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Facilité d'utilisation
A damaged cutting attachment should always be replaced. Quick release Check that the harness straps are correctly positioned. Once the harness and machine have been adjusted, check that the harness quick release works correctly. Locking nut • When fitting, tighten the nut in the opposite direction to the direction of rotation of the cutting attachment. To remove it, undo the nut in the same direction as the cutting attachment rotates. (CAUTION! The nut has a left-hand thread.) • Tighten the nut using the socket spanner. 35-50 Nm (3.5- 5 kpm). CAUTION! The nylon lining inside the locking nut must not be so worn that you can turn it by hand. The lining should offer a resistance of at least 1.5 Nm. The nut should be replaced after it has been put on approx. 10 times. ! WARNING! Never use a machine with faulty safety equipment. The machine’s safety equipment must be checked and maintained as described in this section. If your machine fails any of these checks contact your service agent to get it repaired. Cutting equipment IMPORTANT! This section describes how to choose and maintain your cutting equipment in order to: Reduce the risk of kickback. Obtain maximum cutting performance. Extend the life of cutting equipment. Only use cutting attachments with the guards we recommend! See the chapter on Technical data. Refer to the instructions for the cutting attachment to check the correct way to load the cord and the correct cord diameter. Keep the teeth of the blade correctly sharpened! Follow our recommendations. Also refer to the instructions on the blade packaging. Maintain the correct blade setting! Follow our instructions and use the recommended file gauge. ! WARNING! Using an incorrect cutting attachment or an incorrectly sharpened blade increases the risk of kickback. Filing the saw blade • See the cutting attachment packaging for correct sharpening instructions. A correctly filed blade is essential for working efficiently and to avoid unnecessary wear to the blade and clearing saw. • Make sure that the blade is well supported when you file it. Use a 5.5 mm round file with a file holder. • The filing angle is 15 ° . File alternate teeth to the right and those in between to the left. If the blade has been heavily pitted by stones it may be necessary to dress the top edges of the teeth with a flat file, in exceptional cases. If so, this should be done before filing with a round file. The top edges must be filed down by the same amount for all the teeth. Adjust the blade setting. This should be 1 mm. Sharpening grass cutters and grass blades • See the cutting attachment packaging for correct sharpening instructions. • Sharpen blades and cutters using a single-cut flat file. • Sharpen all edges equally to maintain the balance of the blade. Trimmer head • Only use the recommended trimmer heads and trimmer cords. These have been tested by the manufacturer to suit a particular engine size. This is especially important when a fully automatic trimmer head is used. Only use the recommended cutting attachment. See the chapter on Technical data. • Smaller machines generally require small trimmer heads and vice versa. This is because when clearing using a cord the engine must throw out the cord radially from the trimmer head and overcome the resistance of the grass being cleared. • The length of the cord is also important. A longer cord requires greater engine power than a shorter cord of the same diameter. • Make sure that the cutter on the trimmer guard is intact. This is used to cut the cord to the correct length. • To increase the life of the cord it can be soaked in water for a couple of days. This will make the line tougher so that it lasts longer. IMPORTANT! Always ensure the trimmer cord is wound tightly and evenly around the drum, otherwise the machine will generate harmful vibration. ! WARNING! Always stop the engine before doing any work on the cutting attachment. This continues to rotate even after the throttle has been released. Ensure that the cutting attachment has stopped completely and disconnect the HT lead from the spark plug before you start to work on it. General safety precautions IMPORTANT! The machine is only designed for trimming grass, grass clearing and/or forestry clearing. The only accessories you can operate with this engine unit are the cutting attachments we recommend in the chapter on Technical data. Never use the machine if you are tired, if you have drunk alcohol, or if you are taking medication that could affect your vision, your judgement or your co-ordination. Never use the machine in extreme weather conditions such as severe cold, very hot and/or humid climates. Wear personal protective equipment. See instructions under the heading Personal protective equipment. Never use a machine that has been modified in any way from its original specification. Never use a machine that is faulty. Carry out the checks, maintenance and service instructions described in this manual. Some maintenance...
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