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FT 250

English

26

N

Carry out the standard setting.

N

Warm up the engine.

N

Turn high speed screw (H) slightly 

clockwise (leaner) – no further than 

stop.

NOTICE

After returning from high altitude, reset 

the carburetor to the standard setting.
If the setting is too lean there is a risk of 

engine damage due to insufficient 

lubrication and overheating.

N

If the engine is down on power, 

difficult to start or runs poorly at idle 

speed, first check the spark plug.

N

Fit a new spark plug after about 100 

operating hours – or sooner if the 

electrodes are badly eroded. Install 

only suppressed spark plugs of the 

type approved by STIHL – see 

"Specifications".

Removing the Spark Plug

N

Turn off the engine.

N

Pull off the spark plug boot (1).

N

Unscrew the spark plug.

Checking the Spark Plug

N

Clean dirty spark plug.

N

Check electrode gap (A) and 

readjust if necessary – see 

"Specifications".

N

Rectify the problems which have 

caused fouling of the spark plug.

Possible causes are:

–

Too much oil in fuel mix.

–

Dirty air filter.

–

Unfavorable running conditions.

WARNING

Arcing may occur if the adapter nut (1) is 

loose or missing. Working in an easily 

combustible or explosive atmosphere 

may cause a fire or an explosion. This 

can result result in serious injuries or 

damage to property.

Spark Plug

250BA054 KN

000BA039 KN

A

1

000BA045 KN

Содержание FT 250

Страница 1: ... STIHL FT 250 Instruction Manual ...

Страница 2: ......

Страница 3: ...s product Your Dr Nikolas Stihl Guide to Using this Manual 2 Safety Precautions and Working Techniques 2 Using the Unit 9 Approved Combinations of Cutting Attachment Deflector Limit Stop and Harness 10 Mounting the Bike Handle 11 Adjusting the Throttle Cable 12 Fitting Padding 13 Mounting the Deflector 13 Mounting the Cutting Attachment 13 Fuel 15 Fueling 16 Fitting the Harness 17 Starting Stoppin...

Страница 4: ...you how to operate your machine or attend a special course in its operation Minors should never be allowed to use a power tool Keep bystanders especially children and animals away from the work area When the power tool is not in use shut it off so that it does not endanger others Secure it against unauthorized use The user is responsible for avoiding injury to third parties or damage to their prop...

Страница 5: ...formance requirements Never attempt to modify your machine in any way since this may increase the risk of personal injury STIHL excludes all liability for personal injury and damage to property caused while using unauthorized attachments Do not use a pressure washer to clean the unit The solid jet of water may damage parts of the unit The deflector on this power tool cannot protect the operator fr...

Страница 6: ...manual fuel pump on machines so equipped If there are any leaks or damage do not start the engine risk of fire Have your machine repaired by a servicing dealer before using it again Use only an approved combination of cutting attachment deflector handle and harness All parts must be assembled properly and securely Slide control stop switch must move easily to STOP or 0 Smooth action of throttle tr...

Страница 7: ...have good balance and secure footing In the event of impending danger or in an emergency switch off the engine immediately by moving the slide control stop switch to STOP or 0 The cutting attachment may catch and fling objects a great distance and cause injury therefore do not allow any other persons within a radius of 15 meters of your own position To reduce the risk of damage to property also ma...

Страница 8: ...icular for leaks and make sure the safety devices are working properly Do not continue operating your power tool if it is damaged In case of doubt consult your servicing dealer Do not operate your power tool in the starting throttle position engine speed cannot be controlled in this position Special care must be taken when working in difficult over grown terrain When cutting high scrub under bushe...

Страница 9: ...it the operator or bystanders at high speed and result in serious or fatal injuries To reduce the above mentioned risks when using a metal cutting attachment never use a metal cutting attachment with a diameter larger than specified It must not be too heavy It must be manufactured from materials of adequate quality and its geometry must be correct shape thickness To reduce the risk of injury a met...

Страница 10: ...k the condition of the muffler To reduce the risk of fire and damage to hearing do not operate your machine if the muffler is damaged or missing Do not touch a hot muffler since burn injury will result Vibration behavior is influenced by the condition of the AV elements check the AV elements at regular intervals For safety reasons the tea plant pruner may only be operated with the following cuttin...

Страница 11: ...training STIHL recommends that you use the non shaded area of the circular saw blade Always start the cut with this area of the blade Use your tea plant pruner only for cutting and pruning tea bushes Preparations N To reduce the risk of accidents or injury remove all obstacles and objects from the work area N Before starting cutting work scare away small animals to ensure they are not injured N Pu...

Страница 12: ...d risk of accidents Metal cutting attachment 1 Circular saw blade 250 100 scratcher tooth 250 mm dia Deflector Limit Stop 2 Limit stop for circular saw blades 250 Shoulder Strap 3 Shoulder strap with 1 carabiner 4 Shoulder strap with 2 carabiners Approved Combinations of Cutting Attachment Deflector Limit Stop and Harness Cutting Attachment Deflector Limit Stop Shoulder Strap 681BA261 KN 1 2 3 4 ...

Страница 13: ...e support the rubber handle 7 must be on the left viewed from the engine N Place the clamp 8 on the handle support and handlebar N Insert the screws 9 through the holes in the parts and screw them into the lower clamp 2 do not finally tighten yet Lining up the handlebar N Secure the handlebar 1 on the drive tube 2 about 43 cm 17 in A from the engine N Line up the handlebar and tighten down the scr...

Страница 14: ...he throttle cable N Check adjustment of throttle cable see chapter on Adjusting the Throttle Cable A properly adjusted throttle cable is the precondition for correct operation in the full throttle starting throttle and idle positions Adjust the throttle cable only after the unit is fully assembled the control handle must be in the normal operating position N Use a suitable tool to push the slide t...

Страница 15: ...top 1 on the gearhead flange N Fit the three M6 x 14 mm screws 2 provided and tighten them down firmly Placing power tool on the ground N Shut off the engine N Lay your power tool on its back so that the cutting attachment mounting face is pointing up Blocking the Shaft The drive shaft must be blocked with the stop pin to mount and remove the cutting attachment The stop pin is included with the ma...

Страница 16: ...ng of the metal cutting attachment in a safe place WARNING Wear protective gloves to reduce the risk of direct contact with the sharp cutting edges Mount only one metal cutting attachment Mounting the cutting attachment N Place the circular saw blade 8 in position check direction of saw teeth magnified view WARNING Collar of thrust plate arrows must engage the cutting attachment s mounting hole Se...

Страница 17: ...the engine Poor quality gasoline or engine oil may damage the engine sealing rings hoses and the fuel tank Gasoline Use only high quality brand name gasoline with a minimum octane rating of 90 leaded or unleaded If your machine is equipped with a catalytic converter you must use unleaded gasoline NOTICE A few tankfuls of leaded gasoline will greatly reduce the efficiency of the catalytic converter...

Страница 18: ...ure in the canister before fueling your machine WARNING Pressure may build up in the canister open it carefully N Clean the fuel tank and canister from time to time Dispose of remaining fuel and cleaning fluid properly in accordance with local regulations and environmental requirements Preparations N Before fueling clean the filler cap and the area around it to ensure that no dirt falls into the t...

Страница 19: ...se it is specifically designed to match the machine and the application and ensure ergonomic operation Shoulder Strap with 2 Carabiners included with machine Attaching the shoulder strap N Attach both carabiners 1 to the two carrying rings 2 on the drive tube Putting on shoulder strap with machine N Grip the handle support with your right hand and lift the machine N Pull the shoulder strap over yo...

Страница 20: ... Lift the strap off your left shoulder and over your head with your left hand Shoulder Strap with 1 Carabiner special accessory The shoulder strap with 1 carabiner requires a carrying ring between the handle support and padding Use either the front carrying ring or an additional carrying ring available as special accessory Fitting the carrying ring N Place the clamp 1 against the drive tube with t...

Страница 21: ...osen the screw 3 N Slide the carrying ring 2 along the drive tube N Tighten the screw moderately N Let the machine go until it is balanced then check the floating position When the correct floating position has been reached N Tighten down the screw on the carrying ring firmly Disconnecting machine from shoulder strap N Press down the bar on the carabiner 1 and pull the carrying ring 2 out of the c...

Страница 22: ...Symbol on slide control 7 h stop symbol and arrow To stop the engine push the slide control in the direction of the arrow on the stop symbol h to STOP 0 Starting N Press down the trigger lockout lever and squeeze the throttle trigger N and hold them in that position N Move the slide control to START and hold it there N Now release the throttle trigger slide control and trigger lockout in that orde...

Страница 23: ...g NOTICE Do not stand or kneel on the drive tube N Hold the starter grip with your right hand N Pull the starter grip slowly until you feel it engage and then give it a brisk strong pull NOTICE Do not pull out the starter rope all the way it might otherwise break N Do not let the starter grip snap back Guide it slowly back into the housing so that the starter rope can rewind properly N Continue cr...

Страница 24: ...bol h to STOP 0 N Remove the spark plug see Spark Plug N Dry the spark plug N Open the throttle wide N Crank the engine several times with the starter to clear the combustion chamber N Refit the spark plug see Spark Plug N Move the slide control to START N Set the choke knob to e even if the engine is cold N Start the engine Throttle Cable Adjustment N Check adjustment of throttle cable see chapte...

Страница 25: ...eration After a long period of full throttle operation allow the engine to run for a short while at idle speed so that engine heat can be dissipated by the flow of cooling air This protects engine mounted components ignition carburetor from thermal overload After Finishing Work Storing for a short period Wait for the engine to cool down Empty the fuel tank and keep the machine in a dry place well ...

Страница 26: ...if damaged N Wash the foam filter in STIHL special cleaner or a clean non flammable solution e g warm soapy water and then dry N Coat dry foam filter uniformly with STIHL or Oelheld air filter oil see Special Accessories and knead it gently Repeat the process as necessary until oil drips from the filter New foam filters come impregnated with filter oil N Fit the foam filter in the filter cover N R...

Страница 27: ...he saw blade must not rotate Circular saw blade rotates when engine is idling N Turn the idle speed screw LA counterclockwise until the saw blade stops rotating and then turn the screw another 1 2 to 1 full turn in the same direction WARNING If the saw blade continues to rotate when the engine is idling have your machine checked and repaired by your servicing dealer Erratic idling behavior poor ac...

Страница 28: ...roded Install only suppressed spark plugs of the type approved by STIHL see Specifications Removing the Spark Plug N Turn off the engine N Pull off the spark plug boot 1 N Unscrew the spark plug Checking the Spark Plug N Clean dirty spark plug N Check electrode gap A and readjust if necessary see Specifications N Rectify the problems which have caused fouling of the spark plug Possible causes are ...

Страница 29: ...n carbonization STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer N Check the grease level regularly about every 25 hours of operation N Unscrew the filler plug 1 If no grease can be seen on the inside of the filler plug screw the tube 2 of STIHL gear lubricant special accessory into the filler hole N Squeeze up to 5 g grease i...

Страница 30: ...knot in the new rope and then thread it through the top of the grip and the rope bushing 6 N Refit the cap in the grip N Thread the rope through the rotor and secure it with a simple overhand knot N Coat the rope rotor bearing bore with non resinous oil N Slip the rotor over the starter post turn it back and forth to engage the anchor loop of the rewind spring N Fit the pawl 4 N Fit the washer 3 N...

Страница 31: ... of injury Wear a face shield and work gloves N Take out the screws 7 N Remove the spring housing and pieces of spring N Lubricate the new ready to fit replacement spring in the new spring housing with a few drops of resin free oil N Place the replacement spring with spring housing in position bottom plate facing up If the spring pops out and uncoils refit it in the clockwise direction starting ou...

Страница 32: ...e pickup body in the tank Maintenance Work STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer Antivibration Element A vibration absorbing rubber element is installed between the powerhead and the drive tube Have it checked if there are signs of wear or a noticeable increase in vibration levels Sharpening Metal Cutting Blades 002...

Страница 33: ...andle Check operation X X Air filter synthetic fabric filter Visual Inspection X X Clean X Replace X X Air filter paper filter Visual inspection X X Replace1 X Manual fuel pump if fitted Check X Have repaired by servicing dealer2 X Pickup body in fuel tank Check X Replace X X X Fuel tank Clean X X X Carburetor Check idle adjustment the cutting attachment must not rotate X X Adjust idle speed X Spa...

Страница 34: ...e X 1 Only if there is a noticeable loss of engine power 2 STIHL recommends an authorized STIHL servicing dealer The following intervals apply to normal operating conditions only If your daily work ing time is longer or operating conditions are difficult very dusty work area etc shorten the specified intervals accordingly before starting work after finishing work or daily after each refueling stop...

Страница 35: ...t you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information If these maintenance operations are not carried out as specified the user assumes responsibility for any damage that may occur Among other parts this includes Damag...

Страница 36: ...gger 8 Slide control 9 Throttle trigger lockout 10 Carrying ring 11 Throttle cable retainer 12 Padding 13 Manual fuel pump 14 Choke knob 15 Air filter cover 16 Fuel tank 17 Machine support 18 Handle support 19 Metal cutting attachment 20 Limit stop Serial number Main Parts 13 14 262BA059 KN 17 18 11 11 6 7 8 9 15 1 2 3 4 5 16 19 20 10 12 10 ...

Страница 37: ... use replacement parts which have been approved by STIHL for this power tool or are technically identical Only use high quality replacement parts in order to avoid the risk of accidents and damage to the machine STIHL recommends the use of original STIHL replacement parts Original STIHL parts can be identified by the STIHL part number the logo and the STIHL parts symbol K the symbol may appear alo...

Страница 38: ...regulations STIHL products must not be thrown in the garbage can Take the product accessories and packaging to an approved disposal site for environment friendly recycling Contact your STIHL servicing dealer for the latest information on waste disposal Disposal 000BA073 KN ...

Страница 39: ......

Страница 40: ...www stihl com 04582620121B 0458 262 0121 B 0458 262 0121 B englisch G ...

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