Makita EH7500S Instruction Manual

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Contents

1- Turn off the engine and remove the spark plug connector when replacing or sharpening cutting tools, also when cleaning the cutter or cuttingdevice or carrying out any maintenance.- Never straighten or weld a damaged cutting blade.- Inspect the cutting blades with the engine switched off at short, regular intervals for damage.- (Detection of hairline cracks by means of tapping-noise test.) Beware the teeth are sharp.- Clean the Hedge Trimmer at regular intervals and check that all screws and nuts are well tightened.- Never service or store the Hedge Trimmer in the vicinity of naked flames to avoid fires.- Always wear leather gloves when handling or sharpening the blades, as they are sharp.Blade sharpeningIf the edges are rounded and do not cut well any more, grind off only the shadedportions. Do not grind the contact surfaces (sliding surfaces) of the top and bottomedges.- Before grinding, be sure to secure the blade firmly and switch off the engine andremove the spark plug cap.- Wear gloves, protective glasses, etc.- An edge ground too much at a time or ground many times will lose its hardenedlayer. It becomes rounded and dull very quickly in use.Blade adjustmentThe blades will wear with long use. When you find that trimming is not as good aswhen the blades were new, adjust them as follows.1. Turn nut ① loose.2. Bolt ② in with the driver lightly till it stops turning, and then screw it back onequarter.3. Turn nut ① tight, holding bolt ② at the same time with a Hex Wrench.4. Lubricate the blades after adjustments above with light oil.5. Start the engine and operate the engine throttle on and off for a minute.6. Stop the engine and touch the blades with your hand. If they are warm enough foryou to keep your hand on, then you have made the proper adjustment. If they aretoo hot for you to keep touching, give bolt ② a little more turnback and repeat 5 tosee if they are properly adjusted.NOTE: Never fail to stop the engine before making the adjustment.The blades have a slot around screw ②. In case you find dust in the end of any of the slots, clean it.NOTE: For enough time of blade stop (EN774), be sure to make the blade adjustment before operation.MAINTENANCE INSTRUCTIONS10° 10°45°Disk grinderEdge crosssectionHolding the disk grinder ata 45° angle, grind the edgeoff to the dotted line tosharpen the rounded tip.① Hexagonal U nut② Truss bolt③ Blade guide④ Upper blade⑤ Lower blade①②⑤②①④③