Makita EH7500S Instruction Manual

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Contents

15Any maintenance or adjustment work that is not included and described in this manual is to be performed by Authorized Service Agent only.Daily checkup and maintenanceTo ensure a long service life and to avoid any damage to the equipment, the following servicing operations should be performed at regularintervals.- Before operation, check the machine for loose screws or missing parts. Pay particular attention to the tightness of the cutter blade screws.- Before operation, always check for clogging of the cooling air passage and the cylinder fins. Clean them if necessary.- Perform the following work daily after use:• Clean the Hedge Trimmer externally and inspect for damage.• Clean the air filter. When working under extremely dusty conditions, clean the filter several times a day.• Check the blades for damage and make sure they are firmly mounted.Checking the spark plug - Every 8 hours (Daily)- Only use the supplied universal wrench to remove or to install the spark plug.- The gap between the two electrodes of the spark plug should be 0.7 to0.8 mm. If the gap is too wide or too narrow, adjust it. If the spark plug isclogged with carbon or fouled, clean it thoroughly or replace it. Use an exactreplacement.0.7 - 0.8 mmGrease nipple(1)Tank capFuel pipeSupply of grease and lubricant- Supply grease from the grease nipple every 50 operating hours. (ShellAlvania No. 3 or equivalent)NOTE: Be sure to observe the specified time and amount of grease supply.If the grease supply is not made at the specified interval or if the amountof grease supplied is not sufficient, the machine may fall into a troublebecause of lack of grease.CLEANING OF FUEL FILTERWARNING: INFLAMMABLES STRICTLY PROHIBITEDInterval of Cleaning and Inspection: Monthly (every 50 operating hours)Suction head in the fuel tank- The felt filter (1) of the suction head is used to filter the fuel required by thecarburetor.- A periodical visual inspection of the felt filter is to be conducted.- For that purpose, open the tank cap, use a wire hook and pull out the suctionhead through the tank opening.Filters found to have hardened, been polluted or clogged up are to bereplaced.- Insufficient fuel supply can result in the admissible maximum speed beingexceeded. It is therefore important to replace the felt filter at least quarterly toensure satisfactory fuel supply to the carburetor.REPLACEMENT OF FUEL PIPECAUTION: INFLAMMABLES STRICTLY PROHIBITEDInterval of Cleaning and Inspection: Daily (every 10 operating hours)Replacement: Annually (every 200 operating hours)Replace the fuel pipe every year, regardless of operating frequency. Fuelleakage may lead to fire.If any leakage is detected during inspection, replace the oil pipe immediately.REPLACEMENT OF TANK CAP- If there is any flaw or damage on the tank cap, replace it.- The tank cap is consumable, and therefore should be renewed every two tothree years.