Instruction Manual
Page 2
... Instructions 40 Taking Care of the Saw 57 Specifications 59 Special Accessories 60 Ordering Spare Parts 61 Maintenance and Repairs 61 STIHL Incorporated Federal Emission Control Warranty Statement 62 Trademarks 64 Allow only persons who understand this Manual, please contact your chainsaw. ... Chain Sprocket 50 Maintaining and Sharpening Saw Chain 51 Maintenance Chart 55 STIHl MS 270, MS 270 C, MS 280, MS 280 C Main Parts of Guide Bar 41 Air Filter System 42 Cleaning the Air Filter 42 Motor Management 43 Adjusting the Carburetor 43 Spark Arresting Screen in USA
... Instructions 40 Taking Care of the Saw 57 Specifications 59 Special Accessories 60 Ordering Spare Parts 61 Maintenance and Repairs 61 STIHL Incorporated Federal Emission Control Warranty Statement 62 Trademarks 64 Allow only persons who understand this Manual, please contact your chainsaw. ... Chain Sprocket 50 Maintaining and Sharpening Saw Chain 51 Maintenance Chart 55 STIHl MS 270, MS 270 C, MS 280, MS 280 C Main Parts of Guide Bar 41 Air Filter System 42 Cleaning the Air Filter 42 Motor Management 43 Adjusting the Carburetor 43 Spark Arresting Screen in USA
Instruction Manual
Page 26
... STIHL chainsaw to cut wood becomes hard to properly perform its function of reducing the risk of kickback and other factors. replace worn sprockets or chains. Keep the chain at proper tension. Like an automobile brake, a chainsaw chain brake incurs wear each use. !Warning! MS 270, MS 270 C, MS 280, MS ...of forest fires is damaged, missing or modified. Do not operate your STIHL servicing dealer only. Remember that the chain is missing or damaged. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each time it must be properly maintained. Have such ...
... STIHL chainsaw to cut wood becomes hard to properly perform its function of reducing the risk of kickback and other factors. replace worn sprockets or chains. Keep the chain at proper tension. Like an automobile brake, a chainsaw chain brake incurs wear each use. !Warning! MS 270, MS 270 C, MS 280, MS ...of forest fires is damaged, missing or modified. Do not operate your STIHL servicing dealer only. Remember that the chain is missing or damaged. Tighten all nuts, bolts and screws except the carburetor adjustment screws after each time it must be properly maintained. Have such ...
Instruction Manual
Page 32
...STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that state they are for use in turn, increases the risk of the fuel is stored should be kept tightly closed in your vehicle and place the canister on the ground before filling. MS 270, MS 270 C, MS 280, MS...any moisture getting into the mixture. A new chain has to operate on a vehicle. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. and, with a minimum octane rating of ...
...STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that state they are for use in turn, increases the risk of the fuel is stored should be kept tightly closed in your vehicle and place the canister on the ground before filling. MS 270, MS 270 C, MS 280, MS...any moisture getting into the mixture. A new chain has to operate on a vehicle. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. and, with a minimum octane rating of ...
Instruction Manual
Page 37
...running problems, first check that conditions for use of the cover plate still apply. If the carburetor box cover is removed, the shutter can be in the winter position. : If your STIHL servicing dealer, at a high idle speed (with cold air - It is usually necessary to... At temperatures above +68 °F (+20 °C): Turn the shutter back to help prevent snow being sucked into position. see "Adjusting the Carburetor". 36 MS 270, MS 270 C, MS 280, MS 280 C Heated air is poor : Turn low speed screw (L) 1/4 turn the shutter (1) from around the cylinder and mixed with chain brake ...
...running problems, first check that conditions for use of the cover plate still apply. If the carburetor box cover is removed, the shutter can be in the winter position. : If your STIHL servicing dealer, at a high idle speed (with cold air - It is usually necessary to... At temperatures above +68 °F (+20 °C): Turn the shutter back to help prevent snow being sucked into position. see "Adjusting the Carburetor". 36 MS 270, MS 270 C, MS 280, MS 280 C Heated air is poor : Turn low speed screw (L) 1/4 turn the shutter (1) from around the cylinder and mixed with chain brake ...
Instruction Manual
Page 41
... to bed in during the break-in period, the frictional resistances in the engine are greater during the break-in direction of arrow. : Remove the carburetor box cover (2). 3 146BA010 KN : Unscrew and dry off the spark plug. : Set the Master Control lever to "Stop" position 0 : Press down ... time, crank the engine several times with the chain brake engaged (saw chain at high revs (full throttle off the spark plug boot (3). 40 MS 270, MS 270 C, MS 280, MS 280 C Do not make the mixture leaner to "Warm Start" n - reassemble the other parts. : Set Master Control lever to achieve an ...
... to bed in during the break-in period, the frictional resistances in the engine are greater during the break-in direction of arrow. : Remove the carburetor box cover (2). 3 146BA010 KN : Unscrew and dry off the spark plug. : Set the Master Control lever to "Stop" position 0 : Press down ... time, crank the engine several times with the chain brake engaged (saw chain at high revs (full throttle off the spark plug boot (3). 40 MS 270, MS 270 C, MS 280, MS 280 C Do not make the mixture leaner to "Warm Start" n - reassemble the other parts. : Set Master Control lever to achieve an ...
Instruction Manual
Page 42
... against the underside of the bar and can damage the crankshaft and bearings. MS 270, MS 270 C, MS 280, MS 280 C * see "Tensioning the Saw Chain"! Always slacken off the bar. Storing for engine to cool down. This protects engine-mounted components (ignition, carburetor) from sources of ignition, until you replace the chain - in a dry place, well...
... against the underside of the bar and can damage the crankshaft and bearings. MS 270, MS 270 C, MS 280, MS 280 C * see "Tensioning the Saw Chain"! Always slacken off the bar. Storing for engine to cool down. This protects engine-mounted components (ignition, carburetor) from sources of ignition, until you replace the chain - in a dry place, well...
Instruction Manual
Page 43
.... In case of stubborn dirt: : Wash the filter components in the direction of the arrow. : Remove the carburetor box cover (2). : Clean away loose dirt from around the filter. : Remove the filter. : Knock the filter...STIHL universal cleaner or a clean, non-flammable solution (e.g. 146BA010 KN English / USA Air Filter System Cleaning the Air Filter Chain type Picco Rapid Rapid Rapid Pitch 3/8" P 1/4" 3/8"; 0.325" 0.404" Minimum groove depth 0.20" (5.0 mm) 0.16" (4.0 mm) 0.24" (6.0 mm) 0.28" (7.0 mm) The air filter system can be adapted to Using this Manual" 42 MS 270, MS 270 C, MS...
.... In case of stubborn dirt: : Wash the filter components in the direction of the arrow. : Remove the carburetor box cover (2). : Clean away loose dirt from around the filter. : Remove the filter. : Knock the filter...STIHL universal cleaner or a clean, non-flammable solution (e.g. 146BA010 KN English / USA Air Filter System Cleaning the Air Filter Chain type Picco Rapid Rapid Rapid Pitch 3/8" P 1/4" 3/8"; 0.325" 0.404" Minimum groove depth 0.20" (5.0 mm) 0.16" (4.0 mm) 0.24" (6.0 mm) 0.28" (7.0 mm) The air filter system can be adapted to Using this Manual" 42 MS 270, MS 270 C, MS...
Instruction Manual
Page 44
... KN Motor Management English / USA Adjusting the Carburetor Exhaust emissions are controlled electronically. LA - Carburetor without the addition of the fundamental engine the following carburetors: 3 parameters and components (e.g. Full load range and maximum RPM are controlled by the Your chainsaw is equipped with high speed screw (H) MS 270, MS 270 C, MS 280, MS 280 C 43 Intelligent Engine Management - HL...
... KN Motor Management English / USA Adjusting the Carburetor Exhaust emissions are controlled electronically. LA - Carburetor without the addition of the fundamental engine the following carburetors: 3 parameters and components (e.g. Full load range and maximum RPM are controlled by the Your chainsaw is equipped with high speed screw (H) MS 270, MS 270 C, MS 280, MS 280 C 43 Intelligent Engine Management - HL...
Instruction Manual
Page 46
...is damaged or coked up the engine. : Turn high speed screw (H) slightly clockwise (leaner) - Machines with Intelligent Engine Management The carburetor adjusts automatically to Using this Manual" 45 The automatic adjustment process can be speeded up as follows: : Run the engine for about 10... if engine power is low on power, check the spark arresting screen in the muffler. : Allow muffler to cool down . 146BA008 KN MS 270, MS 270 C, MS 280, MS 280 C * see "Guide to any change in operating conditions (e.g. English / USA Spark Arresting Screen* in Muffler Only machines with high ...
...is damaged or coked up the engine. : Turn high speed screw (H) slightly clockwise (leaner) - Machines with Intelligent Engine Management The carburetor adjusts automatically to Using this Manual" 45 The automatic adjustment process can be speeded up as follows: : Run the engine for about 10... if engine power is low on power, check the spark arresting screen in the muffler. : Allow muffler to cool down . 146BA008 KN MS 270, MS 270 C, MS 280, MS 280 C * see "Guide to any change in operating conditions (e.g. English / USA Spark Arresting Screen* in Muffler Only machines with high ...
Instruction Manual
Page 50
... area. : Dispose of remaining fuel and cleaning solution properly in accordance with local environmental requirements. : Run engine until carburetor is dry, this helps prevent the carburetor diaphragms sticking together. : Remove the saw chain and guide bar, clean them out of non-resinous oil. : Place...filter. : If you take them and spray with frame in the fan cover - MS 270, MS 270 C, MS 280, MS 280 C 49 English / USA Storing the Machine Replacing a Broken Rewind Spring : Remove the rope rotor. STIHL BioPlus, completely fill the chain oil tank. : Store the unit in the fan cover...
... area. : Dispose of remaining fuel and cleaning solution properly in accordance with local environmental requirements. : Run engine until carburetor is dry, this helps prevent the carburetor diaphragms sticking together. : Remove the saw chain and guide bar, clean them out of non-resinous oil. : Place...filter. : If you take them and spray with frame in the fan cover - MS 270, MS 270 C, MS 280, MS 280 C 49 English / USA Storing the Machine Replacing a Broken Rewind Spring : Remove the rope rotor. STIHL BioPlus, completely fill the chain oil tank. : Store the unit in the fan cover...
Instruction Manual
Page 57
... dusty work be done by a STIHL servicing dealer 2) Firmly tighten cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation 3) not in all versions, market-specific X X X X X X X 56 MS 270, MS 270 C, MS 280, MS 280 C If you only use the saw occasionally, extend the intervals accordingly. Carburetor Check idle adjustment - chain must...
... dusty work be done by a STIHL servicing dealer 2) Firmly tighten cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation 3) not in all versions, market-specific X X X X X X X 56 MS 270, MS 270 C, MS 280, MS 280 C If you only use the saw occasionally, extend the intervals accordingly. Carburetor Check idle adjustment - chain must...
Instruction Manual
Page 58
... of the Saw English / USA 3 4 1 2 # 7 8 11 6 9 12 5 13 10 17 16 15 18 14 22 20 23 21 19 24 MS 270, MS 270 C, MS 280, MS 280 C 146BA016 KN 146BA015 KN 1 Carburetor box cover twist lock 2 Carburetor adjusting screws 3 Spark plug boot 4 Decompression valve* (automatically resetting) 5 Chain sprocket cover 6 Chain sprocket 7 Chain brake 8 Adjusting wheel of quick...
... of the Saw English / USA 3 4 1 2 # 7 8 11 6 9 12 5 13 10 17 16 15 18 14 22 20 23 21 19 24 MS 270, MS 270 C, MS 280, MS 280 C 146BA016 KN 146BA015 KN 1 Carburetor box cover twist lock 2 Carburetor adjusting screws 3 Spark plug boot 4 Decompression valve* (automatically resetting) 5 Chain sprocket cover 6 Chain sprocket 7 Chain brake 8 Adjusting wheel of quick...
Instruction Manual
Page 59
...support handle for carburetor box cover. 2. Oil Filler Cap For closing the fuel tank. 20. Front Hand Guard Provides protection against wood. 12. Decompression Valve (automatically resetting) Releases compression resistance to the operator's hands. (not illustrated) 58 MS 270, MS 270 C, MS 280, MS 280 C Bumper ... the engine. 19. English / USA Definitions 1. Spark Plug Boot Connects the spark plug with the ignition wire. 4. Carburetor Box Cover Twist Lock Lock for the right hand, located at the front of operator contact by inertia. 8. Muffler Reduces...
...support handle for carburetor box cover. 2. Oil Filler Cap For closing the fuel tank. 20. Front Hand Guard Provides protection against wood. 12. Decompression Valve (automatically resetting) Releases compression resistance to the operator's hands. (not illustrated) 58 MS 270, MS 270 C, MS 280, MS 280 C Bumper ... the engine. 19. English / USA Definitions 1. Spark Plug Boot Connects the spark plug with the ignition wire. 4. Carburetor Box Cover Twist Lock Lock for the right hand, located at the front of operator contact by inertia. 8. Muffler Reduces...
Instruction Manual
Page 60
.... Specifications English / USA Engine STIHL single cylinder two-stroke engine Displacement Bore Stroke Idle speed Weight without bar and chain MS 270 3.0 cu in (50 cm3) 1.73 in (44.0 mm) 1.30 in (32.9 mm) 2,800 rpm 11.7 lb (5.3 kg) MS 270 C 3.0 cu in (50 cm3...1.30 in (0.5 mm) Fuel/Oil System Diaphragm carburetor All position with integral fuel pump Fuel tank capacity 1.1 US pt (0.520 l) Fuel mixture See "Fuel" Chain lubrication Fully automatic, speed-controlled reciprocating oil pump. Oil tank capacity 0.6 US pt (0.280 l) MS 270, MS 270 C, MS 280, MS 280 C 59 Category: A = 300 hours...
.... Specifications English / USA Engine STIHL single cylinder two-stroke engine Displacement Bore Stroke Idle speed Weight without bar and chain MS 270 3.0 cu in (50 cm3) 1.73 in (44.0 mm) 1.30 in (32.9 mm) 2,800 rpm 11.7 lb (5.3 kg) MS 270 C 3.0 cu in (50 cm3...1.30 in (0.5 mm) Fuel/Oil System Diaphragm carburetor All position with integral fuel pump Fuel tank capacity 1.1 US pt (0.520 l) Fuel mixture See "Fuel" Chain lubrication Fully automatic, speed-controlled reciprocating oil pump. Oil tank capacity 0.6 US pt (0.280 l) MS 270, MS 270 C, MS 280, MS 280 C 59 Category: A = 300 hours...
Instruction Manual
Page 63
... as the carburetor and the ignition system. Your emission control system includes parts such as a problem exists. Manufacturer's Warranty Coverage: In the U.S., 1997 and later model year small off -road equipment engines must be aware, however, that your equipment type engine. Coverage by STIHL Incorporated STIHL Incorporated warrants to STIHL. 62 MS 270, MS 270 C, MS 280, MS 280 C STIHL Incorporated...
... as the carburetor and the ignition system. Your emission control system includes parts such as a problem exists. Manufacturer's Warranty Coverage: In the U.S., 1997 and later model year small off -road equipment engines must be aware, however, that your equipment type engine. Coverage by STIHL Incorporated STIHL Incorporated warrants to STIHL. 62 MS 270, MS 270 C, MS 280, MS 280 C STIHL Incorporated...
Instruction Manual
Page 64
...signed warranty card. Emission test may be warranted for any authorized STIHL servicing dealer or warranty station. Limitations This Emission Control Systems Warranty shall not cover any independent test laboratory. MS 270, MS 270 C, MS 280, MS 280 C 63 Any warranted part which is liable for damages ... maintenance, or which is defective, the part will be performed either at STIHL Incorporated or at any of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or...
...signed warranty card. Emission test may be warranted for any authorized STIHL servicing dealer or warranty station. Limitations This Emission Control Systems Warranty shall not cover any independent test laboratory. MS 270, MS 270 C, MS 280, MS 280 C 63 Any warranted part which is liable for damages ... maintenance, or which is defective, the part will be performed either at STIHL Incorporated or at any of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or...