,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.
&RQWHQWV 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 Chain Lubricant Fill Chain Oil Tank Chain Brake - Locking saw chain - Releasing chain brake - Checking operation - Chain brake maintenance Information Before You Start Starting the Saw Checking Chain Lubrication Oil Quantity Control During Break-in Period During Operation After Finishing Work Air Filter
0DLQ 3DUWV RI 6DZ 2 1 6 5 9 8 11 7 15 16 17 13 21 19 Oil filler cap Muffler Front hand guard Front handle (handlebar) Decompression valve Starter grip Fuel filler cap Master control lever Throttle trigger Throttle trigger interlock Rear handle Rear hand guard 18 23 145BA026 K 22 20 12 12 = 13 = 14 = 15 = 16 = 17 = 18 = 19 = 20 = 21 = 22 = 23 = 10 4 14 Carburetor box cover twist lock Spark plug boot Handle heating switch Chain sprocket cover Chain sprocket Chain brake Chain catcher Chain t
'HILQLWLRQV &DUEXUHWRU %R[ &RYHU 7ZLVW /RFN Lock for carburetor box cover. 2LORPDWLF 6DZ &KDLQ A loop consisting of cutters, tie straps and drive links. 7KURWWOH 7ULJJHU ,QWHUORFN Must be depressed before the throttle trigger can be activated. 6SDUN 3OXJ %RRW Connects the spark plug with the ignition wire. 2LO )LOOHU &DS For closing the oil tank.
DIHW\ 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.
reduce the hand’s ability to feel and regulate temperature, produce numbness and burning sensations and may cause nerve and circulation damage and tissue necrosis. All factors which contribute to whitefinger disease are not known, but cold weather, smoking and diseases or physical conditions that affect blood vessels and blood transport, as well as high vibration levels and long periods of exposure to vibration are mentioned as factors in the development of whitefinger disease.
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+( 86( 2) 7+( 6$: 7+( 6$: 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.
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 Unit vibrations can cause an improperly tightened fuel filler cap to loosen or come off and spill quantities of fuel. In order to reduce the risk of fuel spillage and fire, tighten fuel filler cap by hand with as much force as possible. :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.
: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).
eliminated, the operator and any bystanders should always wear a respirator approved by NIOSH / MSHA for the type substance at issue. :DUQLQJ Breathing asbestos dust is dangerous and can cause severe or fatal injury, respiratory illness or cancer. The use and disposal of asbestos containing products have been strictly regulated by OSHA and the Environmental Protection Agency. Do not cut or disturb asbestos, asbestos containing products (e.g.
001BA018 LA 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. :DUQLQJ Wrap your fingers tightly around the handles, keeping the handles cradled between your thumb and forefinger.
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 forces may occur instantly. These reactive forces may result in loss of control which may, in turn, cause serious or fatal injury.
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.
:DUQLQJ 'HYLFHV IRU UHGXFLQJ WKH ULVN RI NLFNEDFN LQMXU\ Never operate your chainsaw 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. STIHL recommends the use of the STIHL Quickstop chain brake on your powerhead with green labeled reduced kickback bars and low kickback chains.
: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 chainsaw 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.
/RZ NLFNEDFN FKDLQ 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. “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.
&XWWLQJ 7HFKQLTXHV )HOOLQJ 001BA038 LÄ 001BA037 LÄ Felling is cutting down a tree. Before felling a tree, consider carefully all conditions which may affect the direction of fall, including: $ 3XOO LQ % 3XVKEDFN The intended direction of the fall. Pull-in occurs when the chain on the bottom of the bar is suddenly stopped 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.
1/ 2 1 21/2 001BA088 LÄ 1 )HOOLQJ ,QVWUXFWLRQV 001BA041 LÄ 001BA040 LÄ When felling, maintain a distance of at least 21/2 tree lengths from the nearest person. When felling in the vicinity of roads, railways and power lines, etc., take extra precautions. Inform the police, utility company or railway authority before beginning to cut. (VFDSH SDWK %XWWUHVV URRWV :DUQLQJ The noise of your engine may drown any warning call.
001BA042 LÄ 001BA019 KN *XQQLQJ VLJKW &RQYHQWLRQDO FXW 2SHQ IDFH WHFKQLTXH When making the felling notch, use the gunning sight on the shroud and housing to check the required direction of fall: $ $ = felling notch - determines the direction of the fall • For a conventional cut: For an open-face cut: • • Position the saw so that the gunning sight points exactly in the direction you want the tree to fall.
• • • 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. % )HOOLQJ FXW Conventional and open-face technique: Begin 1 to 2 inches higher than center of felling notch Cut horizontalIy towards the felling notch Leave approx.1/10 of diameter uncut.
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. )HOOLQJ FXW IRU VPDOO GLDPHWHU WUHHV VLPSOH IDQ FXW Engage the bumper spikes of the chainsaw directly behind the location of the intended hinge and pivot the saw around this point only as far as the hinge.
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.
0$,17(1$1&( 5(3$,5 $1' 6725,1* 2. Cut only one log at a time. 3. Shattered wood should be cut very carefully. Sharp slivers of wood may be caught and flung in the direction of the operator of the saw. 4. When cutting small logs, place log through “V” - shaped supports on top of a sawhorse. Never permit another person to hold the log. Never hold the log with your leg or foot.
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. :DUQLQJ 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. :DUQLQJ To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL.
143BA003 KN 0RXQWLQJ WKH %DU DQG &KDLQ 3 6 1 4 4 143BA004 5 2 You can run chains of different pitches on this chainsaw - depending on the chain sprocket (see "Specifications") The chain pitch must match the guide bar. The drive link gauge must match the guide bar groove width. • • Unscrew nuts and take off cover • • Wear work gloves to protect hands Fit the chain - start at the bar nose. Disengage the chaine brake: Pull hand guard toward the front handle.
Retensioning during cutting work: • 145BA003 K 7 Now turn tensioning screw 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. • • Refit the sprocket cover and screw on the nuts only finger-tight. • • Shut down the engine and then slacken the nuts. Hold the bar nose up Use screwdriver to turn the tensioning screw clockwise until chain fits snugly against the underside of the bar.
)XHO 0L[ Your two-stroke engine requires a mixture of brand-name gasoline and quality two-stroke engine oil with the FODVVLILFDWLRQ 7& Use regular branded unleaded gasoline with a minimum octane rating 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 rating may result in preignition (causing “pinging”) which is accompanied by an increase in engine temperature.
&KDLQ OXEULFDQW )LOO &KDLQ 2LO 7DQN For automatic and reliable lubrication of the chain and guide bar: 8VH RQO\ D TXDOLW\ HQYLURQPHQWDOO\ FRPSDWLEOH FKDLQ DQG EDU OXEULFDQW 67,+/ FKDLQ OXEULFDQW ZLWK QRQ IOLQJ DGGLWLYH RU WKH UDSLGO\ ELRGHJUDGDEOH 67,+/ %LRSOXV LV UHFRPPHQGHG 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.
&KDLQ %UDNH 7KH FKDLQ EUDNH LV DOVR DFWLYDWHG E\ WKH LQHUWLD RI WKH IURQW KDQG JXDUG 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. 143BA011 KN 143BA012 KN &KHFN RSHUDWLRQ RI FKDLQ EUDNH /RFNLQJ FKDLQ ZLWK FKDLQ EUDNH - in an emergency - when starting - at idling speed.
7KH IRXU SRVLWLRQV RI WKH 0DVWHU &RQWURO OHYHU To start the engine, move the lever to "Cold Start" position do not use force. If the Master Control lever is on "Run" : Press down the throttle trigger interlock - and move the Master Control lever downward. "Cold Start" position: Choke shutter is closed - throttle trigger is in startingthrottle position. A cold engine should be started in this position.
6WDUWLQJ WKH 6DZ STOP 0 1 2QO\ PDFKLQHV ZLWK GHFRPSUHVVLRQ YDOYH • 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. • For this reason the button should be pressed in before each starting attempt. $OO YHUVLRQV • • • Observe safety precautions see section "Safety Precautions".
STOP 0 5 • • 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.
3 2 • • • • Pull the hand guard back toward the front handle: The chain brake is now disengaged your saw is ready for operation. Observe safety precautions. Always check operation of chain lubrication before starting work. 6KXW GRZQ HQJLQH Move Master Control lever to "Stop" E 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).
&KHFNLQJ &KDLQ /XEULFDWLRQ • • • Set the Master Control lever to E 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" Q even if engine is cold Press the button of the decompression valve Now start the engine.
'XULQJ %UHDN LQ 3HULRG 'XULQJ 2SHUDWLRQ $IWHU )LQLVKLQJ :RUN 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. Check chain tension frequently. A new chain has to be retensioned more often than one that has been in use for some time. 6ODFNHQ RII WKH FKDLQ if you have retensioned it at operating temperature during cutting work. The chain contracts as it cools down.
$LU )LOWHU 6\VWHP 3 2 1 Dirty air filters reduce engine power, increase fuel consumption and make starting more difficult. 4 Different air filters may be installed to adapt the machine to the prevailing operating conditions: )OHHFH ILOWHU for occasional use in dry and very dusty work areas. 5 • • • Unscrew the slotted nuts . Remove the filter. Separate the two halves of the filter. 138BA003K 138BA002K )DEULF ILOWHU for normal cutting conditions and winter operation.
:LQWHU 2SHUDWLRQ 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.
7DNLQJ &DUH RI *XLGH %DU $W WHPSHUDWXUHV EHORZ & ) It is advisable to fit the optional intake air preheating kit if you use your saw in extremely cold conditions (temperatures below -10 ° C /+14 ° F, in powder or drifting snow). 2 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.
$GMXVWLQJ &DUEXUHWRU 0HDVXUH JURRYH GHSWK with scale on filing gauge * at nose of Duromatic bars in area used most for cutting on Rollomatic bars - Chain type Pitch minimum groove depth Rapid 3/8" 6.0 mm (0.24") * Special accessory 0RWRU PDQDJHPHQW Exhaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. carburetion, ignition, timing and valve or port timing) without the addition of any major hardware.
6SDUN $UUHVWLQJ 6FUHHQ LQ 0XIIOHU &KHFNLQJ 6SDUN 3OXJ (QJLQH VWRSV ZKLOH LGOLQJ • Turn the idle speed adjusting screw /$ clockwise until chain begins to run then back off the screw one quarter of a turn 5 &KDLQ UXQV ZKHQ HQJLQH LV LGOLQJ • Turn the idle speed adjusting screw /$ counterclockwise until chain stops running then turn screw another quarter turn in the same direction (UUDWLF LGOLQJ EHKDYLRU SRRU DFFHOHUDWLRQ Idle setting is too lean • Turn the low speed adjusting screw / cou
5HSODFLQJ 6WDUWHU 5RSH DQG 5HZLQG 6SULQJ 1 2 3 3 • Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded. 001BA002 KN 138BA017 LÄ 000BA036 TR 1 • • • Remove four screws push the hand guard upward pull underside of fan housing away from crankcase and remove it downward • • Use a screwdriver to pry the rope out of the starter grip. Remove remaining rope from the rotor and starter grip.
7 6 5 5 • • • Use a screwdriver to pry the rope out of the starter grip. Remove remaining rope from the rotor and starter grip. Thread the new rope Part No. 1122 190 2900 through the top of the starter grip and then pull through the rope guide bush . 001BA005 K 001BA004 K 001BA003 K 4 Thread the rope through the rotor and secure it with a simple overhand knot. • • • • • Coat rope rotor bearing bore with non-resinous oil.
8 • • • • • 7HQVLRQLQJ UHZLQG VSULQJ Make a loop in the unwound 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 in the rope guide bush. If the grip drops to one side: Increase spring tension by one additional turn.
K &KHFNLQJ DQG 5HSODFLQJ &KDLQ 6SURFNHW 5HSODFH WKH FKDLQ VSURFNHW DIWHU XVLQJ WZR 2LORPDWLF FKDLQV - or even sooner if the wear marks on the sprocket are deeper than approx. 0.5 mm (1/64") since this would reduce the life of the chain. 5LP VSURFNHW • • Check wear marks: Left: on webs of rim sprockets Right: on teeth of spur sprockets. Use a screwdriver to remove the E-clip. Take off the washer and rim sprocket.
0DLQWDLQLQJ DQG 6KDUSHQLQJ 6DZ &KDLQ &RUUHFWO\ VKDUSHQHG FKDLQ A 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. &OHDQ DQG FKHFN \RXU FKDLQ 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. ,PSRUWDQW It is absolutely imperative to comply with the angles and dimensions specified below.
689BA025 KN 90° )LOH FRUUHFWO\ As these requirements can be met only after sufficient and constant practice: 8VH D ILOH KROGHU * A file holder must be used for manual resharpening of Super chain. The correct filing angle is marked on the file holder. • • • • • 80° 30° 35° 10° 0° 689BA022 KN 90° 85° 70° 60° 689BA018 KN • • )RU FKHFNLQJ DQJOHV STlHL filing gauge* (see table) A universal tool for checking the filing and side plate angles, depth gauge setting and cutter length.
689BA023 KN a 'HSWK JDXJH VHWWLQJ 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 = D Depth gauge distance “D” Inch (mm) mm (Inch) 1/4 3/8-PM 3/8-PMN 0.325 3/8 0.404 (6.35) (9.32) (9.32) (8.25) (9.32) (10.26) 0.65 0.65 0.45 0.65 0.65 0.80 (0.026) (0.018) (0.026) (0.026) (0.026) (0.031) This setting may be increased by 0.2 mm (0.
Complete machine Throttle trigger , trigger interlock, Master Control Chain brake Filter in fuel tank Fuel tank Chain oil tank Chain lubrication Saw chain Guide bar Chain sprocket Air filter Cooling inlets Cylinder fins Carburetor Spark plug All accessible screws and nuts (not adjusting screws) Rubber vibration buffers Spark arrestor screen in muffler Chain catcher Visual inspection (condition leaks) Clean x Check operation Check operation Check by STIHL dealer Check Clean, Replace filter element Replac
6SHFLILFDWLRQV (QJLQH STIHL single cylinder two-stroke engine Displacement: Bore: Stroke: Idle speed: Maximum engine speed (cut-off speed): 61.5 cm3 (3.75 cu.in) 48 mm (1.89 in) 34 mm (1.34 in) 2,500 r.p.m. Chain lubrication: Fully automatic, speed-controlled reciprocating oil pump. Additional manual oil flow control 13,500 rpm Oil tank capacity: 0.32 l (0.68 US pt) ,JQLWLRQ 6\VWHP Type: Electronic magneto ignition (breakerless) Ignition timing: 1.9 - 2.5 mm (0.075 - 0.1 in) B.T.D.C. at 8,000 r.p.m.
2UGHULQJ 6SDUH 3DUWV 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. When purchasing these parts, always quote the saw model, the part numbers and names of the parts.
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purchaser that your engine is free from defects in materials and workmanship which cause the engine to fail to conform with applicable regulations for a period of two years. Mechanical diagnostic work will be performed at an authorized STIHL servicing dealer. Emission test may be performed either at STIHL Incorporated or at any independent test laboratory.
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.
