background image

26

 – English

FUEL HANDLING

Chain oil

• The chain lubrication

system is automatic. Always
use special chain oil with
good adhesive
characteristics.

• In countries where no

special chain oil is available,
EP 90 transmission oil can
be used.

• Never use waste oil. This

results in damage to the oil
pump, the bar and the
chain.

• It is important to use oil of

the right viscosity according
to the air temperature.

• In temperatures below 0

o

C

(32

o

F) some oils become

too viscous. This can
overload the oil pump and
result in damage to the oil
pump components.

• Contact your servicing

dealer when choosing chain
oil.

Mixing

• Always mix the petrol and

oil in a clean container
intended for fuel.

• Always start 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
saw’s fuel tank.

• Do not mix more than max.

one month’s supply of fuel.

• If the saw is not used for

some time the fuel tank
should be emptied and
cleaned.

Fuelmix

Always provide for good ventilation when
handling fuel.

!

IMPORTANT! The chain saw is equipped with a two-stroke
engine and must always been run using a mixture of petrol and
two-stroke engine oil. It is important to accurately measure the
amount of oil to be mixed to ensure that the correct mixture is
obtained. When mixing small amounts of fuel, even small
inaccuracies can drastically affect the ratio of the mixture.

Petrol

• Use good quality unleaded

or leaded petrol.

• The lowest octane

recommended is 90.

• If you run the engine on a

lower octane grade than 90
so-called, knocking can
occur. This gives rise to a
high engine temperature,
which can result in serious
engine damage.

• When working with

continuous high revs (e.g.
delimbing) a higher octane
grade is recommended.

Two-stroke oil

• For the best results use HUSQVARNA two-stroke oil, which is

especially developed for chain saws. Mixing ratio 1:50 (2%).

• If HUSQVARNA two-stroke oil is not available, you may use

another two-stroke oil of good quality that is intended for air
cooled engines. Contact your dealer when selecting an oil.
Mixing ratio 1:33 (3%)-1:25 (4%).

• Never use two-stroke oil intended for water cooled outboard

motors, so-called, outboard oil.

• Never use oil intended for four-stroke engines.

5

10
15
20

2%(1:50)

0,10
0,20
0,30
0,40

3%(1:33)

0,15
0,30
0,45
0,60

4%(1:25)

0,20
0,40
0,60
0,80

Gasolin

Benzin

Essence

Gasolina

Lit.

Oil • Öl

Huile • Aceite

Lit.

1

2 1/2

5

2%(1:50)

2 1/2
6 1/2

12 7/8

3%(1:33)

3 3/4
9 3/4

19 1/4

4%(1:25)

5 1/8

12 7/8
25 3/4

US

gallon

US

fl. oz.

Summary of Contents for 254XP, 257, 262XP

Page 1: ...Operator s manual Please read these instructions carefully and make sure you understand them before using the saw 101 91 96 26 61 268 272XP ...

Page 2: ...roved hearing protection Protective glasses or visor KEY TO SYMBOLS This product is in accordance with applicable CE directives 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 pro...

Page 3: ...ad the instructions carefully Check cutting equipment is correctly fitted and adjusted See page 25 Refuel and start the saw Check the carburettor settings See pages 26 29 Do not use the saw until sufficient chain oil has reached the chain see page 14 IMPORTANT If the carburettor mixture is too lean it greatly increases the risk of engine failure Poor maintenance of the air filter will cause carbon...

Page 4: ...PROTECTIVE EQUIPMENT MOST CHAIN SAW ACCIDENTS HAPPEN WHEN THE CHAIN TOUCHES THE OPERA TOR You must wear approved protective equipment whenever you use a chain saw Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen Ask your chain saw dealer for help in choosing the right equipment PROTECTIVE HELMET HEARING PROTECTION ...

Page 5: ...ed mechanism that tightens the Brake Band C around the engine drive system D Clutch Drum SAFETY INSTRUCTIONS 2 The front hand guard is not designed solely to activate the chain brake Another important safety feature is that it prevents the chain from hitting your left hand if you lose your grip on the front handle 3 You can also use the chain brake as a temporary brake when you change position or ...

Page 6: ... but there are certain factors to remember see point 6 above 2 Throttle lock The throttle lock is designed to prevent accidental opera tion of the throttle control When you press the lock A i e when you grasp the handle it releases the throttle trigger B When you release the handle the throttle trigger and the throttle lock both move back to their original positions This movement is controlled by ...

Page 7: ... overexposure to vibration These symptoms include numbness loss of feeling tingling pricking pain loss of strength changes in skin colour or condition These symptoms normally appear in the fingers hands or wrists SAFETY INSTRUCTIONS The exhaust fumes from the engine are hot and may contain sparks which can start a fire Never start the saw indoors or near combustible material 6 Stop switch Use the ...

Page 8: ...d front hand guard 1 Checking brake band wear Brush off any sawdust resin and dirt from the chain brake and clutch drum Dirt and wear can impair operation of the brake Regularly check that the brake band is at least 0 6 mm thick at its thinnest point SAFETY INSTRUCTIONS 4 Checking the brake trigger Start the chain saw and place it on firm ground Make sure the chain does not touch the ground or any...

Page 9: ...1 Make sure the throttle control is locked at the idle setting when you release the throttle lock 2 Press the throttle lock and make sure it returns to its original position when you release it 3 Check that the throttle control and throttle lock move freely and that the return springs work properly 4 Start the saw and apply full throttle Release the throttle control and check that the chain stops ...

Page 10: ...he risk of kickback Reduce the risk of the chain breaking or jumping Obtain maximum cutting performance Extend the life of cutting equipment The 5 basic rules 1 Only use cutting equipment recommended by us See the Technical data section 2 Keep the chain cutting teeth properly sharpened Follow our instructions and use the recommended file gauge A damaged or badly sharpened chain increases the risk ...

Page 11: ...ACK REDUCTION The level of kickback reduction offered by a chain is indicated by its model number See the Technical data section to find the model numbers of chains that are recommended for use with your saw 1 Cutting equipment designed to minimise kickback Faulty cutting equipment or the wrong combination of bar and chain increases the risk of kickback Use only the bar and chain combinations reco...

Page 12: ...data section for information about sharpening your saw chain It is very difficult to sharpen a chain correctly without the right equipment We recommend you use a file gauge This will help you obtain the maximum kickback reduction and cutting performance from your chain The following faults will increase the risk of kickback considerably FILE ANGLE TOO LARGE CUTTING ANGLE TOO SMALL FILE DIAMETER TO...

Page 13: ...sharpened We recommend that you adjust the raker clearance every third time you sharpen the chain NOTE This recommendation assumes that the length of the cutting teeth is not reduced excessively To adjust the raker clearance you will need a FLAT FILE and a RAKER GAUGE Place the gauge over the raker lip Place the file over the part of the lip that protrudes through the gauge and file off the excess...

Page 14: ...less of whether it is warm summer or cold winter weather As a chainsaw manufacturer we have developed an optimal chain oil which with its vegetable oil base is also biodegradable We recommend the use of our own oil for both maximum chain life and to minimise environmental damage If our own chain oil is not available standard chain oil is recommended In areas where oil specifically for lubrication ...

Page 15: ... each time you refuel Use the special grease gun and a good quality bearing grease SAFETY INSTRUCTIONS E Lubricating the clutch drum bearing Between the engine drive shaft and the clutch drum is a needle bearing that must be lubricated daily Use the specially designed grease gun and a good quality bearing grease F Checking wear on cutting equipment Saw chain Check the saw chain daily for Visible c...

Page 16: ...ee section on General working instructions CHECK THAT ALL SAFETY FUNCTIONS ARE WORKING see section on General working instructions and General safety precautions SAFETY INSTRUCTIONS HOW TO AVOID KICKBACK Kickback can happen very suddenly and violently kicking the saw bar and chain back at the user If this happens when the chain is moving it can cause very serious even fatal injuries It is vital yo...

Page 17: ...the wrong cutting equipment or a chain that is not sharpened correctly The wrong combination of bar and chain can increase the risk of kickback General rules 1 If you understand what kickback is and how it happens then you can reduce or eliminate the element of surprise By being prepared you reduce the risk Kickback is usually quite mild but it can sometimes be very sudden and violent 2 Always hol...

Page 18: ...f you spill fuel or chain oil on yourself or your clothes Change your clothes c If there is a fuel leak Check regularly for leaks from the FUEL CAP and FUEL LINES Always store the chain saw and fuel away from any sources of sparks or naked flames e g machines electric motors relays switches boilers etc Always store fuel in an approved container designed for that purpose For longer periods of stora...

Page 19: ... rain strong wind intense cold etc Working in cold weather is tiring and often brings added risks such as icy ground unpredictable 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 Check the area around you for possi...

Page 20: ...nish the cut Maintain full throttle but be prepared in case the chain snatches A If it is possible to turn the log you should stop cutting about 2 3 of the way through B Turn the log and finish the cut from the opposite side 2 Basic cutting technique General Always use full throttle when cutting Reduce the speed to idle after every cut running the engine for too long at full throttle without any l...

Page 21: ...elling B Felling direction The aim is to fell the tree in the best possible position for subsequent limbing and cross cutting You want it to fall on ground where you can move about safely The main point to avoid is letting the tree fall onto another tree It can be both difficult and dangerous to remove a tree in such a position see point 4 in this section Once you have decided which way you want t...

Page 22: ...cuts meet is called the DIRECTIONAL CUT LINE This line should be perfectly horizontal and at right angles 90 to the chosen felling direction FELLING CUT The felling cut is made from the opposite side of the tree and it must be perfectly horizontal Stand on the left side of the tree and cut with the bottom edge of the bar Make the FELLING CUT about 3 5 cm 1 5 2 inches above the flat section of the ...

Page 23: ... on the trunk Keep the tree between you and the saw as you move along the trunk F Cutting the trunk into logs See chapter General working instructions point 2 Basic cutting technique 4 Freeing a tree that has fallen badly high accident risk A Freeing a Trapped tree The safest method is to use a winch A Tractor mounted B Portable B Cutting trees and branches that are in tension Preparations a Work ...

Page 24: ...in 15 Saw bar 16 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 272XP 23 Combination spanner 24 Chain tensioning screw 25 Operator s manual 26 Bar guard 27 Start throttle lock 28 Switch for heated...

Page 25: ...ain is run in Check the chain tension regularly A correctly tensioned chain gives good cutting performance and long lifetime A Fit the bar over the bar bolts Place the bar in its rearmost position Place the chain over the drive sprocket and in the groove on the bar Begin on the top side of the bar Make sure that the edges on the cutting links are facing forward on the top side of the bar Fit the c...

Page 26: ...always been run using a mixture of petrol and two stroke engine oil It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained When mixing small amounts of fuel even small inaccuracies can drastically affect the ratio of the mixture Petrol Use good quality unleaded or leaded petrol The lowest octane recommended is 90 If you run the engine on ...

Page 27: ... fuel cap carefully after fuelling Always move the saw from the fuelling area before starting Clean around the fuel cap Clean the fuel and chain oil tanks regularly The fuel filter should be changed at least once a year Contamination in the fuel tanks causes malfunction Make sure the fuel is well mixed by shaking the container before fuelling The volume of chain oil and fuel tanks are adjusted to ...

Page 28: ...compression valve A Press the valve to reduce the pressure in the cylinder and make starting easier Always use the decompression valve when starting the saw Once the saw has started the valve will automatically return to its original setting Warm engine Use the same starting procedure as for a cold engine but do not pull out the choke knob Start Grip the front handle with your left hand and hold t...

Page 29: ...ockwise The carburettor is now set to H 1 and L 1 Now start the saw according to the starting instructions and run it warm for 10 minutes NOTE If the chain rotates the T screw should be turned anti clockwise until the chain stops Place the saw on a flat surface so that the bar points away from you and so that the bar and chain do not come into contact with the surface or other objects Low speed ne...

Page 30: ...out and in towards the centre Lubricate the recoil spring with thin oil Assemble the starter pulley and tension the recoil spring Changing a broken or worn starter cord Loosen the screws that hold the starter device against the crankcase and remove the starter device Pull out the cord approx 30 cm and lift it up into the notch in the pulley Zero set the recoil spring by letting the pulley rotate s...

Page 31: ... mixture too much oil in the gasoline A dirty air filter These factors cause deposits on the spark plug electrodes which may result in malfunction and starting difficulties If the engine is low on power difficult to start or runs poorly at idling speed always check the spark plug first Adjusting the oil pump The oil pump can be adjusted to give four different oil flow rates To adjust the flow rate...

Page 32: ...ng has to be done when the saw is used under normal conditions Otherwise there is a risk of overheating which can cause severe engine damage IMPORTANT Any maintenance other than that described in this manual must be carried out by your servicing dealer Needle bearing maintenance The clutch drum is equipped with one of the following chain sprockets Spur sprocket A the chain sprocket is welded on th...

Page 33: ...nside of the oil tank with gasoline 7 Check all cables and connections Daily maintenance 1 Check that all the components of the throttle control operate safely i e throttle lock throttle lever and start throttle lock 2 Clean the chain brake and check its function according to the instructions Make sure that the chain catcher is undamaged Otherwise replace it immediately 3 Clean or replace the air ...

Page 34: ...m Stroke inch mm Idle speed rpm Recommended max speed unloaded rpm Power kW rpm Ignition system Manufacture Type of ignition system Spark plug Electrode gap inch mm Fuel and lubrication system Manufacturer Carburettor type Fuel capacity US pint litre Oil pump capacity at 8500 rpm ml min Oil capacity US pint litre Type of oil pump Weight Without bar and chain Lbs kg TECHNICAL DATA Note 1 Equivalent...

Page 35: ... max load 1 3 max speed Note 2 Equivalent vibration level is according to ISO 7505 calculated as the time weighted energy total for vibration levels under various working conditions with the following time distribution 1 3 idle 1 3 max load 1 3 max speed Bar and chain combinations The following combinations are CE approved Bar Chain Length Pitch Max inches inches tip radius 15 3 8 11T Husqvarna H4...

Page 36: ...s in the COUNCIL S DIRECTIVES of June 14 1989 relating to machinery 89 392 EEC and applicable supplements of May 3 1989 relating to electromagnetic compatibility 89 336 EEC and applicable supplements The following harmonised standards have been applied EN292 2 EN608 The supplied chain saw conforms with the example that underwent EU type approval Registered body 0363 Deutsche Prüfstelle Weißenstein...

Page 37: ...English 37 ...

Page 38: ...38 English 33 6 ...

Page 39: ...English 39 ...

Page 40: ...40 English 33 6 2001W08 ...

Reviews: