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Husqvarna K 970 Chain, Operator'S Manual

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Husqvarna K 970 Chain Operator'S Manual Download Page 9

English

 – 9

ASSEMBLY

How to tension the chain

•

If the play between drive link and bar is bigger than 12 
mm, the chain is too loose and must be tightened. 

•

Opening the adjust screw cover.

•

Pull the handle backwards.

•

Continue to move the handle down-wards until you start to 
tension the chain.

•

Hold the bar upwards as you move the handle forward.

•

Lock the chain tension by tightening the counter screw. 

•

Close the adjust screw cover.

A correctly tightened chain should be easy to pull around by 
hand. 

How to change the chain and rim

Turn the bar when replacing the chain for maximum bar life.

>12 mm

!

CAUTION! If the chain has been used and is 
refitted it must be fitted in the same working 
direction as earlier in order to reduce 
segment wear and to obtain full cutting 
capacity directly.

The chain must never be fitted the wrong 
way round. The raker should guide the 
segment at the right height in the cut.

Summary of Contents for K 970 Chain

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 970 Chain Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...d the instructions in the manual before using the machine WARNING Sparks may appear and start a fire when you work with the machine 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 machine refer to specia...

Page 3: ...Glazing 8 Transport and storage 8 ASSEMBLY How to tension the chain 9 How to change the chain and rim 9 Tightening the bar nut 10 FUEL HANDLING General 12 Fuel 12 Fueling 12 Transport and storage 12 OPERATING Protective equipment 13 General safety precautions 13 Transport and storage 17 STARTING AND STOPPING Before starting 18 Starting 18 Stopping 19 MAINTENANCE General 20 Maintenance schedule 20 ...

Page 4: ...s How the machine is to be used and maintained National legislation could regulate the use of this machine Find out what legislation is applicable in the place where you work before you start using the machine The manufacturer s reservation All information and all data in the Operator s Manual were applicable at the time the Operator s Manual was sent to print Husqvarna AB has a policy of continuo...

Page 5: ... Choke 6 Rear handle 7 Cylinder cover 8 Air purge 9 Stop switch 10 Starter handle 11 Starter 12 Decompression valve 13 Hand guard 14 Muffler 15 Chain tensioner handle 16 Bar and chain 17 Counter screw 18 Bar nut 19 Splash guard 20 Fuel cap 21 Water connection with filter 22 Throttle trigger 23 Throttle lockout 24 Rating plate 25 Water connector GARDENA 26 Combination spanner 27 Operator s manual ...

Page 6: ...in rotates when the throttle control 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 Start the engine and make sure the engine stops when you move the stop switch to the stop setting Vibration damping system Your machine is equipped with a vibrati...

Page 7: ... exhaust fumes away from the user Inspecting the muffler Check regularly that the muffler is complete and secured correctly WARNING The engine should be switched off and the stop switch in STOP position WARNING Never use a machine without a muffler or with a faulty muffler A damaged muffler may substantially increase the noise level and the fire hazard Keep fire fighting equipment handy The muffler gets ve...

Page 8: ...metals This will probably result in broken segments or chain breakage The diamond segment can cut reinforced concrete Try to cut the reinforcement together with as much concrete as possible this will save the chain Glazing After cutting extremely hard concrete or stone the diamond segment may lose some or all of its cutting capacity This can also occur if you are forced to cut with a low partial p...

Page 9: ...he chain tension by tightening the counter screw Close the adjust screw cover A correctly tightened chain should be easy to pull around by hand How to change the chain and rim Turn the bar when replacing the chain for maximum bar life 12 mm CAUTION If the chain has been used and is refitted it must be fitted in the same working direction as earlier in order to reduce segment wear and to obtain full ...

Page 10: ...s the cup guard o ring and the drive sprocket Assemble the parts in the reverse order Tightening the bar nut If the bar and chain tensioner handle feel loose the bar nut must be tightened to achieve the correct tension moment in the nut This so that the bar does not fit loosely IMPORTANT During all reassembling make sure that the outer cover fits in to the inner cover the covers may be damaged other...

Page 11: ... spring on the chain tensioner handle and turn the bar nut clockwise by hand Release the spring Hold the bar upwards as you move the handle forward Note that the arm s mechanical stop shall not be reached The stop prevents the arm from pointing forwards and prevents cutting ...

Page 12: ...l cap and fuel lines Transport and storage Store and transport the machine and fuel so that there is no risk of any leakage or fumes coming into contact with sparks or naked flames for example from electrical machinery electric motors electrical relays switches or boilers When storing and transporting fuel always use approved containers intended for this purpose Long term storage When storing the m...

Page 13: ...nders 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 can result in permanent hearing impairment So always use approved hearing protection Listen out for warning signals or shouts when you are wearing hearing protection Alway...

Page 14: ...ng concrete brick and different stone materials All other use is improper Maintain a safe distance from the cutting chain when the engine is running Do not move the machine when the cutting equipment is rotating Take care when using your saw and make sure the kickback zone of the bar never touches any object See instructions under the heading Kickback Keep a good balance and a firm foothold Never c...

Page 15: ...entire line using the lower section of the tip of the bar Go back and cut another few centimetres Repeat until a depth of between 5 10 centimetres is reached depending on precision demands and the thickness of the object The pilot cut guides the bar straight during continued cutting which takes place according to the plunge cut method until full depth is reached use a rubber block as a break point...

Page 16: ...d pinch the cutting equipment Pinching kickback Pinching is when the cut closes and pinches the cutting equipment If the cutting equipment is pinched or stalled the reactive force will be strong and you might not be able to control the machine If the cutting equipment is pinched or stalled in the kickback zone the reactive force will push the machine up and back towards the user in a rotating moti...

Page 17: ...n order to avoid transport damage and accidents Store the equipment in a lockable area so that it is out of reach of children and unauthorized persons For transport and storage of diamond chains see the section Diamond chains For transport and storage of fuel see the section Fuel handling ...

Page 18: ...ndle with your left hand Put your right foot on the lower section of the rear 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...

Page 19: ...engage fast idle Stopping Stop the engine by moving the stop switch STOP to the right CAUTION The chain continues to rotate up to a minute after the motor has stopped Chain coasting Make sure that the chain can rotate freely until it is completely stopped Carelessness can result in serious personal injury ...

Page 20: ... carried 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 o...

Page 21: ... does not help contact an authorised service workshop Adjusting the idle speed Start the engine and check the idling setting If the carburettor setting is correct the diamond chain shall stand still at idle speed Adjust the idle speed using the T screw Turn the idle speed screw clockwise until the chain starts to rotate Now turn the screw anti clockwise until the chain stops rotating A correctly a...

Page 22: ... 3 times clockwise around the centre of the starter pulley Now pull the starter handle and in doing so tension the spring Repeat the procedure once more but this time with four turns Note that the starter handle is drawn to its correct home position after tensioning the spring Check that the spring is not drawn to its end position by pulling out the starter line fully Slow the starter pulley with ...

Page 23: ...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 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 ...

Page 24: ...ergy total for vibration levels under various working conditions Reported data for equivalent vibration level has a typical statistical dispersion standard deviation of 1 m s2 Cutting equipment Engine K 970 Chain Cylinder displacement cm3 93 6 Cylinder bore mm 56 Stroke mm 38 Idle speed rpm 2700 Recommended max speed rpm 9300 150 Power kW rpm 4 8 9000 Ignition system Manufacturer of ignition syste...

Page 25: ...y 17 2006 relating to machinery 2006 42 EC of December 15 2004 relating to electromagnetic compatibility 2004 108 EC 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 EN ISO 12100 2010 CISPR 12 2007 EN ISO 19432 20...

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Page 28: ... z Td6 63 2012 01 18 z Td6 63 1152682 26 Original instructions rev 2 ...

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