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34

 – English

Engine

Cylinder volume, cu.in/cm

3

Cylinder bore, inch/mm
Stroke, inch/mm
Idle speed, rpm
Power, kW/rpm

Ignition system

Manufacture
Type of ignition system
Spark plug

Electrode gap, inch/mm

Fuel and lubrication
system

Manufacturer
Carburetor type
Fuel capacity, US pint/litre
Oil pump capacity at
  6000 rpm, ml/min
Oil capacity, US pint/litre
Type of oil pump

Weight

Without bar and chain, Lbs/kg

Chain/bar

Standard bar length, inches/cm
Recommended bar lengths,
 inches/cm
Usable cutting length,
 inches/cm
Chain speed at max.power,
 m/sec

Pitch, inches/mm
Thickness of drive link,
 inch/mm

Number of teeth on drive
 sprocket

2045

2,67/44
1,65/42
1,26/32
2 500
2,2/ 9 000

Phelon
CD
Champion
RCJ 7Y
NGK
BPMR 7A
0,02/0,5

Zama
C IQ-EL5
1,06/0,5

6,0
0,53/0,25
Automatic

10,3/4,7

15/38

13-20/33-50

12-19/31-48

17,3

0,325"/8,25

0,050"/1,3
0,058"/1,5

7

2050

3,0/49
1,73/44
1,26/32
2 500
2,3/ 9 000

Phelon
CD
Champion
RCJ 7Y
NGK
BPMR 7A
0,02/0,5

Zama
C IQ-EL5
1,06/0,5

6,0
0,53/0,25
Automatic

10,3/4,7

15/38

13-20/33-50

12-19/31-48

17,3

0,325"/8,25

0,050"/1,3
0,058"/1,5

7

Recommended original and replacement bar
and chain combinations

Following is a list of recommended cutting equipment for
the Jonsered chain saw models 2045 and 2050. The
combinations of power head, bar and chain have been
investigated in accordance with the kickback and vibration
requirements of ANSI B 175.1–1991.

The guide bar nose radius is determined by either the
maximum number of teeth in the nose sprocket or the
corresponding maximum nose radius of a solid bar.

The following list is the chain saw manufacturers
recommendations. There may be other combinations
available, which will also achieve kickback protection.

As we are listing the maximum guide bar nose radius, you
may use a guide bar with smaller nose radius than in our
list. For guide bars of the same length, all sprocket-nose
guide bars of the same pitch and having the same number
of sprocket teeth may be considered to have equivalent
kickback energy. A hard nose bar having the same length
and nose radius as a sprocket-bar may be considered to
have equivalent or less kickback energy than the sprocket-
nose bar.

Low kickback saw chain is a chain which has only met the
kickback performance requirements of ANSI B 175.1 safety
requirements for gasoline powered chain saws when
tested on the representative sample of chain saws below
3.8 cu. in. specified in ANSI 175.1. We recommend that
you as a replacement use the listed chains or "Low
kickback saw chains" which are available at your dealer.

Guide bar

Saw chain

Length

Pitch

Max nose

inch

inch

radius

13

0,325

10T

Jonsered S30 or Oregon 95VP

15

0,325

10T

or Total/Sabre 528PS

16

0,325

10T

18

0,325

10T

15

0,325

10T

Jonsered S25 or Oregon 21VB

16

0,325

10T

18

0,325

10T

20

0,325

12T

TECHNICAL DATA

0,058"/1,5mm

S25

21VB

528PS

0,050"/1,3mm

S30, 95VP

20VB

520PS

Note: For the chains above you are free to choose between 0,050" and
0,058" gauge drive link for the corresponding bar, see the table below.

´*xmQ¶5%¨

Summary of Contents for 2149

Page 1: ...Please read these instructions carefully and make sure you understand them before using the saw Operator s manual EPA ...

Page 2: ... them before using the saw Always wear Approved protective helmet Approved hearing protection Protective glasses or visor Both of the operator s hands must be used to operate the chain saw Please see page 30 in your Chain saw operator s safety manual Never operate a chain saw holding it with one hand only Please see page 30 in your Chain saw operator s safety manual Contact of the guide bar tip wi...

Page 3: ...nd adjusted See page 25 Refuel and start the saw Check the carburetor setting See pages 26 29 Do not use the saw until sufficient chain oil has reached the chain see page 14 IMPORTANT If the carburetor mixture is too lran it greatly increases the risk of engine failure Poor maintenance of the air filter will cause carbon build up on the spark plug and lead to difficult starting If the chain is bad...

Page 4: ...gerous tool if used carelessly or incorrectly and can cause serious even fatal injuries It is very important that you read and understand these instructions PERSONAL PROTECTIVE EQUIPMENT MOST CHAIN SAW ACCIDENTS HAPPEN WHEN THE CHAIN TOUCHES THE OPERA TOR You must wear approved protective equipment whenever you use a chain saw Personal protective equipment cannot eliminate the risk of injury but i...

Page 5: ...ed mechanism that tightens the Brake Band C around the engine drive system D Clutch Drum SAFETY INSTRUCTIONS 2 The front hand guard is not designed solely to activate the chain brake Another important safety feature is that it prevents the chain from hitting your left hand if you lose your grip on the front handle 3 You can also use the chain brake as a temporary brake when you change position or ...

Page 6: ... but there are certain factors to remember see point 6 above 2 Throttle lock The throttle lock is designed to prevent accidental opera tion of the throttle control When you press the lock A i e when you grasp the handle it releases the throttle trigger B When you release the handle the throttle trigger and the throttle lock both move back to their original positions This movement is controlled by ...

Page 7: ...perience symptoms of overexposure to vibration These symptoms include numbness loss of feeling tingling pricking pain loss of strength changes in skin colour or condition These symptoms normally appear in the fingers hands or wrists SAFETY INSTRUCTIONS The exhaust fumes from the engine are hot and may contain sparks which can start a fire Never start the saw indoors or near combustible material Th...

Page 8: ... to service and repair chain saws This is especially true of chain saw safety equipment If your chain saw fails any of the checks described below take it to your SERVICE AGENT When you buy any of our products we guarantee the availability of professional repairs and service If the retailer who sells your saw is not a SERVICING DEALER ask him for the address of your nearest SERVICE AGENT 1 Chain br...

Page 9: ...1 Make sure the throttle control is locked at the idle setting when you release the throttle lock 2 Press the throttle lock and make sure it returns to its original position when you release it 3 Check that the throttle control and throttle lock move freely and that the return springs work properly 4 Start the saw and apply full throttle Release the throttle control and check that the chain stops ...

Page 10: ...he risk of kickback Reduce the risk of the chain breaking or jumping Obtain maximum cutting performance Extend the life of cutting equipment The 5 basic rules 1 Only use cutting equipment recommended by us See the Technical data section 2 Keep the chain cutting teeth properly sharpened Follow our instructions and use the recommended file gauge A damaged or badly sharpened chain increases the risk ...

Page 11: ...EL OF KICKBACK REDUCTION The level of kickback reduction offered by a chain is indicated by its model number See the Technical data section to find the model numbers of chains that are recommended for use with your saw 1 Cutting equipment designed to minimise kickback Faulty cutting equipment or the wrong combination of bar and chain increases the risk of kickback Use only the bar and chain combin...

Page 12: ...data section for information about sharpening your saw chain It is very difficult to sharpen a chain correctly without the right equipment We recommend you use a file gauge This will help you obtain the maximum kickback reduction and cutting performance from your chain The following faults will increase the risk of kickback considerably FILE ANGLE TOO LARGE CUTTING ANGLE TOO SMALL FILE DIAMETER TO...

Page 13: ...sharpened We recommend that you adjust the raker clearance every third time you sharpen the chain NOTE This recommendation assumes that the length of the cutting teeth is not reduced excessively To adjust the raker clearance you will need a FLAT FILE and a RAKER GAUGE Place the gauge over the raker lip Place the file over the part of the lip that protrudes through the gauge and file off the excess...

Page 14: ...have been chosen so that the saw will run out of fuel before running out of oil This means that you should never run with a dry chain 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 carburettor as recommended a weak mixture may mean that the fuel lasts longer than the oil You should also us...

Page 15: ... each time you refuel Use the special grease gun and a good quality bearing grease SAFETY INSTRUCTIONS E Lubricating the clutch drum bearing Between the engine drive shaft and the clutch drum is a needle bearing that must be lubricated daily Use the specially designed grease gun and a good quality bearing grease F Checking wear on cutting equipment Saw chain Check the saw chain daily for Visible c...

Page 16: ...ee section on General working instructions CHECK THAT ALL SAFETY FUNCTIONS ARE WORKING see section on General working instructions and General safety precautions SAFETY INSTRUCTIONS HOW TOAVOID KICKBACK Kickback can happen very suddenly and violently kicking the saw bar and chain back at the user If this happens when the chain is moving it can cause very serious even fatal injuries It is vital you...

Page 17: ...the wrong cutting equipment or a chain that is not sharpened correctly The wrong combination of bar and chain can increase the risk of kickback General rules 1 If you understand what kickback is and how 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 very sudden and violent 2 Always hol...

Page 18: ...nd Then grasp the starter handle with your right hand and pull the starter cord 7 FUEL SAFETY Refuelling fuel mixture storage Fuel and fuel vapour are highly inflammable Take care when handling fuel and chain oil Keep away from naked flames and do not breathe in fuel vapour Never try to refuel the saw while it is running Make sure there is plenty of ventilation when refuelling or mixing fuel 2 str...

Page 19: ... rain strong wind intense cold etc Working in cold 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 Check the area around you for possi...

Page 20: ...nish the cut Maintain full throttle but be prepared in case the chain snatches A If it is possible to turn the log you should stop cutting about 2 3 of the way through B Turn the log and finish the cut from the opposite side 2 Basic cutting technique General Always use full throttle when cutting Reduce the speed to idle after every cut running the engine for too long at full throttle without any l...

Page 21: ...e tree in the best possible position for subsequent limbing and cross cutting You want it to fall on ground where you can move about safely The main point to avoid is letting the tree fall onto another tree It can be both difficult and dangerous to remove a tree in such a position see point 4 in this section Once you have decided which way you want the tree to fall you must judge which way the tre...

Page 22: ... weight or with the aid of a FELLING WEDGE or BREAKING BAR C Clearing the trunk and preparing your retreat Remove any branches that are in the way To do this it is best to work from the top down and keep the trunk between you and the chain saw Never limb above shoulder height Remove any undergrowth from the base of the tree and check the area for obstacles stones branches holes etc so that you hav...

Page 23: ...fely In complicated situations the only safe method is to put aside your chain saw and use a winch SAFETY INSTRUCTIONS General advice a Position yourself so that you will be clear of the tree or branch when it springs free b Make one or more cuts at or near the BREAKING POINT Make as many cuts of sufficient depth as necessary to reduce the tension and make the tree or branch break at the BREAKING ...

Page 24: ...gnition on off switch 11 Fuel tank 12 Muffler 13 Bar tip sprocket 14 Saw chain 15 Saw bar 16 Bumper 17 Chain catcher Catches chain if it jumps or breaks 18 Clutch cover 19 Right hand guard Protects right hand if chain breaks or jumps 20 Throttle control 21 Throttle lock Prevents accidental operation of throttle control 23 Combination spanner 24 Chain tensioning screw 25 Operator s manual 26 Bar gu...

Page 25: ... adjuster pin in the hole on the bar Check that the drive links of the chain fit correctly on the drive sprocket and that the chain is in the groove on the bar Tighten the bar nuts finger tight Tension the chain by using the combination wrench Turn the chain adjuster screw clockwise The chain should be tensioned until it fits snugly on the underside of the bar ASSEMBLY Hold up the tip of the bar a...

Page 26: ...the air temperature In temperatures below 0o C 32o F some oils become too viscous This can overload the oil pump and result in damage to the oil pump components Contact your servicing dealer when choosing chain oil Always provide for good ventilation when handling fuel IMPORTANT The chain saw is equipped with a two stroke engine and must always been run using a mixture of gasoline and two stroke e...

Page 27: ...en the fuel cap carefully after fuelling Always move the saw from the fuelling area before starting Clean around the fuel cap Clean the fuel and chain oil tanks regularly The fuel filter should be changed at least once a year Contamination in the fuel tanks causes malfunction Make sure the fuel is well mixed by shaking the container before fuelling The volume of chain oil and fuel tanks are adjust...

Page 28: ...gnition switch to startposition CHOKE Set the choke control in choke position FAST IDLE Combined choke fast idle is received when the choke is moved to choke position Warm engine Use the same procedure as for starting cold engine but without choke Fast idle is recived by first set the choke control in choke position and then back again Start and stop WARNING Never start the saw engine without the ...

Page 29: ...starts to rotate Then turn counter clockwise until the chain stops A correctly adjusted idle speed setting occurs when the engine runs smoothly in every position It should also be good margin to the rpm when the chain starts to rotate High speed needle H The high speed needle H influences the power of the saw A too lean adjusted high speed needle H high speed needle H closed too much gives overrev...

Page 30: ...m and lift it up into the notch in the pulley Zero set the recoil spring by letting the pulley rotate slowly backwards Undo the screw in the centre of the pulley and remove the pulley Insert and fasten a new starter cord in the pulley Wind approx 3 turns of the starter cord on to the pulley Assemble the starter pulley against the recoil spring so the end of the spring engages to the pulley Fit the...

Page 31: ...bnormal fuel consumption Clean the air filter daily or more often if the air is exceptionally dusty in the working area Disassemble the air filter by removing the cylinder cover and unscrew the filter When reassembling make sure that the filter is tight against the filter holder Clean the filter by brushing or shaking it A more thorough cleaning of the filter is obtained by washing it in water and...

Page 32: ...on If any binding occurs or if engine fails to return to idle the saw should be taken to your dealer before it is used again Also be sure that the trigger cannot be pulled until the throttle trigger lockout is depressed 2 Clean the chain brake and check its function according to the instructions Make sure that the chain catcher is undamaged Otherwise replace it immediately 3 Clean or replace the a...

Page 33: ...oling fins on the cylinder 7 Clean or change the screen in the Muffler 8 Clean the carburetor body and air box Monthly maintenance 1 Check the brake band on the chain brake for wear 2 Check the clutch centre clutch drum and clutch spring for wear 3 Clean the outside of the carburetor 4 Change the fuel filter 5 Flush the inside off the fuel tank with gasoline 6 Flush the inside of the oil tank with...

Page 34: ...radius is determined by either the maximum number of teeth in the nose sprocket or the corresponding maximum nose radius of a solid bar The following list is the chain saw manufacturers recommendations There may be other combinations available which will also achieve kickback protection As we are listing the maximum guide bar nose radius you may use a guide bar with smaller nose radius than in our...

Page 35: ...AINTENANCE STATEMENT The owner is responsible for the performance of all required maintenance as defined in the operator s manual YOUR WARRANTY RIGHTS AND OBLIGATIONS The EPA The US Environmental Protection Agency and Husqvarna AB are pleased to explain the emissions control system warranty on your 1999 and later small nonroad engine In U S new small nonroad engines must be designed built and equi...

Page 36: ...108 87 74 95 1998W48 xmQ 5 ...

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