Instruction/ maintenance manual of the product 42, 242XP, 246 Husqvarna
Go to page of 36
Operator´ s manual 42/242XP/246 101 89 26-26 Please read these instructions carefully and make sure you understand them before using the saw..
2 – English Symbols on the chain saw: CAUTION! Chain saws can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. Please read the instructions carefully and make sure you understand them before using the saw.
English – 3 CONTENTS Contents Key to symbols .......................................... 2 Safety instructions Personal protective equipment ........................ 4 Chain saw safety equipment ........................... 4 Inspecting, maintaining and servicing chain saw safety equipment .
4 – English ! CHAIN SA W SAFETY EQUIPMENT This section explains the various safety features of the saw, how they work, and basic inspection and maintenance you should carry out to ensure safe operation. (See the ”What is what?” section to find out where these components are on Your saw).
English – 5 1 Chain brake and front hand guard YOUR chain saw is equipped with a chain brake that is desig- ned to stop the chain immediately 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 kickback zone of the bar never touches any object.
6 – English 6 The way the chain brake is triggered, either manually or automatically, 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.
English – 7 ! 5 Vibration damping system Your chain saw is equipped with a vibration damping system that is designed to minimise vibrations and make operation easier. When you use a chain saw vibrations are generated by the uneven contact between the chain and the wood you are cutting.
8 – English ! 3 Checking the automatic brake Hold the chain saw over a stump or other firm object. Let go of the front handle so that the bar falls onto the stump. When the bar hits the stump the brake should be applied. Inspecting, maintaining and servicing chain saw safety equipment SPECIAL TRAINING IS REQUIRED to service and repair chain saws.
English – 9 SAFETY INSTRUCTIONS 4 Right hand guard Check that the right hand guard is not damaged and that there are no visible defects, such as cracks. 5 Vibration damping system Regularly check the vibration damping units for cracks or deformation Make sure the vibration damping units are securely attached to the engine unit and handles.
10 – English ! 7 Muffler Never use a chain saw that has a faulty muffler. Regularly check that the muffler is securely attached to the chain saw. If the muffler on your saw is fitted with a spark arrestor mesh this must be cleaned regularly. A blocked mesh will cause the engine to overheat and may lead to serious damage.
English – 11 ! SAFETY INSTRUCTIONS C Some terms that describe the bar and chain When the cutting equipment supplied with your saw becomes worn or damaged you will need to replace it. Use only the type of bar and chain recommended by us. See the ”Technical data” section to find out which equipment is recommended for your saw.
12 – English SAFETY INSTRUCTIONS ! 2 Sharpening your chain and adjusting raker clearance The risk of kickback is increased with a badly sharpened chain! A General information on sharpening cutting teeth • Never use a blunt chain.
English – 13 ! C General advice on setting raker clearance • When you sharpen the cutting teeth you reduce the RAKER CLEARANCE (cutting depth). To maintain cutting performance you must file back the raker teeth to the recommended height. See the ”Technical data” section to find the raker clearance for your saw chain.
14 – English 1 Undo the bar nuts that hold the clutch cover and chain brake, using the combination spanner. Then tighten the nuts by hand as tight as you can. 2 Raise the tip of the bar and stretch the chain by tightening the chain tensioning screw using the combination spanner.
English – 15 C Checking chain lubrication • Check the chain lubrication each time you refuel. Aim the tip of the saw at a light coloured surface about 20 cm away. After 1 minute running at 3/4 throttle you should see a distinct line of oil on the light surface.
16 – English H Bar Check regularly: • Whether there are burrs on the edges of the bar. Remove these with a file if necessary. • Whether the groove in the bar has become badly worn. Replace the bar if necessary. • Whether the tip of the bar is uneven or badly worn.
English – 17 ! 6 Take great care when you cut with the top edge of the bar, i.e. when cutting from the underside of the object. This is known as cutting on the push stroke.
18 – English SAFETY INSTRUCTIONS GENERAL SAFETY PRECAUTIONS 1 Chain saws are designed solely for cutting wood. The only cutting equipment that can be used with this chain saw are the combinations of bars and chains recommended in the ”Technical data” section.
English – 19 ! SAFETY INSTRUCTIONS GENERAL WORKING INSTRUCTIONS This section describes basic safety rules for using a chain saw. This information is no substitute for professional skills and experience. If you get into a situation where you feel unsafe, stop and seek expert advice (look under FORESTRY SERVICES in the telephone directory).
20 – English ! SAFETY INSTRUCTIONS Two factors decide whether the chain will jam or the log will split. The first is how the log is supported and the second is whether it is in tension. In most cases you can avoid these problems by cutting in two stages; from the top and from the bottom of the log.
English – 21 SAFETY INSTRUCTIONS 2 The log is supported at one end. There is a high risk that it will split. A Start by cutting from below (about 1/3 of the way through). B Finish by cutting from above so that the two cuts meet. 3 The log is supported at both ends.
22 – English SAFETY INSTRUCTIONS 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.
English – 23 ! We recommend that you use a bar that is longer than the diameter of the tree, so that you can make the FELLING CUT and DIRECTIONAL CUT with single cutting stokes. (See ”Technical data” to find out which lengths of bar are recommended for your saw).
24 – English WHA T IS WHA T? What is what? 1. Cylinder cover. 2. Front handle. 3. Front hand guard. 4. Starter cover. 5. Chain oil tank. 6. Starter handle. 7. Adjuster screw, carburettor. 8. Choke control/Start throttle lock. 9. Rear handle. 10. Stop switch.
English – 25 Hold up the tip of the bar and tighten the chain. The chain is correctly tensioned when there is no slack on the underside of the bar, but it can still be turned easily by hand. Hold up the bar tip and tighten the bar nuts with the combination wrench.
26 – English Fuelmix 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 petrol and two-stroke engine oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained.
English – 27 Fuelling Taking the following precautions, will lessen the risk of fire. • Do not smoke or place warm objects in the vicinity of the fuel. • Always shut off the engine before refuelling. • Slowly open the fuel cap, when filling fuel, so that possible overpressure is slowly released.
28 – English Start and stop WARNING! • Never start the saw engine without the bar, chain and clutch cover (chain brake) assembled - or else the clutch can come loose and cause personal injuries. • Always move the saw away from the fueling area before starting.
English – 29 ! Carburettor Functioning, Basic setting, Final setting WARNING! Do not start the saw without the bar, chain and clutch cover (chain brake) assembled. If you do, the clutch might come loose and cause severe injuries. Operation • The carburettor governs the engine speed via the throttle.
30 – English Changing a broken or worn starter cord • Loosen the screws, that hold the starter device against the crankcase and remove the starter device. • Pull out the cord approx. 30 cm and lift it up into the notch in the pulley. Zero-set the recoil spring by letting the pulley rotate slowly backwards.
English – 31 Muffler The muffler is designed in order 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.
32 – English MAINTENANCE Needle bearing maintenance The clutch drum is equipped with one of the following chain sprockets: • Spur sprocket (A) (the chain sprocket is welded on the drum) • Rim sprocket (B) (exchangeable) Both versions have built-in needle bearing at the drive shaft, whitch has to be greased regularly (once a week).
English – 33 Weekly maintenance: 1. Check that the AV elements are not soft or torn. 2. Lubricate the clutch drum bearing. 3. File off burrs, if any, on the sides of the bar. 4. Clean the spark plug and check the gap. The correct gap is 0.5 mm (.020 inch).
34 – English 42 2,6/42 1,65/42 1,18/30 2 700 14 500 2,1/ 9 300 SEM AM7 Champion RCJ 7Y 0.020/0,5 Walbro HDA98 1,1/0,52 3-7 0,57/0,27 Automatic 10,3/4,7 Noise levels Equivalent (see note 1) noise pressure level at operator’s ear, measured according to relevant international standards, dB(A).
English – 35 246 2,8/46 1,73/44 1,18/30 2 700 15 000 2,3/ 9 000 CAT: 2,3/ 9 300 SEM AM7 Champion RCJ 7Y 0,020/0,5 Walbro HDA98 1,1/0,52 3-7 0,57/0,27 Automatic 10,3/4,7 CAT: 11,0/5,0 TECHNICAL DA T .
´*2|^¶6g¨.
An important point after buying a device Husqvarna 42, 242XP, 246 (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 42, 242XP, 246 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 42, 242XP, 246 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Husqvarna 42, 242XP, 246 you will learn all the available features of the product, as well as information on its operation. The information that you get Husqvarna 42, 242XP, 246 will certainly help you make a decision on the purchase.
If you already are a holder of Husqvarna 42, 242XP, 246, 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 42, 242XP, 246.
However, one of the most important roles played by the user manual is to help in solving problems with Husqvarna 42, 242XP, 246. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Husqvarna 42, 242XP, 246 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
