Stihl Km 55 R Manual
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KM 55 R, KM 55 RCEnglish 19 NToo much oil in fuel mix. NDirty 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.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! 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 con- nector in the boot may create arcing that could ignite combustible fumes and cause a fire. 000BA036 TR 1 Engine Running Behavior
KM 55 R, KM 55 RC English 20 To help prolong the wear life of the starter rope, observe the following points: NPull the starter rope only in the direction specified. NDo not pull the rope over the edge of the guide bushing. NDo not pull out the rope more than specified. NDo not allow the starter grip to snap back, guide it back into the housing slowly – see chapter on Starting / Stopping the Engine. Have a damaged starter rope replaced by your dealer before it breaks completely. STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer.For periods of 3 months or longer NDrain and clean the fuel tank in a well ventilated area. NDispose of fuel properly in accordance with local environmental requirements. NRun the engine until the carburetor is dry – this helps prevent the carburetor diaphragms sticking together. NThoroughly clean the machine – pay special attention to the cylinder fins and air filter. NRemove, clean and inspect the working tool. NStore the machine in a dry, high or locked location, out of the reach of children and other unauthorized persons. Maintenance Work STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer. Fuel Pickup Body in Tank NHave the pickup body in the fuel tank replaced every year. Spark Arrestor in Muffler NIf the engine is low on power, have your dealer check the spark arrestor (country-specific option) in the muffler. Rewind StarterStoring the MachineInspections and Maintenance by Dealer
KM 55 R, KM 55 RCEnglish 21 Maintenance and Care The following intervals apply to normal operating conditions only. If your daily work- ing 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 if required Complete machineVisual inspection (condition, leaks)XX CleanX Control handle Check operationXX Air filterCleanXX ReplaceX Pickup body in fuel tankCheckX Have replaced by dealer 1)XXX Fuel tank CleanXX CarburetorCheck idle adjustment – the working tool must not moveXX Readjust idleX Spark plugReadjust electrode gapX Replace after every 100 operating hours Cooling inletsVisual InspectionX CleanX Spark arrestor 2) in mufflerHave checked by dealer 1)XX Have cleaned or replaced by servicing dealer 1)XX All accessible screws and nuts (not adjust- ing screws)RetightenX Safety labels ReplaceX 1)STIHL recommends a STIHL servicing dealer.2)not in all versions, market-specific
KM 55 R, KM 55 RC English 221Fuel Pump 2Carburetor Adjusting Screws 3Spark Plug Boot 4Starter Grip 5Muffler 6Stop Switch 7Throttle Trigger 8Throttle Trigger Lockout 9Choke Lever 10Air Filter Cover 11Fuel Tank 12Fuel Filler Cap 13Machine Support 14Loop Handle 15Barrier Bar 16Drive Tube 17Coupling Sleeve 18Wing Screw #Serial Number Main Parts 129 8 7 461BA002 KN 14 6 1 5 4 2 3 1517 18 16 810 11 13#
KM 55 R, KM 55 RCEnglish 23 Definitions 1. Fuel Pump Provides additional fuel feed for a cold start. 2. Carburetor Adjusting Screws For tuning the carburetor. 3. Spark Plug Boot Connects the spark plug with the ignition lead. 4. Starter Grip The grip of the pull starter, for starting the engine. 5. Muffler with Spark Arresting Screen Muffler reduces exhaust noises and diverts exhaust gases away from operator. Spark arresting screen is designed to reduce the risk of fire. 6. Stop Switch Switches the engines ignition off and stops the engine. 7. Throttle Trigger Controls the speed of the engine. 8. Throttle Trigger Lockout Must be depressed before the throttle trigger can be activated. 9. Choke Lever Eases engine starting by enriching mixture. 10. Air Filter Cover Covers and protects the air filter element. 11. Fuel Tank For fuel and oil mixture.12. Fuel Filler Cap For closing the fuel tank. 13. Machine Support For resting machine on the ground. 14. Loop Handle with Barrier Bar For easy control of machine during cutting work. 15. Barrier Bar Helps keep users feet and legs clear of the cutting attachment. 16. Drive Tube Encloses and protects the drive shaft between the engine and coupling sleeve. 17. Coupling Sleeve Connects drive tube to lower part of drive tube (stub shaft). 18. Wing Screw Locks handlebar in selected position. EPA / CEPA The Emission Compliance Period referred to on the Emissions Compliance Label indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements. Category CARB The Emission Compliance Period used on the CARB-Air Index Label indicates the terms: Engine Single cylinder two-stroke engine Specifications A = 300 hours B = 125 hours C = 50 hours Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Displacement: 1.66 cu. in. (27.2 cm 3) Bore: 1.34in. (34mm) Stroke: 1.18 in. (30 mm) Engine power to ISO 8893:1.0HP (0.75kW) at 7,000 rpm Idle speed: 2,800 rpm Cut-off speed (rated): 9,500 rpm
KM 55 R, KM 55 RC English
24
Ignition System
Electronic magneto ignition
Fuel System
All position diaphragm carburetor with
integral fuel pump
WeightContact your STIHL dealer for
information regarding special
accessories that may be available for
your product.Users of this unit should carry out only
the maintenance operations described
in this manual. Other repair work may be
performed only by authorized STIHL
service shops.
Warranty claims following repairs can be
accepted only if the repair has been
performed by an authorized STIHL
servicing dealer using original STIHL
replacement parts.
Original STIHL parts can be identified by
the STIHL part number, the {
logo and, in some cases, by the STIHL
parts symbol K. The symbol may
appear alone on small parts. Spark plug (resistor
type): NGK BPMR 7A
Electrode gap: 0.02 in. (0.5 mm)
Fuel tank capacity: 11.2 fl.oz
(0.33 L)
dry, without KombiTool
KM 55 R: 8.6 lbs (3.9 kg)
KM 55 RC: 9.0 lbs (4.1 kg)
Special AccessoriesMaintenance and Repairs
KM 55 R, KM 55 RCEnglish 25 Not for California Your Warranty Rights and Obligations The U.S. Environmental Protection Agency (EPA) and STIHL Incorporated are pleased to explain the Emission Control System Warranty on your equipment type engine. In the U.S. new 1997 and later model year small off-road equipment engines must be designed, built and equipped, at the time of sale, to meet the U.S. EPA regulations for small non road engines. The equipment engine must be free from defects in materials and workmanship which cause it to fail to conform with U.S. EPA standards for the first two years of engine use from the date of sale to the ultimate purchaser. STIHL Incorporated must warrant the emission control system on your small off-road engine for the period of time listed below provided there has been no abuse, neglect or improper maintenance of your small off-road equipment engine. Your emission control system includes parts such as the carburetor and the ignition system. Also included may be hoses, and connectors and other emission-related assemblies. Where a warrantable condition exists, STIHL Incorporated will repair your small off-road equipment engine at no cost to you, including diagnosis (if the diagnostic work is performed at an authorized dealer), parts, and labor. Manufacturers Warranty Coverage In the U.S., 1997 and later model year small off-road equipment engines are warranted for two years. If any emission- related part on your engine is defective, the part will be repaired or replaced by STIHL Incorporated free of charge. Owners Warranty Responsibilities As the small off-road equipment engine owner, you are responsible for the performance of the required maintenance listed in your instruction manual. STIHL Incorporated recommends that you retain all receipts covering maintenance on your small off- road equipment engine, but STIHL Incorporated cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance. Any replacement part or service that is equivalent in performance and durability may be used in non-warranty maintenance or repairs, and shall not reduce the warranty obligations of the engine manufacturer. As the small off-road equipment engine owner, you should be aware, however, that STIHL Incorporated may deny you warranty coverage if your small off-road equipment engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications. You are responsible for presenting your small off-road equipment engine to a STIHL service center as soon as a problem exists. The warranty repairs will be completed in a reasonable amount of time, not to exceed 30 days. If you have any questions regarding your warranty rights and responsibilities, please contact a STIHL customer service representative at 1-800-467- 8445 or you can write to STIHL Inc., 536 Viking Drive, P.O. Box 2015, Virginia Beach, VA 23450-2015 www.stihlusa.com Coverage by STIHL Incorporated STIHL Incorporated warrants to the ultimate purchaser and each subsequent purchaser that your small off-road equipment engine will be designed, built and equipped, at the time of sale, to meet all applicable regulations. STIHL Incorporated also warrants to the initial purchaser and each subsequent purchaser that your engine is free from defects in materials and workmanship which cause the engine to fail to conform with applicable regulations for a period of two years. Warranty Period The warranty period will begin on the date the utility equipment engine is purchased by the initial purchaser and you have signed and sent back the warranty card to STIHL. If any emission-related part on your engine is defective, the part will be replaced by STIHL Incorporated at no cost to the owner. Any warranted part which is not scheduled for replacement as required maintenance, or which is scheduled only for regular inspection to STIHL Incorporated Federal Emission Control Warranty Statement
KM 55 R, KM 55 RC English 26 the effect of repair or replace as necessary will be warranted for the warranty period. Any warranted part which is scheduled for replacement as required maintenance will be warranted for the period of time up to the first scheduled replacement point for that part. Diagnosis You, as the owner, shall not be charged for diagnostic labor which leads to the determination that a warranted part is defective. However, if you claim warranty for a component and the machine is tested as non-defective, STIHL Incorporated will charge you for the cost of the emission test. Mechanical diagnostic work will be performed at an authorized STIHL servicing dealer. Emission test may be performed either at STIHL Incorporated or at any independent test laboratory. Warranty Work STIHL Incorporated shall remedy warranty defects at any authorized STIHL servicing dealer or warranty station. Any such work shall be free of charge to the owner if it is determined that a warranted part is defective. Any manufacturer-approved or equivalent replacement part may be used for any warranty maintenance or repairs on emission-related parts and must be provided without charge to the owner. STIHL Incorporated is liable for damages to other engine components caused by the failure of a warranted part still under warranty. The following list specifically defines the emission-related warranted parts:–Air Filter –Carburetor –Fuel Pump –Choke (Cold Start Enrichment System) –Control Linkages –Intake Manifold –Magneto or Electronic Ignition System (Ignition Module) –Spark Plug –Catalytic Converter (if applicable) –Fuel Tank –Fuel Cap –Fuel Line –Fuel Line Fittings –Clamps –Fasteners Where to make a Claim for Warranty Service Bring the product to any authorized STIHL servicing dealer and present the signed warranty card. Maintenance Requirements The maintenance instructions in this manual are based on the application of the recommended 2-stroke fuel-oil mixture (see also instruction Fuel). Deviations from this recommendation regarding quality and mixing ratio of fuel and oil may require shorter maintenance intervals.Limitations This Emission Control Systems Warranty shall not cover any of the following: Nrepair or replacement required because of misuse, neglect or lack of required maintenance, Nrepairs improperly performed or replacements not conforming to STIHL Incorporated specifications that adversely affect performance and/or durability, and alterations or modifications not recommended or approved in writing by STIHL Incorporated, and Nreplacement of parts and other services and adjustments necessary for required maintenance at and after the first scheduled replacement point.
KM 55 R, KM 55 RCEnglish 27 For California only Your Warranty Rights and Obligations The California Air Resources Board (CARB) and STIHL Incorporated are pleased to explain the Emission Control System Warranty on your 2007 and later small off-road equipment engine. In California, new equipment that uses small off-road engines must be designed, built, and equipped to meet the States stringent anti-smog standards. STIHL Incorporated must warrant the emissions control system on your small off-road engine for the period listed below provided there has been no abuse, neglect or improper maintenance of your small off-road engine. Your emissions control system may include parts such as: Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners.Where a warrantable condition exists, STIHL Incorporated will repair your small off-road equipment engine at no cost to you including diagnosis, parts and labor. Manufacturer’s Warranty Responsibilities This emissions control system is warranted for two years in California. If any emissions-related part on your equipment is defective, the part will be repaired or replaced by STIHL Incorporated free of charge. Owner’s Warranty Responsibilities As the small off-road equipment engine owner, you are responsible for performance of the required maintenance listed in your instruction manual. STIHL Incorporated recommends that you retain all receipts covering maintenance on your small off- road equipment engine, but STIHL Incorporated cannot deny warranty solely for the lack of receipts or your failure to ensure the performance of all scheduled maintenance. As the small off-road equipment engine owner, you should however be aware that STIHL Incorporated may deny you warranty coverage if your small off-road equipment engine or a part has failed due to abuse, neglect, or improper maintenance or unapproved modifications. You are responsible for presenting your small off-road equipment engine to a STIHL servicing dealer as soon as the problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If you have any questions regarding your warranty rights and responsibilities, please contact a STIHL customer service representative at 1-800-467- 8445 or you can write to STIHL Inc., 536 Viking Drive, P.O. Box 2015, Virginia Beach, VA 23450-2015. Coverage by STIHL Incorporated STIHL Incorporated warrants to the ultimate purchaser and each subsequent purchaser that your small off-road equipment engine is designed, built and equipped, at the time of sale, to meet all applicable emission regulations. STIHL Incorporated also warrants to the initial purchaser and each subsequent purchaser that your engine is free from defects in materials and workmanship which cause the engine to fail to conform to applicable emission regulations for a period of two years. Defects Warranty Period The warranty periods will begin on the date the utility equipment engine is purchased by the initial purchaser. If any emission-related part on your engine is defective, the part will be replaced by STIHL Incorporated at no cost to the owner. Add-on or modified parts that are not exempted by CARB may not be used. The use of any non exempted add-on or modified parts will be grounds for disallowing a warranty claim. STIHL Incorporated will not be liable to warrant failures of warranted parts caused by the use of a non exempted add-on or modified part. STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement
KM 55 R, KM 55 RC English 28 The warranty on emissions-related parts will be interpreted as follows: 1.Any warranted part that is not scheduled for replacement as required maintenance in the written instructions required in the Emission Warranty Parts List (see below) must be warranted for the warranty period defined in Subsection COVERAGE BY STIHL INCORPORATED, see above. If any such part fails during the period of warranty coverage, it must be repaired or replaced by the manufacturer according to Subsection (4) below. Any such part repaired or replaced under the warranty must be warranted for the remaining warranty period. 2.Any warranted part that is scheduled only for regular inspection in the written instructions required by the Emission Warranty Parts List (see below) must be warranted for the warranty period defined in Subsection COVERAGE BY STIHL INCORPORATED, see above. A statement in such written instructions to the effect of repair or replace as necessary will not reduce the period of warranty coverage. Any such part repaired or replaced under warranty must be warranted for the remaining warranty period. 3.Any warranted part that is scheduled for replacement as required maintenance in the written instructions required by the Emission Warranty Parts List (see below) must be warranted for the period of time prior to the first scheduled replacement point for that part. If the part fails prior to the first scheduled replacement, the part must be repaired or replaced by the engine manufacturer according to Subsection (4) below. Any such part repaired or replaced under warranty must be warranted for the remainder of the period prior to the first scheduled replacement point for the part. 4.Repair or replacement of any warranted part under the warranty must be performed at a warranty station at no charge to the owner. 5.Notwithstanding the provisions of Subsection (4) above, warranty services or repairs will be provided at all manufacturer distribution centers that are authorized to service the subject engines. 6.The owner must not be charged for diagnostic labor that leads to the determination that a warranted part is in fact defective, provided that such diagnostic work is performed at a warranty station. Warranty Work STIHL Incorporated shall remedy warranty defects at any authorized STIHL servicing dealer or warranty station. Any such work shall be free of charge to the owner if it is determined that a warranted part is defective. Any manufacturer approved or equivalent replacement part may be used for any warranty maintenance or repairs on emission-related parts and must be provided without charge to the owner. STIHL Incorporated is liable for damages to other engine components caused by the failure of a warranted part still under warranty. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for Warranty Service Bring the STIHL product to any authorized STIHL servicing dealer and present the signed STIHL product registration card, or the print-out of the electronic product registration. Limitations The repair or replacement of any warranted part otherwise eligible for warranty coverage may be excluded from such warranty coverage if STIHL Incorporated demonstrates that the STIHL product has been abused, neglected, or improperly maintained, and that such abuse, neglect, or improper maintenance was the direct cause of the need for repair or replacement of the part. That notwithstanding, any adjustment of a component that has a factory installed, and properly operating, adjustment limiting device is still eligible for warranty coverage.