17
(1)
(2)
CLEANING OF FUEL FILTER
WARNING: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Monthly (every 50 operating hours)
Suction head in the fuel tank
Check the fuel
fi
lter (1) periodically. To check the fuel
fi
lter, follow the steps
below:
(1) Remove the fuel tank cap, drain the fuel to empty the tank. Check the tank
inside for any foreign materials. If any, remove them.
(2) Pull out the suction head by using a wire hook through the tank opening.
(3) If the fuel
fi
lter clogged slightly, clean it. To clean it, gently shake and tap
it in fuel. To avoid damage, do not squeeze or rub it. The fuel used for the
cleaning must be disposed in accordance with the method speci
fi
ed by
regulations in your country.
If the fuel
fi
lter became hard or heavily clogged up, replace it.
(4) After checking, cleaning or replacing, insert the fuel
fi
lter into the fuel pipe
(2) and
fi
x it by the hose clamp (3). Push the fuel
fi
lter in all the way to the
bottom of the fuel tank.
Clogged or damaged fuel
fi
lter can cause insuf
fi
cient fuel supply and reduce
engine power. Replace the fuel
fi
lter at least quarterly to ensure satisfactory fuel
supply to the carburetor.
REPLACEMENT OF FUEL PIPE
CAUTION: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Daily (every 10 operating hours)
Replacement: Annually (every 200 operating hours)
Replace the fuel pipe (1) every year, regardless of operating frequency. Fuel
leakage may lead to
fi
re.
If any leakage is detected during inspection, replace the fuel pipe immediately.
INSPECTION OF BOLTS, NUTS AND SCREWS
Retighten loose bolts, nuts, etc.
–
Check for fuel and oil leakage.
–
Check for the fuel cap and oil cap tightness.
–
Replace damaged parts with new ones for safety operation.
–
CLEANING OF PARTS
Keep the engine always clean.
–
Keep the cylinder
fi
ns free of dust or dirt. Dust or dirt adhering to the
fi
ns will
–
cause piston seizure.
0.7 mm - 0.8 mm
(0.028” - 0.032”)
CHECKING THE SPARK PLUG
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 - 0.8 mm
–
(0.028” - 0.032”). If the gap is too wide or too narrow, adjust it. If the spark
plug is clogged or contaminated, clean it thoroughly or replace it.
CAUTION: Never touch the spark plug connector while the engine is running
(danger of high voltage electric shock).
REPLACEMENT OF GASKETS AND PACKINGS
In reassembling after the engine is dismounted, be sure to replace the gaskets and packings with new ones.
Any maintenance of adjustment work that is not included and described in this manual is only to be performed by Authorized Service Agents.
SUPPLY OF GREASE TO GEAR CASE
Supply grease (Shell Alvania 3 or equivalent) to the gear case (1) through the
–
grease hole (2) every 30 hours. (Genuine MAKITA grease may be purchased
from your MAKITA dealer.)
(2)
(3)
(1)
(1)
