19Grease holeSUPPLY OF GREASE TO GEAR CASESupply grease (Shell Alvania 2 or equivalent) to the gear case through the–grease hole every 30 hours. (Genuine MAKITA grease may be purchasedfrom your MAKITA dealer.)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.INSPECTION OF BOLTS, NUTS AND SCREWSRetighten loose bolts, nuts, etc.–Check for fuel and oil leakage.–Replace damaged parts with new ones for safety operation.–CLEANING OF FUEL FILTERWARNING: INFLAMMABLES STRICTLY PROHIBITEDInterval of Cleaning and Inspection: Monthly (every 50 operating hours)Suction head in the fuel tankThe fuel filler (1) of the suction head is used to filler the fuel required by the–carburetor.A periodical visual inspection of the fuel filter is to be conducted. For that–purpose open the tank cap, use a wire hook and pull out the suction headthrough the tank opening. Filters found to have hardened, been polluted orclogged up are to be replaced.Insufficient fuel supply can result in the admissible maximum speed being–exceeded. It is therefore important to replace the fuel filter at least quarterly toensure satisfactory fuel supply to the carburetor.SUPPLY OF GREASE TO THE FLEXIBLE SHAFTPull out the flexible shaft from the flexible lining for every 20 hours, and apply–grease on the flexible shaft.The flxible shaft may be broken if no grease is applied.–Any maintenance of adjustment work that is not been included and described in this manual is only to be performed by Authorized ServiceAgents.Flexible linerFlexible shaftApply greaseFuel pipeFuel filter (1)Hose clampFuel pipeCLEANING OF PARTSKeep the engine always clean.–Keep the cylinder fins free of dust or dirt. Dust or dirt adhering to the fins will cause seizure.–REPLACEMENT OF GASKETS AND PACKINGSIn reassembling after the engine is dismounted, be sure to replace the gaskets and packings with new ones.