Husqvarna 346XP EPA II, 353 EPA Operator'S Manual Download

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English

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TECHNICAL DATA

Technical data

346XP

353

Engine

Cylinder displacement, cu.in/cm

2,75/45,0

3,15/51,7

Cylinder bore, inch/mm

1,65/42

1,77/45

Stroke, inch/mm

1,28/32,5

Idle speed, rpm

2700

Power, kW/hp @ rpm

2,5/3,4 @ 9600

2,4/3,3 @ 9000

Ignition system

Manufacturer of ignition system

SEM

Type of ignition system

Electronic

Spark plug

NGK BPMR 7A/

Champion RCJ 7Y

NGK BPMR 7A/

Champion RCJ 7Y

Electrode gap, inch/mm

0,02/0,5

Fuel and lubrication system

Manufacturer of carburetor

Zama

Carburetor type

C3-EL18

Fuel tank capacity, US pint/litre

1,06/0,5

Oil pump capacity at 9,000 rpm, ml/min

5-12

Oil tank capacity, US pint/litre

0,59/0,28

Type of oil pump

Automatic

Weight

Chain saw without bar or chain, empty tanks, lb/kg

346XP: 10,6/4,8

353: 11,0/5,0

346XPG: 10,8/4,9

353G: 11,2/5,1

346XP E-tech: 10,8/4,9

353 E-tech: 11,0/5,0

346XPG E-tech: 11,0/5,0

353G E-tech: 11,2/5,1

Chain/bar

Recommended bar lengths, inch/cm

13-20"/33-50

Pitch, inch/mm

0,325/8,25

Thickness of drive links, inch/mm

0,050/1,3

0,058/1,5

Drive sprocket type/teeth

Rim/7

Chain speed at max. power, m/sec

18,5

17,3

Summary of Contents for 346XP EPA II, 353 EPA

Page 1: ...E E En n n ng g g gl l l li i i is s s sh h h h 346XP EPA II 353 EPA I Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...ars this symbol it is equipped with a catalytic converter 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 go...

Page 3: ...G TECHNIQUES Before use 21 General working instructions 21 How to avoid kickback 28 MAINTENANCE General 29 Carburetor adjustment 29 Checking maintaining and servicing chain saw safety equipment 30 Muffler 32 Starter 32 Air filter 33 Spark plug 33 Lubricating the bar tip sprocket 34 Needle bearing lubrication 34 Adjustment of the oil pump 34 Cooling system 34 Air Injection centrifugal cleaning 35 W...

Page 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...

Page 5: ...n on off switch 11 Fuel tank 12 Muffler 13 Bar tip sprocket 14 Chain 15 Bar 16 Bumper spike 17 Chain catcher 18 Clutch cover 19 Rear handle with right hand guard 20 Throttle control 21 Throttle lockout 22 Decompression valve Model 353 23 Combination spanner 24 Chain tensioning screw 25 Operator s manual 26 Transport guard 27 Oil pump adjustment screw 28 Switch for heated handle Models 346XPG 353G ...

Page 6: ...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 risk of serious or fatal injury we reco...

Page 7: ...d 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 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 r...

Page 8: ... 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 the front handle Kickback can be very sudden and violent Most kickbacks are minor and do not always activate the chain brake If this happens you should hold the chain saw firmly and not let go The way the chain brake is activated eithe...

Page 9: ... recommend you do before you begin each work session Second the kickback must be strong enough to activate the chain brake If the chain brake is too sensitive it would activate 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 acti...

Page 10: ...aintain your cutting equipment in order to Reduce the risk of kickback Reduce the risk of the saw chain breaking or jumping off the bar Obtain optimal cutting performance Extend the life of cutting equipment Avoid increasing vibration levels WARNING Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation Contact your doctor if you experience...

Page 11: ...ack Chain A chain is made up of a number of links which are available in standard and low kickback versions Some terms that describe the bar and chain To maintain the safety features of the cutting equipment you should replace a worn or damaged bar or chain with a bar and chain combinations recommended by Husqvarna See instructions under the heading Technical Data for a list of replacement bar and...

Page 12: ...ng angle 2 Cutting angle 3 File position 4 Round file diameter It is very difficult to sharpen a chain correctly without the right equipment We recommend that you use our file gauge This will help you obtain the maximum kickback reduction and cutting performance from your chain See instructions under the heading Technical data for information about sharpening your chain Sharpening cutting teeth To...

Page 13: ...depth gauge that protrudes through the depth gauge tool The depth gauge setting is correct when you no longer feel resistance as you draw the file along the depth gauge tool Tensioning the chain The more you use a chain the longer it becomes It is therefore important to adjust the chain regularly to take up the slack Check the chain tension every time you refuel NOTE A new chain has a running in p...

Page 14: ... that you also use the recommended cutting equipment a bar that is too long will use more chain oil Checking chain lubrication Check the chain lubrication each time you refuel See instructions under the heading Lubricating the bar tip sprocket Aim 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...

Page 15: ...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 ...

Page 16: ...t 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 bar tip and tighten t...

Page 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 ...

Page 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 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 mach...

Page 19: ... placing your right foot through the rear handle Pull the starter 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 wrap the starter cord around your hand CAUTION Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended This can damag...

Page 20: ...ry 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 right ...

Page 21: ...ng in bad 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 Make sure you can move and stand safely Check the area around you for possib...

Page 22: ...our right hand on the rear handle and your left hand on the front handle Wrap your fingers and thumbs 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 t...

Page 23: ...g from below Cutting with pushing chain Cutting with a pushing chain 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...

Page 24: ... 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 25: ...nded 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 heading Freeing ...

Page 26: ...hosen 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 on the pull stroke Make the felling cut about 1 5 2 inches 3 5 cm above the bottom directional cut Finish the felling cut parallel with the directional cut line so that the distance between them is at least 1 10 of the trunk d...

Page 27: ...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 28: ...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 29: ...ning at a too high speed for extended periods during the first 10 hours CAUTION If the chain rotates while idling the T screw must be turned anti clockwise until the chain stops Rec idle speed 2700 rpm Fine adjustment When the machine has been run in the carburetor should be finely adjusted The fine adjustment should be carried out by a qualified person First adjust the L jet then the idling screw...

Page 30: ... the engine 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 the brake band is at least 0 024 inch 0 6 mm thick at its thinnest point Checking the front hand guard Make sure the front ...

Page 31: ... work properly Start the chain saw and apply 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 Right hand guard Check that t...

Page 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 ...

Page 33: ...er after taking off the air filter cover When refitting make sure that the air filter seals tightly against the filter holder Clean the filter by brushing or shaking it The filter can be cleaned more thoroughly by washing it in water and detergent An air filter that has been in use for a long time cannot be cleaned completely The filter must therefore be replaced with a new one at regular interval...

Page 34: ...l flow and turning the screw anti clockwise will increase the oil flow Recommended settings Bar 13 15 Position 1 Bar 15 18 Position 2 Bar 18 20 Position 3 Cooling system To keep the working temperature as low as possible the machine is equipped with a cooling system The cooling system consists of 1 Air intake on the starter 2 Air guide plate 3 Fins on the flywheel 4 Cooling fins on the cylinder 5 ...

Page 35: ...ng icing of the air filter etc For temperatures below 5 C 23 F and or in snow conditions there is also a special cover A for the starter housing a winter plug B for the air nozzle that is fitted as shown These reduce the flow of cooling air and prevent large amounts of snow from being sucked into the carburetor space CAUTION When the winter plug is fitted the winter flap must be open Heated handle...

Page 36: ... 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 Lubricate the clutch drum bearing Clean the outside of the carburetor Check that the bar and chain are getting sufficient oil File off any burrs from the edges of the bar Check fuel hose for cracks or other damage Change if necessary Check the saw ch...

Page 37: ...r of carburetor Zama Zama Carburetor type C3 EL18 C3 EL18 Fuel tank capacity US pint litre 1 06 0 5 1 06 0 5 Oil pump capacity at 9 000 rpm ml min 5 12 5 12 Oil tank capacity US pint litre 0 59 0 28 0 59 0 28 Type of oil pump Automatic Automatic Weight Chain saw without bar or chain empty tanks lb kg 346XP 10 6 4 8 353 11 0 5 0 346XPG 10 8 4 9 353G 11 2 5 1 346XP E tech 10 8 4 9 353 E tech 11 0 5 ...

Page 38: ...ose bar may be considered to have equivalent or less kickback energy than the sprocket nose bar Bar and chain combinations Chain saw models Husqvarna 346XP and 353 met the kickback performance requirements of ANSI B 175 1 2000 when tested with the combinations of bars and saw chains listed below The saw chain Husqvarna H30 is also classified as a low kickback saw chain since it met the requirement...

Page 39: ...ner and each subsequent purchaser that the engine is free from defects in materials and workmanship which cause the failure of a warranted part for a period of two years WHAT IS COVERED REPAIR OR REPLACEMENT OF PARTS Repair or replacement of any warranted part will be performed at no charge to the owner at an approved Husqvarna Forest Garden servicing dealer If you have any questions regarding you...

Page 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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