
They can be unscrewed manually or with a wrench or universal wrench. It is usually secured with two bolts and two nuts. Remove the cover on the side of the chainsaw where the guide bar is attached. It is important that there is no debris or metal wires sticking out of it, all of which can get into the cylinder Most often instead of it take an ordinary thick cord or wire length of about 10. In this hole install a special piston stopper, but among the masters it is not in great demand: metal can scratch the piston, and plastic. To do this, remove the upper housing cover, the air filter, and unscrew the spark plug. Replacement of the drive sprocket and chain starts with fixing the piston in the chainsaw cylinder. An adjustable wrench/wrench (may not be needed).piston stopper (a special tool, but it can be replaced by a thick cord).a wrench to remove the clutch (an ordinary bolt wrench for a nut will also do, but it is desirable that it is thicker).
