Husqvarna K 760 OilGuard Operator'S Manual Download Page 26 | Manualshive

Page: 26 / 32

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26 –

English

MAINTENANCE

Air filter

The air filter only needs to be checked if the engine drops in
power.

•

Loosen the screws. Remove the air filter cover.

•

Check the air filter and replace if necessary.

Replacing the air filter

•

Loosen the screws. Remove the cover.

•

Replace the air filter.

Drive gear, clutch

•

Check the clutch centre, drive gear and clutch spring for
wear.

NOTICE! The air filter must not be cleaned or blown clean
with compressed air. This will damage the filter.

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Summary of Contents for K 760 OilGuard

Page 1: ...E E E En n n ng g g gl l l li i i is s s sh h h h K 760 K 760 Rescue Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...the manual before using the machine WARNING Sparks from the cutting blade can cause fire in combustible materials such as petrol gas wood dry grass etc Choke Air purge Decompression valve Refuelling petrol oil mix 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 Other symbols decals on the m...

Page 3: ... 10 ASSEMBLING AND ADJUSTMENTS General 11 Checking the drive shaft and flange washers 11 Checking the bushing 11 Checking the direction of the blade rotation 11 Fitting the cutting blade 11 Blade guard 11 Disengaging OilGuard 12 Reversible cutting head 12 FUEL HANDLING General 13 Fuel 13 Fuelling 14 Transport and storage 14 OilGuard 14 OPERATING Protective equipment 15 General safety precautions 1...

Page 4: ...tor s Manual were applicable at the time the Operator s Manual was sent to print Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice Features Values such as high performance reliability innovative technology advanced technical solutions and environmental considerations distinguish Husqvarn...

Page 5: ...Stop switch 11 Disconnection function for OilGuard K760 OilGuard 12 Starter handle 13 Starter 14 Muffler 15 Adjustment handle for guard 16 Blade guard 17 Decompression valve 18 Air purge 19 Fuel cap 20 Water connection with filter 21 Belt guard 22 Cutting arm 23 Rating plate 24 Belt tensioner 25 Cutting head 26 Cutting blade 27 Combination spanner 28 Bushing decal 29 Water connector GARDENA 30 Ope...

Page 6: ...rottle lockout 7 Throttle control 8 Start throttle lock 9 Stop switch 10 Disconnection function for OilGuard K760 OilGuard 11 Starter handle 12 Starter 13 Muffler 14 Adjustment handle for guard 15 Blade guard 16 Decompression valve 17 Air purge 18 Fuel cap 19 Harness 20 Belt guard 21 Cutting arm 22 Rating plate 23 Belt tensioner 24 Cutting head 25 Cutting blade 26 Combination spanner 27 Bushing de...

Page 7: ... work properly Start the power cutter and apply full throttle Release the throttle control 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 in the section Maintenance Stop switch Use the stop switch to switch off the engine Checking the stop switch...

Page 8: ... the user Inspecting the muffler Check regularly that the muffler is complete and secured correctly WARNING Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation Contact your doctor if you experience symptoms of overexposure to vibration Such symptoms include numbness loss of feeling tingling pricking pain loss of strength changes in skin ...

Page 9: ...op the vibration Otherwise replace the blade Abrasive blades The cutting material on abrasive blades 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 of abrasive corn and the type and ...

Page 10: ...very 30 60 seconds and let it rotate in the air for 10 seconds to let it cool If this is not done the blade may be overheated Diamond blades for wet cutting Diamond blades for wet cutting must be water cooled If this is not done the blade may be overheated Water cooling cools the blade and increases its service life while also reducing the formation of dust Toothed blades carbide tipped blades and...

Page 11: ...nds with the centre hole of the cutting blade The blades are marked with the diameter of the centre hole Checking the direction of the blade rotation When using diamond blades make sure that it rotates in the direction indicated by the arrow on the blade The direction of rotation for the machine is shown by arrows on the cutting arm Fitting the cutting blade The blade is placed on the bushing A be...

Page 12: ...ng head allowing cutting close to a wall or at ground level restricted only by the thickness of the blade guard There is an increased risk for kickback when cutting with the cutting head reversed The cutting blade is further away for the centre of the machine which means the handle and the cutting blade are no longer in alignment It is more difficult to restrain the machine if the blade gets jamme...

Page 13: ...el 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 Mixing ratio K760 1 50 2 with HUSQVARNA two stroke oil or equivalent 1 33 3 with oils class JASO FB or ISO EGB formulated for air cooled two stroke engines Mixing ratio K760 OilGuard 1 50 2 with HUSQVARNA OilGuard oil W...

Page 14: ...e of excess fuel OilGuard K760 OilGuard Machines fitted with OilGuard have a built in system for identifying incorrect fuel mixtures Once the machine is running a detector reads the fuel quality which takes about ten seconds If the correct amount of Husqvarna OilGuard oil has been used the machine will run at a normal speed If the wrong type of oil has been used the machine senses this and restric...

Page 15: ...ek expert advice Contact your dealer service agent or an experienced user Do not attempt any task that you feel unsure of WARNING The use of products such as cutters grinders drills that sand or form material can generate dust and vapours which may contain hazardous chemicals Check the nature of the material you intend to process and use an appropriate breathing mask Long term exposure to noise ca...

Page 16: ...supervised with the motor running Never move the machine when the cutting equipment is rotating The machine is equipped with a friction retarder to shorten the stop time The guard for the cutting equipment should be adjusted so that the rear section is flush with the work piece Spatter and sparks from the material being cut are then collected up by the guard and led away from the user The guards f...

Page 17: ...ume of water required varies depending on the type of job at hand If water hoses loosen from their supply sources this indicates that the machine is connected to a water pressure that is too high See instructions under the Technical data heading for recommended water pressure Cutting with toothed carbide tipped blades during rescue operaions If the public safety force fire department that purchase...

Page 18: ...When cutting in hard materials carbide tipped blades will rapidly lose its sharpness For best performance during rescue operations we recommend that a new blade be installed Kickback Kickback is the sudden upward motion that can occur if the blade is pinched or stalled in the kickback zone Most kickbacks are small and pose little danger However a kickback can also be very violent and throw the pow...

Page 19: ...hrough out the cut the blade might be pinched in the kickback zone and cause a severe kickback How to aviod kickback Avoiding kickback is simple The work piece must always be supported so that the cut stays open when cutting through When the cut opens there is no kickback If the cut closes and pinches the blade ther is always a risk of kickback Take care when inserting the blade in an existing cut...

Page 20: ...ear handle pressing the machine against the ground 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 With a cold engine The machine stops when the engine fires becase the chokel control is pulled out Press the choke control and the decompr...

Page 21: ...the stop switch STOP to the right CAUTION The cutting blade continues to rotate up to a minute after the motor has stopped Blade coasting Make sure that the cutting blade can rotate freely until it is completely stopped Carelessness can result in serious personal injury ...

Page 22: ...out by an authorized service workshop The engine should be switched off and the stop switch in STOP position Wear personal protective equipment See instructions under the heading Personal protective equipment The life span of the machine can be reduced and the risk of accidents can increase if machine maintenance is not carried out correctly and if service and or repairs are not carried out profes...

Page 23: ...elt For correct tensioning of the drive belt the square nut should be positioned opposite the marking on the belt cover Tensioning the drive belt The tension of a new drive belt must be readjusted after one or two tanks of fuel have been used When the machine is equipped with a friction retarder a scraping sound can be heard from the bearing housing when the blade is turned by hand This is quite n...

Page 24: ...ment is necessary first turn the screw clockwise until the blade starts to rotate Now turn the screw anti clockwise until the blade stops rotating Rec idle speed 2700 rpm Starter Changing a broken or worn starter cord Loosen the screws that hold the starter against the crankcase and remove the starter Pull the cord out about 30 cm and lift it into the cut out in the periphery of the starter pulley...

Page 25: ...alf turn Changing a broken recoil spring Undo the bolt in the centre of the pulley and remove the pulley Bear in mind that the return spring lies tensioned in the starter housing Loosen the bolts holding the spring cassette Remove the recoil spring by turning the starter over and loosen the hooks with the help of a screwdriver The hooks hold the return spring assembly on the starter Lubricate the ...

Page 26: ...e air filter cover Check the air filter and replace if necessary Replacing the air filter Loosen the screws Remove the cover Replace the air filter Drive gear clutch Check the clutch centre drive gear and clutch spring for wear NOTICE The air filter must not be cleaned or blown clean with compressed air This will damage the filter ...

Page 27: ...d data for equivalent vibration level has a typical statistical dispersion standard deviation of 1 m s2 Cutting equipment Engine K 760 K 760 Rescue Cylinder displacement cm3 74 Cylinder bore mm 51 Stroke mm 36 Idle speed rpm 2700 Max fast idle speed rpm 9300 150 Power kW rpm 3 7 9000 Ignition system Manufacturer of ignition system SEM Type of ignition system CD Spark plug Champion RCJ 6Y NGK BPMR ...

Page 28: ...noise emissions see the chapter Technical data The following standards have been applied EN ISO 12100 2003 CISPR 12 2007 EN ISO 19432 2008 Notified body SMP Svensk Maskinprovning AB Fyrisborgsgatan 3 SE 754 50 Uppsala Sweden has performed voluntary type examination in accordance with the machinery directive 2006 42 EC on behalf of Husqvarna AB The certificate has the number SEC 10 2285 In addition...

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Page 32: ... z V 6 2011 01 24 z V 6 1154103 26 Original instructions ...

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