduce the risk of fire from accumulated debris such as pine needles, branches or leaves, ensure that the muffler plugs are in place before taking up work.
NOTICE
According to the law or regulations in some countries or federal states, certain operations may only be carried out if a properly serviced spark arresting screen is provided.
If the engine is down on power, check the spark arresting screen in the muffler.
If the muffler plugs are missing or damaged, mount new plugs.
STIHL recommends that maintenance and repair work be carried out only by authorized STIHL dealers.

0458-540-8321-D

Before starting work At the end of work and/or daily
Whenever tank is refilled Weekly Monthly
Annually If faulty
If damaged As required

17 Maintenance and Care
17 Maintenance and Care
The following intervals apply for normal operating conditions. The specified intervals must be short- ened accordingly when working for longer than nor- mal or under difficult cutting conditions (extensive dust, etc.).

English

Complete machine

Visual inspection (condi- X

tion, leaks)

Clean

Control handle

Function test

Air filter

Clean

replace

Manual fuel pump

check

Have repaired by a spe- cialist dealer1)

Fuel pickup body in fuel check

tank

replace

Fuel tank

Clean

Carburetor

Check idle adjustment, X

the work tool must not

turn

Readjust idle speed

Spark plug

Adjust electrode gap

Replace after every 100 hours of operation

Intake port for cooling air Visual inspection

Clean

Spark arresting screen in Check if installed

muffler

Check or replace1)

All accessible screws, nuts and bolts (not adjusting screws)

Tighten

Safety information label replace

1)STIHL recommends STIHL servicing dealers

X X

X X
X
X

0458-540-8321-D

English
18 Main Parts

14 2

18 19

15 16 17

20 14 13 12 11

9 6 78
# 10

1 Manual fuel pump 2 Fuel cap 3 Tank 4 Starter grip 5 Muffler 6 Carburetor adjusting screws 7 Choke lever 8 Air filter cover 9 Spark plug boot 10 Machine support 11 Throttle trigger 12 Throttle trigger lockout 13 Stop switch 14 Carrying ring 15 Loop handle 16 Barrier bar 17 Shaft 18 Coupling sleeve 19 Wing screw 20 Sleeve # Serial number

19 Specifications

19.1 Engine

Single-cylinder two-stroke engine

Displacement: Cylinder bore: Piston stroke:

27.2cm3 34 mm 30 mm

540BA010 STI

18 Main Parts

Engine power to ISO 8893: 0.8 kW (1.1 hp) at

8500 1/min

Idle speed:

2800 rpm

Cut-off speed (nominal 10000 rpm

value):

19.2 Ignition system

Electronic magneto ignition

Spark plug (suppressed): NGK CMR 6 H,

BOSCH USR 4AC

Electrode gap:

0.5 mm

19.3 Fuel system

All-position diaphragm carburetor with integral fuel pump

Fuel tank capacity:

340 cm3 (0.34 l)

19.4 Weight

without fuel, without KombiTool KM 56 RC with ErgoStart:

4.3 kg

19.5 Sound and Vibration Levels

For further details on compliance with Vibration Directive 2002/44/EC, see

www.stihl.com/vib

19.5.1 KombiTools

For version see "Approved KombiTools".

To determine the noise and vibration values, idle speed and nominal maximum speed are consid- ered in the following ratios:

for FCSKM, FCBKM, FSKM, 1 to 1

FSB-KM, FHKM and HTKM

for HLKM

1 to 4

for BFKM, KBKM, KWKM, BGKM1 to 6

and SPKM

The exact noise and vibration specifications depend on the KombiTool being used and are described in the User Manual of the KombiTool.

19.5.2

Sound pressure level Lpeq measured according to ISO 22868, ISO 11201, ISO 11789

KM 56 RC:

90 dB(A) ... 96 dB(A)

19.5.3 Sound power level Lw measured according to ISO 22868, ISO 3744

KM 56 RC:

103 dB(A) ... 109 dB(A)

19.5.4

Vibration level ahv,eq to ISO 20643, ISO 22867, ISO 11789

Handle, left KM 56 RC:

4.7 m/s2 ... 8.5 m/s2

0458-540-8321-D

20 Maintenance and Repairs

Handle, right KM 56 RC:

4.8 m/s2 ... 8.2 m/s2

The Kfactor in accordance with Directive 2006/42/EC is 2.0 dB(A) for the sound pressure level and sound power level; the Kfactor in accordance with Directive 2006/42/EC is 2.0 m/s2 for the vibration level.

19.6 REACH

REACH is an EC regulation and stands for the Registration, Evaluation, Authorization and Restriction of Chemical substances.
For information on compliance with the REACH regulation (EC) No. 1907/2006 see

www.stihl.com/reach

19.7 Exhaust Emissions

The CO2 value measured in the EU type appro- val procedure is specified at

www.stihl.com/co2

in the product-specific technical data.
The measured CO2 value was determined on a representative engine in accordance with a standardized test procedure under laboratory conditions and does not represent either an explicit or implied guarantee of the performance of a specific engine.
The applicable exhaust emission requirements are fulfilled by the intended usage and mainte- nance described in this User Manual. The oper- ating license shall be void if the engine is modi- fied in any way.

20 Maintenance and Repairs
Users of this machine may only carry out the maintenance and service work described in this user manual. All other repairs must be carried out by a servicing dealer.

STIHL recommends that you have servicing and repair work carried out exclusively by an author- ized STIHL servicing dealer. STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information.

When repairing the machine, only use replace- ment parts which have been approved by STIHL for this power tool or are technically identical. Only use high-quality replacement parts in order to avoid the risk of accidents and damage to the machine.

0458-540-8321-D

English
STIHL recommends the use of original STIHL replacement parts.
Original STIHL parts can be identified by the STIHL part number, the { logo and the STIHL parts symbol K (the symbol may appear alone on small parts).
21 Disposal
Contact the local authorities or your STIHL serv- icing dealer for information on disposal.
Improper disposal can be harmful to health and pollute the environment.

Take STIHL products including packaging to a suitable collection point for recycling in accord- ance with local regulations.
Do not dispose with domestic waste.

22 EC Declaration of Con- formity

ANDREAS STIHL AG & Co. KG Badstr. 115 D-71336 Waiblingen

Germany

declare under our sole responsibility that

Designation:

KombiEngine

Make:

STIHL

Series:

KM 56 R

KM 56 RC

KM 56 RC-E

Serial identification number: 4144

Displacement:

27.2cm3

conforms to the relevant provisions of Directives 2011/65/EU, 2006/42/EC and 2014/30/EU and has been developed and manufactured in com- pliance with the following standards in the ver- sions valid on the date of production:

EN ISO 12100, EN 55012, EN 6100061 (in conjunction with the following KombiTools: BFKM, BGKM, FCBKM, FCSKM, FHKM, FSKM, FSBKM, HLKM, HTKM, KBKM, KWKM and SP-KM)

000BA073 KN

English
The KombiEngine described here may be oper- ated only in conjunction with the KombiTools approved by STIHL for use with this KombiEn- gine. Technical documents deposited at: ANDREAS STIHL AG & Co. KG Produktzulassung The year of manufacture and serial number are applied to the product. Done at Waiblingen, 15.07.2021 ANDREAS STIHL AG & Co. KG pp
Dr. Jürgen Hoffmann Director Product Certification & Regulatory Affairs

22 EC Declaration of Conformity

0458-540-8321-D

22 EC Declaration of Conformity

English

0458-540-8321-D

www.stihl.com

*04585408321D*
0458-540-8321-D

References

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