Related Manuals for MTD 450E
Summary of Contents for MTD 450E
- Page 1 Operator's manual (EPA |||) 445e 450e Please read the operator's manual carefully and make sure understand the instructions before using machine. Eng||sb...
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Page 2: Symbols On The Machine
KEY TO SYMBOLS Symbols on the machine: WARNING! Chain saws can be Regular cleaning is required. dangerous! Careless or improper use can result in serious or fatal injury to the operator or others. Please read the operator's manual carefully and make sure you Visual check. -
Page 3: Table Of Contents
CONTENTS Contents FEDERAL EMISSION CONTROL WARRANTY STATEMENT KEY TO SYMBOLS YOUR WARRANTY RIGHTS AND OBLIGATIONS Symbols on the machine: ........AMERICAN STANDARD SAFETY Symbols in the operator's manual: ....... PRECAUTIONS CONTENTS Safety precautions for chain saw users ....Contents ............... INTRODUCTION Dear customer] ............. -
Page 4: Introduction
iNTRODUCTiON Dear customer! Congratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when the Swedish King Karl XI ordered the construction of a factory on the banks of the Huskvarna River, for production of muskets.The location was logical, since water power was harnessed... -
Page 5: What Is What
WHAT iS WHAT? What is what on the chain saw? 17 Muffler Cylinder cover 18 Chain Decompression valve Air purge 19 Bar tip sprocket Start reminder 20 Bar Combined start and stop switch 21 Bumper spike Rear handle 22 Chain catcher Information and warning decal 23 Chain tensioning screw... -
Page 6: General Safety Precautions
GENERAL SAFETY PRECAUTIONS Before using a new chain saw WARNING! Never allow ch Idren to use or Please read this manual carefully. b e in the Vicinity of the machine, As the machine is equipped with a spring- Check that the cutting equipment is correctly fitted and Ioaded stop switch and can be started adjusted. -
Page 7: Always Use Common Sense
GENERAL SAFETY PRECAUTIONS Always use common sense Gloves with saw protection Trousers with saw protection It is not possible to cover every conceivable situation you Boots with saw protection, steel toe-cap and non-slip can face when using a chain saw. Always exercise care and sole use your common sense. - Page 8 GENERAL SAFETY PRECAUTIONS The chain brake (A) can either be activated manually To release the chain brake pull the front hand guard (by your left hand) or automatically by the inertia backwards, towards the front handle. release mechanism. The brake is applied when the front hand guard (B) is pushed forwards.
- Page 9 GENERAL SAFETY PRECAUTIONS Throttle lockout of the front hand guard, the chain brake can only be activated by the inertia action. The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control (B).
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Page 10: Cutting Equipment
GENERAL SAFETY PRECAUTIONS Muffler Vibration damping system Your machine is equipped with a vibration damping The muffler is designed to keep noise levels to a minimum system that is designed to reduce vibration and make and to direct exhaust fumes away from the user. operation easier. - Page 11 GENERAL SAFETY PRECAUTIONS General rules Cutting equipment designed to reduce kickback Only use cutting equipment recommended by us! See instructions under the heading Technical data. WARNING! Faulty cutting equipment _'_, the wrong combination Of bar and saw chain increases the risk of kickback! Only use the barZsaw chain combinations we recommend, and follow...
- Page 12 GENERAL SAFETY PRECAUTIONS Number of drive links.The number of drive links is A sharp chain eats its way through the wood and determined by the length of the bar, the chain pitch produces long, thick chips or shavings. and the number of teeth on the bar tip sprocket. Bar groove width (inches/mm).
- Page 13 GENERAL SAFETY PRECAUTIONS Sharpening cutting teeth Adjustment of depth gauge setting To sharpen cutting teeth you will need a round file and a The cutting teeth should be newly sharpened before file gauge. See instructions under the heading Technical adjusting the depth gauge setting. We recommend data for information on the size of file and gauge that are that you adjust the depth gauge setting every third...
- Page 14 GENERAL SAFETY PRECAUTIONS Turn the knob anti clockwise to loosen the bar cover. Loosen the bar nut that holds the clutch cover and chain brake. Use the combination spanner. Then retighten the bar nut as tightly as you can by hand. Adjust the tension on the chain by turning the wheel down (+) for tighter tension and up (-) to loosen the tension.
- Page 15 GENERAL SAFETY PRECAUTIONS Lubricating cutting equipment Checking chain lubrication • Check the chain lubrication each time you refuel. See WARNING! Poor lubrication of Cutting instructions under the heading Lubricating the bar tip sprocket. equipment may Cause the chain to snap which could lead to serious even fataJ Aim the tip of the bar at a light coloured surface about...
- Page 16 GENERAL SAFETY PRECAUTIONS Chain drive sprocket Check regularly: The clutch drum is fitted with one of the following drive Whether there are burrs on the edges of the bar. sprockets: Remove these with a file if necessary. A Spur sprocket (the chain sprocket is welded on the...
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Page 17: Assembly
ASSEMBLY Fitting the bar and chain should be tensioned until it does not sag from the underside of the bar. |g.o eo, w. o | The chain is correctly tensioned when it does not sag from the underside of the bar, but can still be turned easily by Check that the chain brake is in disengaged position by hand. - Page 18 ASSEMBLY Fit the bar over the bar bolts. Place the bar in its rearmost position. Place the chain over the drive sprocket locate it in the groove on the bar. Begin on the top edge of the bar. Make sure that the edges of the cutting links are facing forward on the top edge of the bar.
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Page 19: Fuel Handling
FUEL HANDLING Fuel Mixing ratio 1:50 (2%) for all engines. Note! The machine is equipped with a two-stroke engine and must always be run using a mixture of gasoline and Gasoline, litre Two-stroke oil, litre two-stroke oil. It is important to accurately measure the 2% (1:50) amount of oil to be mixed to ensure that the correct... -
Page 20: Fueling
FUEL HANDLING Fueling Move the machine at least 10 ft (3 m) from the refuelling point before starting it. precautions, will lessen the risk of fire: WARNING! Taking the following Do not smoke and do not place any hot objects in the vicinity of fuel, Always stop the engine and let it cool for Never start the machine: a few minutes... -
Page 21: Starting And Stopping
STARTING AND STOPPING Starting and stopping Pull the starter handle (4): 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 WARN NG! Note the following before pull firmly and rapidly until the engine fires. - Page 22 STARTING AND STOPPING CAUTION! Do not pull the starter cord all the way out and Observe your surroundings and make sure that there do not let go of the starter handle when the cord is fully is no risk of people or animals coming into contact with extended.
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Page 23: Before Use
WORKING TECHNIQUES Before use: Basic safety rules Look around you: To ensure that people, animals or other things cannot affect your control of the machine. To make sure that none of the above might come within reach of 1'our saw or be injured by falling trees. Check that the chain brake works correctly and is not... - Page 24 WORKING TECHNIQUES Have control over the workpiece. If the pieces you intend to cut are small and light, they can jam in the saw chain and be thrown towards you. Even if this does not need to be a danger, you may be surprised Before moving your chain saw switch off the engine and lose control of the saw.
- Page 25 WORKING TECHNIQUES user. If the saw chain is jamming, the saw may be Terms pushed back at you. 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.
- Page 26 WORKING TECHNIQUES Limbing Turn the log and finish the cut from the opposite side. When limbing thick branches you should use the same approach as for cutting. Cut difficult branches piece by piece. The log is supported at one end. There is a high risk that it will split.
- Page 27 WORKING TECHNIQUES Felling direction Clearing the trunk and preparing your retreat The aim is to fell the tree in a position where you can limb Delimb the stem up to shoulder height. It is safer to work and cross-cut the log as easily as possible.You want it to from the top down and to have the tree between you and...
- Page 28 WORKING TECHNIQUES Next make the bottom cut so that it finishes exactly at the All control over the felling direction is lost if the felling end of the top cut. hinge is too narrow or non-existent, or if the directional cuts and felling cut are badly placed.
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Page 29: How To Avoid Kickback
WORKING TECHNIQUES Freeing a tree that has fallen badly necessary to reduce the tension and make the tree or branch break at the point of maximum tension. Freeing a "trapped tree" It is very dangerous to remove a trapped tree and there is high accident risk. - Page 30 WORKING TECHNIQUES was being used when the kickback zone of the bar Cutting the trunk into logs touched the object. Bee instructions under the heading Basic cutting technique. Kickback only occurs if the kickback zone of the bar touches an object. Limbing majority WARNING!
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Page 31: Maintenance
MAINTENANCE General Checking, maintaining servicing chain saw safety The user must only carry out the maintenance service work described in this manual. More extensive equipment work must be carried out by an authorised service workshop. Carburetor adjustment Your Husqvarna product has been designed and manufactured to specifications that reduce harmful... - Page 32 MAINTENANCE Checking the inertia brake release 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. With the engine turned off, hold the chain saw over a stump...
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Page 33: Muffler
MAINTENANCE Chain catcher Stop switch Check that the chain catcher is not damaged and is firmly Start the engine and make sure the engine stops when attached to the body of the chain saw. you move the step switch to the stop setting. CAUTION! The start/stop switch automatically... -
Page 34: Starter
MAINTENANCE use a muffler if the spark arrestor screen is missing Undo the bolt in the centre of the pulley and remove or defective. the drive disc (A), drive disc spring (B) and the pulley (C). Insert and secure a new starter cord in the starter pulley. -
Page 35: Air Filter
MAINTENANCE Air filter Replacing the return and drive springs Recoil spring The air filter must be regularly cleaned to remove dust and dirt in order to avoid: Lift up the starter pulley. See instructions under Carburettor malfunctions heading Changing a broken or worn starter cord. -
Page 36: Spark Plug
MAINTENANCE Spark plug Needle bearing lubrication The clutch drum has a needle bearing on the output shaft. The spark plug condition is influenced This needle bearing must be lubricated regularly. Incorrect carburetor adjustment. When lubricating, remove the clutch cover by loosening An incorrect fuel mixture (too much or incorrect type of... -
Page 37: Air Injection" Centrifugal Cleaning
MAINTENANCE Temperature =5°0 (23°F) or colder: "Air injection" centrifugal cleaning Centrifugal cleaning means the following: All air to the carburetor passes through the starter. Dirt and dust is pushed out by the cooling fan. For running the machine in cold weather or powder snow, a special cover is available,... -
Page 38: Lubricating The Bar Tip Sprocket
MAINTENANCE Maintenance schedule The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the Maintenance section. Daily maintenance Weekly maintenance Monthly maintenance Check the brake band on the chain On chain saws without a catalytic brake for wear. -
Page 39: Technical Data
TECHNICAL DATA Technical data 445e 450e Engine Cylinder displacement, cu.in/cm 3 2,79/45,7 2,79/45,7 3,06/50,2 3,06/50,2 Cylinder bore, inch/mm 1,65/42 1,65/42 1,73/44 1,73/44 Stroke, inch/mm 1,30/33 1,30/33 1,30/33 1,30/33 2700 2700 2700 2700 Idle speed, rpm 2,1 / 2,8 @ 9000 2,1 / 2,8 @ 9000 2,4/3,2 @ 9000 2,4/3,2 @ 9000... -
Page 40: Bar And Chain Combinations
TECHNICAL DATA Recommended original and replacement bar and chain combinations Following is a list of recommended cutting equipment for the Husqvarna chain saw models 445,445e, 450e and 450. The combinations of power head, bar and chain have been tested and found to be in accordance with the kickback and vibration requirements of ANSI B175.1-2000. - Page 41 FEDERAL EMiSSiON CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS charge to the owner at an approved Husqvarna Forest & Garden servicing dealer. If you have any questions OBLiGATiONS regarding your warranty rights and responsibilities, should contact your nearest authorized servicing dealer or The EPA (The US Environmental Protection Agency), call Husqvarna Forest &...
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Page 42: Contents Safety Precautions For Chain Saw Users
AMERICAN STANDARD SAFETY PRECAUTIONS Other safety precautions Safety precautions for chain saw users (ANSI B175.1-2000 Annex C_ with one hand! Serious injury to the operator, helpers, bystanders or any Kickback safety precautions combination 0f these persons may result from one-handed operation. - Page 43 1151381-95 Illlllllll lllll IIlllllllllllll IIll 2008=12=15...