7. MAINTENANCE
MA4
MA5
MA6
0.6~0.7mm
MA7
■GEAR CASE
•Remove cutter, cutter holder A and plug and insert fresh lubricant. (MA4)
(1) Holder A (2) Plug
■FUEL STRAINER
Drain the fuel from the tank. Remove the fuel strainer from the fuel tank and clean the fuel strainer. (MA5)
(1) Fuel Strainer
IMPORTANT
A clogged fuel filter may cause poor acceleration of the engine.
■SPARK PLUG
WARNING
Do not touch the spark plug with bare hands immediately after stopping the engine. The spark plug is still so hot and might cause burns.
Take out the spark plug, check the electrodes, and if contaminated, clean them with a wire brush, etc. every 25 hours of use.
When mounting the spark plug, screw the plug in with your fingers, and then tighten it with the plug wrench supplied as a standard accessory.
The spark gap should be adjusted to 0.6 to 0.7 mm. (MA6)
[Tightening torque]
9.8 to 11.8
Designated spark plug
Champion :
NGK : BPMR7A
IMPORTANT
If you use the plug wrench to start tightening the spark plug, the thread might become damaged.
■INTAKE AIR COOLING VENT
•Check the intake air cooling vent and the area around the cylinder cooling fins, and remove any waste which has attached itself to the brushcutter. (MA7)
(1) | Intake air cooling vent (back) (2) Cylinder fin |
(3) | Cover (4) Screw |
IMPORTANT
•Note that failing to do so could cause the muffler to become overheated, and that this in turn could cause the brushcutter to catch on fire.
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