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Stihl 066 Instruction Manual

Stihl 066 Manual

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Stihl 066 | Instruction Manual - Page 1
'J;; JR~~ru~tipn'Manual , OWRe'r"s'Manual '~ssem6Iihg Safety~Preeautions Q,~erati ngt.Instructions i:Maintem!ance . . / . . . Warning! This saw is capable of severe kickback which may cause serious or fatal injury. Only for users with extraorcJinary cutting needs and
Stihl 066 | Instruction Manual - Page 2
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 of the guide bar instructions
Stihl 066 | Instruction Manual - Page 3
42 Ordering Spare Parts 43 Maintaining and Sharpening Saw Chain 44 Maintenance Chart 47 Specifications 48 Stihl Incorporated Limited Warranty Federal Emission Control Systems Utility Engines 49 This Manual contains operating and safety instructions for all STIHL 066 series power saws
Stihl 066 | Instruction Manual - Page 4
19 18 21 22 20 23 2 145BA025 KN 145BA026 K 1 = Carburetor box cover twist lock 2 = Spark plug boot 3 = Handle Heating Switch 4 = Chain sprocket cover 5 = Chain sprocket 6 = Chain brake 7 = Chain catcher 8 = Chain tensioner 9 = Bumper spike 10 = Guide bar 11 = Oilomatic saw chain 12 = Oil filler
Stihl 066 | Instruction Manual - Page 5
Box Cover Twist Lock Lock for carburetor box cover. 2. Spark Plug Boot Connects the spark plug with . 9. Bumper Spike Toothed stop for holding saw steady against wood. 10. Guide Bar Supports and guides the saw chain. 066 11. Oilomatic Saw Chain A loop consisting of cutters, tie straps and drive
Stihl 066 | Instruction Manual - Page 6
and warnings. Read the Owner's Manual and the safety instructions periodically. Pay special attention to the 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
Stihl 066 | Instruction Manual - Page 7
those persons using chainsaws 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
Stihl 066 | Instruction Manual - Page 8
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 guard (scabbard) should be over the chain and the guide bar, which should point backwards. When carrying your saw,
Stihl 066 | Instruction Manual - Page 9
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 that combustible fuel vapors may be vented from the fuel system. Fueling Instructions !Warning! Fuel your chainsaw in well-ventilated areas, outdoors only.
Stihl 066 | Instruction Manual - Page 10
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 your saw without assistance. For specific starting instructions, see the appropriate section of the Owner's Manual. Proper starting methods reduce the risk of
Stihl 066 | Instruction Manual - Page 11
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 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
Stihl 066 | Instruction Manual - Page 12
engine. To reduce risk of burns do not touch the muffler and other parts while they are hot. Don't work alone. Keep within calling distance 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
Stihl 066 | Instruction Manual - Page 13
trigger. Left-handers should follow these instructions too. Wrap your fingers tightly around the Never touch a chain with your hand or any part of your body when the engine is running, even Never work on a ladder, or on any other insecure support. Never use the saw above shoulder height. !Warning!
Stihl 066 | Instruction Manual - Page 14
. 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, unintentionally contacts solid material in the wood or is incorrectly used to begin a plunge or boring cut. 12
Stihl 066 | Instruction Manual - Page 15
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 listed as complying in the "Specifications" section of the Owner's Manual or - other replacement bar and chain combinations marked in accordance
Stihl 066 | Instruction Manual - Page 16
if the chain brake does not function properly. Take the saw to your local STIHL Service Centre! Do not use the saw until the problem has been rectified (see the section "Chain Brake"). Quickstop chain brake STIHL has developed a chain stopping system designed to reduce the risk of injury in certain
Stihl 066 | Instruction Manual - Page 17
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
Stihl 066 | Instruction Manual - Page 18
aggressive chains, these bars may be less effective in reducing kickback, and may result in higher kickback forces. Bow Guides !Warning! Do not mount a bow guide on any STIHL chainsaw. Any chainsaw equipped with a bow guide is potentially very dangerous. The risk of kickback is increased with a bow
Stihl 066 | Instruction Manual - Page 19
Cutting Techniques Felling Felling is cutting down a tree. 001BA037 LÄ 001BA038 LÄ Before felling a tree, consider carefully all conditions which may affect the direction of fall, including: A = Pull-in: B = Pushback: The intended direction of the fall. Pull-in occurs when the chain on the
Stihl 066 | Instruction Manual - Page 20
001BA088 LÄ 001BA040 LÄ 001BA041 LÄ 1 1/2 1 21/2 Felling Instructions: 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,
Stihl 066 | Instruction Manual - Page 21
001BA019 KN 001BA042 LÄ Gunning sight When making the felling notch, use the gunning sight on the shroud and housing to check the required direction of fall: • Position the saw so that the gunning sight points exactly in the direction you want the tree to fall. Conventional cut A = felling notch -
Stihl 066 | Instruction Manual - Page 22
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 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),
Stihl 066 | Instruction Manual - Page 23
Be extremely careful with partially fallen trees which are poorly supported. When the tree hangs or for some other reason these techniques. Sectioning method 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
Stihl 066 | Instruction Manual - Page 24
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
Stihl 066 | Instruction Manual - Page 25
logs, place log through "V" - shaped supports on top of a sawhorse. Never permit instructions in the appropriate section of your Owner's Manual, especially those in the chapters "Mounting the Bar and Chain", "Maintaining and Sharpening" and "Chain Brake". !Warning! Use only STIHL replacement parts
Stihl 066 | Instruction Manual - Page 26
repair work not described in your Owner's Manual. Have such work performed at your STIHL service shop only. !Warning! Never test the 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
Stihl 066 | Instruction Manual - Page 27
. Wear work gloves to protect hands •• Fit the chain - start at the bar nose. 143BA003 KN Fit the guide bar over the studs (4) cutting edges on top of bar must point to right and engage the peg of the nuts only finger-tight. • Tensioning the chain see section "Tensioning the Saw Chain". 066 25
Stihl 066 | Instruction Manual - Page 28
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 branded fuels! Use only STIHL two-stroke
Stihl 066 | Instruction Manual - Page 29
specially formulated for use in STIHL engines. Do not use into the canister first, and then add gasoline. Gasoline Oil (STIHL 50:1 or equivalent branded TC oils) US gal. US fl end of combination wrench) to tighten slotted fuel caps. 066 143BA008 KN 143BA009 KN Change the fuel pick up body
Stihl 066 | Instruction Manual - Page 30
in the oil tank when the fuel tank is empty. If the oil tank is still partly full, the reason may be a problem in the oil supply system: Check chain lubrication, clean the oil passages, contact your STIHL dealer for assistance if necessary. 143BA010 KN 143BA024 KN The saw chain must always throw
Stihl 066 | Instruction Manual - Page 31
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
Stihl 066 | Instruction Manual - Page 32
. The valve closes automatically as soon as the engine begins to fire. • For this reason the button should be pressed in before each starting attempt. 066
Stihl 066 | Instruction Manual - Page 33
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 - 066 31
Stihl 066 | Instruction Manual - Page 34
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 starting work. To turn off engine: • Move Master Control lever to "Stop" position b 32 066
Stihl 066 | Instruction Manual - Page 35
the combustion chamber. • Refit the spark plug and connect the spark plug boot - reassemble all other parts • Set Master Control lever to "Warm Start"=n even if engine is cold. • Press in decompression adjusting screw clockwise. To reduce oil feed turn adjusting screw counterclockwise. 066 33
Stihl 066 | Instruction Manual - Page 36
all moving parts have to carburetor diaphragms sticking together. • Remove the saw chain and guide bar, clean them and protect with corrosion inhibiting oil. • Thoroughly clean the machine pay special attention to the cylinder fins and air filter. • If you use a biological chain lubricant (e.g. STIHL
Stihl 066 | Instruction Manual - Page 37
HD filters have a long wear life when used in a dry condition. Therefore, always use and keep STIHL filters dry. 066 • Undo the knob above the rear handle in direction of arrow and remove the carburetor box cover. • Pull off the filter. 145BA028 K When there is a noticeable loss of engine power
Stihl 066 | Instruction Manual - Page 38
dirt or sticky filter fabric: • Wash with STIHL universal cleaner or in a clean, non-flammable Do not use a high-pressure washer. • Dry all parts of the filter. Do not expose to high temperatures. (with felt prefilter) and carburetor box cover. • Check carburetor setting and readjust if necessary.
Stihl 066 | Instruction Manual - Page 39
This is essential to avoid engine running problems and overheating. Machines with HD filter: • Install a standard filter element in place of the HD filter. • Refit the carburetor box cover and tighten down the whole heating system is maintenance-free. *Special accessory *Special accessory 066 37
Stihl 066 | Instruction Manual - Page 40
mm (0.24") 2 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 in area used most for cutting on Rollomatic bars - *Special accessory 38 066
Stihl 066 | Instruction Manual - Page 41
ignition, timing and valve or port timing) without the addition of any major hardware. The carburetor is set at the factory to provide an optimum fuel-air mixture under all operating conditions. screw (L) counterclockwise no further than stop until engine runs and accelerates smoothly - 066 39
Stihl 066 | Instruction Manual - Page 42
deposits to form on the insulator nose which may result in trouble in operation. If engine is down on power, difficult to problems which have caused fouling of spark plug: Incorrect carburetor setting, too much oil in fuel mix, dirty air filter, unfavorable running conditions, e.g. operating at part
Stihl 066 | Instruction Manual - Page 43
remaining rope from the rotor and starter grip Thread the new rope Part No. 1122 190 2900 through the lop of the starter grip and then pull through the rope guide bush (5). • Thread the rope through the rotor and secure it of the arrow • Hold the rotor steady straighten the twisted rope - 066 41
Stihl 066 | Instruction Manual - Page 44
• The starter grip must sit firmly in the rope guide bush. If the grip droops to one side: Increase spring protection and work gloves. • Remove the spring housing and parts of spring. • Fit the new spring housing bottom plate guide bar. Disengage the chain brake: Pull hand guard toward front
Stihl 066 | Instruction Manual - Page 45
authorized STIHL servicing dealer using original STlHL spare parts. Original STIHL parts can be identified by the STlHL part number, the logo p and the STIHL parts symbol ( The symbol may appear alone on small parts. Model Machine number Guide bar part number Chain part number Sprocket part number
Stihl 066 | Instruction Manual - Page 46
. 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. Important: It is absolutely imperative to comply with the angles and dimensions specified below. If the saw
Stihl 066 | Instruction Manual - Page 47
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 and side plate angles, depth gauge setting and cutter length. Also cleans the guide bar groove and oil inlet hole. File correctly • If you use a
Stihl 066 | Instruction Manual - Page 48
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. 772 4806 5.2 (13/64) 5605 772 5206 5.5 (7/32) 5605 772 5506 File holder Part No. 5605 750 4327 5605 750 4327 5605 750 4327 5605 750 4328 5605 750 4329
Stihl 066 | Instruction Manual - Page 49
Guide bar Chain sprocket Air filter Cooling inlets Cylinder fins Carburetor Retighten Have replaced by STIHL dealer Inspect Clean or Replace * Tighten down the cylinder base screws firmly after the first 10 to 20 hours of operation 066 x x x x x x x x 29 x 29 27 xx x 28 x x 28
Stihl 066 | Instruction Manual - Page 50
gap 0.5 mm (0.02 in) Fuel/Oil System Carburetor: All position diaphragm carburetor with integral fuel pump Air filter: Prefilter and § 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 . 48 066
Stihl 066 | Instruction Manual - Page 51
your small off-road equipment engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications. You are responsible for presenting your small off-road equipment engine to a STIHL service center as soon as a problem exists. The warranty repairs will be completed in
Stihl 066 | Instruction Manual - Page 52
(if applicable) Fasteners Where to make a claim for Warranty Service Bring the product to any authorized STIHL servicing dealer and present the signed warranty card. Maintenance Requirements The maintenance instructions in this manual are based on the application of the recommended 2-stroke fuel
Stihl 066 | Instruction Manual - Page 53
path from the falling tree. 7. Keep all parts of your body away from the saw chain the chainsaw with the engine stopped, the guide bar and saw chain to the rear, and service, other than the items listed in the Owner's Manual maintenance instructions, should be performed by competent chainsaw service
Stihl 066 | Instruction Manual - Page 54
~. ,~ . ,. I' ,1~WARNING'! ,gjne exhaust from thispr'oduct ins chemicals known to the State 'California to cause cancer, birth effficts or 9ther reproductive harm. ,.t::,~.i; ~ '" . a I I . . . . a . . a D II I a