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340/345/350
Operator's manual (CARB, EPA)
Please read these instructions carefully and make
sure you understand them before using the saw.
101 90 07-95
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KEY TO SYMBOLS Symbols CAUTION! Chain saws can be dangerous! Careless or incorrect use can result in Switch off the engine by moving the stop serious or fatal injury to the operator or switch to the STOP position before others. carrying out any checks or maintenance. Please read the instructions carefully and make sure you understand them before using the saw. Always wear approved protective gloves. Always wear: • Approved protective helmet • Approved hearing protection • Protective glasses or v
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CONTENTS Before using a new saw Contents • Read the instructions carefully. • Check cutting equipment is correctly fitted and adjusted. See page 25. Key to symbols ............................................................... 2 • Refuel and start the saw. Check the carburetor settings. Safety instructions See pages 26-29. Personal protective equipment ............................................ 4 • Do not use the saw until sufficient chain oil has reached the chain, see page 14. Chain saw saf
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SAFETY INSTRUCTIONS PERSONAL PROTECTIVE EQUIPMENT CHAIN SAW SAFETY EQUIPMENT This section explains the various safety features of the saw, how they work, and basic inspection and maintenance you MOST CHAIN SAW ACCIDENTS HAPPEN should carry out to ensure safe operation. (See the ”What is WHEN THE CHAIN TOUCHES THE OPERA- ! what?” section to find out where these components are on Your TOR. You must wear approved safety saw). equipment whenever you use a chain saw. Personal safety equipment cannot
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SAFETY INSTRUCTIONS 3 You can also use the 1 Chain brake and front hand guard chain brake as a YOUR chain saw is equipped with a chain brake that is desig- temporary brake when you ned to stop the chain immediately if you get a kickback. change position or if you The chain brake reduces the risk of accidents, but only You can put the saw down for a prevent them. short time. You should also apply the chain brake Take care when using your manually if there is a risk saw and make sure the of the ch
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SAFETY INSTRUCTIONS 6 The way the chain brake is triggered, either manually or 2 Throttle lock automatically, depends on the force of the kickback and the The throttle lock is designed position of the chain saw in relation to the object that the to prevent accidental opera- kickback zone of the bar strikes. tion of the throttle control. When you press the lock (A) (i.e. when you grasp the If you get a violent A handle) it releases the throttle kickback while the trigger (B). kickback zone of the
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SAFETY INSTRUCTIONS 5 Vibration damping system 6 Stop switch Your chain saw is equipped Use the stop switch to switch with a vibration damping off the engine. 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. Cutting hardwoods (most broadleaf trees) creates more vibration than cutting softwoods (most conifers). Cutting with a chain that is blunt or fault
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SAFETY INSTRUCTIONS 3 Checking the inertia brake release Inspecting, maintaining and servicing chain saw safety equipment SPECIAL TRAINING IS REQUIRED to service Hold the chain saw over a and repair chain saws. This is especially true stump or other firm object. of chain saw safety equipment. If your chain ! Let go of the front handle saw fails any of the checks described below so that the bar falls onto take it to your SERVICE AGENT. the stump. When you buy any of our products we guarantee the
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SAFETY INSTRUCTIONS 2 Throttle lock 4 Right hand guard 1 Make sure the throttle Check that the right hand control is locked at the guard is not damaged and idle setting when you that there are no visible release the throttle lock. defects, such as cracks. 2 Press the throttle lock and 5 Vibration damping system make sure it returns to its original position when you release it. Regularly check the vibration damping units for cracks or deformation 3 Check that the throttle control and throttle loc
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SAFETY INSTRUCTIONS 7 Muffler CUTTING EQUIPMENT Never use a chain saw This section describes how to choose and maintain your cutting that has a faulty muffler. equipment in order to: • Reduce the 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! Regularly check that the See the ”Technical data” muffler is securely section. attached to
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SAFETY INSTRUCTIONS C Some terms that describe the bar and chain 1 Cutting equipment designed to minimise When the cutting equipment supplied with your saw becomes kickback worn or damaged you will need to replace it. Use only the type of bar and chain recommended by us. See the ”Technical data” Faulty cutting equipment or the wrong section to find out which equipment is recommended for your combination of bar and chain increases the saw. risk of kickback. Use only the bar and chain ! combinatio
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SAFETY INSTRUCTIONS It is very difficult to sharpen a 2 Sharpening your chain and adjusting chain correctly without the raker clearance right equipment. We recommend you use a file The risk of kickback is increased with a badly gauge. This will help you sharpened chain! obtain the maximum kickback ! reduction and cutting performance from your chain. A General information on sharpening cutting teeth • Never use a blunt chain. When the chain is blunt you have to exert more pressure to force the b
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SAFETY INSTRUCTIONS D Setting the raker clearance C General advice on setting raker clearance • When you sharpen the cutting teeth you reduce the RAKER CLEARANCE (cutting depth). To maintain • Before setting the raker clearance the cutting teeth should be cutting performance you newly sharpened. must file back the raker We recommend that you adjust the raker clearance every teeth to the recommended third time you sharpen the chain. NOTE! This height. recommendation assumes that the length of th
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SAFETY INSTRUCTIONS 4 Lubricating cutting equipment Poor lubrication of cutting equipment may cause the chain to snap and lead to serious, 1 Undo the bar nuts that ! even fatal injuries. hold the clutch cover and chain brake, using the combination spanner. Then tighten the nuts by A Chain oil hand as tight as you can. • Chainsaw chain oil must demonstrate good adhesion to the chain and also maintain its flow caracteristics regardless of whether it is warm summer or cold winter weather. 2 Raise t
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SAFETY INSTRUCTIONS C Checking chain lubrication E Needle bearing maintenance • Check the chain lubrication each time you refuel. A The clutch drum is equipped Aim the tip of the saw at a with one of the following light coloured surface about chain sprockets: 20 cm away. After 1 minute running at 3/4 throttle you • Spur sprocket (A) (the chain should see a distinct line of sprocket is welded on the oil on the light surface. drum) • Rim sprocket (B) B (exchangeable) Both versions have built-in
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SAFETY INSTRUCTIONS H Bar HOW TO AVOID 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 ! Check regularly: moving it can cause very serious, even fatal injuries. It is vital you understand what causes kickback and that you can avoid it by taking • Whether there are burrs on care and using the right working technique. the edges of the bar. Remove these with a file if necessary. What is kickback? The word k
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SAFETY INSTRUCTIONS 6 Take great care when you General rules cut with the top edge of 1 If you understand what kickback is and how it happens then the bar, i.e. when cutting you can reduce or eliminate the element of surprise. By from the underside of the being prepared you reduce the risk. Kickback is usually object. This is known as quite mild, but it can sometimes be very sudden and cutting on the push violent. stroke. The chain tries to push the saw back towards the user. 2 Always hold the s
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SAFETY INSTRUCTIONS 7 FUEL SAFETY GENERAL SAFETY PRECAUTIONS (Refuelling, fuel mixture, storage.) 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 Fuel and fuel vapour are highly inflammable. ”Technical data” section. Take care when handling fuel and chain oil. ! Keep away from naked flames and do not 2 Never use a chain saw if breathe in fuel vapour. you are tired, if you
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SAFETY INSTRUCTIONS 4 Check the area around GENERAL WORKING INSTRUCTIONS you for possible obstacles such as roots, rocks, This section describes basic safety rules for branches, ditches, etc., in using a chain saw. This information is no case you have to move substitute for professional skills and ! suddenly. Take great care experience. If you get into a situation where when working on sloping you feel unsafe, stop and seek expert advice ground. (look under FORESTRY SERVICES in the telephone dir
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SAFETY INSTRUCTIONS Two factors decide whether the chain will jam or the log will 2 Basic cutting technique split. The first is how the log is supported and the second is General whether it is in tension. • Always use full throttle when cutting! In most cases you can avoid these problems by cutting in two • Reduce the speed to idle after every cut (running the stages; from the top and from the bottom of the log. You need engine for too long at full throttle without any load can lead to to suppor
