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Instruction Manual — improper use can cause. Need help? Post your question in this forum. Read and follow all safety precautions in Instruction Manual — improper use can cause serious or fatal injury. As a chainsaw user, you should take several steps to keep your cutting jobs free from accident or injury. 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. 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. With a basic understanding of kickback, you can reduce or eliminate the element of surprise.
Sudden surprise contributes to accidents. 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. Make sure the 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 that could be hit while you are operating the saw. Cut at high engine speeds. Do not overreach or cut above shoulder height. Follow manufacturer's sharpening and maintenance instructions for the saw chain. Only use replacement bars and chains specified by the manufacturer or the equivalent. Reduced kickback bars and low kickback chains are designed to reduce the risk of kickback injury.
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 to be used with two hands. Do not operate a chainsaw when you are fatigued.
Use safety footwear; snug-fitting clothing; protective gloves; and eye, hearing, and head protection devices. Pay special attention to the safety precautions outlined on pages 4 to 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. Careless or improper use may cause serious or even fatal injury.
As a result, engineering changes and improvements are made from time-to-time. If the operating characteristics or the appearance of your saw differs from those described in this Manual, please contact your STIHL dealer for information and assistance. KG, The saw chain has many sharp cutters. If the cutters contact your flesh, they will cut you, even if the chain is not moving.
It is important that you read, fully understand and observe the following safety precautions and warnings. Pay special attention to the section on reactive forces. Careless or improper use of any chainsaw may cause serious or fatal injury. All safety precautions that are generally observed when working with an ax 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.
Observe all applicable local safety regulations, standards and ordinances. Bystanders, especially 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.
Be sure that anyone using your saw reads and understands the information contained in this manual. Different models may have different parts and controls. Safe use of a chainsaw involves 1. 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. All factors which contribute to whitefinger disease are not known, but cold weather, smoking and diseases or physical conditions that affect blood vessels and blood transport, as well as high vibration levels and long periods of exposure to vibration are mentioned as factors in the development of whitefinger disease.
In order to reduce the risk of whitefinger disease and carpal tunnel syndrome, please note the following: The STIHL is not equipped with an antivibration AV system. An AV system is recommended for those persons using chainsaws on a regular or sustained basis. Wear gloves and keep your hands warm. A dull chain will increase cutting time, and pressing a dull chain through wood will increase the vibrations transmitted to your hands.
A saw with loose components or with damaged or worn AV buffers will also tend to have higher vibration levels. Take frequent breaks. All the above mentioned precautions do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome. Therefore, continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately.
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.
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. During operation, the powerhead muffler and the material around it reach extremely high temperatures. Avoid touching the hot muffler, you could receive serious burns.
Although certain unauthorized attachments are useable with the STIHL powerhead, their use may, in fact, be extremely dangerous. Carrying a chainsaw with the engine running is extremely dangerous.
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. Properly secure your saw to prevent turnover, fuel spillage and damage to the saw. Take off the chain guard and inspect for safety in operation. 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! 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 or the chainsaw. Note that combustible fuel vapors may be vented from the fuel system. 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 fuel filler 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. 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.
Different models may have different fuel caps. In order to reduce the risk of fuel spillage and fire, tighten fuel filler cap by hand with as much force as possible.
The screwdriver end of the STIHL combination wrench or other similar tool can be used as an aid in tightening slotted fuel filler caps. Insert the cap and the fuel tank opening with the triangular marks on the grip of the cap and on the fuel tank opening lining up. Using the grip, turn the cap firmly clockwise as far as it will go approx. Fold the grip flush with the top of the cap. If the grip does not lie completely flush with the cap and the detent on the grip does not fit in the corresponding recess in the filler neck, the cap is not properly seated and tightened and you must repeat the above steps.
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. Do not allow other persons to be near the running chainsaw. Start and operate your saw without assistance. 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. Maintain good balance and secure footing. Make sure the chain brake is engaged, grip the front handle of the chainsaw firmly with your left hand. Keep your 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. Pull the starting grip slowly with your right hand until you feel a definite resistance and then give it a brisk, strong pull.
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.
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. At correct idle speed, the chain should not rotate. 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. These gases e. 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 ventilation when working in trenches or other confined areas.
If you are unfamiliar with the risks associated with the particular dust, mist or fume at issue, consult your employer, governmental agencies such as OSHA and NIOSH and other sources on hazardous materials. California and some other authorities, for instance, have published lists of substances known to cause cancer, reproductive toxicity, etc. Control dust such as sawdust , mists such as oil mist from chain lubrication and fumes at the source where possible.
Do not cut or disturb asbestos, asbestos containing products e. If you have any reason to believe that you might be cutting asbestos, immediately contact your employer or a local OSHA representative.
The muffler and other parts of the engine e. To reduce risk of burns do not touch the muffler and other parts while they are hot. 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. 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.
Put off the work when the weather is windy, stormy or rainfall is heavy. Clear the area where you are working. Be extremely cautious when working on slopes or uneven ground. There is increased danger of slipping on freshly debarked logs. You cannot control reactive forces and you may lose control of the saw, which can result in the skating 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 with the starting throttle lock engaged does not permit the operator proper control of the saw or chain speed. Remove and clean or Carburetor floods — Foreign matter in valve seat replace inlet needle engine stalls or cone damaged Helical spring not located on Remove inlet control lever and Page 46 STIHL , , Remedy Fault Cause Clean jet bores and blow Engine stalls at idle speed Idle jet bores or ports clogged out with compressed air Turn low-speed adjustment screw Idle jet too "rich" slightly clockwise see Carburetor Adjustment Set idle speed screw correctly Idle speed screw incorrectly set — Page Repair Of Carburetor STIHL , , Repair of Carburetor Top: Removing fuel pump end cover Bottom: Taking out the fuel strainer Removing metering chamber cover Removing inlet needle be lifted out with a screwdriver and recess in the metering diaphragm washed in clean gasoline.
Always chamber. Refit the fuel strainer, pump dia- phragm, gasket and fuel pump end cover and screw down firmly. Page Fuel Line STIHL , , Fuel Line Tank Vent Withdrawing the pickup body Removing the felt bar Tank vent in position Trouble-free operation of the The diaphragm pump draws fuel out The tank vent consists of a tube and a carburetor depends on the fuel tank of the fuel tank and into the carburetor grub screw.
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