Stihl 064 Chainsaw Instruction Manual

Warning! I | о Read and follow all safety precautions in Owner's This s aw is caf 19: f seve re se Manual — improper use can cause serious or fatal ous or fa al inju ny at U Sers vith € traordinary | utting injury. STIHL recommends the use of STIHL reduced 4s anc experience anc ain sali ing with kickback. kickback bar and low kickback chain. le. O Andreas Stihl 1985. Important Safety Precautions for Chain Saw Users A. Kickback Safety Precautions Warning! Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut. Tip contact in some cases may cause a lightning fast reverse reaction, kicking the guide bar up and back towards the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions may cause you to lose control of the saw which could result in serious personal injury. Section 5.12 of ANSI B 175.1-1991 sets certain performance and design criteria related to chainsaw kickback. STIHL has developed a color code system using green and yellow to help you select a powerhead, bar and chain combination that complies with the kickback requirements of the ANSI Standard. See the sections entitled "Safety Precautions" and "Specifications" of this manual. Do not rely exclusively upon the safety devices built into your saw. As a chainsaw user, you should take several steps to keep your cutting jobs free from accident or injury. 1. With a basic understanding of kickback, you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents. 2. Keep a good firm grip on the saw with both hands, the right hand on the rear handle, and the left hand on the front handle, when the engine is running. Use a firm grip with thumbs and fingers encircling the chainsaw handles. A firm grip will help you reduce kickback and maintain control of the saw. Don't let go. 3. Make sure that area in which you are cutting is free from obstructions. Do not let the nose of the guide bar contact a log, branch, or any other obstruction which could be hit while you are operating the saw. 4. Cut at high engine speeds. 5, Do not overreach or cut above shoulder hight. 6. Follow manufacturer's sharpening and maintenance instructions for the saw chain. 7. Only use replacement bars and chains specified by the manufacturer or the equivalent. B. Other Safety Precautions - Do not operate a chainsaw with one hand! Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one- handed operation. A chainsaw is intended for two-handed use. 1. Do not operate a chainsaw when you are fatigued. 2. Use safety footwear; snug-fitting clothing; protective gloves; and eye, hearing, and head protection devices. 3. Use caution when handling fuel. Move the chainsaw at least 10 feet (3 m) from the fueling point before starting the engine. continued on the back inside cover =p Contents Main Parts of Saw Definitions Safety Precautions - The Operator - The Saw - The Use of the Saw - Maintenance, Repair and Storing Mounting the Bar and Chain Tensioning the Saw Chain Fuel Mix Fueling Filling Chain Oil Tank Chain Brake Information Before You Start Starting the Saw Checking Chain Lubrication Oil Quantity Control During Break-in Period During Operation Cleaning Air Filter After Finishing Work Printed on chlorine-free paper Printing inks contain vegetable oils, paper is recyclable © 1997 Andreas Stihl, Waiblingen 0458 134 3021. M5. D7. T. Printed in Germany DOOR SON 23 26 27 28 29 30 31 32 35 36 36 36 37 38 Winter Operation (Carburetor Preheating) Taking Care of Guide Bar Adjusting Carburetor Checking Spark Plug Replacing Starter Rope Checking and Replacing Chain Sprocket Maintaining and Sharpening Saw Chain Storing the machine Maintenance Chart Specifications Ordering Spare Parts 39 40 42 44 45 48 50 56 57 58 59 This Manual contains operating and safety instructions for all STIHL 064, 066 series power saws. Pay special attention to the safety precautions outlined on the inside cover and on pages 4 to 23. Allow only persons who understand this Manual to operate your chain saw. To receive maximum performance and satisfaction from your STIHL chain saw, it is important that you read and understand the maintenance and safety precautions before using your saw. Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in this Manual. Warning! Because a chain saw is a high-speed wood-cutting tool, some special safety precautions must be observed as with any other power saw to reduce the risk of personal injury. Careless or improper use may cause serious or even fatal injury. STIHL's philosophy is to continuallyi mprove all of its products. As a result, engineering changes and improvements are made from time-to-time. If the operating characteristics or the appear- ance of your saw differs from those described in this Manual, please contact your STIHL dealer for informations and assistance. STIHL Main Parts of Saw = Carburetor box cover twist lock = © 145BA026 K 2= Spark plug boot 3= Handle Heating Switch 4 = Chain sprocket cover 5 = Chain sprocket = Chain brake 7 = Chain catcher = Chain tensioner = Spiked bumper 10 = Guide bar 11 = Olilomatic saw chain 12 = Qilfiller cap 13 = Muffler 14 = Front hand guard 15 = Front handle (handlebar) 16 = Decompression valve 17 = Starter grip 18 = Fuel filler cap 19 = Master Control lever 20 = Throttle trigger 21 = Throttle trigger interlock 22 = Rear handle 23 = Rear hand guard Definitions 10. . Carburetor Box Cover Twist Lock Lock for carburetor box cover. Spark Plug Boot Connects the spark plug with the ignition wire. Handle Heating Switch For switching the electric handle heating on and off Chain Sprocket Cover Covers the clutch and the sprocket. Chain Sprocket The toothed wheel that drives the saw chain. Chain Brake A device to stop the rotation of the chain if activated in a kickback situation by the operator’s hand or by inertia. Chain Catcher Helps to reduce the risk of operator contact by a chain when it breaks or comes off the bar. . Chain Tensioner Permits precise adjustment of chain tension. Spiked Bumper Toothed stop for holding saw steady against wood. Guide Bar Supports and guides the saw chain. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Oilomatic Saw Chain A loop consisting of cutters, tie straps and drive links. Oil Filler Cap For closing the oil tank. Muffler Reduces engine exhaust noise and directs the exhaust gases. Front Hand Guard Provides protection against projecting branches and helps prevent left hand from touching the chain if it slips off the handle bar. Front Handle Handle bar for the left hand at front of saw. Decompression Valve Makes starting easier Starter Grip The grip of the starter, for starting the engine. Fuel Filler Cap For closing the fuel tank. Master Control Lever Lever for choke control, starting throttle, run and stop switch position. Throttle Trigger Controls the speed of the engine. 21. 22, 23. Throttle Trigger Interlock Must be depressed before the throttle trigger can be activated. Rear Handle The support handle for the right hand, located at or toward the rear of the saw. Rear Hand Guard Gives added protection to operator’s right hand. Guide Bar Nose The exposed end of the guide bar. (not illustrated, see chapter “Tensioning the Saw Chain". Clutch Couples engine to chain sprocket when engine is accelerated beyond idle speed. (not illustrated). Anti-Vibration System The anti-vibration system includes a number of buffers designed to reduce the transmission of vibrations created by the engine and cutting attachment to the operator's hands. (not illustrated). Safety Precautions The use of any chainsaw may be hazardous. The saw chain has many sharp cutters. If the cutters contact your flesh, they will cut you, even if the chain is not moving. At full throttle, the chain speed can reach 45 mph (20 m/s). It is important that you read, fully understand and observe the following safety precautions and warnings. Read the owner's manual and the safety instructions periodically. Pay special attention to the section on reactive forces. Warning! Reactive forces, including kickback, can be dangerous. Careless or improper use of any chainsaw may cause serious or fatal injury. All safety precautions that are generally observed when working with an axe or a hand saw also apply to the operation of chainsaws. However, because a chainsaw is a high-speed, fast-cutting power tool, special safety precautions must be observed to reduce the risk of personal injury. Have your STIHL dealer show you how to operate your chainsaw. Observe all applicable local safety regulations, standards and ordinances. Warning! Minors should never be allowed to use a chainsaw. Bystanders, especially 4 children, and animals should not be allowed in the area where a chainsaw is in use. Never let the saw run unattended. Store it in a locked place away from children and empty the fuel tank before storing for longer than a few days. Do not lend or rent your chainsaw without the owner's manual. Be sure that anyone using your saw reads and under- stands the information contained in this manual. These safety precautions and warnings apply to the use of all STIHL chainsaws. Different models may have different parts and controls. See the appropriate section of your owner’s manual for a description of the controls and function of the parts of your model saw. Safe use of a chainsaw involves 1. the operator 2. the saw 3. the use of the saw. THE OPERATOR Physical Condition You must be in good physical condition and mental health and not under the influence of any substance (drugs, alcohol) which might impair vision, dexterity or judgment. Do not operate a chainsaw when you are fatigued. Be alert — If you get tired while operating your chainsaw, take a break. Tiredness may result in loss of control. Working with any chainsaw can be strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating a chainsaw. Warning! Prolonged use of chainsaws (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 numb- ness and buming sensations and may cause nerve and circulation damage and tissue necrosis. Many STIHL models are available with an anti-vibration (AV) system designed to reduce the transmission of vibrations created by the engine and cutting attachment to the operator's hands. An anti-vibration system is recommended for those using chainsaws on a regular or sustained basis. Heated handles help to reduce the risk of whitefinger disease and are recommended for cold weather use. Most STIHL powerheads are available with heated handles. Anti-Vibration systems and heated handles do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome. Therefore, continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately. Proper Clothing Clothing must be sturdy and snug-fitting, but allow complete freedom of movement. Avoid loosefitting jackets, scarfs, neckties, jewelry, flared or cuffed pants, unconfined long hair or anything that could become entangled with the saw or brush. Wear overalls or jeans with a reinforced cut retardant insert or cut retardant chaps. Protect your hands with gloves when handling saw and saw chain. Heavyduty, nonslip gloves improve your grip and protect your hands. Good footing is most important in chainsaw work . Wear sturdy boots with nonslip soles. Steel-toed safety boots are recommended. To reduce the risk of injury to your eyes never operate a chainsaw unless wearing goggles or properly fitted safety glasses with adequate top and side protection complying with your national standard. Ns Wear an approved safety hard hat to protect your head. Chainsaw noise may damage your hearing. Always wear sound barriers (ear plugs or ear mufflers) to protect your hearing. Continual and regular users should have their hearing checked regularly. THE SAW Parts of the chainsaw; for illustrations and definitions of the parts see the chapter on "Main Parts of Saw". Warning! Never modify a chainsaw in any way. Only attachments and parts supplied by STIHL or expressly approved by STIHL for use with the specific STIHL saw models are authorized. Although certain unauthorized attachments are useable with the STIHL powerhead, their use may, in fact, be extremely dangerous. THE USE OF THE SAW Transporting the chainsaw Warning! Always stop the engine before putting a chainsaw down or carrying it. Carrying a chainsaw with the engine running is extremely dangerous. Accidental acceleration of the engine can cause the chain to rotate. During operation, the powerhead muffler and the material around it reach extremely high temperatures. Avoid touching the hot muffler, you could receive serious burns. By hand: When carrying your saw by hand, the engine must be stopped and the saw must be in the proper position. E EL EE EEE EE EEE TER a | [> № | FF NTT ie (= Sia Grip the front handle and place the muffler away from the body. The chain guard (scabbard) should be over the chain and the guide bar, which should point backwards. When carrying your saw, the bar should be behind you. By vehicle: When transporting in a vehicle, keep chain and bar covered with the chain guard. Properly secure your saw to prevent turnover, fuel spillage and damage to the saw. Preparation for the use of the saw Take off the chain guard and inspect for safety in operation. For assembly, follow the procedure described in the chapter "Mounting the Bar and Chain" of your Owner's Manual. STIHL Oilomatic chain, guide bar and sprocket must match each other in gauge and pitch. Before replacing any bar and chain, see the sections on "Specifications", kickback and the ANSI B 175.1-1991 chainsaw kickback standard in this manual. Warning! Proper tension of the chain is extremely important. In order to avoid improper setting, the tensioning procedure must be followed as described in your manual. Always make sure the hexagonal nut(s) for the sprocket cover is (are) tightened securely after tensioning the chain. Never start the saw with the sprocket cover loose. Check chain tension once more after having tightened the nut(s) and thereafter at regular intervals (whenever the saw is shut off). If the chain becomes loose while cutting, shut off the engine and then tighten. Never try to tighten the chain while the engine is running ! Fueling Your STIHL chainsaw uses an oil-gasoline mixture for fuel (see chapter " Fuel " of your Owner's Manual). Warning! Gasoline is an extremely flammable fuel. If spilled or 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. Fueling Instructions Fuel your chainsaw in well-ventilated areas, outdoors only. Always shut off the engine and allow it to cool before refueling. Gasoline vapor pressure may build up inside the gas- tank of a two cycle engine depending on the fuel used, the weather conditions, and the venting system of the tank. In order to reduce the risk of burns or other personal injury from escaping gas vapor and fumes, remove the gas cap on the STIHL product carefully so as to allow any pressure build-up in the tank to release slowly. Never remove fuel filler cap while engine is running. Select bare ground for fueling and move at least 10 feet (3 m) from fueling spot before starting the engine. Wipe off any spilled fuel before starting your saw, and check for leakage. Check for fuel leakage while refueling and during operation. If fuel or oil leakage is found, do not start or run the engine until leak is fixed and spilled fuel has been wiped away. Take care not to get fuel on your clothing. If this happens, change your clothing immediately. Warning! Unit vibrations can cause an improperly tightened fuel cap to loosen or come off and spill quantities of fuel. In order to reduce risk of fuel spillage and fire, tighten fuel cap by hand with as much force as possible. The screw driver end of the STIHL combination wrench or other similar A tool can be used as an aid in tightening slotted fuel caps. Starting The chain brake must be blocked when starting the saw Warning! Your chainsaw is a one-person saw. Do not allow other persons to be.near the running chainsaw. Start and operate your saw without assistance. For specific starting instructions, see the appropriate section of the Owner’s Manual. Proper starting methods reduce the risk of injury. Do not drop start. This method is very dangerous because you may lose control of the saw. There are two recommended methods for starting your chainsaw. В LI 001BA028 LA With the first method, the chainsaw is started on the ground. Make sure the chain brake is engaged (see "Chain Brake" chapter in your Owner's Manual) and place the chainsaw on firm ground or other solid surface in an open area. Maintain good balance and secure footing. Grip the front handlebar of the saw firmly with your left hand and press down. For saws with a rear handle level with the ground, put the toe of your right foot into the rear handle and press down. With your right hand pull out the starter grip slowly until you feel a definite resistance and then give it a brisk, strong pull. NN ( f | 143BA019 The second recommended method for starting your chainsaw allows you to start the saw without placing it on the ground. Make sure the chain brake is engaged, grip the front handle of the chainsaw firmly with your left hand. Keep the arm on the front handle in a locked (straight) position. Hold the rear handle of the saw tightly between your legs just above the knees. Maintain good balance and secure footing. Pull the starting grip slowly with your right hand until you feel a definite resistance and then give it a brisk, strong pull. FIR THI EE TR Warning! Be sure that the guide bar and chain are clear of you and all other obstructions and objects, including the ground. When the engine is started, the engine speed with the starting throttle lock engaged Will be fast enough for the clutch to engage the sprocket and, if the chain- brake is not activated, turn the chain. If the upper quadrant of the tip of the bar touches any object, it may cause kickback to occur (see section on reactive forces). To reduce this risk, always engage the chain brake before starting. Never attempt to start the chainsaw when the guide bar is in a cut or kerf, Warning! When you pull the starter grip, do not wrap the starting rope around your hands. Do not allow the grip to snap back, but guide the starter rope slowly back to permit the rope to rewind properly. Failure to follow this procedure may result in injury to hand or fingers and may damage the starter mechanism. Important adjustments Warning! To reduce the risk of personal injury from loss of control or contact with the running chain, do not use a saw with incorrect idle adjustment. At correct idle speed, the chain should not rotate. For directions to adjust idle speed, see the appropriate section of your Owner's Manual. If you cannot set the correct idle speed, have your STIHL dealer check your saw and make proper adjustments Or repairs. After adjusting a chain, start the saw, let the engine run for a while, then switch engine off and recheck chain tension. Proper chain tension is very important at all times. Working Conditions Operate the chainsaw under good visibility and daylight conditions only, even if your chainsaw is equipped with a cataly- tic converter. Warning! Your chainsaw produces poisonous exhaust fumes as soon as the combustible engine is running. These gases (e.g. carbon monoxide) may be colorless and odor- less. To reduce the risk of serious or fatal injury from breathing toxic fumes, never run the chainsaw indoors or in poorly ventilated locations. Ensure proper venti- lation when working in trenches or other confined areas. 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 muffier and other parts while they are hot. Operate the saw under good visibility and daylight conditions only. Dont work alone. Keep within calling distance of others in case help is needed. Your chainsaw is equipped with a chain catcher. It is designed to reduce the risk of personal injury in the event of a thrown or broken chain. From time to time the catcher may be damaged or removed. To reduce the risk of personal injury, do not operate a chainsaw with a damaged or missing catcher. Inspect buffers periodically. Replace damaged, broken or excessively worn buffers immediately, since they may result in loss of control of the saw. A "sponginess" in the feel of the saw, increased vibration or increased "bottoming” during normal operation may indicate damage, breakage or excessive wear. Buffers should always be replaced in sets. If you have any questions as to whether the buffers should be replaced, consult your STIHL servicing dealer. Warning! Take extreme care in wet and freezing weather (rain, snow, ice). Put off the work when the weather is windy, stormy or rainfall is heavy. Clear the area where you are working. Warning! Avoid stumbling on obstacles such as stumps, roots or rocks and watch out for holes or ditches. Be extremely cautious when working on slopes or uneven ground. There is increased danger of slipping on freshly debarked logs. Warning! To reduce the risk of serious or fatal injury to the operator or bystanders, never use the saw with one hand. You cannot control reactive forces and you may lose control of the saw, which can result in theskating or bouncing of the bar and chain along the limb or log. Even for those compact saws designed for use in confined spaces, one-handed operation is dangerous because the operator may lose control. Cutting Instructions Grip: Always hold the saw firmly with both hands when the engine is running. Place your left hand on front handle bar and your right hand on rear handle and throttle trigger. Left-handers should follow these instructions too. 001BA055 LA Wrap your fingers tightly around the handles, keeping the handles cradled between your thumb and forefinger. With your hands in this position, you can best oppose and absorb the push, pull and kickback forces of your saw without losing control (see section on reactive forces). Make sure your chainsaw handles and grip are in good condition and free of moisture, pitch, oil or grease. Warning! Do not operate your chainsaw with the starting throttle lock engaged. Cutting with the starting throttle lock engaged does not permit the operator proper control of the saw or chain speed. Warning! Never touch a chain with your hand or any part of your body when the engine is running, even when the chain is not rotating. The chain continues to rotate for a short period after the throttle trigger is released. Warning! Do not cut any material other than wood or wooden objects. Use your chainsaw for cutting only. It is not designed for prying or shoveling away limbs, roots or other objects. When sawing, make sure that the saw chain does not touch any foreign materials such as rocks, fences, nails and the like. Such objects may be flung off, damage the saw chain or cause the saw to kickback. In order to keep control of your saw, always maintain a firm foothold. Never work on a ladder, i n a tree or on any other insecure support. Never use the saw above shoulder height. Position the chain saw in such a way that your body is clear of the cutting attachment whenever the engine is running. Stand to the left of cut while bucking. Don't put pressure on the saw when reaching the end of a cut. The pressure may cause the bar and rotating chain to pop out of the cut or kerf, go out of 10 control and strike the operator or some other object. If the rotating chain strikes some other object, a reactive force may cause the moving chain to strike the operator. Reactive forces including kickback Warning! Reactives forces may occur any time the chain is rotating. Reactives forces can be dangerous! In any chain saw, the powerful force used to cut wood can be reversed (and work against the operator). If the rotating chain is suddenly stopped by contact with any solid object like a log or branch or is pinched, the reactive forces may occur instantly. These reactive forces may result in loss of control which may, in turn, cause serious or fatal injury. An understanding of the causes of these reactive forces may help you avoid loss of control. The most common reactive forces are — kickback, — pushback, — pultin. Kickback: Kickback occurs when the upper quadrant of the bar nose contacts a solid object or is pinched. The reaction of the cutting force of the chain causes a rotational force on the chain saw in the direction opposite to the chain movement. This may fling the bar up and back in an uncontrolled arc mainly in the plane of the bar. Under some cutting circumstances the bar moves towards the operator, who may suffer severe or fatal injury. Kickback may occur when the nose of the guide bar is pinched unexpectedly, unintentio- nally contacts solid material in the wood or is incorrectly used to begin a plunge or boring cut. It may also occur during limbing. The greater the force of the kickback reaction, the more difficult it becomes for the operator to control the saw. Many factors influence the occurrence and force of the kickback reaction. These include chain speed, the speed at which the bar and chain contact the object, the angle of contact, the condition of the chain and other factors. The type of bar and saw chain you use is an important factor in the occurrence and force of the kickback reaction. Some STIHL bar and chain types are designed to reduce kickback forces. STIHL recommends the use of reduced kickback bars and low kickback chains. ANSI B 175.1-1991 chain saw kickback standard Section 5.12 of ANSI standard B 175.1— 1991, sets certain performance and design criteria related to chain saw kickback. To comply with section 5.12 of ANSI B 175.1-1991: a) saws with a displacement of less than 3.8 cubic inches — must, in their original condition, meet a 45° computer derived kickback angle when equipped with certain cutting attachments. — and must be equipped with at least two devices to reduce the risk of kickback injury, such as a chain brake, low kickback chain, reduced kickback bar, etc. b) saws with a displacement of 3.8 cubic inches and above — must be equipped with at least one device designed to reduce the risk of kickback injury such as a chain brake, low kickback chain, reduced kickback bar, etc. These kickback requirements do not apply to chain saws fitted with bow guides. Bow-equipped saws are only for use by thoroughly instructed and experienced operators. Use of bow guides may result in serious or fatal injury. See section entitled ,Bow Guides“ of this manual. The computer derived angles for saws below 3.8 cubic inch displacement are measured by applying a computer program to test results from a kickback test machine. Warning! The computer derived angles of § 5.12 of ANSI B 175.1-1991 may bear no rela- tionship to actual kickback bar rotation angles that may occur in real life cutting situations. Compliance with § 5.12 of ANSI B 175.1-1991 does not automatically mean that in a real life kickback the bar and chain will rotate at most 45°. 11 Warning! In order for powerheads below 3.8 cubic inch displacement to comply with the computed kickback angle requirements of § 5.12 of ANSI B 175.1-1991 use only the following cutting attachments: — bar and chain combinations listed as complying in the , Specifications” section of the Owner’s Manual or — other replacement bar and chain combinations marked in accordance with the standard for use on the powerhead or — replacement chain designated „low kickback saw chain"). Warning! There are potential powerhead and bar combinations with which low kickback saw chains can be used which have not been specifically certified to comply with the 45° computer derived kickback angle of § 5.12 of ANSI B 175.1-1991. Some low kickback chains have not been tested with all powerhead and bar combinations. 1) Low kickback saw chain“ is a chain which has met the kickback performance requirements of § 5.12.2.4 of ANSI B 175.1-1991 (Safety Require- ments for Gasoline-Powered Chain- Saws) when tested on a selected repre- sentative sample of chain saws below 3.8 cubic inch displacement specified in ANSI B 175.1-1991. 12 STIHL offers a variety of bars and chains. STIHL reduced kickback bars and low kickback chains are designed to reduce the risk of kickback injury. Other chains are designed to obtain higher cutting efficiency or sharpening ease but may result in higher kickback tendency. STIHL has developed a color code system to help you identify the STIHL reduced kickback bars and low kickback chains. Cutting attachments with green warning decals or green labels on the packaging are designed to reduce the risk of kickback injury. The matching of green decaled powerheads under 3.8 cubic inch displacement with green labeled bars and green labeled chains gives compliance with the computed kickback angle requirements of ANSI B 175.1-1991 when the products are in their original condition. Products with yellow decals or labels are for users with extraordinary cutting needs and experience and specialized training for dealing with kickback. STIHL recommends the use of its green labeled reduced kickback bars, green labeled low kickback chains and a STIHL Quickstop chain brake for both experienced and inexperienced chain saw users. Please ask your STIHL dealer to properly match your powerhead with the appropriate bar/chain combinations to reduce the risk of kickback injury. Green labeled bars and chains are recommended for all powerheads. See your ,STIHL Bar and Chain Information“ leaflet for details. Warning! Use of other, non-listed bar/chain combinations may increase kickback forces and increase the risk of kickback injury. New bar/chain combinations may be developed after publication of this literature, which will, in combination with certain powerheads, comply with § 5.12 of ANSI B 175.1-1991. Check with your STI HL dealer for such combinations. Guard Guard Bow Guides Warning! Any chain saw equipped with a bow guide is potentially very dangerous. Improper use can result in kickback, pushback or pull-in, and very serious injury or death. Only thoroughly instructed and experienced operators should use a chain saw equipped with a bow guide. A bow guide (or bow bar) is a specially designed substitution for a regular guide bar. Like a regular guide bar, it supports and guides the saw chain. Unlike à regular guide bar, it consists of a narrow rail structure with a large open space in the middle. Ferrey Warning! The risk of kickback is increased with a bow guide because of the increased kickback contact area. STIHL recommends the use of the STIHL Quickstop chain brake. Low kickback chain will not significantly reduce the risk of kickback injury when used on a bow guide. Only STIHL bow guides are approved for use with STIHL powerheads. The use of other bow guides with a STIHL powerhead can be hazardous to the operator due to the absence of safety guards and spurs and necessary unauthorized modifications needed to mount the bow guide to the STIHL powerhead. Do not use a STIHL bow guide on any powerhead except a STIHL powerhead. Un- authorized combinations are dangerous. Warning! Never attempt to operate a chain saw equipped with a bow guide unless the spurs and both guards are in place. Under no circumstances should any of the spurs or guards be removed. Keep the nuts which hold these items in place tightened at all times. The guards at the top and bottom of the bow guide are required to reduce the possibility of injury caused by contact with the chain. These guards are slotted to allow positioning as close to the powerhead as possible. After the bow guide is mounted on the chain saw, slide the guards as close to the powerhead as possible. The spurs should always be placed firmly against the wood before starting a cut and should be kept against the wood until the cut is completed. Failure to keep the spurs firmly against the wood during the entire cut could cause the saw to react violently and could result in serious injury or death to the operator. Warning! Be sure to keep the chain properly tensioned. A chain which ,sags“ or is too loose could jump off the bow and result in serious injury to the operator. Felling with a bow bar is dangerous, because it is more difficult to follow safe felling techniques. Cut only one log at a time. A chain catcher which has been removed to allow mounting of a bow guide must be reattached when remoun- ting the regular guide bar. 13 001BA036 LA Devices for reducing the risk of kickback injury STIHL recommends the use of the STIHL Quickstop chain brake on your powerhead with green labeled reduced kickback bars and low kickback chains. Caution! If the chain brake does not function correctly, stop using the saw immediately. Risk of injury! Take the saw to your local STIHL Service Centre! Do not use the saw until the fault has been rectified (see the section "Chain Brake") 14 Quickstop chain brake STIHL has developed a chain stopping system designed to reduce the risk of injury in certain kickback situations. It is called a Quickstop chain brake. The Quickstop is available as standard equipment on your STIHL chain saw and is available for installation on most older STIHL saws. Ask your dealer to retrofit your older model saw with a chain brake. When a kickback occurs, the guide bar may rotate around the front handle. If the cutting position is such that the operator's left hand is gripping the front handle behind the hand guard, and if the left hand rotates around the front handle and contacts the front hand guard, which is the Quickstop activating lever, this contact will activate the Quickstop. The chain brake on most new model STIHL chain saws can also be activated by inertia. See the chapter entitled "Chain Brake" of your Owner’s Manual. Warning! Never operate your chain saw without a front hand guard. In a kickback situation this guard helps protect your left hand or other parts of your body. In addition, removal of the hand guard on a saw equipped with a chain brake will deactivate the chain brake. Warning! No Quickstop or other chain brake device prevents kickback. These devices are designed to reduce the risk of kickback injury, if activated, in certain kickback situations. In order for the Quickstop to reduce the risk of kickback injury, it must be properly maintained and in good working order. See the chapter entitled " Chain Brake " and "Maintenance, Repairand Storing" of your Owner’s Manual. In addition, there must be enough distance between the bar and the operator to ensure that the Quickstop has sufficient time to activate and stop the chain before potential contact with the operator. Reduced kickback bar STIHL green labeled reduced kickback bars are designed to reduce the risk of kickback injury when used with STIHL green labeled low kickback chains. Warning! When used with other, more aggressive chains, these bars may be less effective in reducing kickback, and may result in higher kickback forces. Low kickback chain Some types of saw chain have specially designed components to reduce the force of nose contact kickback. STIHL has developed low kickback chain for your powerhead. Warning! A dull or improperly sharpened chain may reduce or negate the effects of the design features intended to reduce kickback energy. Improper lowering or sharpening of the depth gauges or shaping of the cutters may increase the chance and the potential energy of a kickback. Always cut with a properly sharpened chain. Warning! Reduced kickback bars and low kickback chains do not prevent kickback, but they are designed to reduce the risk of kickback injury. They are available from your STIHL dealer. Warning ! Even if your saw is equipped with a Quickstop, a reduced kickback bar and/or low kickback chain, this does not eliminate the risk of injury by kickback. Therefore, always observe all safety precautions to avoid kickback situations. To avoid kickback The best protection from personal injury that may result from kickback is to avoid kickback situations: 1. Hold the chain saw firmly with both hands and maintain a secure grip. 2. Be aware of the location of the guide bar nose at all times. 3. Never let the nose of the guide bar contact any object. Do not cut limbs with the nose of the guide bar. Be especially careful when cutting small, tough limbs, small size brush and saplings which may easily catch the chain. Don’t overreach. Dont cut above shoulder height. Begin cutting and continue at full throttle. 7. Cut only one log at a time. 8. Use extreme caution when re-entering a previous cut. us 10. 11. 12. Do not attempt to plunge cut if you are not experienced with these cutting techniques. Be alert tor shifting of the log or other forces that may cause the cut to close and pinch the chain. Maintain saw chain properly. Cut with a correctly sharpened, properly tensioned chain at all times. Stand to the side of the cutting path of the chain saw. 15 Cem nn Push mr «+ > — —) — EN Pushback: Pushback occurs when the chain on the top of the bar is suddenly stopped when it is pinched, caught or encounters a foreign object in the wood. The reaction of the chain drives the saw straight back toward the operator and may cause loss of saw control. Pushback frequently occurs when the top of the bar is used for cutting. To avoid pushback 1. Be alert to forces or situations that may cause material to pinch the top of the chain. 16 2. Do not cut more than one log at a time. 3. Do not twist the saw when withdraw- ing the bar from a plunge cut or underbuck cut because the chain can pinch. Pull-in: Pull-in occurs when the chain on the bottom of the bar is suddenly stopped. The chain on the bottom of the bar stops when it is pinched, caught or encounters a foreign object in the wood. The reaction of the chain pulls the saw forward and may cause the operator to lose control. Pull-in frequently occurs when the bumper spike of the saw is not held securely against the tree or limb and when the chain is not rotating at full speed before it contacts the wood. Warning! Use extreme caution when cutting small size brush and saplings which may easily catch the chain and pull you off balance. To avoid pull-in 1. Always start a cut with the chain rotating at full speed and the bumper spike in contact with the wood. 2. Pull-in may also be prevented by using wedges to open the kerf or cut. Cutting Techniques Felling Felling is cutting down a tree. Before felling a tree, consider carefully all conditions which may affect the direction of fall, including: The intended direction of the fall. The natural lean of the tree. Any unusually heavy limb structure. Surrounding trees and obstacles. The wind direction and speed. Warning! Always observe the general condition of the tree. Inexperienced users should never attempt to cut trees which are decayed or rotted inside or which are leaning or otherwise under tension. There is an increased risk that such trees could snap or split while being cut and cause serious or fatal injury to the operator or bystanders. Also look for broken or dead branches which could vibrate loose and fall on the operator. When felling on a slope, the operator should stand on the uphill side if possible. и к y NW LL SNe Lo | Je 1/2 NW ~~ 7 sta es fom fs < 2 1/2 When felling in the vicinity of roads, railways and power lines, eic., take extra precautions. Inform the police, utility company or railway authority before beginning to cut. When felling, maintain a distance of at least 21/2tree lengths from the nearest person. Note: The noise of your engine may drown any warning call. 17 A A к ~ À ~ Е 001BA Felling Instructions: If the tree has large buttress roots, cut Conventional cut into the largest buttress vertically first (horizontally next) and remove the resulting piece. First clear the tree base and work area from interfering limbs and brush and A = felling notch - determines the direction of the fall clean its lower portion with an axe. Then, establish a path of escape (B) and remove all obstacles. This path should be generally opposite to the planned direction of the fall of the tree (A) and at about a 45° angle. An alternate path (B) must also be selected. Place all tools and equipment a safe distance away from the tree, but not on the escape path. 18 For a conventional cut: e Properly place felling notch perpendicular to the line of fall, close to the ground e Cut down at app. 45-degree angle to a depth of about 1/5 to 1/4 of the trunk diameter Make second cut horizontal Remove resulting 45-degree piece de AZ MN NL ‘ 001BA042 LA 001BA043 LA <> т | q ASS œ 001BA044 LÀ Open-face technique A = felling notch - determines the direction of the fall For an open-face cut: e Properly place felling notch perpendicular to the line of fall, close to the ground | @ Cut down at app. 50-degree angle to a depth of app.1/5 to 1/4 of the trunk diameter e Make second cut from below at app. 40 degree angle @ Remove resulting 90-degree piece Making sapwood cuts ® For medium sized or larger trees make cuts at both sides of the trunk, @ at same height as subsequent felling cut. ® Cut to no more than width of guide bar This is especially important in soft wood in summer- it helps prevent sapwood splintering when the tree falls. B = Felling cut Conventional and open-face technique: @ Begin 1 to 2 inches higher than center of felling notch e Cut horizontally towards the felling notch ® Leave approx.'/100f diameter uncut. This is the hinge e Do not cut through the hinge — you could lose control of the direction of the fall Drive wedges into the felling cut where necessary to control the fall. Warning! If the tip of the bar contacts a wedge, it may cause kickback. Wedges should be of wood or plastic — never steel, which can damage the chain. 19 © Ç и iy C = Hinge @ Helps control the falling tree e Do not cut through the hinge - you could lose control of the direction of the fall Warning! In order to reduce the risk of personal injury, never stand directly behind the tree when it is about to fall, since part of the trunk may split and come back towards the operator (barber- chairing), or the tree may jump backwards off the stump. Always keep to the side of the falling tree. When the tree starts to fall, withdraw the bar, shut off the engine and walk away on the preplanned escape path. Watch out for falling limbs. 20 Warning! Be extremely careful with partially fallen trees which are poorly supported. When the tree hangs or for some other reason does not fall completely, set the saw aside and pull the tree down with a cable winch, block and tackle or tractor. If you try to cut it down with your saw, you may be injured. Felling cut for small diameter trees: simple fan cut Engage the bumper spikes of the chain saw directly behind the hinge and pivot the saw around this point only as far as the hinge. The spiked bumper rolls against the trunk. ANNAN Felling cut for large diameter trees: sectioning method Warning! Felling a tree that has a diameter greater than the length of the guide bar requires use of either the sectioning felling cut or plunge-cut method. These methods are extremely dangerous because they involve the use of the nose of the guide bar and can result in kickback. Only properly trained professionals should attempt these techniques. For the sectioning method make the first part of the felling cut with the guide bar fanning in toward the hinge. Then, using the bumper spike as a pivot, reposition the saw for the next cut. ле в Avoid repositioning the saw more than necessary. When repositioning for the next cut, keep the guide bar fully engaged in the kerf to keep the felling cut straight. If the saw begins to pinch, insert a wedge to open the cut. On the last cut, do not cut the hinge. Plunge-cut method Timber having a diameter more than twice the length of the guide bar requires the use of the plunge-cut method before making the felling cut. First, cut a large, wide felling notch. Make a plunge cut in the center of the notch. The plunge cut is made with the guide bar nose. Begin the plunge cut by applying the lower portion of the guide bar nose to the tree at an angle. Cut until the depth of the kerf is about the same as the width of the guide bar. Next, align the saw in the direction in which the recess is to be cut. With the saw at full throttle, insert the guide bar in the trunk. Enlarge the plunge cut as shown in illustration. Warning! There is an extreme danger of kickback at this point. Extra caution must be taken to maintain control of the saw. To make the felling cut, follow the sectioning method described previously. If you are inexperienced with a chain saw, plunge-cutting should not be attempted. Seek the help of a professional. Limbing Limbing is removing the branches from a fallen tree. Warning! There is an extreme danger of kickback during the limbing operation. Do not work with the nose of the bar. Be extremely cautious and avoid contacting the log or other limbs with the nose of the guide bar. Do not stand on a log while limbing it — you may slip or the log may roll. Start limbing by leaving the lower limbs to support the log off the ground. When underbucking freely hanging limbs, a pinch may result or the limb may fall, causing loss of control. If a pinch occurs, stop the engine and remove the saw, by lifting the limb. 21 2 a) Y Warning! 2. Cut only one log at a time. 5. Logs under strain: Risk of pinching! Always start relieving cut (1) at Be extremely cautious when cutting 3. Shattered wood should be cut very compression side (A). limbs or logs under tension (spring carefully. Sharp slivers of wood may Then make bucking cut (2) at poles). The limbs or logs could spring be caught and flung in the direction of tension side (B). back toward the operator and cause loss the operator of the saw. If the saw pinches, stop the engine of control of the saw and severe or fatal and remove it from the log. injury to the operator. 4. When cutting small logs, place log through ,V* - shaped supports ontop 6. Only property trained professionals Bucking of a sawhorse. Never permit another should work in an area where the logs, Bucking is cutting a log into sections. person to hold the log. Never hold the limbs and roots are tangled. Working log with your leg or foot. in blowdown areas is extremely Warnings! hazardous. 1. When bucking, do not stand on the log. Make sure the log will not roll 7. Drag the logs into a clear area before downhill. If on a slope, stand on the cutting. Pull out exposed and cleared uphill side of the log. Watch out for logs first, rolling logs. 22 JE pe. MAINTENANCE, REPAIR AND STORING Use only STIHL replacement parts for maintenance and repair. Use of parts manufactured by others may cause serious or fatal injury. Never operate a chainsaw that is damaged, improperly adjusted or not completely or securely assembled. Follow the maintenance and repair instructions in the appropriate section of your Owners Manual, especially those in the chapters " Mounting the bar and chain" "Maintaining and Sharpening" and "Chain Brake". Warning! Always stop the engine and ensure that the chain is stopped before making any adjustments, maintenance or repair work, changing the saw chain or cleaning the saw. Do not attempt any maintenance or repair work not described in your Owner’s Manual. Have such work performed at your STIHL service shop only. Never test the ignition system with ignition wire terminal removed from spark plug or with unseated spark plug, since uncontained sparking may cause a fire. Warning! To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. 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 terminal and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire. Keep spark plug clean, and make sure ignition lead is in good condition. Warning! Do not operate your chainsaw if the muffler is damaged, missing or modified. An improperly maintained muffler will increase the risk of fire and hearing loss. Never touch a hot muffler or burn will result. If your muffler was equipped with a spark-arresting screen to reduce the risk of fire (e. g. in the USA, Canada and Australia), never operate your saw if the screen is missing or damaged. Remember that the risk of forest fires is greater in hot or dry weather. Keep the chain, bar and sprocket clean; replace worn sprockets or chains. Keep the chain sharp. You can spot a dull chain when easy-to-cut wood becomes hard to cut and burn marks appear on the wood. Keep the chain at proper tension. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use. Warning!In order for the chain brake on your STIHL chainsaw to properly perform its function of reducing the risk of kickback and other injuries, it must be properly maintained. Like an automobile brake, a chainsaw chain brake incurs wear each time it is engaged. The amount of wear will vary depending upon usage, conditions under which the saw is used and other factors. Excessive wear will reduce the effectiveness of the chain brake and can render it inoperable. For the proper and effective operation of the chain brake the brake band and clutch drum must be kept free of dirt, grease and other foreign matter which may reduce friction of the band on the drum. For these reasons, each STIHL chainsaw should be returned to trained personnel such as your STIHL servicing dealer for periodic inspection and servicing of the brake system according to the following schedule: Heavy usage - every three months, Moderate usage - twice a year, Occasional usage - annually. The chainsaw should also be returned immediately for maintenance whenever the brake system cannot be thoroughly cleaned or there is a change in its operating characteristics. Additionally, the daily maintenance schedule for your chainsaw set forth in your STIHL Owner's Manual should be strictly followed. Store chainsaw in a dry place and away from children. Before storing for longer than a few days, always empty the fuel tank. 23 Mounting the Bar and Chain n | EL e Unscrew nuts and take off cover © Turntensioning screw (1) counter- Disengage the chain brake: clockwise until the peg of Pull hand guard (3) toward the front the tensioner slide (2) butts against handle. left end of housing slot. e Wear work gloves to protect hands @ Fitthechain-startatthe barnose. 24 de MOJO En A Fit the guide bar over the studs (4) — cutting edges on top of bar must point to right — and engage the peg of the tensioner slide in locating hole (5) — place the chain over sprocket (6) at the same time — Now turn tensioning screw (7) clockwise until there is very little chain sag on the underside of the bar —and the drive link tangs are located in the bar groove. ® Refitthe sprocket cover— and screw onthe nuts only finger-tight. e Tensioningthe chairi— See section “Tensioning the Saw Chain” Tensioning the Saw Chain i Y К — A 00 he Retensioning during cutting work: Shut down the engine — and then slacken the nuts. e Holdthebarnose up-anduse screwdriverto turn tensioning screw (1) clockwise until chain fits snugly against the underside of the bar— while still holding bar nose up, tighten downthe nuts firmly. 26 Checking chain tension e Wearwork gloves. e Chain must fit snugly against the underside of the bar— e and, withthe chain brake disengaged, it must still be possible to pull the chain along the bar by hand. e Ifnecessary, retension the chain. Anew chain has to be retensioned more often than one that has been in use for some time — check chain tension frequently — see section «During Operation». Fuel mix Your two-stroke engine requires a mixture of brand-name gasoline and quality two-stroke engine oil with the classification TC. Use regular branded unleaded gasoline with a minimum octane number of 90 ROZ (U.S.A./Canada: pump octane min. 89). If the octane number of the regular grade gasoline in your area is lower use premium unleaded fuel. Fuel with a lower octane number may result in preignition (causing “pinging”) which is accompanied by an increase in engine temperature. This, in turn, increa- ses the risk of the 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 as well. This could cause running problems or even damage the engine. For this reason it is essential that you use only name branded fuels! Use only STIHL two-stroke engine oil or equivalent branded two-stroke air-cooled engine oils with the classification TC for mixing. We recommend STIHL 50:1 two-stroke engine oil since it is specially formulated for use in STIHL engines. The mix ratio with STIHL oil is 50:1 (50 parts gasoline to 1 part oil}, or 25:1 (25 parts gasoline to 1 part oil) with other branded two-stroke air-cooled engine oils. Do not use BlA or TCW (two-stroke water cooled) mix oils! Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapour. The canister should be kept tightly closed in order to avoid any moisture getting into the mixture. The fuel tank and the canister in which fuel mix is stored should be cleaned from time to time. Fuel mix ages: Only mix sufficient fuel for a few days work, not to exceed 30 days of storage. Store in approved safety fuel-canisters only.When mixing, pour oil into the canister first, and then add gasoline. 27 FN ame Gaso- 5STIHL Other branded line engine oil TC oils 50:1 25:1 Liters Liters (cc) Liters (cc) 1 0.02 (20) 0.04 (40) 5 0.10 (100) 0.2 (200) 10 0.20 (200) 04 (400) 15 0.30 (300) 0.6 (600) 20 0.40 (400) 0.8 (800) 25 0.50 (500) 1.0 (1000) Gaso- STIHL Other branded line engine oil TC oils 50:1 25:1 US gal. US fl.oz US fl.oz 1 2.6 5.1 212 64 12.8 5 12.8 25.6 28 Fueling 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. Warning! 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 build-up in the tank to release slowly. Warning! After fueling, tighten fuel cap as securely as possible by hand. Use a suitable tool (e.q. screwdriver end of combination wrench) to tighten slotted fuel caps. Change the fuel pick up body every year. Before storing your machine for a long period, drain and clean the fuel tank and run engine until carburetor is dry. Chain lubricant Only ecologically acceptable, high- quality chain oil - preferably STIHL chain lubricant with non-fling additive or the rapidly biodegradable STIHL Bioplus - should be used for automatic, durable lubrication of the saw chain and guide bar. The quality of the lubricant has a decisive effect on the service life of the saw chain and guide bar. Only special-purpose chain oil should therefore be used! One of the following HD single-range oils may be used in exceptional cases if a special-purpose chain lubricant is not available. At outside temperatures of +10°C...+40°C SAE 30 +10°C...—10°C SAE 20 — 10 °С...- 80 °С SAE 20W/10W Waste oil must not be used! Waste oil does not have the required lubricating properties and is unsuitable for chain lubrication. Waste oil is environmentally harmful and can cause skin cancer as a result of prolonged and repeated contact! Fill chain Ó lubricant 143BA010 e Thoroughly clean the filler cap and surrounding area so that dirt cannot fall into the tank. e Fill with chain lubricant - whenever the chainsaw is refuelled. A small amount of lubricant remains in the oil tank when the fuel tank is empty. If the amount of lubricant in the oil tank does not decrease, this may be due to a fault in the lubricant supply: check lubrication of the chain, clean the oil ducts and contact the STIHL service centre if necessary. 29 nA a“ EEE N Ча ОН НЫ РО Ин о yr EY. UE Chain Brake Locking chain with chain brake - in an emergency - when starting - at idling speed. @ The chain is stopped and locked when the hand guard is pushed toward the bar nose by the left hand - or when brake is activated by inertia in certain kickback situations. 30 Releasing the chain brake e Full the hand guard back toward the front handle. Note: Always disengage chain brake before accelerating engine and before starting cutting work. The only exception to this rule is when you check operation of the chain brake. High revs with the chain brake engaged (chain locked) will quickly damage the powerhead and chain drive (clutch, chain brake). The chain brake is activated by the inertia of the front hand guard if the kickback force of the saw is high enough: The hand guard is accelerated toward the bar nose - even if your left hand is not behind the hand guard, e.g. during felling cut. The chain brake will operate only if the hand guard has not been modified in any way. Check operation of chain brake Before starting work: Run engine at idle speed, engage the chain brake (push hand guard toward bar nose). Accelerate up to full throttle for no more than 3 seconds - the chain must not rotate. The hand guard must be free of dirt and move freely. Chain brake maintenance The chain brake is subject to normal wear and tear. It must therefore be checked and serviced regularly by trained personnel (e.g. STIHL dealer) at the following intervals: Full-time professional users: every 3 months Semi-professional users: every 6 months Occasional users: every 12 months _—— « —— Information Before You Start - don't start the engine yet! — 3 = Wj = I nd N md? UN The four positions of the Master Control lever To start the engine, move the lever to “Cold Start” position (1) — do not use force. If the Master Control lever is on “Run” (3): Press down the throttle trigger interlock — and move the Master Control lever downward. “Cold Start” position: Choke shutter is closed — throttle trigger is in starting- throttle position. A cold engine should be started in this position. As soon as engine begins to fire, move the Master Control lever to “Warm Start” position (2): Move the Master Control lever one notch upward. ii 2 № 5 и | 3 mo = | 7 = \( > eH he | “Warm Start” position: Choke shutter is open — throttle trigger is in starting- throttle position. If you leave the Master Control lever in the “Cold Start” position, the combustion chamber will flood and stall the engine. The Master Control lever must be in “Warm Start” position (2) to start awarm engine. Also select this position if engine has been running but is still cold. The Master Control lever should not be forced to “Run” position (3) — it will move to “Run” as soon as the throttle trigger is activated. In the “Warm Start” position, continue cranking after engine begins to fire. As soon as the engine runs, immediately blip the throttle trigger so that the Master Control lever moves to “Run” — idling position — normal operating position (3). To shut down the engine: Move the Master Control lever upward to “STOP” position (4): The stop contact engages the contact spring — this cuts out the ignition system. 31 Starting the Saw => — E Fi EE 8 m EA E — | 8 Es — ны Only machines with decompression valve: e Press in the button. Compression pressure is released when the button is pressed in. This helps reduce the effort required to pull the starter rope. e Forthis reason the button should be pressed in before each starting attempt. 32 All other versions Observe safety precautions - see section "Safety Precautions”. Push hand guard forward (1): The chain is now locked - Press throttle trigger interlock (2) and set Master Control lever to: For cold start | For warm start )“( (even if engine has been running butis still cold) Place your saw on the ground - make sure you have a firm footing - check that chain is not touching any object or the ground - bystanders must be well clear of general work area of the saw - Hold the saw firmly on the ground with your left hand on the front handle - your thumb should be under the handle - put your right foot into the rear handle and press down. Alternative method of starting: Hold the rear handle tightly between your legs, just above the knees - grip the front handle firmly with your left hand - your thumb should be under the handle - Pull the starter grip slowly with your right hand until you feel it engage - then give the grip a brisk strong pull and push down the front handle at the same time - do not pull out starter rope more than 70 cm (about 28 in) - it might otherwise break. Do not let the starter grip snap back - guide it slowly into the housing so that the starter rope can rewind properly. If engine is new, pull starter grip several times to prime the fuel line. When engine begins to fire: Move Master Control lever (3) to )x( and continue cranking - as soon as engine runs, inmediately blip the throttle trigger (4) - the Master Control lever (3) will move to "Run" position (5) I and the engine settles down to idling speed. As the chain brake is still engaged, the engine must be returned to idling speed immediately to avoid damage to the engine and chain drive (clutch, chain brake). 33 SS a e Pull the hand guard back toward the front handle: CS The chain brake is now disengaged your saw is ready for operation. Always disengage the chain brake before opening the throttle. Running the engine at higher revs with the chain brake engaged (saw chain at a standstill) will quickly damage the engine and chain drive (clutch, chain brake). e Observe safety precautions. e Always check operation of chain lubrication before starting work. Shut down engine: ® Move Master Control lever to "Stop" ©! 34 At very low outside temperatures: Allow engine to warm up As soon as the engine runs: e Blip the throttle trigger to disengage it from starting throttle position - Master Control lever will move to normal operating position - engine settles down to idling speed. e Disengage chain brake: Pull hand guard toward front handie - as shown in illustration - e Open throttle slightly - warm up engine for short period. @ Change over to winter operation if necessary - see section "Winter Operation". & | RE \ = If engine doesn’t start: If you did not move the Master Control lever to "Warm Start" )( quickly enough after the engine began to fire, the combustion chamber has flooded. e Press the throttle trigger interlock and e set the Master Control lever to "Cold Start" |] e Turn the twist lock above the rear handle counterclockwise - slot vertical - and e lift off the carburetor box cover vertically || Machines with standard (wire mesh) filter: Remove the filter element - Pull off the spark plug terminal - Unscrew and dry off the spark plug - Set the Master Control lever to ©! Crank the engine several times with the starter to clear the combustion chamber - Refit the spark plug and connect the spark plug terminal - reassemble all other parts Set Master Control lever to "Warm Start" )x ( even if engine is cold - Now start the engine. Checking Chain Lubrication Fuel tank run until dry and then refueled e Pullstarter rope several times until @ fuel line is primed. The saw chain must always throw off a small amount of oil. Never operate your saw without chain lubrication. If the chain is run dry the whole cutting attachment will be irretrievably damaged within a very short time. Always check chain lubrication and oil level in tank before starting work. Every new chain has to be broken in for about 2 to 3 minutes. After breaking in chain, check chain tension and adjust if necessary - see section "Checking chain tension". 35 Oil Quantity E Control 7 Se sr DB— Different quantities of oil are required for different bar lengths, types of wood and cutting techniques. Use the adjusting screw (1) to vary the oil feed rate as required. e Most economic setting - turn adjusting screw to "E" (Ematic position). To increase oil feed - turn adjusting screw clockwise. e To reduce oil feed - turn adjusting screw counterclockwise. Your chain must always be wetted with a film of lubricant. 36 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. Do not make the mixture leaner to achieve an apparent increase in power - this could cause the engine to exceed its maximum permissible r.p.m. - see section "Adjusting Carburetor”. Important: Always disengage the chain brake before opening the throttle. Running the engine at higher revs with the chain brake engaged (saw chain at a standstill) will quickly damage the engine and chain drive (clutch, chain brake). During Operation Check chain tension frequently. A new chain has to be retensioned more often than one that has been in use for some time. Chain cold: Tension is correct when chain fits snugly against the underside of the bar and can still be pulled along the bar by hand. Retension if necessary - see section "Tensioning the Saw Chain". Chain at operating temperature: The chain stretches and begins to sag. The drive links must not come out of the bar groove - the chain may otherwise jump off the bar. Retension the chain - see section "Tensioning the Saw Chain". Always slacken off the chain after finishing work. The chain contracts as it cools down. If it is not slackened off, it can damage the crankshaft and bearings. After long period of full-throttle operation Allow engine to run for a short while at idling speed so that engine heat can be dissipated by flow of cooling air. This protects engine-mounted components (ignition, carburetor) from thermal over- load. Cleaning Air Filter Pre, Le When there is a noticeable loss of engine power Press throttle trigger interlock and set Master Control lever to "Cold Start" | Turn the twist lock above the rear handle counterclockwise - slot vertical - and lift off the carburetor box cover vertically Clean away dirt from around filter - S.L TD Standard (wire mesh) filter Remove rear half of filter Unscrew slotted nut Remove front half of filter Wash filter in a clean, noninflammable cleaning solution (e.g. warm soapy water) and then dry Always replace a damaged filter element e Reinstall the filter 37 EC ETT Te a oe HD (textile) filter 1 = Prefilter: When there is a noticeable loss of engine power 2 = HD air filter: After cleaning prefilter several times 3 = Foam element: As required, together with HD filter Separate the two halves of the filter and wash in a clean, non-inflammable cleaning solution (e.g. warm soapy water). Always replace a damaged filter element. Do not use a high-pressure washer to clean the filter. Rinse the HD filter, from the inside out- wards, under a low-pressure water jet. 38 au "oa 1 Hy ak lis | STIHL Dry all parts of the filter. Do not expose to high temperatures. Do not install the filter in a dry condition. It must be impregnated with HD air filter oil before it is refitted. Use only STIHL HD air filter oil. Reinstall the filte After Finishing Work Slacken off the chain if you have retensioned it at operating temperature during cutting work. The chain contracts as it cools down. If it is not slackened off, it could damage the crankshaft and bearings. Before storing your saw for a long period - e Drain and clean the fuel tank e Run engine until carburetor is dry Winter Operation i © ae (NL At temperatures below +10 °C/+14 °F - preheat carburetor Press throttle trigger interlock and set Master Control lever to "Cold Start" |= Turn the twist lock above the rear handle counterclockwise - slot vertical - and lift off the carburetor box cover vertically - Machines with standard wire-mesh filter: Remove the filter - Open the rotary shutter (to right of spark plug). Refit the filter and carburetor box cover and secure it with the twist lock: Heated air is now drawn in from around the cylinder and mixed with cold air - this prevents carburetor icing. At temperatures above +20 °C/70 °F - return shutter to summer position (closed) - This is essential to avoid engine running problems - overheating. At temperatures below -10 °C (+4 °F): It is advisable to fit the optional intake air preheating kit* if you use your saw in extremely cold conditions (temperatures below -10 °C /+4 °F, in powder or drifting snow). When fitted, the kit ensures that only heated air is drawn in from around the cylinder - it prevents air filter and carburetor icing. The rotary shutter for carburetor preheating must be fully open when the intake air preheating kit is fitted. If your saw is very cold (frost or ice on machine), start the engine and keep it at a high idle speed (with chain brake disengaged) until it reaches normal operating temperature. The air filter may load up faster when you use intake air preheating - clean it more frequently. In the event of engine running problems, first check that conditions for use of intake air preheating still apply. *Special accessory 39 Wey. TE OW TW WEEE WOW OWA CWE OTRO OE CH CWE TETE ECW OW E * Electric Handle de Taking Care of Guide Bar Heating (Option) Switching on electric handle heating” e Turn the bar over - every time you sharpen the chain - e Move switch on front handle to "I". and every time you replace the chain - this avoids one-sided wear, e Move switch back to "0" especially at nose and to switch off heating. underside of the bar. There is no risk of overheating Regularly clean during long periods of operation. 1 = oil inlet hole The whole heating system is 2 = oilway maintenance-free. 3 = bar groove. e Measure groove depth - with scale on filing gauge” - at nose of Duromatic bars - in area used most for cutting on Rollomatic bars - *Special accessory *Special accessory 40 Chain type and minimum groove depth Rapid 3/8" 6.0 mm (0.24") Rapid 0.404" 7.0 mm (0.27") If groove depth is less than specified: Replace the guide bar. The drive link tangs will otherwise scrape along the bottom of the groove - the cutters and tie straps will not ride on the bar rails. Adjusting Carburetor Your carburetor is preset at the factory. This is the optimum setting of the high speed adjusting screw under the barometric pressure and climatic conditions at the factory (300 m/1000 ft above sea level). It ensures your machine will deliver maximum power, be fuel efficient and operate reliably. Standard setting e Carefully screw both adjusting screws down onto their seats (clockwise) H = High speed adjusting screw - back off 1 full turn L = Low speed adjusting screw - ‚ back off 1 full turn If you have to readjust the carburetor from scratch, first carry out the standard setting. If you do not have a tachometer, do not set the high speed adjusting screw any leaner by turning it beyond the standard setting. Operation at high altitude (mountains) or at sea level Slight correction of the carburetor setting may be necessary. When making corrections to the high speed adjusting screw (H): Use a tachometer - do not exceed maximum permissible engine speed. Engine might otherwise be damaged by lack of lubrication or overheating. Maximum engine speed with bar and properly tensioned chain is 13,000 r.p.m. 41 FE a бе 42 Check chain tension. Check the air filter, clean if necessary. Adjust idle speed correctly (chain must not rotate). Start the engine and run until it is warm. Turn high speed adjusting screw (H) clockwise (leaner) at high altitudes or counterclockwise (richer) at sea level. Turn the screw very slowly and carefully - slight changes have a noticeable effect on the engine's running behavior. Corrections to high speed adjusting screw: The high speed adjusting screw (H) alters the power output and maximum off-load engine speed. If you make the setting too lean, the maximum permissible engine speed will be exceeded - risk of engine damage. 7 Setting idling speed It is usually necessary to change the setting of the idle speed adjusting screw (LA) after every correction to the low speed adjusting screw (L). Engine stops while idling (back off low speed screw (L) one full turn) Turn the idle speed adjusting screw (LA) clockwise until chain begins to run - then back off the screw one quarter of a turn. Chain runs when engine is idling (back off low speed screw (L) one full turn) Turn the idle speed adjusting screw (LA) counterclockwise until chain stops running - then turn another quarter turn in the same direction. Erratic idling behavior, poor acceleration (even though you have backed off lowspeed screw one turn) Idle setting is too lean.Turn the low speed adjusting screw (L) counterclockwise until engine runs and accelerates smoothly. 43 TH HEAT EE TE He. * Checking Spark Plug i, | 000BA002 LÄ If engine is down on power, difficult to start or runs poorly at idling speed, first check the spark plug. e Remove spark plug as described in chapter "Starting". e Check electrode gap (A) - it should be 0.5 mm (0.02 in) - correct if necessary. e Keep spark plug clean, and make sure ignition lead is in good condition. Rectify faults which have caused fouling of spark plug: Incorrect carburator setting, 100 much oll in fuel mix, dirty air filter, unfavorable running conditions, e.g. operating at part load. 44 Ч & р. fk jes 000BAO36 TR Fit a new spark plug after approx. 100 operating hours - or sooner if the electrodes are badly eroded. 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 terminal and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire. a Replacing Starter Rope a mi ei ” a et (] / == s \ № * ® - ® Remove four screws. ® Use screwdriver or suitable pliers e Push the hand guard upward. to carefully remove the spring clip (1) ® Pullunderside of fan housing away from the starter post. from crankcase and remove it e Now remove the rope rotor with downward. washer (2) and pawls (3). e Useascrewdriverto pry the rope out of the starter grip. Remove remaining rope from the rotor and starter grip. e Threadthe newrope-— Part No. 1122 190 2900 — through the lop of the starter grip and then pull through the rope guide bush (4). 45 Be Bs Ee Be Re iE EB Ek de Fae om БЫ a 46 Thread the rope through the rotor and secure it with a simple overhand knot. Hi A Re a Ear Er Em TR TE mmm wm yr, wm, Ww AN Coat rope rotor bearing bore with non-resinous oil. Slide rotor onto starter post — turn it back and forth so that anchor loop of rewind spring engages. Refit the pawis (5) in the rotor. Fit the washer (6) on the starter post. Use screwdriver or suitable pliers to install the spring clip (7) on starter post and over the pawl pegs — the spring clip must point in clockwise direction — see illustration. Tensioning rewind spring Make aloop inthe starter rope and use it to turn the rope rotor six full revolutions in the direction of the arrow. Hold the rotor steady — straighten the twisted rope. Release the rotor. Let go of rope slowly so that it winds onto the rotor. The starter grip must sit firmly inthe rope guide bush. If the grip droops to one side: Increase spring tension by one additional turn. When starter rope is fully extended it must be possible to rotate the rotor atleast another half turn. If this is not the possible, the spring is over- tensioned and could break. Take off one turn of the rope. Fit the fan housing on the crankcase. Set the Master Control leverto 1 о Push the remaining rope into the starter grip so that the nipple (8) is flush with the grip. Replacing a broken rewind spring Lubricate the new spring with a few drops of non-resinous oil. Remove the rope rotor— see “Replacing Starter Rope”. Remove the spring housing and parts of spring. Fit the new spring housing — bottom plate must face upward — slip outer spring loop over lug. Reinstall the rope rotor, tension the rewind spring, fit the fan housing and secure it in position. If the spring pops out of its housing during installation: refit it in the counterclockwise direction, starting outside and working inward. 47 e e EE HEE EE WE OW OT CT NER NL THN I Mee a Checking and Replacing Chain Sprocket | Y Replace the chain sprocket after using two Oilomatic chains or sooner if the wear marks on the sprocket are deeper than approx. 0.5 mm (¥4") since this would reduce the life of the chain. Check wear marks: Left: on webs of rim sprockets— Right: onteeth of spur sprockets. You can use gauge* 0000 893 4101 to check the depth of the wear marks on spur and rim sprockets. * Special accessory 48 EE It is best to use two chains in rotation with one sprocket. Before removing chain sprocket Remove chain sprocket cover, chain and guide bar. Disengage the chain brake: Pull hand guard toward front handle. Rim sprocket Use a screwdriver to remove the E-clip. Take off the washer and rim sprocket. Examine splines on clutch drum — if wear marks are severe, fitanew clutch drum: Pull clutch drum and needle cage off the crankshaft —clean the crankshaft stub and needle cage, and lubricate with STIHL grease (tube 0781 120 1111). Reassemble with new rim sprocket and new clutch drum, if necessary - fit rim sprocket with cavities facing outward - refit washer and E-clip on the crankshaft. Use only original STIHL clutch drums to ensure correct operation of the chain brake. Spur sprocket Use a screwdriver to remove the E-clip. Pull the washer, spur sprocket and needle cage off the crankshaft. Clean the crankshaft stub and needle cage, and lubricate with STIHL grease (tube 0781 120 1111). Reassemble with new spur sprocket - After fitting the clutch drum, rotate it about one turn to engage oil pump drive - refit washer and E-clip on the crankshaft. Use only original STIHL chain sprockets to ensure correct operation of the chain brake. 49 Maintaining and Sharpening Saw Chain Correctly sharpened chain A properly sharpened chain slices through wood effortlessly and requires very little feed pressure. Do not work with a dull or damaged chain as it will increase the physical effort required, produce unsatisfactory results and a higher rate of wear. Clean and check your chain for cracks in the links and damaged rivets - replace any damaged or worn parts of the chain and match the new parts to the shape and size of the original parts. 50 O | «CO eu A 5 The illustration shows 1 = drive links 2 = left-hand cutter = right-hand cutter 4 = tie straps. 5 = triple-humped tie stap. Replacing individual parts of chain Use the following tools: STIHL NG 4 chain breaker” STIHL NG 5 rivet spinner” STIHL NG 6 chain breaker and rivet spinner” Instructions for use are supplied with the tools. *Special accessory B OL © 4—— d ——» % а 2 A t=— = £ 2 : С 8 3 2 Select sharpening tools to suit Use only special saw chain files You must observe certain angles chain pitch when resharpening the chain cutters Other files have the wrong shape You can use chains with the following and cut. A = Filing angle pitches (t) on your saw: B = Side plate angle Select file diameter according to chain C = Top plate cutting angle: O t=3/8"=9.32mm pitch. e t=0.404" = 10.26 mm Chain pitch — File O Part No. Chain pitch must match chain sprocket inch (mm) inch (mm) and drive link gauge must match guide bar. 3/8" (9.32) 13/64 (5.2) 0814 243 3384 0.404" (10.26) 7/32 (5.5) 0811 4128108 Check as follows: Chain pitch t = distance from one rivet to the next rivet but one, divided by two. 51 i eR Ee Er EA NE WL CHET CHE SUE WW B lol O == N $ С Wo 0 8 = 3 Chain type Angle (°) A B C Rapid-Micro (RM) 35 85 * Rapid-Super (RS) 30 60 * * This angle is difficult to measure because the top plate cutting edge is very short. Itis obtained automatically if the filing and side plate angles are maintained as specified. Cutter shapes: Micro = Semi-chisel Super = Full chisel 52 Specified angles A, B and C are obtained automatically if recommended files or sharpening tools and correct settings are used. Furthermore, the angles must be the same on all cutters. If angles are uneven: Chain will run roughly, notin a straight line, wear quickly and finally break. a a 0 © o < Ш © © © As these requirements can be met only after sufficient and constant practice: Use a file holder. A file holder must be used for manual resharpening of Super chain. The correct filing angle is marked on the file holder. File holder Part No. Chain pitch inch (mm) 0.325 (8.25) 5605 750 4326 3/8 (9.32) 5605 750 4329 ee ne Other filing and sharpening aids for all types of chain: FG 1 filing tool” - attaches to guide bar Part No. 5603 000 7500 FG 2 Filerite* - mounts to workbench Part No. 5604 000 7501 USG electric grinder* Part No. 5203 201 0403 Operating instructions are supplied with all tools. | 85° 70° Uo a du © NINO. | о 10° 0° 689BA010 KN For checking angles STIHL filing gauge” Part No. 1110 893 4000 A universal tool for checking the filing and side plate angles, depth gauge setting and cutter length. Also cleans the guide bar groove and oil inlet hole. For lowering depth gauges Triangular file* Part No. 0811 421 8971 Flat file* Part No. 0814 252 3356 * Special accessory 53 143BA011 File correctly e !f you use the FG 2 or USG: Remove the chain from the bar and sharpen according to instructions supplied with the tool. If you use a file holder or the FG 1: Leave the chain on the bar. Lock the chain - push hand guard forward Sharpen chain frequently, take away as little metal as possible - two or three strokes of the file are usually enough e Always file from the inside to the outside of the cutter. 54 (689BA011 KN Clamp the bar in a vise if necessary. The file only sharpens on the forward stroke - lift the file off the cutter on the backstroke. Hold the file horizontally for all chain types (at right angle to side of guide bar) and file according to the angles marked on the filing tool. 6898A012 KN If you use Super chains in hardwood or frozen timber, hold file so that it slopes upward at 10° - for a longer edge life and smoother cutting action. Avoid touching the tie straps and drive links with the file. Rotate the file at regular intervals while filing - this avoids one-sided wear. Use a piece of hardwood to remove burrs from cutting edge. Check angles with the filing gauge. All cutters must be the same length If the cutters are not the same length, they will have different heights. This makes the chain run roughly and can cause it to break. Find the shortest cutter and then file alll other cutters back to the same length. This can be very time consuming - it is best to have it done in the workshop on an electric grinder. 689BA013 KN Depth gauge setting The depth gauge determines the height at which the cutter enters the wood and thus the thickness of the chip removed. Distance between depth gauge and cutting edge = a: a= 0.65 mm (0.025") on 0.325" and 3/8" chain This setting may be increased by 0.2 mm (0.008") for cutting softwood in mild weather season - no frost. 689BA014 KN Lowering depth gauges The depth gauge setting is reduced when the chain is sharpened. Use filing gauge to check the setting every time you sharpen the chain and, if necessary, lower the depth gauge with a flat or triangular file so that it is level with the filing gauge. Filing gauge for 0.325" and 3/8" pich: Part No. 1110 893 4000 Round off depth gauges parallel to the stamped marking. 55 After sharpening Clean the chain thoroughly, remove filings or grinding dust - lubricate the chain by immersing it in an oil bath. Before long out-of-service period Clean the chain with a brush and immerse it in an oil bath. Please quote the following details when ordering a new chain: Chain type, e.g. Rapid-Super, Chain pitch, e.g. 3/8" Number of drive links, e.g. 72 Bar length, e.g. 50 cm (20") 56 Storing the machine Remove the saw chain and guide bar. Drain and clean the fuel tank. Drain the carburetor, otherwise the carburetor diaphragms may stick together! Thoroughly clean the machine, particularly the cylinder fins and air filter! Always store the machine in a dry, safe place where it cannot be reached by unauthorized users (e.g. children). > E" 1 e e I WCE — Maintenance Chart Please note that the following maintenance intervals apply for normal operating conditions only. If your daily working time is longer than normal or cutting conditions <| I>| 2 are difficult (very dusty work area tropical wood etc.) shorten the specified intervals | 5855 > $ | © 5 accordingly. eS ES SS 2 E| 2| Ef g| £ = el a3 Y 5 q © Ss D 85/52/55 2| 2) E | É| 81 3 Complete machine Visual inspection (condition leaks) X X Clean X иное ¿roger trigger interlock, Check operation x y Check operation X X 30 SLIT Check by STIHL dealer X 30 Check X 28 Filter in fuel tank Clean, Replace filter element Replace pick-up body X X Fue! tank Clean X 28 Chain oil tank Clean X Chain lubrication Check X 29,35 Inspect, also check sharpness X X 50 Saw chain Check chain tension X X 26, 36 Sharpen X 50 Check (wear, damage) X 40 Clean and turn over X X Guide bar un x E Replace X X Chain sprocket Check X 48/49 Air filter Clean X X 37/38 Replace X 37/38 Cooling inlets Clean X Cylinder fins Clean X Check idle adjustment — chain must not turn X X 41-43 Carburetor Readjust idle x | 41-43 Spark plug Readjust electrode gap x 44 All accessible screws and nuts (not adjusting screws)* Retighten X a Inspect X ee Have replaced by STIHL dealer X Spark arrestor screen in muffler Inspect X Clean or replace X X Chain catcher ue Replace “ Tighten down the cylinder base screws firmly after the first 10 to 20 hours of operation pres 57 Specifications Engine STIHL single cylinder two-stroke engine 064 066 Displacement: 85,0 cm* 91,6 cm? Bore: 52 mM 54 mm Stroke: 40 mm 40 mm Power output: 4,8 kW 5,0 kW Idle speed: 2500'/min 2500'/min Maximum engine speed (cut-off speed): 13000'/min 13000'/min Ignition System Fuel/Oil System Type: Carburetor: Electronic magneto ignition (breakerless) All position diaphragm carburetor Spark plug (suppressed): with integral fuel pump Bosch WSR 6 F Air filter: or NGK BPMR 7 A Prefilter and bisectional box filter Heat range 200 Special accessory: Electrode gap 0.5 mm (0.02 in) Spark plug thread M 14 x 1.25, 9.5 mm (0.37 in) long 58 Heavy-duty (HD) air filter Fuel tank capacity: 0.84 | (1.77 US pt) Fuel mix: see chapter "Fuel" Chain lubrication: Fully automatic oil Oil tank capacity: 0.35 | (0.74 US pt) Weight pump without bar and chain 064: 066; 7.1kg (15.7 Ib) 7.3 kg (16.1 1b) Cutting Attachment Recommended cutting attachments for compliance with § 4.12 of ANSI Standard B 175.1-1985 (see page 12 of this Manual): STIHL reduced kickback bar (with green label): for 3/8" pitch: Rollomatic with sprocket nose 40, 45 or 50 cm (16, 18 or 20 in) STIHL low kickback chain* (with green label): 9.32 mm (3/8") Rapid-Micro 2 (33 ВМ 2, 36 ВМ 2) Chain sprocket: 8-tooth 3/8" pitch rim sprocket Since new bar/chain combinations may be developed after publication of this Manual, ask your STIHL dealer for the latest STIHL recommendations. Other bars and chains available for this powerhead are: STIHL yellow-labeled bars: for 3/8" pitch: Rollomatic "S" with sprocket nose 40, 45, 50, 63, 70, 75, 80 or 90 cm (16, 18, 20, 24, 28, 30, 32 or 36 in) for 0.404" pitch: Rollomatic "S" with sprocket nose 50, 70, 80, 90 or 105 cm (20, 28, 32, 36 or 42 in) Duromatic with stellite tipped nose 40, 45, 50 or 60 cm (16, 18, 20 or 24 in) STIHL yellow-labeled chains: for 3/8" pitch: Rapid Micro (33 RM, 36 RM, 33 RMF), Rapid-Super (33 RS, 36 RS, 33 RSL, 36 RSL, 33 RSF, 33 RSLF, 36 RSLF, 33 RSLH, 36 RSLH), Rapid-Duro (33 RD, 36 RD) for 0.404" pitch: Rapid-Micro (46 RM, 46 RMF), Rapid-Super (46 RS, 46 RSF, 46 RSL, 46 RSLF, 46 RSLH), Rapid-Standard (46 RCX) * See definition of “low kickback chain” on page 12. Ordering Spare Parts Please enter your saw model, machine number as well as the part numbers of the guide bar, saw chain and chain sprocket in the spaces provided. This will make re-ordering simpler. The guide bar, saw chain and chain sprocket are subject to normal wear and tear. The part numbers of the standard bar, chain and sprocket are printed for your convenience. When purchasing these parts, always quote the saw model, the part numbers and names of the parts. Model LU LL TITI Machine number LU TT TT TETE Guide bar part number ТЕТ | Chain part number LITT TTT ITT] Sprocket part number TTT TT TTT For recommended STIHL reduced kickback cutting attachments see section "Specifications" of this Owner’s Manual. Warranty claims following repairs can be accepted only if the repair has been performed by an authorized STIHL servicing dealer using original STIHL spare parts. Original STIHL parts can be identified by the STIHL part number, the logo STINL and the STIHL parts symbol &7, The symbol may appear alone on small parts. 59 . Do not allow other persons to be near the chainsaw when starting or cutting with the chainsaw. Keep bystanders and animals out of the work area. . Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree. . Keep all parts of your body away from the saw chain when the engine is running. . Before you start the engine, make sure that the saw chain is not contacting anything. . Carry the chainsaw with the engine stopped, the guide bar and saw chain to the rear, and the muffler away from your body. . Do not operate a chainsaw that is damaged, improperly adjusted, or not completely and securely assembled. Be sure that the saw chain stops moving when the throttle trigger is released. Continuation of Important Safety Precautions 10.Shut off the engine before setting the chainsaw down. 11.Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance. 12.When cutting a limb that is under tension be alert for spring- back so that you will not be struck when the tension in the wood fibers is released. 13.Keep the handles dry, clean, and free of oil or fuel mixture. 14.Operate the chainsaw only in well-ventilated areas. 15.Do not operate a chainsaw in a tree unless you have been specifically trained to do so. 16.All chainsaw service, other than the items listed in the Owner's Manual maintenance instructions, should be performed by competent chainsaw service personnel. (For example, if improper tools are used to remove the flywheel or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur and could be sub- sequently cause the flywheel to burst). 17.When transporting your chainsaw, use the appropriate chain guard (scabbard). 18.Recuced kickback bars and low kickback chains are designed to reduce the risk of kickback injury. Ask your STIHL dealer about these devices. Note: When using a chainsaw for logging purposes, refer to the Code of Federal Regulations, Parts 1910 and 1928. rw

Stihl 064 Chainsaw Instruction Manual

Key Features

Related manuals

Frequently Answers and Questions

What is the intended use of the STIHL 064 chainsaw?

What safety features are included on the STIHL 064 chainsaw?

How do I tension the saw chain on the STIHL 064 chainsaw?

What type of fuel should I use in the STIHL 064 chainsaw?

How do I clean the air filter on the STIHL 064 chainsaw?

Stihl 064 Chainsaw Instruction Manual

Key Features

Related manuals

STIHL

MS 193

STIHL

MS 241 C-M

STIHL

019 T

STIHL

017

STIHL

044

STIHL

046

STIHL

021

STIHL

066

STIHL

064

STIHL

009

STIHL

MS 660 Magnum

Frequently Answers and Questions

What is the intended use of the STIHL 064 chainsaw?

What safety features are included on the STIHL 064 chainsaw?

How do I tension the saw chain on the STIHL 064 chainsaw?

What type of fuel should I use in the STIHL 064 chainsaw?

How do I clean the air filter on the STIHL 064 chainsaw?