Husqvarna 414EL Operation Manual - Page 17

GENERAL SAFETY PRECAUTIONS • Always file cutting teeth from the inside face. Reduce the pressure on the return stroke. File all the teeth on one side first, then turn the chain saw and file the teeth on the other side. (19) • File all the teeth to the same length. When the length of the cutting teeth is reduced to 5/32 inch (4 mm) the chain is worn out and should be replaced. General advice on adjusting depth gauge setting When you sharpen the cutting tooth the depth gauge setting will decrease. To maintain optimal cutting performance the depth gauge has to be filed down to achieve the recommended depth gauge setting. See instructions under the heading Technical data to find the correct depth gauge setting for your particular chain. (24) WARNING! The risk of kickback is ! increased if the depth gauge setting is too large! Adjustment of depth gauge setting • The cutting teeth should be newly sharpened before adjusting the depth gauge setting. We recommend that you adjust the depth gauge setting every third time you sharpen the cutting teeth. NOTE! This recommendation assumes that the length of the cutting teeth is not reduced excessively. • You will need a flat file and a depth gauge tool. We recommend that you use our depth gauge tool to acheive the correct depth gauge setting and bevel for the depth gauge. • Place the depth gauge tool over the chain. Detailed information regarding the use of the depth gauge tool, will be found on the package for the depth gauge tool. Use the flat file to file off the tip of the depth gauge that protrudes through the depth gauge tool. The depth gauge setting is correct when you no longer feel resistance as you draw the file along the depth gauge tool. (25) Tensioning the chain WARNING! A slack chain may jump off ! the bar and cause serious or even fatal injury. WARNING! Always unplug the product ! from the power supply when assembling, checking and/or performing maintenance. 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 refill with saw chain oil. NOTE! A new 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. (26) • Release the knob by folding it out until it snaps open. • Turn the knob anti clockwise to loosen the drive sprocket cover. • Adjust the tension on the chain by turning the chain tensioner wheel down (+) for tighter tension and up () to loosen the tension. (A-B) • Tighten the bar clutch by turning the knob clockwise. • Fold the knob back in to lock the tensioning. Lubricating cutting equipment WARNING! Poor lubrication of cutting ! equipment may cause the chain to snap, which could lead to serious, even fatal injuries. Chain oil Chain oil must demonstrate good adhesion to the chain and also maintain its flow characteristics regardless of whether it is warm summer or cold winter weather. Never use waste oil! Using waste oil can be dangerous to you and damage the machine and environment. Filling with chain oil • All our chain saws have an automatic chain lubrication system. On some models the oil flow is also adjustable. (27) • A full reservoir is sufficient for 15 minutes of steady use. • Never use waste oil. This results in damage to the oil pump, the bar and the chain. • It is important to use oil of the right grade (suitable viscosity range) to suit the air temperature. • In temperatures below 32°F (0°C) some oils become too viscous. This can overload the oil pump and result in damage to the oil pump components. • Contact your service agent when choosing chain oil. Checking chain lubrication Aim the tip of the bar at a light coloured surface about 20 cm (8 inches) away. After 1 minute running at full throttle you should see a distinct line of oil on the light surface. (28) If the chain lubrication is not working: • Check that the oil channel in the bar is not obstructed. Clean if necessary. (29) • Check that the groove in the edge of the bar is clean. Clean if necessary. (30) • Check that the bar tip sprocket turns freely and that the lubricating hole in the tip sprocket is not blocked. Clean and lubricate if necessary. (31) English - 17