Husqvarna 226HD75S Owners Manual - Page 15

English Maintenance INTAKE AIR COOLING VENT WARNING • Never touch the cylinder, muffler, or spark plugs with your bare hands immediately after stopping the engine. The engine can become very hot when in operation, and doing so could result in severe burns. • Clean the cylinder fins with compressed air or a brush. Check the cutting edges and reform with a flat file. Point : 1. Keep the end corner sharp. 2. Round the root of the edge. 3. Do not use water when using a grinder. IMPORTANT If waste gets stuck and causes blockage around the intake air cooling vent or between the cylinder fins, it may cause the engine to overheat, and that in turn may cause mechanical failure on the part of the hedgetrimmer. BLADES Clean any resin and plant reside from the blades using cleaning agent 531 00 75-13 (UL22) before and after using IMPORTANT • When mounting the blade, make sure to fasten the spacer, washer and bolt, then fasten the nut. (1) (2) (3) (1) Bolt (2) Plate (3) Spacer (4) Nut (4) SHARPENING Always keep the file or sharpener at an angle of 45° to the WARNING the machine. • Make sure that the blade bolts are well tightened. • The blade assembly is designed to automatically compensate for any play between the blades. blade, and: • Always grind in the direction of the cutting edge; • Note: files cut only in one direction; lift the file from the blade when returning to start a new pass; • Remove all burr from the edge of the blade with a slip stone; • Remove as little material as possible; • Before refitting the sharpened blades, remove filings and then apply grease. Do not try to sharpen a damaged blade: change it or take it to a Service dealer. 15