Stihl KM 56 R Instruction Manual

STIHL KM 56 R
Instruction Manual
Contents
KombiSystem 2 Guide to Using this Manual 2 Safety Precautions and Working
Techniques 3 Approved KombiTools 7 Mounting the Loop Handle 7 Carrying ring 9 Fuel 9
Original Instruction ManualPrinted on chlorine-free paper
Fueling 10 Starting / Stopping the Engine 11 Operating Instructions 13 Cleaning the Air Filter 13 Adjusting the Carburetor 14 Spark Plug 14 Engine Running Behavior 15 Storing the Machine 16 Maintenance and Care 17 Minimize Wear and Avoid Damage 18 Main Parts 19 Specifications 20 Maintenance and Repairs 21 Disposal 21
Printing inks contain vegetable oils, paper can be recycled.
EC Declaration of Conformity 21 UKCA Declaration of Conformity 22
Dear Customer,
Thank you for choosing a quality engineered STIHL product.
It has been built using modern production techniques and comprehensive quality assurance. Every effort has been made to ensure your satisfaction 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
© ANDREAS STIHL AG & Co. KG, 2021
0458-540-0121-D. VA0.H21.
0000000933_027_GB
KM 56 R, KM 56 RC
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process with electronic systems.
1
English
KombiSystem Guide to Using this Manual
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 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 power tool for the first time and keep them in a safe place for future reference.
Pictograms
The meanings of the pictograms attached to the machine are explained in this manual.
Depending on the model concerned, the following 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
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.
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.
Therefore, some changes, modifications and improvements may not be covered in this manual.
Tube of grease
Intake air: Summer operation
Intake air: Winter operation
Handle heating
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KM 56 R, KM 56 RC
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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 operation. 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 rested, in good physical health and in good mental condition.
If you have any condition that might be aggravated by strenuous work, check with your doctor before operating a machine.
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 persons 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 purposes – risk of accidents!
Do not operate the KombiEngine without a properly 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 accidents 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.
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.
KM 56 R, KM 56 RC
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002BA271 KN
Transporting the machine
Always stop the engine.
By vehicle: When transporting in a vehicle, properly 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.
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 screw-type fuel cap as securely as possible.
This helps reduce the risk of unit vibrations causing 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!
Before starting
Check that your power tool is properly assembled 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, 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 position 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 harness: 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.
Starting the engine
Start the engine at least 3 meters from the fueling 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
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KM 56 R, KM 56 RC
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002BA273 KN
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 – flywheel effect.
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.
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 left­handed.
While working
In the event of impending danger or in an emergency, 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 feeling 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.
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 contain unburned hydro­carbons and benzene. Never run the engine indoors or in poorly venti­lated locations, even if your model is equipped with a catalytic converter.
To reduce the risk of serious or fatal injury from breathing toxic fumes, ensure proper ventilation when working in trenches, hollows or other confined locations.
To reduce the risk of accidents, stop work immediately in the event of nausea, headache, visual disturbances (e.g. reduced field of vision), problems with hearing, dizziness, deterioration in ability to concentrate. Apart from other possibilities, these symptoms may be caused by an excessively 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. Combustible fuel vapor may escape from the fuel system.
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Dust, fumes and smoke produced while working may be hazardous to health! Wear respiratory protection in case of heavy dust or smoke emission.
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 attachment.
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 circulation (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.
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 performed by a servicing dealer.
STIHL recommends that you have servicing and repair work carried out exclusively by an authorized 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 adjustments.
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 intervals.
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 condition, 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.
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002BA586 KN
002BA587 KN
4
002BA588 KN
3
5
3
5
1 2
1 2
Approved KombiTools
The following STIHL KombiTools may be attached to the KombiEngine:
KombiTool FS-KM Scythe with mowing
FS-KM
FSB-KM Scythe with mowing
HL-KM 145° Long reach hedge
HL-KM 0° Long-reach hedge
FH-KM 145° Scrub cutter BG-KM Blower HT-KM Pole pruner BF-KM Cultivator FCB-KM Edger FCS-KM Edger SP-KM Harvesters KB-KM Bristle brush KW-KM Sweeper drum
1)
1)
The included barrier bar on the loop handle must be used - see also "Mounting the Loop Handle”
Intended use
head Scythe with grass
cutting blade
head
trimmer, adjustable
trimmer
assembly
Mounting the Loop Handle
The new machine is delivered with the loop handle pre-assembled on the unit.
Using the Barrier Bar
The barrier bar comes as a standard with the machine and must be mounted to the loop handle.
Mounting the Barrier Bar
N Take out the screws (1) and remove
them along with washers (2) and nuts (3)
N Remove the loop handle (4) and
clamps (5)
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English
2
002BA098 KN
1
1
5
2
4
002BA589 KN
3
6
7
7
A
002BA598 KN
N Insert the square nuts (1) in the
barrier bar (2) – the holes must line up
N Insert the clamp (3) in the loop
handle (4) and position them together on the shaft (5)
N Position the clamp (6) against the
shaft
N Position the barrier bar (2) – note
position!
N Line up the holes N Insert the screws (7) in the holes
and screw them into the barrier bar as far as they will go
N Go to "Adjusting and Securing the
Loop Handle"
Always leave the barrier bar attached.
Orienting and Securing the Loop Handle
By changing the distance (A), the handle can be moved into the best position for the operator and application.
N Secure the loop handle N Line up the loop handle N Tighten down the screws firmly –
lock the nuts if necessary
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547BA008 KN
Carrying ring
The carrying ring is integrated in the front end of the control handle.
Fuel
Your engine requires a mixture of gasoline and engine oil.
WARNING
For health reasons, avoid direct skin contact with gasoline and avoid inhaling gasoline vapor.
STIHL MotoMix
STIHL recommends the use of STIHL MotoMix. This ready-to-use fuel mix contains no benzol or lead, has a high octane rating and ensures that you always use the right mix ratio.
STIHL MotoMix uses STIHL HP Ultra two-stroke engine oil for an extra long engine life.
MotoMix is not available in all markets.
Mixing Fuel
Gasoline with an ethanol content of more than 10% can cause running problems in engines with a manually adjustable carburetor and should not be used in such engines.
Engines equipped with M-Tronic deliver full power when run on gasoline with an ethanol content of up to 25% (E25).
Engine Oil
If you mix the fuel yourself, use only STIHL two-stroke engine oil or another high-performance engine oil in accordance with JASO FB, JASO FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L-EGD.
STIHL specifies STIHL HP Ultra two­stroke engine oil or an equivalent high­performance engine oil in order to maintain emission limits over the machine’s service life.
Mix Ratio
STIHL 50:1 two-stroke engine oil: 50 parts gasoline to 1 part oil
Examples
KM 56 R, KM 56 RC
NOTICE
Unsuitable fuels or lubricants or mix ratios other than those specified may result in serious damage to the engine. Poor quality gasoline or engine oil may damage the engine, sealing rings, hoses and the fuel tank.
Gasoline
Use only high-quality brand-name gasoline with a minimum octane rating of 90 – leaded or unleaded.
Gasoline STIHL engine oil 50:1 Liters Liters (ml) 1 0.02 (20) 5 0.10 (100) 10 0.20 (200) 15 0.30 (300) 20 0.40 (400) 25 0.50 (500)
N Use a canister approved for storing
fuel. Pour oil into canister first, then add gasoline and mix thoroughly.
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English
547BA045 KN
002BA447 KN
002BA448 KN
Storing Fuel
Store fuel only in approved safety-type fuel canisters in a dry, cool and safe location protected from light and the sun.
Fuel mix ages – only mix sufficient fuel for a few weeks work. Do not store fuel mix for longer than 30 days. Exposure to light, the sun, low or high temperatures can quickly make the fuel mix unusable.
STIHL MotoMix may be stored for up to 2 years without any problems.
N Thoroughly shake the mixture in the
canister before fueling your machine.
WARNING
Pressure may build up in the canister – open it carefully.
N Clean the fuel tank and canister
from time to time.
Dispose of remaining fuel and cleaning fluid properly in accordance with local regulations and environmental requirements.
Fueling
Preparations
N Before fueling, clean the filler cap
and the area around it to ensure that no dirt falls into the tank.
N Position the machine so that the
filler cap is facing up.
Opening screw-type tank cap
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).
Closing screw-type tank cap
N Place the cap in the opening. N Turn the cap clockwise as far as
stop and tighten it down as firmly as possible by hand.
10
N Turn the cap counterclockwise until
it can be removed from the tank opening.
N Remove the cap.
KM 56 R, KM 56 RC
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002BA269 KN
1
3
2
4
547BA015 KN
5
547BA016 KN
5
547BA017 KN
547BA018 KN
Starting / Stopping the Engine
Controls
1 Throttle trigger lockout 2 Throttle trigger 3 Stop switch with Run and 0 = Stop
positions.
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 ignition is switched off. The ignition is switched on again automatically after the engine stops.
Starting the Engine
N Press the manual fuel pump
bulb (4) at least five times – even if the bulb is filled with fuel.
Cold engine (cold start)
N Press in the choke lever (5) and turn
it to g at the same time.
Warm engine (warm start)
N Press in the choke lever (5) and turn
it to < at the same time.
Also use this setting if the engine has been running but is still cold.
Cranking
N 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 manual.
N Make sure you have a safe and
secure footing.
N Hold the unit firmly on the ground
with your left hand and press down – do not touch the throttle trigger or lockout lever.
NOTICE
Do not stand or kneel on the drive tube.
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547BA020 KN
547BA021 KN
N Hold the starter grip with your right
hand.
Version without ErgoStart N Pull the starter grip slowly until you
feel it engage and then give it a brisk strong pull.
Version with ErgoStart N Pull the starter grip steadily.
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 Continue cranking until engine runs.
As soon as the engine runs
N 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.
Stopping the Engine
N Move the stop switch in the direction
of 0 – the engine stops – release the stop switch – it springs back to the run position.
Other Hints on Starting
Engine stalls in cold start position g or under acceleration
N Move the choke lever to < and
continue cranking until the engine runs.
Engine does not start in warm start position <
N Move the choke lever to g and
continue cranking until the engine runs.
If the engine does not start
N Check that all settings are correct. N Check that there is fuel in the tank
and refuel if necessary.
N Check that the spark plug boot is
properly connected.
N Repeat the starting procedure.
Fuel tank run until completely dry N After refueling, press the manual
fuel pump bulb at least five times – even if the bulb is filled with fuel.
N Set the choke lever to suit the
engine temperature.
N Now start the engine.
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Operating Instructions Cleaning the Air Filter
1
547BA022 KN
2
3
547BA023 KN
4
English
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 Move the choke lever (1) to <. N Turn the screw (2) in the filter
cover (3) counterclockwise until the cover is loose.
N Ease the filter cover (3) over the
choke lever and lift it away.
N Clean away loose dirt from around
the filter.
N Reach into the recess (4) in the filter
housing and take out the felt filter (5).
N 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. N Fit the felt filter (5) in the filter
housing, make sure it is properly seated – the arrow points to the recess.
N Move the choke lever (1) to <. N Fit the filter cover in position,
making sure the screw is square. Tighten down the screw.
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0815BA006 KN
1
547BA041 KN
2
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 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.
Spark Plug
N If the engine is down on power,
difficult to start or runs poorly at idle speed, first check the spark plug.
N 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 "Specifications".
Removing the Spark Plug
N Shut off the engine.
N Remove the spark plug boot (1). N Unscrew the spark plug (2).
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000BA039 KN
A
1
000BA045 KN
Checking the Spark Plug
N Clean dirty spark plug. N Check electrode gap (A) and
readjust if necessary – see "Specifications".
N Rectify the problems which have
caused fouling of the spark plug.
Possible causes are:
Too much oil in fuel mix.
Dirty air filter.
Unfavorable running conditions.
N Use resistor type spark plugs with a
properly tightened adapter nut.
Installing the Spark Plug
N Screw the spark plug into the
cylinder.
N Press the boot firmly onto the spark
plug.
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 (carbonization) by your servicing dealer.
STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer.
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 injuries or damage to property.
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English
Storing the Machine
For periods of 3 months or longer N Drain and clean the fuel tank in a
well ventilated area.
N Dispose of fuel properly in
accordance with local environmental requirements.
N Run the engine until the carburetor
is dry – this helps prevent the carburetor diaphragms sticking together.
N Thoroughly clean the machine – pay
special attention to the air filter.
N Remove, clean and check the
attachment. Coat metal parts with corrosion inhibiting oil.
N Store the machine in a dry and
secure location Keep out of the reach of children and other unauthorized persons.
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Maintenance and Care
The following intervals apply to normal operating conditions only. If your daily work­ing time is longer or operating conditions are difficult (very dusty work area, etc.), shorten the specified intervals accordingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
if damaged
as required
Complete machine
Control handle Check operation XX
Air filter
Manual fuel pump
Pickup body in fuel tank
Fuel tank Clean XX
Carburetor
Spark plug
Cooling inlets
All accessible screws and nuts (not adjust­ing screws)
Safety labels Replace X
1)
STIHL recommends an authorized STIHL servicing dealer.
Visual inspection (condition, leaks) X X
Clean X
Clean XX
Replace X
Check X
Have repaired by servicing dealer
Check X
Replace XXX
Check idle adjustment – the working/cut­ting attachment must not move
Readjust idle X
Readjust electrode gap X
Replace after every 100 operating hours
Visual inspection X
Clean X
Retighten X
1)
X
XX
KM 56 R, KM 56 RC
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Minimize Wear and Avoid Damage
Observing the instructions in this manual helps reduce the risk of unnecessary wear and damage to the power tool.
The power tool must be operated, maintained and stored with the due care and attention described in this owner's manual.
The user is responsible for all damage caused by non-observance of the safety precautions, operating and maintenance instructions in this manual. This includes in particular:
Alterations or modifications to the
product not approved by STIHL.
Using tools or accessories which
are neither approved or suitable for the product or are of a poor quality.
Using the product for purposes for
which it was not designed.
Using the product for sports or
competitive events.
Consequential damage caused by
continuing to use the product with defective components.
Maintenance Work
All the operations described in the "Maintenance Chart" must be performed on a regular basis. If these maintenance operations cannot be performed by the owner, they should be performed by a servicing dealer.
STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL
servicing dealer. STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information.
If these maintenance operations are not carried out as specified, the user assumes responsibility for any damage that may occur. Among other parts, this includes:
Damage to the engine due to
neglect or deficient maintenance (e.g. air and fuel filters), incorrect carburetor adjustment or inadequate cleaning of cooling air inlets (intake ports, cylinder fins).
Corrosion and other consequential
damage resulting from improper storage.
Damage to the machine resulting
from the use of poor quality replacement parts.
Parts Subject to Wear and Tear
Some parts of the power tool are subject to normal wear and tear even during regular operation in accordance with instructions and, depending on the type and duration of use, have to be replaced in good time. Among other parts, this includes:
Clutch
Filters (air, fuel)
Rewind starter
Spark plug
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KM 56 R, KM 56 RC
Main Parts
18
19
16
17
15
20
English
1 Manual fuel pump 2 Fuel cap
1
4
2
3
5
9
6
13
14
12
8
7
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
11
10
#
540BA010 STI
KM 56 R, KM 56 RC
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English
Specifications
Engine
Single-cylinder two-stroke engine
Displacement: 27.2cm Cylinder bore: 34 mm Piston stroke: 30 mm Engine power to
ISO 8893: Idle speed: 2800 rpm Cut-off speed (nomi-
nal value): 10000 rpm
Ignition system
Electronic magneto ignition
Spark plug (suppressed):
Electrode gap: 0.5 mm
Fuel system
All-position diaphragm carburetor with integral fuel pump
Fuel tank capacity: 340 cm
Weight
without fuel, without KombiTool KM 56 RC with ErgoStart: 4.3 kg
3
0.8 kW (1.1 hp) at 8500 1/min
NGK CMR 6 H, BOSCH USR 4 AC
3
(0.34 l)
Sound and Vibration Levels
For further details on compliance with Vibration Directive 2002/44/EC see www.stihl.com/vib
KombiTool
For version see "Approved KombiTools".
To determine the noise and vibration values, idle speed and nominal maximum speed are considered in the following ratios:
for FCS-KM, FCB-KM, FS-KM, FSB-KM, FH-KM and HT-KM 1 to 1
for HL-KM 1 to 4 for BF-KM, KB-KM, KW-KM,
BG-KM and SP-KM 1 to 6
The exact noise and vibration specifications depend on the KombiTool being used and are described in the User Manual of the KombiTool.
Sound pressure level L
measured
peq
according to ISO 22868, ISO 11201, ISO 11789
KM 56 RC: 90 dB(A) ... 96 dB(A)
Sound power level L
measured
w
according to ISO 22868, ISO 3744
KM 56 RC: 103 dB(A) ... 109 dB(A)
Vibration level a
to ISO 20643,
hv,eq
ISO 22867, ISO 11789
Handle, left KM 56 RC: 4.7 m/s2... 8.5 m/s
2
Handle, right KM 56 RC: 4.8 m/s
2
... 8.2 m/s
2
The K-factor in accordance with Directive 2006/42/EC is 2.0 dB(A) for the sound pressure level and sound power level; the K-factor in accordance with Directive 2006/42/EC is 2.0 m/s
2
for the vibration level.
REACH
REACH is an EC regulation and stands for the Registration, Evaluation, Authorisation and Restriction of Chemical substances.
For information on compliance with the REACH regulation (EC) No. 1907/2006 see www.stihl.com/reach.
Exhaust Emissions
The CO2value measured in the EU type approval procedure is specified at www.stihl.com/co2.
The measured CO
value was
2
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 maintenance described in this instruction manual. The type approval expires if the engine is modified in any way.
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KM 56 R, KM 56 RC
English
000BA073 KN
Maintenance and Repairs Disposal
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 authorized 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 replacement parts which have been approved by STIHL for this power tool or are technically identical. Only use high­quality replacement parts in order to avoid the risk of accidents and damage to the machine.
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).
Observe all country-specific waste disposal rules and regulations.
STIHL products must not be thrown in the garbage can. Take the product, accessories and packaging to an approved disposal site for environment­friendly recycling.
Contact your STIHL servicing dealer for the latest information on waste disposal.
EC Declaration of Conformity
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: 27.2cm
conforms to the relevant provisions of Directives 2011/65/EU, 2006/42/EC and 2014/30/EU and has been developed and manufactured in compliance with the following standards in the versions valid on the date of production:
EN ISO 12100, EN 55012, EN 61000-6-1 (in conjunction with the following KombiTools: BF-KM, BG-KM, FCB-KM, FCS-KM, FH-KM, FS-KM, FSB-KM, HL-KM, HT-KM, KB-KM, KW-KM and SP-KM)
The KombiEngine described here may be operated only in conjunction with the KombiTools approved by STIHL for use with this KombiEngine.
Technical documents deposited at:
ANDREAS STIHL AG & Co. KG Produktzulassung
The year of manufacture and serial number are applied to the product.
3
KM 56 R, KM 56 RC
21
English
Done at Waiblingen, 15.07.2021
ANDREAS STIHL AG & Co. KG
pp
Dr. Jürgen Hoffmann
Director Product Certification & Regulatory Affairs
UKCA Declaration of Conformity
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: 27.2cm
complies with the relevant provisions of the UK regulations The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012, Supply of Machinery (Safety) Regulations 2008, and Electromagnetic Compatibility Regulations 2016 and has been developed and manufactured in accordance with the versions of the following standards valid on the date of manufacture:
EN ISO 12100, EN 55012, EN 61000-6-1 (in conjunction with the following KombiTools: BF-KM, BG-KM, FCB-KM, FCS-KM, FH-KM, FS-KM, FSB-KM, HL-KM, HT-KM, KB-KM, KW-KM and SP-KM)
The KombiEngine described here may be operated only in conjunction with the KombiTools approved by STIHL for use with this KombiEngine.
Technical documents deposited at:
3
ANDREAS STIHL AG & Co. KG
The year of manufacture and serial number are indicated on the product.
Done at Waiblingen, 15.07.2021
ANDREAS STIHL AG & Co. KG
pp
Dr. Jürgen Hoffmann
Director Product Certification & Regulatory Affairs
22
KM 56 R, KM 56 RC
English
KM 56 R, KM 56 RC
23
English
24
KM 56 R, KM 56 RC
0458-540-0121-D
englisch
G
www.stihl.com
*04585400121D*
0458-540-0121-D
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