Assessments - 2, GPA: 4.5
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When the chain is blunt you have to exert more pressure to force the bar through the wood and the cuttings will be very small. If the chain is very blunt it will not produce any cuttings at all, just wood powder. • A sharp chain eats its way through the wood and produces long, thick cuttings. • The cutting part of the chain is called the CUTTING LINK and this consists of a CUTTING TOOTH (A) and the RAKER LIP (B). The cutting depth is determined by the difference in height between the two. • When you sharpen a cutting tooth there are five important factors to remember. FILING ANGLE CUTTING ANGLE FILE POSITION ROUND FILE DIAMETER FILE DEPTH See the ”Technical data”section for information about 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 TOO SMALL B Sharpening cutting teeth To sharpen cutting teeth you will need a ROUND FILE and a FILE GAUGE. See the ”Technical data” section for information on the size of file and gauge that are recommended for your saw chain. 1 Check that the chain is correctly tensioned. A slack chain is difficult to sharpen correctly. 2 Always file cutting teeth from the inside face, reducing the pressure on the return stroke. File all the teeth on one side first, then turn the saw over and file the teeth on the other side. 3 File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (0,16") the chain is worn out and should be replaced. BA 1 5 min 4 mm (0,16") ! ! sharpening your saw chain. 12 – English SAFETY INSTRUCTIONS 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. • On a low-kickback cutting link the front edge of the raker lip is rounded. It is very important that you maintain this radius or bevel when you adjust the raker clearance. • We recommend the use of a raker gauge to achieve the correct clearance and bevel on the raker lip. ! The risk of kickback is increased if the raker clearance is too large! D Setting the raker clearance • Before setting the raker clearance the cutting teeth should be newly 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. The clearance is correct when you no longer feel any resistance as you draw the file over the gauge. 3 Tensioning the chain ! A slack chain may jump off and cause serious or even fatal injury. • The more you use a chain the longer it becomes. It is therefore important to adjust the chain regularly to take up the slack. • Check the chain tension every time you refuel. NOTE! A new saw chain has a running-in period during which you should check the tension more frequently. • Tension the chain as tightly as possible, but not so tight that you cannot pull it round freely by hand. English – 13 SAFETY INSTRUCTIONS 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. Tighten the chain until it hangs slack on the underside of the bar. 3 Use the combination spanner to tighten the bar nuts while lifting the tip of the bar at the same time. Check that you can pull the chain round freely by hand and that it is not slack on the bottom of the bar. The position of the chain tensioning screw varies from model to model. See the” What is what”section to find out where it is on your saw. 4 Lubricating cutting equipment ! ! Poor lubrication of cutting equipment may cause the chain to snap and lead to serious, even fatal injuries. A Chain oil • 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. • As a chainsaw manufacturer we have developed an optimal chain oil which, with its vegetable oil base, is also biodegradable. We recommend the use of our own oil for both maximum chain life and to minimise environmental damage. • If our own chain oil is not available, standard chain oil is recommended. • In areas where oil specifically for lubrication of saw chains is unavailable, ordinary EP 90 tran...
Este manual também é adequado para os modelos :Benzo e serras - 2045 (1.47 mb)