,PSRUWDQW 6DIHW\ 3UHFDXWLRQV IRU &KDLQ 6DZ 8VHUV
$ .LFNEDFN 6DIHW\ 3UHFDXWLRQV
:DUQLQJ
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 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 while you are operating the saw.
4.Cut at high engine speeds.
5.Do not overreach or cut above shoulder height.
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.
8.Reduced kickback bars and low kickback chains are designed to reduce the risk of kickback injury. Ask your STIHL dealer about these devices.
% 2WKHU 6DIHW\ 3UHFDXWLRQV
1.Do QRW operate a chainsaw with one hand! Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from onehanded operation. A chainsaw is intended to be used with two hands.
2.Do not operate a chainsaw when you are fatigued.
3.Use safety footwear; snug-fitting clothing; protective gloves; and eye, hearing, and head protection devices.
Continuation of Important Safety Precautions
4.Use caution when handling fuel. Move the chainsaw at least
10 feet (3 m) from the fueling point before starting the engine.
5.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.
6.Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree.
7.Keep all parts of your body away from the saw chain when the engine is running.
8.Before you start the engine, make sure that the saw chain is not contacting anything.
9.Carry the chainsaw with the engine stopped, the guide bar and saw chain to the rear, and the muffler away from your body.
10.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.
11.Shut off the engine before setting the chainsaw down.
12.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.
13.When cutting a limb that is under tension be alert for springback so that you will not be struck when the tension in the wood fibers is released.
14.Keep the handles dry, clean, and free of oil or fuel mixture.
15.Operate the chainsaw only in well-ventilated areas.
16.Do not operate a chainsaw in a tree unless you have been specifically trained to do so.
17.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 subsequently cause the flywheel to burst).
18.When transporting your chainsaw, use the appropriate chain guard (scabbard).
Other important safety precautions are contained in the body of the Owner’s Manual.
1RWH
When using a chainsaw for logging purposes, refer to the Code of Federal Regulations, Parts 1910 and 1928.
67,+/ 46
2
1
3
148BA000 KN
Your STIHL 036 QS is equipped with an additional chain braking system activated by removing the hand from the rear handle. As before, the chain brake can be activated manually by pushing the front hand guard toward the bar nose or by inertia in certain kickback situations. In addition, the new system, which utilizes a different braking mechanism, is designed to stop chain rotation within a second of you letting go of the rear handle. The locked chain is not released until you press down the throttle trigger interlock lever again to operate the throttle.
The QS braking system may be activated in three ways:
1By inertia in certain kickback situations
2Manually via the front hand guard
3Manually via the rear handle (new function)
The activating mechanism for function 3 is integrated in the throttle trigger interlock lever (rear handle). One of the big advantages of this system is that the saw chain is locked when carrying the running saw by the front handle (with the rear handle released).
:DUQLQJ
Due to the way it functions, the QS braking system may cause the saw to react in an unaccustomed manner. To avoid personal injury during cutting, observe the characteristics that make the STIHL 036 QS different from saws that do not have such a braking system. Before operating the STIHL 036 QS for the first time, make sure you are familiar with how the QS system works. Pay special attention to the chapters "Chain Brake" and "Starting" in this manual.
|
46 |
&RQWHQWV
Main Parts of Saw |
4 |
Air Filter System |
36 |
This Manual contains operating and |
Definitions |
5 |
Winter Operation |
37 |
safety instructions for all STIHL 036 QS |
Safety Precautions |
6 |
Taking Care of Guide Bar |
38 |
series power saws. |
- The Operator |
6 |
Adjusting Carburetor |
39 |
Pay special attention to the safety |
- The Saw |
7 |
Motor Management |
39 |
precautions outlined on the inside cover |
- The Use of the Saw |
7 |
Spark Arresting Screen in Muffler |
40 |
and on pages 6 to 24. |
- Maintenance, Repair and Storing |
23 |
Checking Spark Plug |
40 |
Allow only persons who understand this |
Mounting the Bar and Chain |
25 |
Replacing Starter Rope |
|
Manual to operate your chain saw. |
Tensioning the Saw Chain |
26 |
and Rewind Spring |
41 |
To receive maximum performance and |
Checking Chain Tension |
26 |
Checking and Replacing |
|
satisfaction from your STIHL chainsaw, |
Fuel Mix |
26 |
Chain Sprocket |
44 |
it is important that you read and under- |
Fueling |
27 |
Storing the Machine |
44 |
stand the maintenance and safety |
Chain Lubricant |
28 |
Maintaining and Sharpening |
|
precautions before using your saw. |
Filling Chain Oil Tank |
28 |
Saw Chain |
45 |
Contact your STIHL dealer or the |
Chain Brake |
29 |
Maintenance Chart |
48 |
STIHL distributor for your area if you do |
Information Before You Start |
30 |
Specifications |
49 |
not understand any of the instructions in |
Starting |
31 |
Ordering Spare Parts |
50 |
this Manual. |
Checking Chain Lubrication |
34 |
STIHL Incorporated Federal |
|
|
Oil Quantity Control |
35 |
Emission Control Warranty |
|
:DUQLQJ |
During Break-in Period |
35 |
Statement |
51 |
Because a chainsaw is a high-speed |
During Operation |
35 |
|
|
wood-cutting tool, some special safety |
After Finishing Work |
36 |
|
|
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 continually |
|
|
|
|
improve all of its products. 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, |
Printed on chlorine-free paper |
|
|
|
please contact your STIHL dealer for |
|
|
|
|
information and assistance. |
2000 Andreas Stihl AG & Co., Waiblingen
0458 148 3021. M0,5. F0. PM. Printed in USA
46 |
|
0DLQ 3DUWV RI 6DZ |
|
|
|
|
|
2 |
|
|
|
1 |
|
|
|
|
|
|
5 |
8 |
|
|
4 |
7 |
9 |
|
|
|
|
||
|
|
|
|
|
|
3 |
|
10 |
KN |
|
|
|
||
|
|
6 |
|
148BA005 |
|
|
|
|
|
|
14 |
|
|
|
13 |
|
|
|
|
|
22 |
|
|
|
|
15 |
|
|
|
12 |
|
16 |
19 |
|
|
|
|
|
|
11 |
|
18 |
20 |
KN |
|
|
21 |
||
|
17 |
148BA001 |
||
|
|
|||
|
|
|
|
|
|
|
|
|
|
1Carburetor box cover twist lock
2Spark plug boot
3Chain sprocket cover
4Chain sprocket
5Chain brake
6Chain catcher
7Chain tensioner
8Bumper Spike
9Guide bar
10Oilomatic saw chain
11Oil filler cap
12Muffler
13Front hand guard
14Front handle (handlebar)
15Starter grip
16Master Control lever
17Fuel filler cap
18Throttle trigger
19Interlock lever and chain brake activator
20Rear handle
21Rear hand guard
22Decompression valve
46
'HILQLWLRQV
&DUEXUHWRU %R[ &RYHU 7ZLVW /RFN
Lock for carburetor box cover.
6SDUN 3OXJ %RRW
Connects the spark plug with the ignition wire.
&KDLQ 6SURFNHW &RYHU
Covers the clutch and the sprocket.
&KDLQ 6SURFNHW
The toothed wheel that drives the saw chain.
&KDLQ %UDNH
A device to stop the rotation of the chain. May be activated in certain kickback situations by hand contact with the front hand guard or by inertia. On model "036 QS", may also be activated by releasing the throttle trigger interlock.
&KDLQ &DWFKHU
Helps to reduce the risk of operator contact by a chain when it breaks or comes off the bar.
&KDLQ 7HQVLRQHU
Permits precise adjustment of chain tension.
%XPSHU 6SLNH
Toothed stop for holding saw steady against wood.
*XLGH %DU
Supports and guides the saw chain.
2LORPDWLF 6DZ &KDLQ
A loop consisting of cutters, tie straps and drive links.
2LO )LOOHU &DS
For closing the oil tank.
0XIIOHU
Reduces engine exhaust noise
and diverts the exhaust gases away from the operator.
)URQW +DQG *XDUG
Provides protection against projecting branches and helps prevent left hand from touching the chain if it slips off the handle bar.
)URQW +DQGOH
Handle bar for the left hand at front of saw.
6WDUWHU *ULS
The grip of the starter, for starting the engine.
0DVWHU &RQWURO /HYHU
Lever for choke control, starting throttle, run and stop switch position.
)XHO )LOOHU &DS
For closing the fuel tank.
7KURWWOH 7ULJJHU
Controls the speed of the engine.
,QWHUORFN /HYHU DQG &KDLQ %UDNH $FWLYDWRU
Must be depressed before throttle trigger can be engaged; on "036 QS", designed to activate Quickstop chain brake when released. See definition of "Chain Brake" for other methods of activation.
5HDU +DQGOH
The support handle for the right hand, located at or toward the rear of the saw.
5HDU +DQG *XDUG
Gives added protection to operator’s right hand.
'HFRPSUHVVLRQ 9DOYH
Makes starting easier
*XLGH %DU 1RVH
The exposed end of the guide bar. (not illustrated, see chapter “Tensioning the Saw Chain”.
&OXWFK
Couples engine to chain sprocket when engine is accelerated beyond idle speed (not illustrated).
$QWL 9LEUDWLRQ 6\VWHP
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.
46 |
|
6DIHW\ 3UHFDXWLRQV
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 DQG the safety instructions periodically.
Pay special attention to the section on reactive forces.
:DUQLQJ
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 STlHL dealer show you how to operate your chainsaw. Observe all applicable local safety regulations, standards and ordinances.
:DUQLQJ
Minors should never be allowed to use a chainsaw. 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.
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.
7+( 23(5$725
3K\VLFDO &RQGLWLRQ
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.
:DUQLQJ
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 burning sensations and may cause nerve and circulation damage and tissue necrosis.
All factors which contribute to whitefinger disease are not known, but cold weather, smoking and diseases or physical conditions that affect blood vessels and blood transport, as well as high vibration levels and long periods of exposure to vibration are mentioned as factors in the development of whitefinger disease. In order to reduce the risk of whitefinger disease and carpal tunnel syndrome, please note the following:
-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 AV system is recommended for those persons using chain saws on a regular or sustained basis.
-Wear gloves and keep your hands warm. Heated handles, which are available on most STIHL powerheads, are recommended for cold weather use.
-Keep the saw chain sharp and the saw, including the AV system, well maintained. 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.
-Maintain a firm grip at all times, but do not squeeze the handles with constant, excessive pressures, 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.
3URSHU &ORWKLQJ
Clothing must be sturdy and snug-fitting, but allow complete freedom of
movement. Avoid loose-fitting jackets, scarfs, neckties, jewelry, flared or cuffed pants, 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. Heavy-duty, 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 ANSI Z 87.1.
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.
7+( 6$:
Parts of the chainsaw; for illustrations and definitions of the parts see the chapter on "Main Parts of Saw".
:DUQLQJ
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.
7+( 86( 2) 7+( 6$:
7UDQVSRUWLQJ WKH FKDLQVDZ
:DUQLQJ
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.
%\ KDQG When carrying your saw by hand, the engine must be stopped and the saw must be in the proper position.
001BA027 LÄ
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. When removing the scabbard be careful not to contact the chain.
%\ YHKLFOH 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.
3UHSDUDWLRQ IRU WKH XVH RI WKH VDZ
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.
:DUQLQJ
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 !
)XHOLQJ
Your STIHL chainsaw uses an oil-gaso- line mixture for fuel (see chapter "Fuel" of your owner’s manual).
:DUQLQJ
Gasoline is an extremely flammable fuel. If spilled and ignited by a spark or other ignition source, it can cause fire and serious burn injury or property damage. Use extreme caution when handling gasoline or fuel mix.
Do not smoke or bring any fire or flame near the fuel or the chainsaw. Note that combustible fuel vapors may be vented from the fuel system..
)XHOLQJ ,QVWUXFWLRQV
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 gastank 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.
:DUQLQJ
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 screwdriver end of the STIHL combination wrench or other similar
tool can be used as an aid in tightening slotted fuel caps.
6WDUWLQJ
:DUQLQJ
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.
001BA028 LÄ
With the ILUVW PHWKRG 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.
143BA019 KN
The VHFRQG recommended PHWKRG 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. On "QS" models, be careful not to disengage the chain brake by depressing the interlock lever with your leg. 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.
:DUQLQJ
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 chainbrake 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). Never attempt to start the chainsaw when the guide bar is in a cut or kerf.
:DUQLQJ
On "QS" models, as soon as you press down the interlock lever, the chain brake is disengaged and allows the chain to run at high speed until you blip the throttle trigger and release the interlock lever again.
:DUQLQJ
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.
,PSRUWDQW DGMXVWPHQWV
:DUQLQJ
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.
:RUNLQJ &RQGLWLRQV
Operate the chainsaw under good visibility and daylight conditions only.
:DUQLQJ
Your chainsaw produces poisonous exhaust fumes as soon as the combusti-
ble engine is running. These gases (e.g. carbon
monoxide) may be colorless and odorless.
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.
Even an oil mist (from chain lubrication) and sawdust are health hazards.
The muffler and other parts of the engine (e.g. fins of the cylinder, spark plug) become hot during operation and remain hot for a while after stopping the engine. To reduce risk of burns do not touch the muffler and other parts while they are hot. Operate the saw under good visibility and daylight conditions only. Don’t 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.
:DUQLQJ
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.
:DUQLQJ
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.
:DUQLQJ
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.
001BA087 LÄ
&XWWLQJ ,QVWUXFWLRQV
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.
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.
:DUQLQJ
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.
001BA032LÄ |
:DUQLQJ
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.
:DUQLQJ
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.
001BA031 LÄ
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, or on any other insecure support. Never use the saw above shoulder height.
Never work in a tree unless you have received specific, professional training for such work, are properly secured (such as tackle and harness system or a lift bucket), have both hands free for operating the chainsaw in a cramped environment and have taken proper precautions to avoid injury from falling limbs or branches.
001BA082 KN
Position the chainsaw 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 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.
5HDFWLYH IRUFHV LQFOXGLQJ NLFNEDFN
:DUQLQJ
Reactives forces may occur any time the chain is rotating.
Reactives forces can be dangerous! In any chainsaw, 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
001BA093 LÄ
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,
–pull-in.
.LFNEDFN
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 chainsaw 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.
001BA035 LÄ
Kickback may occur when the nose of the guide bar is pinched unexpectedly, unintentionally 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.
$16, % FKDLQVDZ NLFN EDFN VWDQGDUG
Section 5.12 of ANSI standard B 175.1– 1991, sets certain performance and design criteria related to chainsaw 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 chainsaws fitted with bow guides.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.
:DUQLQJ
The computer derived angles of § 5.12 of ANSI B 175.1-1991 may bear no relationship 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° .
:DUQLQJ
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’’1).
:DUQLQJ
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 Requirements for Gasoline-Powered ChainSaws) when tested on a selected representative sample of chainsaws below 3.8 cubic inch displacement specified in ANSI B 175.1-1991.
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.
67,+/ UHFRPPHQGV WKH XVH RI LWV JUHHQ ODEHOHG UHGXFHG NLFNEDFN EDUV JUHHQ ODEHOHG ORZ NLFNEDFN FKDLQV DQG D 67,+/ 4XLFNVWRS FKDLQ EUDNH IRU ERWK H[SHULHQFHG DQG LQH[SH ULHQFHG FKDLQVDZ XVHUV
Please ask your STlHL 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.
:DUQLQJ
Use of other, non-listed bar/chain combinations may increase kickback forces and increase the risk of kickback injury. New bar/chain combina-tions may be developed after publication of this literature, which will, in combina-tion with certain powerheads, comply with § 5.12 of ANSI B 175.1-1991.
Check with your STI HL dealer for such combinations.
:DUQLQJ
Do not mount a bow guide on any STIHL chain saw.
Any chainsaw equipped with a bow guide is potentially very dangerous. The risk of kickback is increased with a bow guide because of the increased kickback contact area. Low kickback
chain will not significantly reduce the risk of kickback injury when used on a bow guide.
001BA036 LA
'HYLFHV IRU UHGXFLQJ WKH ULVN RI NLFNEDFN LQMXU\
STIHL recommends the use of the STIHL Quickstop chain brake on your powerhead with green labeled reduced kickback bars and low kickback chains.
:DUQLQJ
To reduce the risc of enjury, stop using the saw immediately if the chain brake does not function properly.
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")
4XLFNVWRS FKDLQ EUDNH
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. When a kickback occurs, the guidebar may rotate around the front handle.
If the cutting position is such that the operator’s left hand ist gripping the front handle behind the hand guard, and if the left hand rotates around the front handle and pushes forward 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. On QS" models, the interlock lever and the throttle trigger on the rear handle act as a third means of activation. See the chapter entitled chain brake" of your owners manual.
See the chapter entitled "Chain Brake" of your Owner’s Manual.
:DUQLQJ
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.
:DUQLQJ
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, Repair and 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.
:DUQLQJ
An improperly maintained chain brake may increase the time needed to stop the chain after activation, or may not activate at all.
:DUQLQJ
Never run the chain saw above idle speed for more than 3 seconds when the chain brake is engaged or the chain is pinched or otherwise caught in the cut. Clutch slippage can cause excessive heat, leading to severe damage of the motor housing, clutch and oiler component and may interfere with the operation of the chain brake. If clutch slippage in excess of 3 seconds has occured, allow the motor housing to cool before proceeding and check the operation of your chain brake as described in the chapter