Husqvarna 281XP, 288XP, Operator'S Manual

Page 1: ...E E E En n n ng g g gl l l li i i is s s sh h h h 281XP 288XP Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...hnical data and on label Other symbols decals on the machine refer to special certification requirements for certain markets Symbols in the operator s manual Switch off the engine by moving the stop switch to the STOP position before carrying out any checks or maintenance Always wear approved protective gloves Regular cleaning is required Visual check Protective goggles or a visor must be worn Ref...

Page 3: ...5 FUEL HANDLING Fuel 16 Fuelling 17 Fuel safety 17 STARTING AND STOPPING Starting and stopping 18 WORKING TECHNIQUES Before use 20 General working instructions 20 How to avoid kickback 27 MAINTENANCE Carburettor 28 Checking maintaining and servicing chain saw safety equipment 29 Muffler 31 Starter 32 Air filter 33 Spark plug 33 Lubricating the bar tip sprocket 33 Needle bearing lubrication 33 Adju...

Page 4: ...ndustry Husqvarna s aim is also to be in the front edge according to ergonomics usability security and environmental protection That is the reason why we have developed many different features to provide our products within these areas We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very long time to come The purchase of one of our...

Page 5: ...off switch 11 Fuel tank 12 Muffler 13 Bar tip sprocket 14 Chain 15 Bar 16 Spike bumper 17 Chain catcher Catches chain if it jumps or breaks 18 Clutch cover 19 Right hand guard Protects right hand if chain breaks or jumps 20 Throttle control 21 Throttle lock Prevents accidental operation of throttle control 22 Decompression valve 288XP 23 Combination spanner 24 Chain tensioning screw 25 Operator s ...

Page 6: ...f this operator s manual WARNING The inside of the muffler contain chemicals that may be carcinogenic Avoid contact with these elements in the event of a damaged muffler WARNING Long term inhalation of the engine s exhaust fumes chain oil mist and dust from sawdust can represent a health risk IMPORTANT The machine is only designed for cutting wood You should only use the saw with the bar and chain...

Page 7: ...and if service and or repairs are not carried out professionally If you need further information please contact your nearest service workshop Chain brake and front hand guard Your chain saw is equipped with a chain brake that is designed to stop the chain if you get a kickback The chain brake reduces the risk of accidents but only you can prevent them Take care when using your saw and make sure th...

Page 8: ...kickback zone of the bar is farthest away from you the chain brake is designed to be activated by the inertia in the kickback direction If the kickback is less violent or the kickback zone of the bar is closer to you the chain brake will be activated manually by the movement of your left hand In the felling position the left hand is in a position that makes manual activation of the chain brake imp...

Page 9: ...etting Chain catcher The chain catcher is designed to catch the chain if it snaps or jumps off This should not happen if the chain is properly tensioned see instructions under the heading Assembly and if the bar and chain are properly serviced and maintained see instructions under the heading General working instructions Right hand guard Apart from protecting your hand if the chain jumps or snaps ...

Page 10: ... sure that the kickback zone of the bar never touches anything By using cutting equipment with built in kickback reduction and keeping the chain sharp and well maintained you can reduce the effects of kickback Bar The smaller the tip radius the lower the chance of kickback Chain A chain is made up of a number of links which are available in standard and low kickback versions Some terms that descri...

Page 11: ...to exert more pressure to force the bar through the wood and the chips will be very small If the chain is very blunt it will produce wood powder and no chips or shavings A sharp chain eats its way through the wood and produces long thick chips or shavings The cutting part of the chain is called the cutter and consists of a cutting tooth A and the depth gauge B The cutters cutting depth is determin...

Page 12: ... We recommend that you adjust the depth gauge setting every third time you sharpen the cutting teeth NOTE This recommendation assumes that the length of the cutting teeth is not reduced excessively You will need a flat file and a depth gauge tool We recommend that you use our depth gauge tool to acheive the correct depth gauge setting and bevel for the depth gauge Place the depth gauge tool over t...

Page 13: ...so that the fuel runs out before the saw chain oil However this safety feature requires that you use the right sort of chain oil if the oil is too thin it will run out before the fuel and that you adjust the carburetor as recommended a lean mixture may mean that the fuel lasts longer than the oil and that you also use the recommended cutting equipment a bar that is too long will use more chain oil...

Page 14: ...to only 4 mm the chain must be replaced Bar Check regularly Whether there are burrs on the edges of the bar Remove these with a file if necessary Whether the groove in the bar has become badly worn Replace the bar if necessary Whether the tip of the bar is uneven or badly worn If a hollow forms on the underside of the bar tip this is due to running with a slack chain To prolong the life of the bar...

Page 15: ... correctly over the drive sprocket and that the chain is correctly located in the groove in the bar Tighten the bar nuts finger tight Tension the chain by turning the chain tensioning screw clockwise using the combination spanner The chain should be tensioned until it does not sag from the underside of the bar The chain is correctly tensioned when it does not sag from the underside of the bar but ...

Page 16: ...roke oil For best results and performance use HUSQVARNA two stroke engine oil which is specially formulated for our air cooled two stroke engines Never use two stroke oil intended for water cooled engines sometimes referred to as outboard oil rated TCW Never use oil intended for four stroke engines A poor oil quality and or too high oil fuel ratio may jeopardise function and decrease the life time...

Page 17: ...er designed for that purpose For longer periods of storage or for transport of the chain saw the fuel and chain oil tanks should be emptied Ask where you can dispose of waste fuel and chain oil at your local petrol station Ensure the machine is cleaned and that a complete service is carried out before long term storage The bar guard must always be fitted to the cutting attachment when the machine ...

Page 18: ...arter handle with your right hand and pull out the starter cord slowly until you feel a resistance as the starter pawls engage then pull firmly and rapidly Never twist the starter cord around your hand As the chain brake is still engaged the speed of the engine must be set to idling as soon as possible this is achieved by quickly disengaging the throttle lock This prevents unnecessary wear to the ...

Page 19: ...s very dangerous because you may lose control of the saw Never start the machine indoors Exhaust fumes can be dangerous if inhaled Observe your surroundings and make sure that there is no risk of people or animals coming into contact with the cutting equipment Always hold the saw with both hands The right hand should be on the rear handle and the left hand on the front handle All people whether ri...

Page 20: ...ictable felling direction etc 3 Take great care when removing small branches and avoid cutting bushes i e cutting many small branches at the same time Small branches can be grabbed by the chain and thrown back at you causing serious injury 4 Make sure you can move and stand safely Check the area around you for possible obstacles roots rocks branches ditches etc in case you have to move suddenly Ta...

Page 21: ...d the handles You should use this grip whether you are right handed or left handed This grip minimises the effect of kickback and lets you keep the chain saw under control Do not let go of the handles 3 Most kickback accidents happen during limbing Make sure you are standing firmly and that there is nothing in the way that might make you trip or lose your balance Lack of concentration can lead to ...

Page 22: ...om below Cutting on the push stroke Cutting on the push stroke increases the risk of kickback See instructions under the heading How to avoid kickback Terms Cutting General term for cutting through wood Limbing Cutting branches off a felled tree Splitting When the object you are cutting breaks off before the cut is complete There are five important factors you should consider before making a cut 1...

Page 23: ... all the way through the log from above Avoid letting the chain touch the ground as you finish the cut Maintain full throttle but be prepared for what might happen If it is possible can you turn the log stop cutting about 2 3 of the way through the log Turn the log and finish the cut from the opposite side The log is supported at one end There is a high risk that it will split Start by cutting fro...

Page 24: ...u first intended Another very important factor which does not affect the felling direction but does affect your safety is to make sure the tree has no damaged or dead branches that might break off and hit you during felling The main point to avoid is letting the tree fall onto another tree It is very dangerous to remove a trapped tree and there is high accident risk See instructions under the head...

Page 25: ...of the tree and cut on the pull stroke Make the felling cut about 3 5 cm 1 5 2 inches above the bottom directional cut Set the spike bumper if one is fitted just behind the felling hinge Use full throttle and advance the chain bar slowly into the tree Make sure the tree does not start to move in the opposite direction to your intended felling direction Drive a wedge or breaking bar into the cut as...

Page 26: ...mounted Portable Cutting trees and branches that are in tension Preparations Work out which side is in tension and where the point of maximum tension is i e where it would break if it was bent even more Decide which is the safest way to release the tension and whether you are able to do it safely In complicated situations the only safe method is to put aside your chain saw and use a winch General ...

Page 27: ...lose as possible to the chain saw for maximum control If possible let the weight of the chain saw rest on the trunk Keep the trunk between you and the chain saw as you move along the trunk Cutting the trunk into logs See instructions under the heading Basic cutting technique WARNING Kickback can happen very suddenly and violently kicking the chain saw bar and chain back at the user If this happens...

Page 28: ...erson First adjust the L jet then the idling screw T and then the H jet The recommended engine speeds are as follows Changing the type of fuel Fine tuning may be required if the chain saw after changing the type of fuel performs differently with regard to starting acceleration maximum speed etc Conditions Before any adjustments are made the air filter should be clean and the cylinder cover fitted ...

Page 29: ...ceeded Correctly adjusted carburettor When the carburettor is correctly adjusted the machine accelerates without hesitation and burbles a little at full throttle It is also important that the chain does not rotate at idle If the L jet is set too lean it may cause starting difficulties and poor acceleration If the H jet is set too lean the machine will have less power poor acceleration and could su...

Page 30: ...ivate the chain brake by tilting your left wrist forward onto the front hand guard Do not let go of the front handle The chain should stop immediately Throttle lock Make sure the throttle control is locked at the idle setting when the throttle lock is released Press the throttle lock and make sure it returns to its original position when you release it Check that the throttle control and throttle ...

Page 31: ...ll cause the engine to overheat and may lead to serious damage Note The mesh must be replaced if it is damaged If the mesh is blocked the machine will overheat and this will cause damage to the cylinder and piston Never use a machine with a muffler that is in poor condition Never use a muffler if the spark arrestor mesh is missing or defective The muffler is designed to reduce the noise level and ...

Page 32: ...tarter 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 The recoil spring is disassembled from the starter device with its inside facing down Tap the starter lightly against a working bench or similar If th...

Page 33: ...xture too much or incorrect type of oil A dirty air filter These factors cause deposits on the spark plug electrodes which may result in operating problems and starting difficulties If the machine is low on power difficult to start or runs poorly at idle speed always check the spark plug first before taking any further action If the spark plug is dirty clean it and check that the electrode gap is ...

Page 34: ...e the higher exhaust temperature requires efficient cooling of the engine and the catalytic converter unit Winter use Running problems can occur when using the machine in the cold and snowy conditions caused by Too low engine temperature Icing of the air filter and carburettor Special measures are therefore often required Partly mask the air inlet on the starter to increase the working temperature...

Page 35: ...Check the lubrication hole in the bar to be sure it is not clogged Clean the bar groove If the bar has a sprocket tip this should be lubricated Lubricate the clutch drum bearing Clean the outside of the carburettor Check that the bar and chain are getting sufficient oil File off any burrs from the edges of the bar Check the fuel filter and the fuel hose Replace if necessary Check the saw chain wit...

Page 36: ... plug Champion RCJ 7Y Champion RCJ 7Y Electrode gap mm 0 5 0 5 Fuel and lubrication system Manufacturer of carburettor Tillotson Tillotson Carburettor type HS 228 HS 228 Fuel tank capacity litre 0 9 0 9 Oil pump capacity at 8 500 rpm ml min 9 12 15 18 9 12 15 18 Oil tank capacity litre 0 5 0 5 Type of oil pump Automatic Automatic Weight Chain saw without bar or chain empty tanks kg 7 6 7 6 Noise e...

Page 37: ...for your chain saw Saw chain filing and file gauges Bar Chain Length inch Pitch inch Gauge mm Max nose radius Type Drive link count 15 3 8 1 5 11T Husqvarna H42 56 16 3 8 1 5 11T 60 18 3 8 1 5 11T 68 20 3 8 1 5 11T 72 24 3 8 1 5 11T 84 28 3 8 1 5 11T 92 18 3 8 1 5 34 mm 68 20 3 8 1 5 34 mm 72 24 3 8 1 5 34 mm 84 28 3 8 1 5 34 mm 92 ...

Page 38: ... emissions see the chapter Technical data The following standards have been applied EN ISO 12100 2 CISPR 12 1997 EN ISO 11681 1 2004 Notified body 0404 SMP Svensk Maskinprovning AB Fyrisborgsgatan 3 SE 754 50 Uppsala Sweden has carried out EC type examination in accordance with the machinery directive s 98 37 EC article 8 point 2c The certificates for EC type examination in accordance with annex V...

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