GENERAL SAFETY PRECAUTIONS
When you sharpen a cutting tooth there are four important factors to remember.
1 Filing angle
2Cutting angle
3File position
4Round file diameter
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.
See instructions under the heading Technical data for information about sharpening your chain.
WARNING! Departure from the sharpening
!instructions considerably increases the risk of kickback.
Sharpening cutting teeth
To sharpen cutting teeth you will need a round file and a file gauge. See instructions under the heading Technical data for information on the size of file and gauge that are recommended for the chain fitted to your chain saw.
•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. 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.
•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.
General advice on adjusting depth gauge setting
•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.
See instructions under the heading Technical data to find the correct depth gauge setting for your particular chain.
WARNING! The risk of kickback is increased
!if the raker clearance 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 raker clearance every third time you sharpen the chain. 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.
12 – English
