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English

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MAINTENANCE

Fuel filter

The fuel filter sits inside the fuel tank.

The fuel tank must be protected from contamination when 
filling. This reduces the risk of operating disturbances 
caused by blockage of the fuel filter located inside the 
tank.

The filter cannot be cleaned but must be replaced with a 
new filter when it is clogged. 

The filter should be 

changed at least once per year.

Air filter

Air filters must be regularly cleaned to remove dust and dirt in 
order to avoid:

Carburettor malfunctions

Starting problems

Loss of engine power

Unnecessary wear to engine parts.

Excessive fuel consumption.

The air filter system consists of an oiled foam plastic filter (1) 
and a paper filter (2):

1

The foam plastic filter is easily accessible under the filter 
cover A. This filter should be checked weekly and 
replaced if necessary. In order to obtain a good filtering 
effect, the filter must be replaced regularly or cleaned and 
oiled. A special HUSQVARNA oil has been produced for 
this purpose.

Remove the foam plastic filter. Wash the filter well in tepid 
soapy water. After cleaning, rinse the filter well in clean 
water. Squeeze out and allow the filter to dry. NOTE! High 
pressure compressed air can damage the foam.

Put the filter in a plastic bag and pour the filter oil over it. 
Knead the plastic bag to distribute the oil. Squeeze the 
excess oil out of the filter inside the plastic bag and pour 
off the excess before fitting the filter to the machine. Never 
use common engine oil. This would drain through the filter 
quite quickly and collect in the bottom.

2

The paper filter is accessible under cover B. This filter 
must be replaced/cleaned when the engine’s power drops 
or after one-two weeks. The filter is cleaned by shaking or 
by careful blowing with compressed air. Note that the filter 
must not be washed.

An air filter that has been in use for a long time cannot be 
cleaned completely. The filter must therefore be replaced with 
a new one at regular intervals. 

A damaged air filter must 

always be replaced.

A

B

IMPORTANT INFORMATION

Poor maintenance of the air filter will cause carbon build-up 
on the spark plug and abnormal wear to engine parts.

Summary of Contents for K1250

Page 1: ...E E E En n n ng g g gl l l li i i is s s sh h h h K950 Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...l fumes and exhaust fumes Always provide for good ventilation WARNING Sparks from the cutting blade can cause fire in combustible materials such as petrol gas wood dry grass etc Noise emission to the environment according to the European Community s Directive The machine s emission is specified in chapter Technical data and on label Switch off the engine by moving the stop switch to the STOP posit...

Page 3: ...working instructions 9 Cutting blades 11 ASSEMBLY Assembling the cutting head 13 Checking the drive axle and flange washers 13 Fitting the cutting blade 13 Guard for the blade 13 FUEL HANDLING Fuel 14 Fuelling 14 STARTING AND STOPPING Starting and stopping 15 MAINTENANCE Tensioning the drive belt 16 Replacing the drive belt 16 Belt pulley and clutch 16 Carburettor 16 Fuel filter 17 Air filter 17 S...

Page 4: ...hrottle lock 5 Choke 6 Throttle lockout 7 Stop switch 8 Cutting head 9 Cutting arm 10 Belt tensioner 11 Cutting blade 12 Throttle control 13 Combination spanner 14 Air filter cover 15 Blade guard spray guard 16 Starter handle 17 Operator s manual 18 Adjustment handle for blade guard 19 Front handle 20 Starter 21 Decompression valve 22 Warning decal 23 Rating plate ...

Page 5: ...commended for the material to be cut Boots with steel toe caps and non slip sole Always have a first aid kit nearby WARNING Under no circumstances may the design of the machine be modified without the permission of the manufacturer Always use genuine accessories Non authorized modifications and or accessories can result in serious personal injury or the death of the operator or others WARNING Use ...

Page 6: ...he handle is released the throttle trigger and the throttle trigger lock both return to their original positions This is controlled by two independent return spring systems This means that the throttle trigger is automatically locked in the idle position Guard for the blade This guard is fitted above the cutting blade and is designed to prevent parts of the blade or cutting fragments from being th...

Page 7: ...rol and check that the cutting blade stops and remains stationary If the cutting blade rotates when the throttle is in the idle position you should check the carburettor s idle adjustment See instructions under the heading Maintenance Checking the blade guard Never use a defective guard or a guard that has not been fitted correctly Check that the guard is complete and without any cracks or deforma...

Page 8: ... care should be taken with abrasive discs Abrasive discs must be stored on a flat level surface If blades are supplied with a backing pad then a spacer should be used to keep them flat If an abrasive disc is stored in humid conditions this can cause imbalance and result in injury Inspect new blades for transport or storage damage Fuel safety Refuelling Fuel mixture Storage Never refuel the machine...

Page 9: ...is of a general character Check information for each blade regarding individual cutting characteristics for example diamond blades requires less feeding pressure than an abrasive discs Support the work piece in such a way that it is possible to predict what will happen and so that the cut remains open while cutting Check that the blade is not in contact with anything when the machine is started Al...

Page 10: ...tting blade to be thrown from an object when the upper quadrant of the blade known as the kickback zone touches an object General rules Never start to cut with the upper quadrant of the blade as shown in the figure also known as the kickback zone Always hold the machine in a firm grip with both hands Hold it so that the thumbs and fingers grip round the handles Keep a good balance and a firm footh...

Page 11: ...contact local authorities and make sure you are following applicable directives Abrasive discs The cutting material on abrasive discs consists of grit bonded using an organic binder Reinforced blades are made up of a fabric or fibre base that prevents total breakage at maximum working speed if the blade should be cracked or damaged A cutting blade s performance is determined by the type and size o...

Page 12: ...g capacity It is used for hard materials such as granite and hard concrete A hard diamond blade has a longer service life and reduced cutting capacity and should be used for soft materials such as brick and asphalt Material Diamond blades are ideal for masonry reinforced concrete and other composite materials Diamond blades are not recommended for cutting metal Diamond blades for wet cutting Diamo...

Page 13: ...mensions of flange washers Fitting the cutting blade Husqvarna cutting blades are manufactured and approved for freehand cutting The paper labels on each side of the blade are there to distribute the pressure from the flange washer and prevent the blade from slipping The blade is placed on the bushing C between the inner flange washer A and the flange washer B The flange washer is turned so that i...

Page 14: ...tart by filling half the amount of the petrol to be used Then add the entire amount of oil Mix shake the fuel mixture Add the remaining amount of petrol Mix shake the fuel mixture thoroughly before filling the machine s fuel tank Do not mix more than one month s supply of fuel at a time If the machine is not used for some time the fuel tank should be emptied and cleaned Fuelling Keep the handle dr...

Page 15: ...ound Never twist the starter cord around your hand Grip the starter handle slowly pull out the cord with your right hand until you feel some resistance the starter pawls grip now quickly and powerfully pull the cord CAUTION Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended This can damage the machine When the engine starts quickly ...

Page 16: ...harmful exhaust emissions after the running in period ask your dealer service workshop who will have a rev counter at their disposal to adjust your carburettor Function The carburettor governs the engine speed via the throttle Air and fuel are mixed in the carburettor Needles The carburettor is equipped with fixed needles to ensure the machine always receives the correct mixture of fuel and air Wh...

Page 17: ...d for this purpose Remove the foam plastic filter Wash the filter well in tepid soapy water After cleaning rinse the filter well in clean water Squeeze out and allow the filter to dry NOTE High pressure compressed air can damage the foam Put the filter in a plastic bag and pour the filter oil over it Knead the plastic bag to distribute the oil Squeeze the excess oil out of the filter inside the pl...

Page 18: ... turned at least a further 1 2 turn when the starter cord is pulled all the way out Changing a broken recoil spring Lift up the starter pulley See instructions under the heading Changing a broken or worn starter cord Remember that the recoil spring is coiled under tension in the starter housing Loosen the bolts holding the spring cassette Remove the recoil spring by tapping the starter with the in...

Page 19: ...recommended spark plug type Use of the wrong spark plug can damage the piston cylinder Cooling system To keep the working temperature as low as possible the machine is equipped with a cooling system The cooling system consists of 1 Air intake on the starter 2 Air guide plate 3 Fins on the flywheel 4 Cooling fins on the cylinder 5 Cylinder cover Clean the cooling system with a brush once a week mor...

Page 20: ...tight 7 Check that the stop switch works correctly Weekly maintenance 8 Check clean or replace the main filter 9 Check that the handles and vibration damping elements are not damaged 10 Clean the spark plug Check that the electrode gap is 0 5 mm 11 Clean the fins on the flywheel Check the starter and the recoil spring 12 Clean the cooling fins on the cylinder 13 Check that the muffler is securely ...

Page 21: ... Spark plug NGK BPMR 7A Electrode gap mm 0 5 Fuel and lubrication system Manufacturer of carburettor Tillotson Carburettor type HS 282A Fuel tank capacity litre 1 0 Weight Power cutter without fuel and cutting blade kg 12 300 mm 9 9 14 350 mm 10 3 16 400 mm 11 2 Noise emissions see note 1 Sound power level measured dB A 116 Sound power level guaranteed LWA dB A 116 Sound levels see note 2 Equivale...

Page 22: ...ex IIA of May 3 1989 relating to electromagnetic compatibility 89 336 EEC and applicable supplements of May 8 2000 relating to the noise emissions in the environment 2000 14 EC Conformity assessment according to Annex V For information relating to noise emissions see the chapter Technical data The following standards have been applied SS EN ISO 12100 2003 EN ISO 55012 2002 EN 1454 ISO 19432 SMP Sv...

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