Husqvarna 525P4S Operation Manual - Page 11

- Filing angle GENERAL SAFETY PRECAUTIONS Sharpening cutting teeth To sharpen cutting teeth you will need a round file and a file gauge. - Cutting angle - File position - Round file diameter • Check that the chain is correctly tensioned. A slack chain will move sideways, making it more difficult to sharpen correctly. • Always file cutting teeth from the inside face outwards. Reduce the pressure on the return stroke. File all the teeth on one side of the bar first. Then turn the saw over and file the remaining teeth from the other side. It is very difficult to sharpen a chain correctly without the right equipment. We recommend that you use our file gauge. This will help you obtain the maximum kickback reduction and cutting performance from your chain. • File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (5/32") the chain is worn out and should be replaced. min 4 mm (0,16") General advice on setting raker clearance WARNING! Departure from the ! sharpening instructions considerably increases the risk of kickback. • When you sharpen the cutting teeth you reduce the raker clearance (=cutting depth). To maintain optimal cutting performance you must file back the raker lip to the recommended height. • On a low-kickback cutting link the front edge of the raker lip is rounded. It is very important that you English - 11