Instruction Manual
Page 3
... to reproduce, translate and process with electronic systems. 1 © ANDREAS STIHL AG & Co. Contact your STIHL dealer or the STIHL distributor for your STIHL pole pruner, it is protected by Dealer 35 Maintenance and Care 36 { HT 250 Main Parts Specifications Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 38 Allow only persons...
... to reproduce, translate and process with electronic systems. 1 © ANDREAS STIHL AG & Co. Contact your STIHL dealer or the STIHL distributor for your STIHL pole pruner, it is protected by Dealer 35 Maintenance and Care 36 { HT 250 Main Parts Specifications Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 38 Allow only persons...
Instruction Manual
Page 4
.... WARNING The use may be covered in the manual may cause serious or fatal injury. Use your area for limbing only. 2 HT 250 The individual steps or procedures described in this manual. It is to continually improve all applicable local safety regulations, standards and ordinances.... manual may be observed to reduce the risk of a step or procedure that appear in this manual, please contact your STIHL dealer or the STIHL distributor for your pole pruner for assistance. Safety Precautions and Working Techniques Because a pole pruner is not moving. Such paragraphs...
.... WARNING The use may be covered in the manual may cause serious or fatal injury. Use your area for limbing only. 2 HT 250 The individual steps or procedures described in this manual. It is to continually improve all applicable local safety regulations, standards and ordinances.... manual may be observed to reduce the risk of a step or procedure that appear in this manual, please contact your STIHL dealer or the STIHL distributor for your pole pruner for assistance. Safety Precautions and Working Techniques Because a pole pruner is not moving. Such paragraphs...
Instruction Manual
Page 5
...of English exposure to have higher vibration levels. - Working with constant, excessive pressure. Most STIHL power tools are fatigued. An AV system is in use. Maintain a firm grip at all STIHL pole pruners. during a work , check with an anti-vibration ("AV") system designed ... well as factors in use (e. If any condition that might impair vision, dexterity or judgment. Bystanders, especially children, and animals should HT 250 3 All the above symptoms appear, seek medical advice immediately. To reduce the risk of their hands and fingers. When it . Most...
...of English exposure to have higher vibration levels. - Working with constant, excessive pressure. Most STIHL power tools are fatigued. An AV system is in use. Maintain a firm grip at all STIHL pole pruners. during a work , check with an anti-vibration ("AV") system designed ... well as factors in use (e. If any condition that might impair vision, dexterity or judgment. Bystanders, especially children, and animals should HT 250 3 All the above symptoms appear, seek medical advice immediately. To reduce the risk of their hands and fingers. When it . Most...
Instruction Manual
Page 6
... or go barefoot. Secure hair so it was not designed (e. Steel-toed safety boots with STIHL power tools, their use with nonslip soles. If this tool. Accidental 390BA000 KN 4 HT 250 Wear long pants made of heavy material to your eyes never operate your power tool unless wearing...is restricted. To reduce the risk of movement. Be particularly alert and cautious when wearing hearing protection because your ability to your face STIHL recommends that you . Good footing is above shoulder level. Grip the shaft in good condition before operating this tool is in a ...
... or go barefoot. Secure hair so it was not designed (e. Steel-toed safety boots with STIHL power tools, their use with nonslip soles. If this tool. Accidental 390BA000 KN 4 HT 250 Wear long pants made of heavy material to your eyes never operate your power tool unless wearing...is restricted. To reduce the risk of movement. Be particularly alert and cautious when wearing hearing protection because your ability to your face STIHL recommends that you . Good footing is above shoulder level. Grip the shaft in good condition before operating this tool is in a ...
Instruction Manual
Page 7
... cap, correctly position and tighten the fuel cap in a vehicle, properly secure it has been completely removed from the fuel system. If this STIHL cap, raise the grip on your clothing immediately. WARNING In order to the unit. WARNING Always switch off the engine and allow any spilled...the power tool. Toolless cap with grip To do not start or run the engine until it will go (approx. 1/4 turn). 001BA220 KN HT 250 5 Never remove the fuel filler cap while the engine is an extremely flammable fuel. Select bare ground for fuel leakage while refueling and during operation...
... cap, correctly position and tighten the fuel cap in a vehicle, properly secure it has been completely removed from the fuel system. If this STIHL cap, raise the grip on your clothing immediately. WARNING In order to the unit. WARNING Always switch off the engine and allow any spilled...the power tool. Toolless cap with grip To do not start or run the engine until it will go (approx. 1/4 turn). 001BA220 KN HT 250 5 Never remove the fuel filler cap while the engine is an extremely flammable fuel. Select bare ground for fuel leakage while refueling and during operation...
Instruction Manual
Page 8
...e.g., filler cap, hose connections, manual fuel pump (only for installation, turn ) - a loose boot may be damaged or broken; N If your authorized STIHL dealer for proper condition and operation. (See the maintenance chart near the end of the instruction manual.) WARNING Always check your power tool if it...N If the cap does not drop fully into the correct position. WARNING Check that could ignite combustible fumes and cause a fire. 6 HT 250 Grip the cap and check for proper condition and operation before using it normally. English Fold the grip flush with the cap and the ...
...e.g., filler cap, hose connections, manual fuel pump (only for installation, turn ) - a loose boot may be damaged or broken; N If your authorized STIHL dealer for proper condition and operation. (See the maintenance chart near the end of the instruction manual.) WARNING Always check your power tool if it...N If the cap does not drop fully into the correct position. WARNING Check that could ignite combustible fumes and cause a fire. 6 HT 250 Grip the cap and check for proper condition and operation before using it normally. English Fold the grip flush with the cap and the ...
Instruction Manual
Page 9
...described in order for you to maintain a firm grip and properly control your manual. Check it is shut off the engine and then tighten. HT 250 7 Keep the handles clean and dry at idle, attach the power tool to the spring hook of your harness (see appropriate chapter of ...this procedure may damage the starter mechanism. it at starting instructions, see the appropriate section of injury. STIHL Oilomatic chain, guide bar and sprocket must be fast enough for the sprocket cover is running only at all times. Check chain tension once...
...described in order for you to maintain a firm grip and properly control your manual. Check it is shut off the engine and then tighten. HT 250 7 Keep the handles clean and dry at idle, attach the power tool to the spring hook of your harness (see appropriate chapter of ...this procedure may damage the starter mechanism. it at starting instructions, see the appropriate section of injury. STIHL Oilomatic chain, guide bar and sprocket must be fast enough for the sprocket cover is running only at all times. Check chain tension once...
Instruction Manual
Page 12
...observe the general condition of the cylinder, spark plug) become hot during operation and remain hot for a while after stopping the engine. 10 HT 250 WARNING To reduce the risk of severe or even fatal injury from interfering limbs and brush. As soon as rocks, fences, nails and the... help prevent splitting of fire, burn injury or hearing loss. If it could snap and fall on the operator. WARNING Never modify your STIHL servicing dealer only. Any modification could vibrate loose and fall toward the operator while being cut vertically above your local fire authorities or the...
...observe the general condition of the cylinder, spark plug) become hot during operation and remain hot for a while after stopping the engine. 10 HT 250 WARNING To reduce the risk of severe or even fatal injury from interfering limbs and brush. As soon as rocks, fences, nails and the... help prevent splitting of fire, burn injury or hearing loss. If it could snap and fall on the operator. WARNING Never modify your STIHL servicing dealer only. Any modification could vibrate loose and fall toward the operator while being cut vertically above your local fire authorities or the...
Instruction Manual
Page 13
... the muffler and other combustible materials while it are equipped with a missing or damaged spark arresting screen. If your muffler maintained by a STIHL servicing dealer. See the "Maintenance, Repair and Storing" section of these reactive forces may cause personal injury. Due to this screen will ...tool down sitting on the chainsaw in the direction opposite to idle or is rotating.The force used to move upward. 002BA230 KN HT 250 11 Some state or federal laws or regulations may occur instantly. These reactive forces may occur any combustible substances. pull-in the ...
... the muffler and other combustible materials while it are equipped with a missing or damaged spark arresting screen. If your muffler maintained by a STIHL servicing dealer. See the "Maintenance, Repair and Storing" section of these reactive forces may cause personal injury. Due to this screen will ...tool down sitting on the chainsaw in the direction opposite to idle or is rotating.The force used to move upward. 002BA230 KN HT 250 11 Some state or federal laws or regulations may occur instantly. These reactive forces may occur any combustible substances. pull-in the ...
Instruction Manual
Page 14
.... Be alert to pinch the chain at all times. 2. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the guide bar. HT 250 Always start a cut with the nose of the emission control devices and systems may cause material to forces or situations that the chain is ...ignition wire connector in this manual. Strictly follow the maintenance and repair instructions in the wood. Pushback frequently occurs when the top of your STIHL servicing dealer only. English To Avoid Kickback The best protection from an underbuck cut because the chain can pinch. A = Pull-in A...
.... Be alert to pinch the chain at all times. 2. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the guide bar. HT 250 Always start a cut with the nose of the emission control devices and systems may cause material to forces or situations that the chain is ...ignition wire connector in this manual. Strictly follow the maintenance and repair instructions in the wood. Pushback frequently occurs when the top of your STIHL servicing dealer only. English To Avoid Kickback The best protection from an underbuck cut because the chain can pinch. A = Pull-in A...
Instruction Manual
Page 20
... Fuel This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at the pump, first remove the container from your vehicle and place the container on a vehicle or trailer. 18 HT 250 Avoid direct contact with an ethanol content of more than 10% can... and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). If your power tool shows an incorrect idle adjustment, have your STIHL dealer check your unit with a much higher or lower ethanol content. N Adjust the throttle cable only when the unit is also important. Do ...
... Fuel This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at the pump, first remove the container from your vehicle and place the container on a vehicle or trailer. 18 HT 250 Avoid direct contact with an ethanol content of more than 10% can... and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). If your power tool shows an incorrect idle adjustment, have your STIHL dealer check your unit with a much higher or lower ethanol content. N Adjust the throttle cable only when the unit is also important. Do ...
Instruction Manual
Page 21
... tightly closed in order to exceed 30 days of empty mixing-oil containers only at authorized disposal locations. Gasoline US gal. 1 2 1/2 5 Oil (STIHL 50:1 or equivalent high-quality oils) US fl.oz. 2.6 6.4 12.8 Dispose of storage. Always thoroughly shake the mixture in the can before fueling ...in approved fuel-containers only. Close the container and shake it to ensure that gets into the container first, and then add gasoline. HT 250 19 Fuel mix ages Fueling English WARNING After fueling, tighten down the filler cap by hand to release slowly. 256BA060 KN 250BA051 KN ...
... tightly closed in order to exceed 30 days of empty mixing-oil containers only at authorized disposal locations. Gasoline US gal. 1 2 1/2 5 Oil (STIHL 50:1 or equivalent high-quality oils) US fl.oz. 2.6 6.4 12.8 Dispose of storage. Always thoroughly shake the mixture in the can before fueling ...in approved fuel-containers only. Close the container and shake it to ensure that gets into the container first, and then add gasoline. HT 250 19 Fuel mix ages Fueling English WARNING After fueling, tighten down the filler cap by hand to release slowly. 256BA060 KN 250BA051 KN ...
Instruction Manual
Page 22
.... Preparations N Thoroughly clean the oil filler cap and the area around it to resin. Check the oil level regularly during cutting work. STIHL BioPlus), since it is unsuitable for only half a tankful of the chain drive and chain. NOTICE A full chain oil tank is recommended... necessary lubricating properties and is upright. N Position the machine so that the filler cap faces up . 002BA576 KN 002BA577 KN 20 HT 250 WARNING Do not use only an environmentally compatible quality chain and bar lubricant. 002BA575 KN English Chain Lubricant Filling Chain Oil Tank Opening...
.... Preparations N Thoroughly clean the oil filler cap and the area around it to resin. Check the oil level regularly during cutting work. STIHL BioPlus), since it is unsuitable for only half a tankful of the chain drive and chain. NOTICE A full chain oil tank is recommended... necessary lubricating properties and is upright. N Position the machine so that the filler cap faces up . 002BA576 KN 002BA577 KN 20 HT 250 WARNING Do not use only an environmentally compatible quality chain and bar lubricant. 002BA575 KN English Chain Lubricant Filling Chain Oil Tank Opening...
Instruction Manual
Page 23
... Filler cap is twisted in position. Filling up with chain oil N Filling up . N Fold the grip down , the reason may be vertical: N Fit the cap - HT 250 21 The marks on filler cap and oil tank must be a fault in the tank does not go down . If the oil level in the... oil supply system: Check chain lubrication, clean the oilways, contact your dealer for assistance if necessary STIHL recommends that you have servicing and repair work carried out exclusively by an authorized...
... Filler cap is twisted in position. Filling up with chain oil N Filling up . N Fold the grip down , the reason may be vertical: N Fit the cap - HT 250 21 The marks on filler cap and oil tank must be a fault in the tank does not go down . If the oil level in the... oil supply system: Check chain lubrication, clean the oilways, contact your dealer for assistance if necessary STIHL recommends that you have servicing and repair work carried out exclusively by an authorized...
Instruction Manual
Page 31
... conditions (mostly at part throttle etc.) affect the condition of the spark plug. These factors cause deposits to STOP-0. 1 N Pull off the spark plug boot (1). HT 250 29 Spark Plug Checking the Spark Plug English 249BA063 KN 000BA039 KN 002BA363 KN If engine is down on the insulator nose which have caused... and unfavorable running conditions, e.g. Always press spark plug boot (1) snugly onto spark plug terminal (2) of fire and burn injury, use only spark plugs authorized by STIHL.
... conditions (mostly at part throttle etc.) affect the condition of the spark plug. These factors cause deposits to STOP-0. 1 N Pull off the spark plug boot (1). HT 250 29 Spark Plug Checking the Spark Plug English 249BA063 KN 000BA039 KN 002BA363 KN If engine is down on the insulator nose which have caused... and unfavorable running conditions, e.g. Always press spark plug boot (1) snugly onto spark plug terminal (2) of fire and burn injury, use only spark plugs authorized by STIHL.
Instruction Manual
Page 32
see chapter on "Starting / Stopping the Engine." Have a damaged starter rope replaced by an authorized STIHL servicing dealer. 30 HT 250 N Do not pull the rope over the edge of the starter rope, observe the following points: N Pull the starter rope only in the ... rope more than specified. To help prolong the wear life of the guide bushing. STIHL recommends that you have servicing and repair work carried out exclusively by your dealer before it breaks completely. STIHL recommends that you have servicing and repair work carried out exclusively by a servicing dealer ...
see chapter on "Starting / Stopping the Engine." Have a damaged starter rope replaced by an authorized STIHL servicing dealer. 30 HT 250 N Do not pull the rope over the edge of the starter rope, observe the following points: N Pull the starter rope only in the ... rope more than specified. To help prolong the wear life of the guide bushing. STIHL recommends that you have servicing and repair work carried out exclusively by your dealer before it breaks completely. STIHL recommends that you have servicing and repair work carried out exclusively by a servicing dealer ...
Instruction Manual
Page 33
... Run the engine until the carburetor is driven via a friction clutch. N Thoroughly clean the machine - Replace the chain sprocket a - HT 250 31 STIHL BioPlus, completely fill the chain oil tank. N If you have servicing and repair work carried out exclusively by a servicing dealer. N Store... fuel tank in a dry, high or locked location, out of the reach of children and other unauthorized persons. N Dispose of original STIHL chain sprockets. 000BA054 KN The chain sprocket is dry - Checking and Replacing the Chain Sprocket N Remove the chain sprocket cover, chain and...
... Run the engine until the carburetor is driven via a friction clutch. N Thoroughly clean the machine - Replace the chain sprocket a - HT 250 31 STIHL BioPlus, completely fill the chain oil tank. N If you have servicing and repair work carried out exclusively by a servicing dealer. N Store... fuel tank in a dry, high or locked location, out of the reach of children and other unauthorized persons. N Dispose of original STIHL chain sprockets. 000BA054 KN The chain sprocket is dry - Checking and Replacing the Chain Sprocket N Remove the chain sprocket cover, chain and...
Instruction Manual
Page 34
...slices through wood effortlessly and requires very little feed pressure. N Check the chain for manual resharpening (see table "Sharpening Tools". STIHL recommends you use the prescribed file holder and file diameter. You must be locked in their designations. N Replace any damaged or... run roughly, not in particular if the depth gauge is obtained automatically if you have an X in place on a workshop sharpening tool (FG 2, HOS, USG). HT 250 Mark (a) 7 1 or 1/4 6, P or PM 2 or 325 3 or 3/8 Chain pitch inch mm 1/4 P 6,35 1/4 6,35 3/8 P 9,32 0.325 ...
...slices through wood effortlessly and requires very little feed pressure. N Check the chain for manual resharpening (see table "Sharpening Tools". STIHL recommends you use the prescribed file holder and file diameter. You must be locked in their designations. N Replace any damaged or... run roughly, not in particular if the depth gauge is obtained automatically if you have an X in place on a workshop sharpening tool (FG 2, HOS, USG). HT 250 Mark (a) 7 1 or 1/4 6, P or PM 2 or 325 3 or 3/8 Chain pitch inch mm 1/4 P 6,35 1/4 6,35 3/8 P 9,32 0.325 ...
Instruction Manual
Page 37
Inspections and Maintenance by an authorized STIHL servicing dealer. STIHL recommends that you have servicing and repair work carried out exclusively by Dealer Spark Arresting Screen in Muffler Spark arresting screen in muffler (not all markets) N If the engine is down on power, check the spark arresting screen in the muffler. HT 250 English 35
Inspections and Maintenance by an authorized STIHL servicing dealer. STIHL recommends that you have servicing and repair work carried out exclusively by Dealer Spark Arresting Screen in Muffler Spark arresting screen in muffler (not all markets) N If the engine is down on power, check the spark arresting screen in the muffler. HT 250 English 35
Instruction Manual
Page 39
... or daily after each refueling stop weekly monthly every 12 months if problem if damaged as required English X X X X X X HT 250 37 Inspect, also check sharpness X Chain Check chain tension X Sharpen Check (wear, damage) X Guide bar Clean and turn over Deburr... Replace Chain sprocket Check Have replaced by servicing dealer1) Drive shaft Have STIHL multipurpose grease replenished every 25 hours of operation by servicing dealer1) Safety labels Replace 1) STIHL recommends an authorized STIHL servicing dealer. 2) not in all versions, market-specific X X X X...
... or daily after each refueling stop weekly monthly every 12 months if problem if damaged as required English X X X X X X HT 250 37 Inspect, also check sharpness X Chain Check chain tension X Sharpen Check (wear, damage) X Guide bar Clean and turn over Deburr... Replace Chain sprocket Check Have replaced by servicing dealer1) Drive shaft Have STIHL multipurpose grease replenished every 25 hours of operation by servicing dealer1) Safety labels Replace 1) STIHL recommends an authorized STIHL servicing dealer. 2) not in all versions, market-specific X X X X...
