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MAINTENANCE

32 – English

Checking the brake trigger

Place the chain saw on firm ground and start it. Make sure 
the chain does not touch the ground or any other object. 
See the instructions under the heading Start and stop.

Grasp the chain saw firmly, wrapping your fingers and 
thumbs around the handles.

Apply full throttle and activate 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 lockout

Make sure the throttle control is locked at the idle 
setting when the throttle lockout is released.

Press the throttle lockout and make sure it returns to 
its original position when you release it.

Check that the throttle control and throttle lockout 
move freely and that the return springs 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 the right hand guard is not damaged and that 
there are no visible defects, such as cracks.

Summary of Contents for 1153183-95

Page 1: ...E E E En n n ng g g gl l l li i i is s s sh h h h 3120XP Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...ar touches an object and cause a lightning fast reverse reaction kicking the guide bar up and towards the operator May cause serious personal injury 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 Alwa...

Page 3: ...Emission Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal emissions requirements Maintenance replacement or repair of the emission control devices and system may be performed by any nonroad engine repair establishment or individual IN ACCORDANCE WITH ANSI B175 1 2000 Chain Saw ...

Page 4: ...arting and stopping 21 WORKING TECHNIQUES Before use 23 General working instructions 23 How to avoid kickback 29 MAINTENANCE Carburetor 30 Checking maintaining and servicing chain saw safety equipment 31 Muffler 33 Starter 33 Air filter 35 Spark plug 35 Lubricating the bar tip sprocket 35 Needle bearing lubrication 36 Adjustment of the oil pump 36 Cooling system 36 Maintenance schedule 37 TECHNICAL ...

Page 5: ... 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 satisfie...

Page 6: ...mper spike 17 Chain catcher Catches chain if it jumps or breaks 18 Clutch cover with built in chain brake 19 Right hand guard Protects right hand if chain breaks or jumps 20 Throttle control 21 Throttle lockout Prevents accidental operation of throttle control 22 Decompression valve 23 Combination spanner 24 Chain tensioning screw 25 Operator s manual 26 Bar guard 27 Air filter cover 28 Lever for e...

Page 7: ...ents 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 This machine produces an electromagnetic field during operation This field may under some circumstances interfere with active or passive medical implants To reduce the risk of serious or fatal injury we recommend persons with medica...

Page 8: ...f 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 risk of accidents but only you can prevent them Take care when using your saw and make sure the kic...

Page 9: ...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 either manually or automatically by the inertia release mechanism depends on the force of the kickback and the position of the chain saw in relation to the object that the kickback zone of the bar strikes If you get a violent kickback while the ki...

Page 10: ...d 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 to slow down and stop the chain before the chain saw hits you Only you and proper working technique can eliminate kickback and its danger Throttle lockout The throttle lockout is designed to prevent accidental operation of the...

Page 11: ...h gauge setting Follow our instructions and use the recommended depth gauge clearance Too large 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 WARNING Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired cir...

Page 12: ...ch inches The spacing between the drive links of the chain must match the spacing of the teeth on the bar tip sprocket and drive sprocket 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 a...

Page 13: ...ical data for information on the size 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...

Page 14: ...ou can Raise the tip 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 nuts while lifting the tip of the bar at the same time Check that you can pull the chain round freely by hand and that it does not sag from the underside of t...

Page 15: ...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 freely and that the lubricating hole in the tip sprocket is not blocked Clean and lubricate if necessa...

Page 16: ...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 instruct...

Page 17: ... that the drive links of the chain fit 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 sa...

Page 18: ...environmental fuel for four stroke engines blended with two stroke oil as set out below Note that carburetor adjustment may be necessary when changing the type of fuel see instructions under the heading Carburetor Running in Avoid running 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 sp...

Page 19: ...sumption increases by 40 80 depending on the oil pump s basic setting Fueling Clean the area around the fuel cap Clean the fuel and chain oil tanks regularly The fuel filter must be replaced at least once a year Contamination in the tanks causes malfunction Make sure the fuel is well mixed by shaking the container before refuelling The capacities of the chain oil tank and fuel tank are carefully ma...

Page 20: ...lays switches boilers and the like Always store fuel in an approved 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 ...

Page 21: ... the choke control in the choke position Starting Grip the front handle with your left hand Hold the chain saw on the ground by 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 no...

Page 22: ... throttle latch As the chain brake is still activated the engine must return to idling speed as soon as possible by disengaging the throttle latch in order to avoid unnecessery wear on the clutch assembly Pull the front hand guard towards the front handle The chain brake is now disengaged Your saw is ready for use Stopping Stop the engine by switching off the ignition Move the ignition switch to s...

Page 23: ...ension A tree that is under tension may spring back to its normal position before or after being cut If you position yourself incorrectly or make the cut in the wrong place the tree may hit you or the machine and cause you to lose control Both situations can cause serious personal injury 6 Before moving your chain saw switch off the engine and lock the chain using the chain brake Carry the chain s...

Page 24: ...r one piece at a time Remove the cut pieces to keep your working area safe 4 Never use the chain saw above shoulder height and avoid cutting with the tip of the bar Never use the chain saw one handed 5 In order to keep control of your saw always maintain a firm foothold Never work on a ladder in a tree or on any other insecure support 6 Always use a fast cutting speed i e full throttle 7 Take great...

Page 25: ...ake sure the object you are cutting will not split 3 Make sure the chain will not strike the ground or any other object during or after cutting 4 Is there a risk of kickback 5 Do the conditions and surrounding terrain affect how safely you can stand and move about Two factors decide whether the chain will jam or the object that you are cutting will split the first is how the object is supported bef...

Page 26: ...ed 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 Tree felling technique Safe distance The safe distance between a tree that is to be felled and anyone else working nearby is at least 2 1 2 tree lengths Make sure that no one else is in this risk zone before or during felling F...

Page 27: ...Felling is done using three cuts First you make the directional cuts 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 cut you begin with the top cut Aim using to the saw s felling direction mark 1 toward a goal further forward in the terr...

Page 28: ...t the kickback zone of the bar will come into contact with the tree Freeing a tree that has fallen badly Freeing a trapped tree It is very dangerous to remove a trapped tree and there is high accident risk Never try to fell the tree that is trapped Never work in the risk zone of the hanging trapped tree The safest method is to use a winch Tractor mounted Portable Cutting trees and branches that ar...

Page 29: ...d and move about safely Work on the left side of the trunk Work as close 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 ...

Page 30: ...AUTION If the chain rotates while idling theT screw must be turned anti clockwise until the chain stops Rec idle speed 2500 rpm Fine adjustment When the saw has been run in the carburettor should be finely adjusted The fine adjustment should be carried out by qualified person The L needle is adjusted first then the idling screw T 2500 rpm Conditions Before any adjustments are made the air filter should...

Page 31: ...he 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 the brake band is at least 0 024 inch...

Page 32: ...t the idle setting when the throttle lockout is released Press the throttle lockout and make sure it returns to its original position when you release it Check that the throttle control and throttle lockout move freely and that the return springs 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...

Page 33: ... it is damaged If the screen 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 screen is missing or defective The muffler is designed to reduce the noise level and to direct the exhaust gases away from the operator The exhaust gases are hot and can contain sp...

Page 34: ...Note Check that the pulley can be turned an additional 1 2 turn when the starter 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 Remove the recoil spring from inside the pulley by tapping the pulley lightl...

Page 35: ...working conditions weather season etc Contact your dealer for advice Spark plug The spark plug condition is influenced by Incorrect carburetor adjustment An incorrect fuel mixture 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 star...

Page 36: ...w Recommended settings These recommendations apply to Husqvarna s chain oil for other chain oils increase the oil flow by one step 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 Cylinder cover directs cold...

Page 37: ...n 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 38: ...el tank capacity US pint litre 2 64 1 25 Oil pump capacity at 9 000 rpm ml min 30 54 Oil tank capacity US pint litre 1 48 0 7 Type of oil pump Automatic Manual for extra oil flow Weight Chain saw without bar or chain empty tanks lb kg 22 9 10 4 Chain bar Standard bar length inch cm 24 60 Recommended bar lengths inch cm 24 42 60 105 Usable cutting length inches cm 23 42 57 104 Pitch inch mm 0 404 10...

Page 39: ...n requirements of ANSI B 175 1 1991 Listed ATL is the Oregon designation of Armour Tip Large hard nose bar Saw chain filing and file gauges Bar Chain Length inch Pitch inch Max radius nose wheel 24 42 0 404 ATL 1 65 Husqvarna H64 Oregon 27 WARNING This chain saw model is capable of severe kickback that could result in serious injuries to the user Do not operate this saw unless you have extraordinary...

Page 40: ...sqvarna Forest Garden at 1 800 487 5963 WARRANTY COMMENCEMENT DATE The warranty period begins on the date small nonroad engine is delivered LENGTH OF COVERAGE Husqvarna Forest Garden warrants to the initial owner 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 REPAI...

Page 41: ...al parts 2 Intake pipe airfilter holder and carburetor bolts 3 Airfilter and fuelfilter covered up to maintenance schedule 4 Spark Plug covered up to maintenance schedule 5 Ignition Module MAINTENANCE STATEMENT The owner is responsible for the performance of all required maintenance as defined in the operator s manual ...

Page 42: ...nd 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 yo...

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Page 44: ...1153183 95 z U2G 5i z U2G 5i 2010 04 15 Original instructions ...

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