{
STIHL KM 55 R
Instruction Manual Manual de instrucciones
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 1 - 29
Manual de instrucciones 31 - 63
Contents
|
|
KombiSystem |
2 |
|
|
|
Guide to Using this Manual |
2 |
|
|
|
Safety Precautions and Working |
|
|
Manual |
|
Techniques |
3 |
|
|
Approved KombiTools |
10 |
||
Instruction |
|
Fuel |
12 |
|
|
|
Mounting the Loop Handle |
11 |
|
Original |
|
Fueling |
13 |
|
|
Starting / Stopping the Engine |
13 |
||
|
recycled. |
Operating Instructions |
15 |
|
|
Engine Management |
16 |
||
|
|
Cleaning the Air Filter |
16 |
|
|
be |
Adjusting the Carburetor |
17 |
|
|
can |
|||
|
Spark Plug |
18 |
||
|
paper |
|||
|
Engine Running Behavior |
19 |
||
|
oils, |
|||
|
Rewind Starter |
20 |
||
paperfree-chlorineon vegetablecontaininks |
||||
Storing the Machine |
20 |
|||
|
|
|||
|
|
Inspections and Maintenance by |
|
|
|
|
Dealer |
20 |
|
|
|
Maintenance and Care |
21 |
|
Printed |
Printing |
Main Parts |
22 |
|
Specifications |
23 |
|||
|
|
|||
|
|
Special Accessories |
24 |
|
|
|
Maintenance and Repairs |
24 |
|
|
|
STIHL Incorporated Federal |
|
|
2011 |
|
Emission Control Warranty |
|
|
|
Statement |
25 |
||
STIHLANDREAS© AG & Co. KG, |
8621-461-0458-A. M9.A11.PM. 0030000001986GB |
STIHL Incorporated California |
|
|
{ |
|
|||
|
|
Exhaust and Evaporative |
|
|
|
|
Emissions Control Warranty |
|
|
|
|
Statement |
27 |
|
|
|
Trademarks |
29 |
|
English
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.
KM 55 R, KM 55 RC |
1 |
English
KombiSystem
+
....
+ |
KN |
|
002BA442 |
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
All the pictograms attached to or embossed on the machine are shown and explained in this manual.
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.
Caution!
Indicates a risk of property damage, including damage to the machine or its individual components.
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 differ from those described in this manual, please contact your STIHL dealer for assistance.
2 |
KM 55 R, KM 55 RC |
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
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
KM 55 R, KM 55 RC |
3 |
English
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.
For further instructions on proper clothing see the safety precautions in the instruction manual of the KombiTool you are using.
THE POWER TOOL
For illustrations and definitions of the power tool parts see the chapter on "Main Parts and Controls."
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.
4 |
KM 55 R, KM 55 RC |
Fuel
Your STIHL power tool uses an oilgasoline 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
KM 55 R, KM 55 RC
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 dur-
ing 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.
Different models may be equipped with different fuel caps.
Toolless cap with grip
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.
English
001BA220 KN
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
NIf 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
5
English
can result from handling, cleaning or an improper attempt at tightening.
001BA227 KN |
Left: |
Base of cap in closed posi- |
|
tion (with open space) |
Right: |
Base of cap correctly posi- |
|
tioned for installation |
001BA226 KN |
NTo 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.
NIf 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 quanti-
ties 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.
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.
6 |
KM 55 R, KM 55 RC |
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
002BA057 KN
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.
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.
KM 55 R, KM 55 RC |
7 |
English
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!
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.
Warning!
To reduce the risk of fire and burn injury, 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!
Never modify your muffler. The muffler could be damaged and cause an increase in heat radiation or sparks, thereby increasing the risk of fire and burn injury. You may also permanently damage the engine. Have your muffler serviced and repaired by your STIHL servicing dealer only.
Catalytic Converter
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, the following specific safety precautions must be observed.
Warning!
Since a muffler with a catalytic converter cools down less rapidly than conventional mufflers, 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.
Warning!
An improperly mounted or damaged cylinder housing or a damaged/deformed muffler shell may interfere with the cooling process of the catalytic converter. 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 catalytic converter is furnished with screens designed to reduce the risk of fire from the emission of hot particles. Due to the heat from the catalytic reaction, these screens will normally
8 |
KM 55 R, KM 55 RC |
stay clean 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.
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.
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.
English
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. If your muffler was equipped with a spark-arresting screen to reduce the risk of fire, never operate your power tool if the screen is missing or damaged. Remember that the risk of forest fires is greater in hot or dry weather.
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.
KM 55 R, KM 55 RC |
9 |
English
Approved KombiTools
FS-KM |
FS-KM |
|
FSB-KM |
FH-KM |
BG-KM |
BF-KM |
HT-KM |
|
|
|
|
|
KB-KM |
KW-KM |
FCB-KM |
FCS-KM |
|
|
|
470BA018 KN |
The following STIHL KombiTools may be mounted on the KombiEngine:
KombiTool |
Purpose |
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 |
FCB-KM |
Power edger |
FCS-KM |
Power edger |
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".
10 |
KM 55 R, KM 55 RC |
Mounting the Loop Handle
A barrier bar is supplied with the machine. Attach the barrier bar to the loop handle.
2 |
1 |
1 |
002BA098 KN |
NInsert square nuts (1) in the barrier bar (2) – the holes must line up
2
4
|
3 |
|
|
5 |
|
6 |
7 |
KN |
|
002BA099 |
|
|
|
NInsert the clamp (3) in the loop handle (4) and position them together on the shaft (5)
N Position clamp (6)
NPosition barrier bar (2) – note position!
N Line up the holes
NInsert bolts (7) in the holes – and screw them into the barrier bar as far as possible
English |
A |
8 |
4 |
9 |
002BA353 KN |
NFit 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
NTighten 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.
KM 55 R, KM 55 RC |
11 |
English
Fuel
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 quality two-stroke air cooled engine oil.
Use mid-grade unleaded gasoline with a minimum octane rating of 89 (R+M/2). If the octane rating of the mid-grade gasoline in your area is lower, use premium unleaded fuel.
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.
Engines equipped with M-Tronic can be run on gasoline with an ethanol content of up to 25% (E25).
Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that are designed for use only in air cooled two-cycle engines.
We recommend STIHL HP Ultra 2-Cycle Engine Oil since it is specially formulated for use in STIHL engines.
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 canister from your vehicle and place the canister on the ground before filling. Do not fill fuel canisters that are sitting in or on a vehicle.
The canister should be kept tightly closed in order to avoid any moisture getting into the mixture.
The machine‘s fuel tank and the canister in which fuel mix is stored 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-canisters only. When mixing, pour oil into the canister first, and then add gasoline. Close the canister and shake it vigorously by hand to ensure proper mixing of the oil with the fuel.
Gaso- |
Oil (STIHL 50:1 or equiva- |
line |
lent high-quality oils) |
US gal. |
US fl.oz |
1 |
2.6 |
2 1/2 |
6.4 |
5 |
12.8 |
Dispose of empty mixing-oil canisters only at authorized disposal locations.
12 |
KM 55 R, KM 55 RC |
Fueling
232BA046 KN
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.
In order to reduce the risk of burns or other personal injury from
escaping gas vapor and fumes, remove the fuel filler cap carefully so as to allow any pressure buildup in the tank to release slowly.
After fueling, tighten fuel cap as securely as possible by hand.
Starting / Stopping the
Engine
Controls
7 1 6
2
|
3 |
5 4 |
KN |
|
233BA048 |
1Stop switch
2Throttle trigger lockout
3Throttle lever
4Tongue of throttle trigger
5Catch
Positions of stop switch
6I – normal run position – the engine is running or can start
70 – engine off – the ignition is switched off
English
Starting
4
233BA049 KN
N Move the stop switch to I.
NPress down the throttle trigger lockout and hold it there.
NSqueeze the throttle trigger until the catch on the tongue (4) can be engaged on the housing.
NNow release the throttle trigger, tongue and trigger lockout in that order. This is the starting throttle position.
KM 55 R, KM 55 RC |
13 |
English
9
8
232BA011 KN
N Set the choke lever (8) to
g if the engine is cold
efor warm start – also use this position if the engine has been running but is still cold.
NPress the fuel pump bulb (9) at least five times – even if the bulb is already filled with fuel.
Starting
232BA012 KN
233BA014 KN
NPlace 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.
NMake sure you have a safe and secure footing.
NHold the unit with your left hand and press it down firmly – your thumb should be under the fan housing.
Do not stand or kneel on the drive tube.
232BA014 KN |
NHold the starter grip with your right hand.
Version without Easy2Start
NPull the starter grip slowly until you feel it engage and then give it a brisk strong pull.
Do not pull out the starter rope all the way – it might otherwise
break.
Version with Easy2Start
NPull the starter grip slowly until you feel it engage and then pull it out slowly and steadily.
Do not pull out the starter rope all the way – it might otherwise
break.
14 |
KM 55 R, KM 55 RC |
Both versions
NDo not let the starter grip snap back. Guide it slowly back into the housing so that the starter rope can rewind properly.
8
232TI015 KN
NCrank the engine until it fires – after no more than five pulls, move the choke lever (8) to e.
N Continue cranking.
As soon as the engine runs
NSqueeze the throttle trigger to disengage the tongue – the engine will settle down to idle speed.
Your machine is now ready for operation.
Make sure the carburetor is correctly adjusted. The working tool must not move when the engine is idling.
Stopping the engine
N Move the stop switch to 0.
If the engine does not start
If you did not move the choke lever to e quickly enough after the engine began to fire, the combustion chamber is flooded.
N Set the choke lever to e .
NSet the stop switch, lockout lever and throttle trigger to the starting throttle position.
NStart 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 stop switch to 0.
NRemove the spark plug – see "Spark Plug".
N Dry the spark plug.
NCrank the engine several times with the starter to clear the combustion chamber.
NRefit the spark plug – see "Spark Plug".
N Move the stop switch to I.
NSet the choke lever to e– even if the engine is cold.
N Now start the engine.
Fuel tank run until completely dry
NAfter refueling, press the fuel pump bulb at least five times – even if the bulb is filled with fuel.
N Start the engine.
English
Operating Instructions
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-of- service perionds – see "Storing the Machine".
KM 55 R, KM 55 RC |
15 |
English
Cleaning the Air Filter
If there is a noticeable loss of engine power
2 
1
232BA017 KN
N Set the choke lever to g.
NPress in the tab (1) and swing the filter cover (2) down.
NClean away loose dirt from around the filter.
4 |
3 |
232BA018 KN |
NRemove the felt element (3) from the filter housing (4) and replace it – knock out or blow out as a temporary measure – do not wash.
N Replace damaged parts.
NFit the felt element (3) in the filter housing (4).
NClose the filter cover so that it snaps into position.
Engine Management
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.
16 |
KM 55 R, KM 55 RC |
Adjusting the Carburetor
The carburetor comes from the factory with a standard setting.
This setting provides an optimum fuel-air mixture under most operating conditions.
With this carburetor it is only possible to adjust the high speed screw within fine limits.
Standard Setting
N Stopping the Engine
NMount the KombiTool complete with working tool or cutting attachment.
NCheck the air filter and replace it if necessary.
NHave the spark arresting screen in the muffler checked (not all markets) – see “Inspection and Maintenance by Dealer"
H |
L |
|
LA |
|
233BA050 KN |
NTurn high speed screw (H) counterclockwise as far as stop (no more than 3/4 turn).
NTurn the low speed screw (L) carefully clockwise as far as stop, then turn it back 1.5 turns.
N Start and warm up the engine.
NAdjust idle speed with the idle speed screw (LA) so that the cutting attachment does not move.
Fine Tuning for Operation in Mountains or at Sea Level
A slight correction of the setting of the high speed screw (H) may be necessary if engine power is not satisfactory when operating at high altitude or at sea level.
N Carry out the standard setting.
NWarm up the engine for about 3 minutes at full throttle.
English
Rule of thumb:
Turn the high speed screw (H) about one quarter of a turn for every 1000 m (3300 ft) change in altitude.
At high altitude
NTurn high speed screw (H) clockwise (leaner) – no further than stop.
At sea level
NTurn high speed screw (H) counterclockwise (richer) – no further than stop.
It is possible that maximum engine speed may be reached with the standard setting in each case.
Aadjusting Idle Speed
It is usually necessary to change the setting of the idle speed screw (LA) after every correction to the low speed screw (L).
NWarm up the engine for about 3 minutes.
Engine stops while idling
NTurn the idle speed screw (LA) slowly clockwise until the engine runs smoothly – the working tool or cutting attachment must not move.
Cutting attachment runs when engine is idling
NTurn the idle speed screw (LA) counterclockwise until the working tool or cutting attachment stops
KM 55 R, KM 55 RC |
17 |
English
moving and then rotate the screw another 1/2 to 1 turn in the same direction.
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.
Erratic idling behavior, engine stops even though setting of LA-screw has been corrected, poor acceleration
Idle setting is too lean:
NIdle setting is too lean: Rotate the low speed screw (L) about 1/4 turn counterclockwise until the engine runs and accelerates smoothly.
Erratic idling behavior
Idle setting is too rich
NRotate the low speed screw (L) about 1/4 turn clockwise until the engine runs and accelerates smoothly.
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 stop switch to 0.
1 |
232BA081 KN |
N Pull off the spark plug boot (1). N Unscrew the spark plug.
000BA002 KN
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.
If engine is down on power, difficult to start or runs poorly at idling speed, first check the spark plug.
NRemove spark plug – see "Starting / Stopping the Engine".
N Clean dirty spark plug.
NCheck electrode gap (A) and readjust if necessary – see "Specifications".
NUse only resistor type spark plugs of the approved range.
Rectify problems which have caused fouling of spark plug:
18 |
KM 55 R, KM 55 RC |
N Too much oil in fuel mix.
N Dirty air filter.
NUnfavorable running conditions, e.g. operating at part load.
Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded.
Installing the spark plug
NScrew home the spark plug, fit the boot and press it down firmly.
1
000BA036 TR
Warning!
To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press spark plug boot (2) snugly onto spark plug terminal (1) 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.
English
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.
KM 55 R, KM 55 RC |
19 |
Loading...