Instruction/ maintenance manual of the product 445 EPA II, 445e EPA II, 450e EPA II Husqvarna
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E E E E n n n n g g g g l l l l i i i i s s s s h h h h 445 EP A II 445e EP A II 450e EP A II Oper ator’ s manual Please r ead the operator’ s manual carefully and mak e sure y ou understand the instructions before using the machine.
2 – English KEY T O SYMBOLS Symbols on the mac hine: W ARNING! Chain saws can be dangerous! Careless or improper use can result in serious or f atal injur y to the operator or others. Please read the operator’ s manual carefully and make sure y ou understand the instructions before using the machine .
English – 3 CONTENTS Contents KEY T O SYMBOLS Symbols on the machine: .............................................. 2 Symbols in the operator’ s manual: ................................ 2 CONTENTS Contents ........................................
4 – English INTR ODUCTION Dear customer! Cong ratulations on y our choice to buy a Husqv ar na product! Husqv ar na is based on a tradition that dates bac k to 1689, when the Swedish King Karl XI ordered the construction of a factory on the banks of the Huskvarna River , f or production of muskets .
English – 5 WHA T IS WHA T? What is what on the chain sa w? 1 Cylinder cov er 2 Decompression valv e 3 Air purge 4 Star t reminder 5 Combined stop s witch and choke control 6 Rear handle 7 Inf or ma.
6 – English GENERAL SAFETY PRECA UTIONS Bef ore using a new c hain saw • Please read this manual carefully . • Check that the cutting equipment is correctly fitted and adjusted. See instructions under the heading Assembly . • Refuel and star t the chain saw .
English – 7 GENERAL SAFETY PRECA UTIONS to be be yond y our capability . If you still f eel uncer tain about operating procedures after reading these instructions, y ou should consult an e xper t before contin uing. Do not hesitate to contact your dealer or us if y ou hav e any questions about the use of the chain saw .
8 – English GENERAL SAFETY PRECA UTIONS • This mov ement activates a spring-loaded mechanism that tightens the brak e band (C) around the engine dr iv e system (D) (clutch drum). • The front hand guard is not designed solely to activate the chain brak e.
English – 9 GENERAL SAFETY PRECA UTIONS Will m y hand alwa ys activ ate the chain brake during a kickbac k? No . It tak es a cer tain force to mo ve the hand guard f orward. If your hand only lightly touches the front guard or slips o ver it, the f orce may not be enough to trigger the chain brak e.
10 – English GENERAL SAFETY PRECA UTIONS Cutting hardwoods (most broadleaf trees) creates more vibration than cutting softwoods (most conif ers). Cutting with cutting equipment that is blunt or f aulty (wrong type or badly shar pened) will increase the vibration le v el.
English – 11 GENERAL SAFETY PRECA UTIONS Cutting equipment designed to reduce kickbac k The only wa y to a void kic kback is to make sure that the kickbac k zone of the bar ne ver touches an ything.
12 – English GENERAL SAFETY PRECA UTIONS • The cutting par t of the chain is called the cutter and consists of a cutting tooth (A) and the depth gauge (B). The cutters cutting depth is determined by the difference in height between the two (depth gauge setting).
English – 13 GENERAL SAFETY PRECA UTIONS Adjustment of depth gauge setting • The cutting teeth should be newly sharpened before adjusting the depth gauge setting. W e recommend that you adjust the depth gauge setting e v er y third time you shar pen the cutting teeth.
14 – English GENERAL SAFETY PRECA UTIONS • Adjust the tension on the chain by turning the wheel down (+) f or tighter tension and up (-) to loosen the tension. • Tighten the bar clutch by turning the knob clockwise . • F old the knob back in to lock the tensioning.
English – 15 GENERAL SAFETY PRECA UTIONS • Check that the bar tip sproc ket turns freely and that the lubricating hole in the tip sprocket is not b lock ed.
16 – English ASSEMBL Y Fitting the bar and c hain 445 Check that the chain br ake is in disengaged position b y moving the front hand guard to wards the front handle. Remov e the bar nuts and remov e the clutch cov er (chain brak e). T ake off the transportation r ing (A).
English – 17 ASSEMBL Y T ension 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.
18 – English FUEL HANDLING Fuel Note! The machine is equipped with a two-stroke engine and must alwa ys be run using a mixture of gasoline and two- stroke oil. It is impor tant to accurately measure the amount of oil to be mix ed to ensure that the correct mixture is obtained.
English – 19 FUEL HANDLING 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 w ell mixed b y shaking the container bef ore refuelling.
20 – English ST AR TING AND ST OPPING Starting and stopping Cold engine Starting: The chain brake should be activ ated when star ting the chain saw . Activ ate the chain brake b y pushing the front hand guard f orwards. Ignition; choke (A): Set the chok e control in the choke position by pulling the red control outw ard - upward (1).
English – 21 ST AR TING AND ST OPPING Note! Pull the front hand guar d towards the fr ont handle. The chain brake is now disenga ged. Y our saw is ready for use. • Ne ver star t a chain sa w unless the bar , chain and all cov ers are fitted correctly .
22 – English W ORKING TECHNIQ UES Bef ore use: 1 Check that the chain br ake works correctly and is not damaged. 2 Check that the rear right hand guard is not damaged. 3 Check that the throttle loc kout works correctly and is not damaged. 4 Check that the stop s witch works correctly and is not damaged.
English – 23 W ORKING TECHNIQ UES General rules 1 If you understand what kic kback is and ho w it happens then you can reduce or eliminate the element of surprise. By being prepared you reduce the risk. Kickback is usually quite mild, but it can sometimes be v er y sudden and violent.
24 – English W ORKING TECHNIQ UES Basic cutting technique General • Alwa ys use full throttle when cutting! • Reduce the speed to idle after e very cut (r unning the engine f or too long at full throttle without any load, i.e. without any resistance from the chain during cutting, can lead to serious engine damage).
English – 25 W ORKING TECHNIQ UES T ur n the log and finish the cut from the opposite side. The log is supported at one end. There is a high r isk that it will split. Star t by cutting from belo w (about 1/3 of the wa y through). Finish by cutting from abo ve so that the two cuts meet.
26 – English W ORKING TECHNIQ UES Remo v e any undergro wth from the base of the tree and check the area f or obstacles (stones, branches, holes , etc.) so that you ha ve a clear path of retreat when the tree starts to fall. Y our path of retreat should be roughly 135 degrees a wa y from the intended f elling direction.
English – 27 W ORKING TECHNIQ UES Freeing a tree that has fallen badl y Freeing a ”trapped tree” It is v er y dangerous to remov e a trapped tree and there is high accident risk. Ne ver try to fell the tree that is trapped. Ne ver work in the risk zone of the hanging trapped tree .
28 – English W ORKING TECHNIQ UES Limbing Mak e sure that y ou can stand and mov e about safely . Work on the left side of the trunk. Work as close as possib le to the chain saw f or maximum control. If possible, let the w eight of the chain saw rest on the trunk.
English – 29 MAINTENANCE General The user must only carry out the maintenance and ser vice work described in this manual. More e xtensive work must be carried out by an authorised ser vice workshop . Carb uretor adjustment Y our Husqvarna product has been designed and manuf actured to specifications that reduce har mful emissions.
30 – English MAINTENANCE Checking the inertia brake release With the engine turned off, hold the chain sa w ov er a stump or other firm object. Let go of the front handle so that the bar drops tow ards the stump as the chain saw rotates around the rear handle.
English – 31 MAINTENANCE Chain catcher Check that the chain catcher is not damaged and is firmly attached to the body of the chain saw . Right hand guar d Chec k that the right hand guard is not damaged and that there are no visible def ects, such as cr acks.
32 – English MAINTENANCE Starter Replacing the starter cord • Loosen the screws that hold the starter against the crankcase and remov e the star ter . • Pull out the cord appro x. 30 cm (12 inches) and hook it into the notch in the rim of the pulley .
English – 33 MAINTENANCE Fitting the starter • T o fit the star ter , first pull out the star ter cord and place the star ter in position against the crankcase . Then slowly release the star ter cord so that the pulley engages with the pawls . • Fit and tighten the screws that hold the starter .
34 – English MAINTENANCE Cooling system T o keep the working temperature as low as possib le 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 .
English – 35 MAINTENANCE Maintenance sc hedule The f ollowing is a list of the maintenance that must be perf ormed on the machine. Most of the items are described in the Maintenance section. Daily maintenance W eekly maintenance Monthly maintenance Clean the outside of the machine .
36 – English TECHNICAL D A T A T echnical data 445 445e 450e Engine Cylinder displacement, cu.in/cm 3 2,79/45,7 2,79/45,7 3,06/50,2 Cylinder bore, inch/mm 1,65/42 1,65/42 1,73/44 Stroke , inch/mm 1,.
English – 37 TECHNICAL D A T A Recommended original and replacement bar and c hain combinations F ollowing is a list of recommended cutting equipment f or the Husqvarna chain saw models 445, 445e and 450e.
38 – English FEDERAL EMISSION CONTR OL W ARRANTY ST A TEMENT ´®z+RB3¶55¨ ´®z+RB3¶55¨ Y OUR W ARRANTY RIGHTS AND OBLIGA TIONS The EP A (The US Environmental Protection Agency), Environment Canada and Husqv arna Forest & Garden are pleased to e xplain the emissions control system warranty on your 2001 and later small nonroad engine .
English – 39 AMERICAN ST AND ARD SAFETY PRECA UTIONS Safety precautions f or chain sa w users (ANSI B 175.1-2000 Anne x C) Kic kback safety precautions With a basic understanding of kic kback, y ou can reduce or eliminate the element of sur prise. Sudden sur prise contributes to accidents.
´®z+RB3¶55¨ 2007-03-16 ´®z+RB3¶55¨ 1150341-95.
An important point after buying a device Husqvarna 445 EPA II, 445e EPA II, 450e EPA II (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Husqvarna 445 EPA II, 445e EPA II, 450e EPA II yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Husqvarna 445 EPA II, 445e EPA II, 450e EPA II - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Husqvarna 445 EPA II, 445e EPA II, 450e EPA II you will learn all the available features of the product, as well as information on its operation. The information that you get Husqvarna 445 EPA II, 445e EPA II, 450e EPA II will certainly help you make a decision on the purchase.
If you already are a holder of Husqvarna 445 EPA II, 445e EPA II, 450e EPA II, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Husqvarna 445 EPA II, 445e EPA II, 450e EPA II.
However, one of the most important roles played by the user manual is to help in solving problems with Husqvarna 445 EPA II, 445e EPA II, 450e EPA II. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Husqvarna 445 EPA II, 445e EPA II, 450e EPA II along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
