Husqvarna 1150902-95 Operator'S Manual Download | Manualshive

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MAINTENANCE

English

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33

To adjust the carburetor correctly you should contact a
mechanic with access to a rev counter.
CAUTION! As the spark is cut off, the rev counter does not
show speeds higher than 13600 rpm.

Correctly adjusted carburetor

When the carburetor is correctly adjusted the machine
accelerates without hesitation and the machine 4-cycles
a little at max. speed. 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 suffer damage to 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 hand guard is not damaged and that
there are no visible defects such as cracks.

Move the front hand guard forwards and back to make
sure it moves freely and that it is securely anchored to the
clutch cover.

Checking the inertia brake release

With the engine turned off, hold the chain saw over a
stump or other firm object. Let go of the front handle so
that the bar drops towards the stump as the chain saw
rotates around the rear handle.

When the bar hits the stump the brake should be
applied.

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.

Note! All servicing and repair work on the machine
requires special training. This is especially true of the
machine

′

s safety equipment. If your machine fails any of

the checks described below we recommend you to
contact our servicing dealer.

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Summary of Contents for 1150902-95

Page 1: ... ng g g gl l l li i i is s s sh h h h 455e Rancher 455 Rancher 460 Rancher Operator s manual EPA II Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...t with one hand only Contact of the guide bar tip with any object must be avoided Tip contact may cause the guide bar to move suddenly upward and backward so called kickback which may cause serious 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 po...

Page 3: ...ch the engine has been shown to meet Federal emissions requirements Category C 50 hours B 125 hours and A 300 hours Maintenance replacement or repair of the emission control devices and system may be performed by any nonroad engine repair establishment or individual The engine exhaust from this product contains chemical known to the State of California to cause cancer birth defects or other reprod...

Page 4: ...22 WORKING TECHNIQUES Before use 24 General working instructions 24 How to avoid kickback 31 MAINTENANCE General 32 Carburetor adjustment 32 Checking maintaining and servicing chain saw safety equipment 33 Muffler 35 Starter 35 Air filter 36 Spark plug 37 Lubricating the bar tip sprocket 37 Needle bearing lubrication 37 Adjustment of the oil pump 37 Cooling system 37 Air Injection centrifugal clea...

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 satisfi...

Page 6: ...crews carburetor 9 Starter 10 Chain oil tank 11 Throttle lockout 12 Decompression valve 13 Front handle 14 Front hand guard 15 Muffler 16 Bar tip sprocket 17 Chain 18 Bar 19 Bumper spike 20 Chain tensioning screw 21 Chain catcher 22 Oil pump adjustment screw 23 Clutch cover 24 Right hand guard 25 Throttle control 26 Operator s manual EPA 27 Combination spanner 28 Bar guard 29 Information and warni...

Page 7: ...stances interfere with pacemakers To reduce the risk of serious or fatal injury we recommend persons with pacemakers to consult their physician and the pacemaker manufacturer before operating this machine IMPORTANT The machine is only designed for cutting wood You should only use the saw with the bar and chain combinations we recommend in the chapter Technical data Never use the machine if you are...

Page 8: ...y equipment In this section the machine s safety features and their function are explained For inspection and maintenance see instructions under the heading Checking maintaining and servicing chain saw safety equipment See instructions under the heading What is what 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 incre...

Page 9: ...d 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 the front handle Kickback can be very sudden and violent Most kickbacks are minor and do not always ac...

Page 10: ...s under the heading Checking maintaining and servicing chain saw safety equipment We 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 brak...

Page 11: ...chain breaking or jumping off the bar Obtain optimal cutting performance Extend the life of cutting equipment Avoid increasing vibration levels General rules Only use cutting equipment recommended by us See instructions under the heading Technical data Keep the chain s cutting teeth properly sharpened Follow our instructions and use the WARNING Overexposure to vibration can lead to circulatory dam...

Page 12: ...me 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 chain combinations we recommend Bar Length inches cm Number of teeth on bar tip sprocket T Chain pitch inches...

Page 13: ...tting 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 sharpen cutt...

Page 14: ...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 period during...

Page 15: ...ing with chain oil All our chain saws have an automatic chain lubrication system On some models the oil flow is also adjustable The saw chain oil tank and the fuel tank are designed 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...

Page 16: ... following drive sprockets A Spur sprocket the chain sprocket is welded on the drum B Rim sprocket replaceable Regularly check the degree of wear on the drive sprocket Replace if wear is excessive Replace the drive sprocket whenever you replace the chain Needle bearing lubrication Both versions of sprockets have a needle bearing on the drive shaft which has to be greased regularly once a week CAUT...

Page 17: ... 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 Mac...

Page 18: ...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 can still be turned easily by hand Hold up the bar tip an...

Page 19: ...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 wheel down 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 can still be turned easily by hand Hold up the bar tip and tighten the bar kno...

Page 20: ... 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 specially formulated for our air cooled two stroke engines Never use two stroke oil inte...

Page 21: ...tact with sparks or naked flames from electrical equipment electric motors relays 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 Ensure the machine is cleane...

Page 22: ...e as for starting a cold engine but without setting the choke control in the choke position The correct choke start throttle setting is obtained by moving the choke control to the choke position and then pushing it in again 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 h...

Page 23: ... See instructions under the heading Assembly Without a bar and chain attached to the chain saw the clutch can come loose and cause serious injury The chain brake should be activated when starting Se instructions under the heading Start and stop Do not drop start This method is very dangerous because you may lose control of the saw Never start the machine indoors Exhaust fumes can be dangerous if i...

Page 24: ...tting 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 Take great care when working on sloping ground 5 Take great care when cutting a tree that i...

Page 25: ...ded 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 lead to kickback if the kickback zone of the bar accidentally touches a ...

Page 26: ... damage Cutting from above Cutting with a pulling chain Cutting 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 ...

Page 27: ... However there is a risk that the chain will touch the ground when you finish the cut Cut 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...

Page 28: ...the direction you 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 instruction...

Page 29: ...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 30: ...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 31: ...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 32: ...lified person First adjust the L jet then the idling screw T and then the H jet Conditions Before any adjustments are made the air filter should be clean and the cylinder cover fitted Adjusting the carburetor while a dirty air filter is in use will result in a leaner mixture next time the filter is cleaned This can give rise to serious engine damage Do not attempt to adjust the L and H jets beyond...

Page 33: ...d is at least 0 024 inch 0 6 mm thick at its thinnest point Checking the front hand guard Make sure the front hand guard is not damaged and that there are no visible defects such as cracks Move the front hand guard forwards and back to make sure it moves freely and that it is securely anchored to the clutch cover Checking the inertia brake release With the engine turned off hold the chain saw over...

Page 34: ... 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 gua...

Page 35: ...h 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 sparks which may cause fire if directed against dry and combustible material Starter Changing a broken or worn starter cord Loosen the screws ...

Page 36: ...working from the outside in towards centre Lubricate the recoil spring with light oil Fit the pulley and tension the recoil spring Fitting the starter To fit the starter first pull out the starter cord and place the starter in position 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...

Page 37: ...e bearing lubrication The clutch drum has a needle bearing on the output shaft This needle bearing must be lubricated regularly once a week When lubricating remove the clutch cover by loosening the two bar nuts Lay the saw on its side with the clutch drum upwards Lubrication involves engine oil dripping into the centre of the clutch drum as it rotates Adjustment of the oil pump Adjustments are mad...

Page 38: ...ilter and carburetor Special measures are therefore often required Partly mask the air inlet on the starter to increase the working temperature of the engine Temperature 0 C 32 F or colder The cylinder cover is designed so it can be adjusted for running in cold weather so that preheated air from the cylinder can pass into the carburetor space preventing icing of the air filter etc Temperature 5 C ...

Page 39: ... 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 40: ...w kickback saw chain outlined in ANSI B 175 1 2000 We recommend to use only the listed combinations of bars and chains for chain saw model Husqvarna 455 Rancher Other chain saw models may not meet the kickback requirements when equipped with the listed bar and chain combinations 455e Rancher 455 Rancher 460 Rancher Engine Cylinder displacement cu in cm3 3 38 55 5 3 38 55 5 3 68 60 3 Cylinder bore ...

Page 41: ...13 0 325 0 050 1 3 10T Husqvarna H30 56 15 0 325 10T 64 16 0 325 10T 66 18 0 325 10T 72 20 0 325 10T 80 13 0 325 0 058 1 5 0 050 1 3 10T Husqvarna H25 Husqvarna H22 56 15 0 325 10T 64 16 0 325 10T 66 18 0 325 10T 72 20 0 325 12T 80 15 3 8 0 058 1 5 0 050 1 3 11T Husqvarna H42 Husqvarna H46 Husqvarna H47 Husqvarna H48 Husqvarna H80 Husqvarna H81 56 16 3 8 11T 60 18 3 8 11T 68 20 3 8 11T 72 ...

Page 42: ... 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 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 ...

Page 43: ...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...

Page 44: ...1150902 95 z Rz 5T z Rz 5T 2008 08 19 ...

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