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GENERAL SAFETY PRECAUTIONS

English

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 15

Checking wear on cutting equipment

Check the chain daily for:

Visible cracks in rivets and links.

Whether the chain is stiff.

Whether rivets and links are badly worn.

Replace the saw chain if it exhibits any of the points 
above.

We recommend you compare the existing chain with a 
new chain to decide how badly the existing chain is worn.

When the length of the cutting teeth has worn down to 
only 0.16 inch (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 you should turn it over 
daily.

!

WARNING! Most chain saw accidents 
happen when the chain touches the 
operator.

Wear personal protective equipment. See 
instructions under the heading ”Personal 
protective equipment”.

Do not tackle any job that you feel you 
are not adequately trained for. See 
instructions under the headings 
Personal protective equipment, How to 
avoid kickback, Cutting equipment and 
General working instructions.

Avoid situations where there is a risk of 
kickback. See instructions under the 
heading Machine

′′′′

s safety equipment.

Use the recommended protective 
equipment and check its condition. See 
instructions under the headings 
Technical data and General safety 
precautions.

Check that all the chain saw safety 
features are working. See instructions 
under the headings General working 
instructions and General safety 
precautions.

Never use a chain saw by holding it with 
one hand. A chain saw is not safely 
controlled with one hand. Always have a 
secure, firm grip around the handles with 
both hands.

Содержание 1151375-95

Страница 1: ... En n n ng g g gl l l li i i is s s sh h h h 334T 338XPT EPA III CARB III Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Страница 2: ...ine by moving the stop switch to the STOP position before carrying out any checks or maintenance Working position Choke Always wear approved protective gloves Regular cleaning is required Visual check Protective goggles or a visor must be worn Refuelling Filling with oil and adjusting oil flow The chain brake must be engaged when the chain saw is started WARNING Kickback may occur when the nose or...

Страница 3: ...ing and stopping 19 WORKING TECHNIQUES Before use 21 General working instructions 21 How to avoid kickback 28 MAINTENANCE Carburetor 29 Checking maintaining and servicing chain saw safety equipment 30 Muffler 32 Starter 32 Air filter 33 Spark plug 34 Lubricating the bar tip sprocket 34 Adjustment of the oil pump 34 Cooling system 34 Maintenance schedule 35 TECHNICAL DATA Technical data 36 Bar and ...

Страница 4: ... and market high quality motor driven products for forestry and gardening as well as for building and construction industry Your purchase gives you access to professional help with repairs and service whenever this may be necessary If the retailer who sells your machine is not one of our authorized dealers ask for the address of your nearest servicing dealer It is our wish that you will be satisfi...

Страница 5: ...ff switch Choke control Start throttle lock Working position 11 Air purge 12 Top handle 13 Fixing eye for safety line 14 Spark plug cap 15 Starter handle 16 Front handle 17 Oil pump adjustment screw 18 Throttle lockout 19 Throttle control 20 Bar 21 Chain 22 Bar tip sprocket 23 Chain catcher 24 Chain tensioning screw 338XPT 25 Product and serial number plate 26 Clutch cover with built in chain brak...

Страница 6: ...micals 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 WARNING The ignition system of this machine produces an electromagnetic field during operation This field may under some circumstances interfere with pacemakers To reduce the r...

Страница 7: ...t to find where these parts are located on your machine 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 professionally If you need further information please contact your nearest servicing dealer WARNING Most chain saw accidents happen when the chain touches the ...

Страница 8: ...chain if you lose grip of the front handle The chain brake must be engaged when the chain saw is started to prevent the saw chain from rotating Use the chain brake as a parking brake when starting and when moving over short distances to reduce the risk of moving chain accidentally hitting your leg or anyone or anything close by To release the chain brake pull the front hand guard backwards towards...

Страница 9: ...all the time which would be a nuisance Will my chain brake always protect me from injury in the event of a kickback No First the chain brake must be in working order to provide the intended protection Second it must be activated during the kickback as described above to stop the saw chain Third the chain brake may be activated but if the bar is too close to you the brake might not have enough time...

Страница 10: ...arge a clearance increases the risk of kickback Keep the chain properly tensioned If the chain is slack it is more likely to jump off and lead to increased wear on the bar chain and drive sprocket Keep cutting equipment well lubricated and properly maintained A poorly lubricated chain is more likely to break and lead to increased wear on the bar chain and drive sprocket WARNING Overexposure to vib...

Страница 11: ...ocket Number of drive links The number of drive links is determined by the length of the bar the chain pitch and the number of teeth on the bar tip sprocket Bar groove width inches mm The groove in the bar must match the width of the chain drive links Chain oil hole and hole for chain tensioner The bar must be matched to the chain saw design Chain Chain pitch inches Drive link width mm inches Numb...

Страница 12: ...of file and gauge that are recommended for the chain fitted to your chain saw Check that the chain is correctly tensioned A slack chain will move sideways making it more difficult to sharpen correctly Always file cutting teeth from the inside face Reduce the pressure on the return stroke File all the teeth on one side first then turn the chain saw and file the teeth on the other side File all the ...

Страница 13: ...ip of the bar and stretch the chain by tightening the chain tensioning screw using the combination spanner Tighten the chain until it does not sag from the underside of the bar Use the combination spanner to tighten the bar nut while holding up the tip of the bar Check that you can pull the saw chain round freely by hand and that there is no slack on the underside of the bar The position of the ch...

Страница 14: ... the tip of the bar at a light coloured surface about 20 cm 8 inches away After 1 minute running at 3 4 throttle you should see a distinct line of oil on the light surface If the chain lubrication is not working Check that the oil channel in the bar is not obstructed Clean if necessary Check that the groove in the edge of the bar is clean Clean if necessary Check that the bar tip sprocket turns fr...

Страница 15: ...he life of the bar you should turn it over daily WARNING Most chain saw accidents happen when the chain touches the operator Wear personal protective equipment See instructions under the heading Personal protective equipment Do not tackle any job that you feel you are not adequately trained for See instructions under the headings Personal protective equipment How to avoid kickback Cutting equipmen...

Страница 16: ...rive 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 See instructions under the heading Tensioning the chain The chain is correctly tensioned when it does not sag from the underside of the bar but can still be turned easily by hand Hold up the ...

Страница 17: ...unning at a too high speed for extended periods during the first 10 hours Two stroke 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 Mixing ratio 1 50 2 ...

Страница 18: ...container 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 gas station The bar guard must always be fitted to the cutting attachment when the machine is being transported or in storage in order to prevent accident contact with the sharp chain E...

Страница 19: ...ine Push in the choke control as soon as the engine fires and make repeated starting attempts Immediately press and release the throttle when the engine starts That will disengage the throttle latch Note Pull the front hand guard towards the front handle The chain brake is now disengaged Your saw is ready for use WARNING Note the following before starting The chain brake must be engaged when the c...

Страница 20: ...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...

Страница 21: ... safe rescue procedures and or get help should an emergency arise 3 During tree maintenance work above ground level the working area should always be secured and marked out with signs tape or the like The person s on the ground should always inform the person s working above before they enter the secure working area 4 Do not use the machine in bad weather such as dense fog heavy rain strong wind i...

Страница 22: ...s around the handles You should use this grip whether you are right handed or left handed This grip minimizes 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 l...

Страница 23: ...hould be engaged before it is sent up to the operator in the tree The chainsaw should be fitted with a suitable strop for attaching to the operator s harness a choke the strop around the attachment point on the rear of the saw b provide suitable karabiners to allow indirect i e via the strop and direct attachment i e at the attachment point on the saw of saw to the operators harness c ensure the s...

Страница 24: ...d attach it securely to the tree inboard i e towards the truck side of the cut or to a separate tool line pull the saw from the kerf whilst lifting the branch as necessary if necessary use a handsaw or second chain saw to release the trapped saw by cutting a minimum of 30 cm away from the trapped saw Whether a handsaw or a chainsaw is used to free a stuck saw the release cuts should always be outb...

Страница 25: ... way through Finish by cutting from above so that the two cuts meet The log is supported at both ends There is a high risk that the chain will jam Start by cutting from above about 1 3 of the way through Finish by cutting from below so that the two cuts meet Limbing When limbing thick branches you should use the same approach as for cutting Cut difficult branches piece by piece Felling technique f...

Страница 26: ...ts which consist of the top cut and the bottom cut then you finish with the felling cut By placing these cuts correctly you can control the felling direction very accurately Directional cuts To make the directional cuts you begin with the top cut Try to take your position in the tree on the right side and cut on the pull stroke Next make the bottom cut so that it finishes exactly at the end of the...

Страница 27: ...length However these methods involve a much greater risk that the kickback zone of the bar will come into contact with the tree Freeing a tree that has fallen badly 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 ten...

Страница 28: ...the chain saw may move in a different direction depending on the way it was being used when the kickback zone of the bar touched the object Kickback only occurs if the kickback zone of the bar touches an object 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 th...

Страница 29: ... be finely adjusted The fine adjustment should be carried out by a qualified person First adjust the L jet then the idling screw T and then the H jet 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 ...

Страница 30: ...ld suffer damage to the engine If the L and H jets are set too rich it will lead to acceleration problems or too low a working speed Checking maintaining and servicing chain saw safety equipment Chain brake and front hand guard Checking brake band wear Brush off any wood dust resin and dirt from the chain brake and clutch drum Dirt and wear can impair operation of the brake Regularly check that th...

Страница 31: ...ly full throttle Release the throttle control and check that the chain stops and remains stationary If the chain rotates when the throttle control is in the idle position you should check the carburetor idle adjustment Chain catcher Check that the chain catcher is not damaged and is firmly attached to the body of the chain saw Vibration damping system Regularly check the vibration damping units fo...

Страница 32: ...exhaust fumes Carbon monoxide CO which is poisonous and odorless is not however reduced Consequently never work in an enclosed or badly ventilated area Good air circulation should always prevail when working in snowy hollows ravines or in confined conditions Starter Changing a broken or worn starter cord Loosen the screws that hold the starter against the crankcase and remove the starter Pull out ...

Страница 33: ... against the crankcase Then slowly release the starter cord so that the pulley engages with the pawls Fit and tighten the screws that hold the starter Air filter The air filter 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 Remove the air filter after tak...

Страница 34: ...tments are made by turning the screw using a screwdriver or combination spanner The machine is supplied from the factory with the screw set to middle position Turning the screw clockwise will reduce the oil flow and turning the screw anti clockwise will increase the oil flow Recommended settings Less oil with short bar and or soft wood More oil with longer bar and or hard wood Cooling system To ke...

Страница 35: ...ily for more even wear 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 File off any burrs from the edges of the bar Clean the outside of the carburetor Check that the bar and chain are getting sufficient oil Clean or replace the spark arrestor screen on the muffler Check fuel hose for cracks or other da...

Страница 36: ...m Manufacturer of carburetor Zama Zama Carburetor type C1Q EL33 C1Q EL33 Fuel tank capacity US pint litre 0 72 0 34 0 72 0 34 Oil pump capacity at 8 500 rpm ml min 3 7 3 7 Oil tank capacity US pint litre 0 30 0 14 0 30 0 14 Type of oil pump Automatic Automatic Weight Chain saw without bar or chain empty tanks lb kg 7 7 3 5 7 7 3 5 Chain bar Standard bar length inch cm 14 34 14 34 Recommended bar l...

Страница 37: ...he same pitch and having the same number of sprocket teeth may be considered to have equivalent kickback energy A hard nose bar having the same length and nose radius as a sprocket nose bar may be considered to have equivalent or less kickback energy than the sprocket nose bar Low kickback saw chain is a chain which has only met the kickback performance requirements of ANSI B 175 1 safety requirem...

Страница 38: ...RAGE Jonsered warrants to the ultimate purchaser and each subsequent owner that the engine or equipment is designed built and equipped so as to conform with all applicable regulations adopted by EPA and CARB and is free from defects in materials and workmanship that causes the failure of a warranted part for a period of two years WHAT IS COVERED REPAIR OR REPLACEMENT OF PARTS Repair or replacement...

Страница 39: ...have any questions regarding your warranty rights and responsibilities you should contact your nearest authorized servicing dealer or call Jonsered at 1 800 487 5951 or visit www charlotte usa jonsered com WHERE TO GET WARRANTY SERVICE Warranty services or repairs are provided through all Jonsered authorized servicing dealers MAINTENANCE REPLACEMENT AND REPAIR OF EMISSION RELATED PARTS Any replace...

Страница 40: ...and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is released Shut off the engine before setting the chain saw down Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance When cutting a limb that is under tension be alert for springback so that y...

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