Instruction Manual
Page 3
...Oil Quantity Control 33 During Break-in this Manual. !Warning! Printed in Germany 066 Winter Operation 37 Electric Handle Heating 37 Take Care of Guide Bar 38 Adjusting Carburetor 38 Motor management 38 Spark Arresting Screen in Muffler 40 Checking Spark Plug 40 ...System 35 Cleaning Standard Filter 35 Cleaning HD Filter 36 Printed on pages 4 to continually improve all STIHL 066 series power saws. Contact your STIHL dealer or the STIHL distributor for informations and assistance. 1 To receive maximum performance and satisfaction from time-to operate your saw...
...Oil Quantity Control 33 During Break-in this Manual. !Warning! Printed in Germany 066 Winter Operation 37 Electric Handle Heating 37 Take Care of Guide Bar 38 Adjusting Carburetor 38 Motor management 38 Spark Arresting Screen in Muffler 40 Checking Spark Plug 40 ...System 35 Cleaning Standard Filter 35 Cleaning HD Filter 36 Printed on pages 4 to continually improve all STIHL 066 series power saws. Contact your STIHL dealer or the STIHL distributor for informations and assistance. 1 To receive maximum performance and satisfaction from time-to operate your saw...
Instruction Manual
Page 4
Main Parts of Saw 2 1 3 5 4 6 8 7 9 10 11 14 13 12 15 16 17 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 ... 17 = Starter grip 18 = Fuel filler cap 19 = Master Control lever 20 = Throttle trigger 21 = Throttle trigger interlock 22 = Rear handle 23 = Rear hand guard 066
Main Parts of Saw 2 1 3 5 4 6 8 7 9 10 11 14 13 12 15 16 17 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 ... 17 = Starter grip 18 = Fuel filler cap 19 = Master Control lever 20 = Throttle trigger 21 = Throttle trigger interlock 22 = Rear handle 23 = Rear hand guard 066
Instruction Manual
Page 5
... to the operator's hands. (not illustrated). 3 Master Control Lever Lever for starting the engine. 18. Rear Handle The support handle for carburetor box cover. 2. Decompression Valve Makes starting throttle, run and stop switch position. 20. Spark Plug Boot Connects the spark plug with the.... (not illustrated). Definitions 1. Clutch Couples engine to operator's right hand. Chain Sprocket Cover Covers the clutch and the sprocket. 5. Carburetor Box Cover Twist Lock Lock for the right hand, located at front of operator contact by inertia. 7. Oilomatic Saw Chain A loop ...
... to the operator's hands. (not illustrated). 3 Master Control Lever Lever for starting the engine. 18. Rear Handle The support handle for carburetor box cover. 2. Decompression Valve Makes starting throttle, run and stop switch position. 20. Spark Plug Boot Connects the spark plug with the.... (not illustrated). Definitions 1. Clutch Couples engine to operator's right hand. Chain Sprocket Cover Covers the clutch and the sprocket. 5. Carburetor Box Cover Twist Lock Lock for the right hand, located at front of operator contact by inertia. 7. Oilomatic Saw Chain A loop ...
Instruction Manual
Page 26
...STIHL Owner's Manual should be properly maintained. Never touch a hot muffler or burn will reduce the effectiveness of fire and hearing loss. Remember that could ignite combustible fumes and cause a fire. replace worn sprockets or chains. Tighten all nuts, bolts and screws except the carburetor...the saw is damaged, missing or modified. Keep the chain at your saw . every three months, Moderate usage - in your STIHL servicing dealer for maintenance whenever the brake system cannot be attached.) A loose connection between spark plug terminal and ignition wire connector in...
...STIHL Owner's Manual should be properly maintained. Never touch a hot muffler or burn will reduce the effectiveness of fire and hearing loss. Remember that could ignite combustible fumes and cause a fire. replace worn sprockets or chains. Tighten all nuts, bolts and screws except the carburetor...the saw is damaged, missing or modified. Keep the chain at your saw . every three months, Moderate usage - in your STIHL servicing dealer for maintenance whenever the brake system cannot be attached.) A loose connection between spark plug terminal and ignition wire connector in...
Instruction Manual
Page 28
...up and use screwdriver to the engine. Fuel with the classification TC for mixing. 26 066 This could cause running problems or even damage the engine. For this reason it must ...fit snugly against the underside of 90 ROZ (U.S.A./Canada: pump octane min. 89!). Use only STIHL two-stroke engine oil or equivalent branded two-stroke aircooled engine oils with a lower octane rating ...the bar and, with the mix ratio 50:1. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines etc.), but magnesium castings as well. A new chain has ...
...up and use screwdriver to the engine. Fuel with the classification TC for mixing. 26 066 This could cause running problems or even damage the engine. For this reason it must ...fit snugly against the underside of 90 ROZ (U.S.A./Canada: pump octane min. 89!). Use only STIHL two-stroke engine oil or equivalent branded two-stroke aircooled engine oils with a lower octane rating ...the bar and, with the mix ratio 50:1. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines etc.), but magnesium castings as well. A new chain has ...
Instruction Manual
Page 29
...the mixture. Always thoroughly shake the mixture in approved safety fuel-canisters only. Use a suitable tool (e.g. Gasoline Oil (STIHL 50:1 or equivalent branded TC oils) US gal. US fl.oz 1 2.6 2 1/2 6.4 5 12.8 Dispose ... formulated for a long period, drain and clean the fuel tank and run engine until carburetor is stored should be cleaned from escaping gas vapor and fumes, remove the fuel filler ...: Only mix sufficient fuel for a few days work, not to tighten slotted fuel caps. 066 143BA008 KN 143BA009 KN Change the fuel pick up in which fuel mix is dry. 27 screwdriver...
...the mixture. Always thoroughly shake the mixture in approved safety fuel-canisters only. Use a suitable tool (e.g. Gasoline Oil (STIHL 50:1 or equivalent branded TC oils) US gal. US fl.oz 1 2.6 2 1/2 6.4 5 12.8 Dispose ... formulated for a long period, drain and clean the fuel tank and run engine until carburetor is stored should be cleaned from escaping gas vapor and fumes, remove the fuel filler ...: Only mix sufficient fuel for a few days work, not to tighten slotted fuel caps. 066 143BA008 KN 143BA009 KN Change the fuel pick up in which fuel mix is dry. 27 screwdriver...
Instruction Manual
Page 36
...; Drain and clean the fuel tank in a well ventilated area. • Run engine until carburetor is correct when chain fits snugly against the underside of children and other unauthorized persons. 066 During Break-in Period During Operation After Finishing Work A factory new machine should not be run... loads during this period. Retension if necessary see section "Tensioning the Saw Chain". This protects engine-mounted components (ignition, carburetor) from thermal overload. STIHL Bioplus), fill the chain oil tank. • Store the machine in a dry and high or locked location -
...; Drain and clean the fuel tank in a well ventilated area. • Run engine until carburetor is correct when chain fits snugly against the underside of children and other unauthorized persons. 066 During Break-in Period During Operation After Finishing Work A factory new machine should not be run... loads during this period. Retension if necessary see section "Tensioning the Saw Chain". This protects engine-mounted components (ignition, carburetor) from thermal overload. STIHL Bioplus), fill the chain oil tank. • Store the machine in a dry and high or locked location -
Instruction Manual
Page 37
.... Standard wire mesh filter (1) (green) for dry and very dusty work areas. 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...
.... Standard wire mesh filter (1) (green) for dry and very dusty work areas. 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...
Instruction Manual
Page 38
... it out with compressed air from the inside outward. note correct installed position • Install HD filter (with STIHL universal cleaner or in a clean, non-flammable cleaning solution (e.g. Always replace a damaged filter. 36 066 For this reason the felt prefilter should be replaced at more frequent intervals than the HD filter. Do... filter, from the inside outward, under a low-pressure water jet. In case of stubborn dirt or sticky filter fabric: • Wash with felt prefilter) and carburetor box cover. • Check carburetor setting and readjust if necessary.
... it out with compressed air from the inside outward. note correct installed position • Install HD filter (with STIHL universal cleaner or in a clean, non-flammable cleaning solution (e.g. Always replace a damaged filter. 36 066 For this reason the felt prefilter should be replaced at more frequent intervals than the HD filter. Do... filter, from the inside outward, under a low-pressure water jet. In case of stubborn dirt or sticky filter fabric: • Wash with felt prefilter) and carburetor box cover. • Check carburetor setting and readjust if necessary.
Instruction Manual
Page 39
... idle speed (with cold air this helps prevent carburetror icing. The cover plate blanks off heating. This is maintenance-free. *Special accessory *Special accessory 066 37 Switching on electric handle heating • Move switch on front handle to # • Move switch back to $ to switch off the lower... slots in the carburetor box cover must be moved to the winter position. • If your saw is no risk of overheating during long periods of engine running ...
... idle speed (with cold air this helps prevent carburetror icing. The cover plate blanks off heating. This is maintenance-free. *Special accessory *Special accessory 066 37 Switching on electric handle heating • Move switch on front handle to # • Move switch back to $ to switch off the lower... slots in the carburetor box cover must be moved to the winter position. • If your saw is no risk of overheating during long periods of engine running ...
Instruction Manual
Page 41
...If you make the setting too lean, the maximum permissible engine speed will be fuel efficient, operate reliably and produce low emissions. The carburetor is set at the factory to the stop - It enables your machine to change the setting of the fundamental engine parameters and components (e.g....from max. Engine stops while idling • Turn the idle speed adjusting screw (LA) clockwise until engine runs and accelerates smoothly - 066 39 carburetion, ignition, timing and valve or port timing) without the addition of setting pictograms • Check the air filter and clean...
...If you make the setting too lean, the maximum permissible engine speed will be fuel efficient, operate reliably and produce low emissions. The carburetor is set at the factory to the stop - It enables your machine to change the setting of the fundamental engine parameters and components (e.g....from max. Engine stops while idling • Turn the idle speed adjusting screw (LA) clockwise until engine runs and accelerates smoothly - 066 39 carburetion, ignition, timing and valve or port timing) without the addition of setting pictograms • Check the air filter and clean...
Instruction Manual
Page 42
... factors cause deposits to form on the insulator nose which have caused fouling of spark plug: Incorrect carburetor setting, too much engine oil in fuel mix, dirty air filter, unfavorable running conditions (mostly at...the spark plug. To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL (see chapter "Starting": Clean dirty spark plug. •• Check electrode gap it must be 0.5mm...arcing that could ignite combustible fumes and cause a fire. 066 Spark Arresting Screen in Muffler Checking Spark Plug 000BA039 KN 145BA043 KN 4 A 6 5 If engine is ...
... factors cause deposits to form on the insulator nose which have caused fouling of spark plug: Incorrect carburetor setting, too much engine oil in fuel mix, dirty air filter, unfavorable running conditions (mostly at...the spark plug. To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL (see chapter "Starting": Clean dirty spark plug. •• Check electrode gap it must be 0.5mm...arcing that could ignite combustible fumes and cause a fire. 066 Spark Arresting Screen in Muffler Checking Spark Plug 000BA039 KN 145BA043 KN 4 A 6 5 If engine is ...
Instruction Manual
Page 49
...Guide bar Chain sprocket Air filter Cooling inlets Cylinder fins Carburetor Spark plug All accessible screws and nuts (not adjusting screws... Inspect Clean or replace Check 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 x x 44 x x 26, 34 x 44 x...40 x x x xx x 47 chain must not turn Readjust idle Readjust electrode gap Retighten Have replaced by STIHL dealer Check Clean, Replace filter element Replace pick-up body Clean Clean Check Inspect, also check sharpness Check chain...
...Guide bar Chain sprocket Air filter Cooling inlets Cylinder fins Carburetor Spark plug All accessible screws and nuts (not adjusting screws... Inspect Clean or replace Check 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 x x 44 x x 26, 34 x 44 x...40 x x x xx x 47 chain must not turn Readjust idle Readjust electrode gap Retighten Have replaced by STIHL dealer Check Clean, Replace filter element Replace pick-up body Clean Clean Check Inspect, also check sharpness Check chain...
Instruction Manual
Page 50
...plug (suppressed): Bosch WSR 6 F or NGK BPMR 7 A Electrode gap 0.5 mm (0.02 in) Fuel/Oil System Carburetor: All position diaphragm carburetor with integral fuel pump Air filter: Prefilter and bisectional box filter Special accessory: Heavy-duty (HD) air filter Fuel tank... capacity: 0.825 l (1.74 US pt) Fuel mix: see page 12 of this Manual): STIHL reduced kickback ... (46 RCX) * See definition of "low kickback chain" on page 12. 48 066
...plug (suppressed): Bosch WSR 6 F or NGK BPMR 7 A Electrode gap 0.5 mm (0.02 in) Fuel/Oil System Carburetor: All position diaphragm carburetor with integral fuel pump Air filter: Prefilter and bisectional box filter Special accessory: Heavy-duty (HD) air filter Fuel tank... capacity: 0.825 l (1.74 US pt) Fuel mix: see page 12 of this Manual): STIHL reduced kickback ... (46 RCX) * See definition of "low kickback chain" on page 12. 48 066
Instruction Manual
Page 51
...at no abuse, neglect or improper maintenance of your owner's manual. STIHL Incorporated also warrants to the ultimate purchaser and each subsequent 066 49 Where a warrantable condition exists, STIHL Incorporated will be designed, built and equipped, at the time of .... If you can write to a STIHL service center as soon as the carburetor and the ignition system. Environmental Protection Agency (EPA) and STIHL Incorporated are warranted for presenting your warranty rights and responsibilities, please contact a STIHL customer service representative at an authorized dealer...
...at no abuse, neglect or improper maintenance of your owner's manual. STIHL Incorporated also warrants to the ultimate purchaser and each subsequent 066 49 Where a warrantable condition exists, STIHL Incorporated will be designed, built and equipped, at the time of .... If you can write to a STIHL service center as soon as the carburetor and the ignition system. Environmental Protection Agency (EPA) and STIHL Incorporated are warranted for presenting your warranty rights and responsibilities, please contact a STIHL customer service representative at an authorized dealer...
Instruction Manual
Page 52
... emission test. 50 Mechanical diagnostic work shall be warranted for required maintenance at and after the first scheduled replacement point. 066 STIHL Incorporated is liable for any emission related part on emission-related parts and must be charged for diagnostic labor which cause ... is tested as required maintenance will be used for damages to STIHL. Diagnosis You, as necessary" will begin on the application of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark ...
... emission test. 50 Mechanical diagnostic work shall be warranted for required maintenance at and after the first scheduled replacement point. 066 STIHL Incorporated is liable for any emission related part on emission-related parts and must be charged for diagnostic labor which cause ... is tested as required maintenance will be used for damages to STIHL. Diagnosis You, as necessary" will begin on the application of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark ...