RedMax GZ3500T Owners Manual - Page 16

GZ3500T 9. Maintenance WARNING Before cleaning, the inspecting or repairing the unit, make sure that engine has stopped and is cool. Disconnect the spark plug to prevent accidental starting. ■ MAINTENANCE AFTER EACH USE 1. Air filter Loosen the knob and remove the air cleaner cover. Take off the filter elements and tap off attached sawdust. When they are extremely dirty, shakewash with soapy water. Do not use gasoline. Dry them completely before reinstalling. knob air cleaner cover filter elements 2. Oiling port Remove the guide bar and check the oiling port for clogging. WARNING When installing the filter, do not pinch or fold the suction pipe. 3. Oil filter 1. With a wire hook, take out the oil filter from the feeding port. Oil filter 2. Wash the filter with non-flammable solvent. WARNING When installing the filter, do not pinch or fold the suction pipe. 4. Spark plug (0.24~0.28inch) NGK CMR7H Oiling port 3. Guide bar When the guide bar is removed, remove sawdust in the bar groove and the oiling port. Grease the nose sprocket from the feeding port on the tip of the bar. Grease port Oiling port Sprocket 4. Others Check for fuel leakage and loose fasteners and damage to major parts, especially handle joints and guide bar mounting. If any defects are found, make sure to have them repaired before operating the saw again. ■ PERIODICAL SERVICE POINTS 1. Cylinder fins 1. Remove the starter case. 2. Remove sawdust between the cylinder fins. 3. Clean the inside of the starter case. 2. Fuel filter (a) Using a wire hook, pull out the filter from the filter port. Clean the electrodes with a wire brush and reset the gap to 0.6 mm~0.7mm (0.24~0.28inch) as necessary. 5. Sprocket 0.2inch (0.5mm) Check for cracks and for excessive wear interfering with the chain drive. If the wear is considerable, replace it with new one. Never fit a new chain on a worn sprocket, or a worn chain on a new sprocket. 6. Way of the cooling air WARNING • The engine metal parts can burn your skin. Never touch the cylinder, muffler or ignition plug etc. during operation or right after stopping the engine. • Before starting the engine, check around the muffler and remove sawdust. If you do not, it will cause the overheating. Keep clean area around the muffler. This engine is air-cooled. Dirt clogging between the inlet port of the cooling air and cylinder fins will cause overheating of the engine. Periodically check and clean the cylinder fins after removing the air cleaner and the cylinder cover. Fuel filter (b) If dirty, replace filter. Replace with new one if clogged with dirt. US-14 inlet port of the cooling air IMPORTANT When installing the cylinder cover, make sure that switch wires and grommets are positioned correctly in place.