Zenoah BK4310FL-S 用户手册
18
8. Maintenance
■ FUEL FILTER
When you mount or dismount the fuel filter, be
careful not to damage the rubber packing. A
damaged rubber packing or insufficient mounting of
the fuel filter will cause fuel to leak.
careful not to damage the rubber packing. A
damaged rubber packing or insufficient mounting of
the fuel filter will cause fuel to leak.
Check how heavily the fuel filter is clogged from the
fueling port of the fuel tank every 25 hours of use.
If the fuel filter is clogged with dust, empty the fuel tank,
take the fuel filter out, and clean it with a brush, etc.
If the clogging of the fuel filter cannot be removed or the
fuel filter is damaged, replace it with a new one.
fueling port of the fuel tank every 25 hours of use.
If the fuel filter is clogged with dust, empty the fuel tank,
take the fuel filter out, and clean it with a brush, etc.
If the clogging of the fuel filter cannot be removed or the
fuel filter is damaged, replace it with a new one.
Part No.: T1154-85100
If the fuel filter is clogged, the engine rotation speed
might not increase, or rotation fluctuations might occur.
might not increase, or rotation fluctuations might occur.
(1) Rubber packing
(2) Fuel filter
(2) Fuel filter
■ SPARK PLUG
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.
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.
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.
[Tightening torque]
9.8 to 11.8 N-m
(100 to 120 kgf-cm)
Designated spark plug
Champion: RCJ-6Y
NGK: BPM7A
WARNING
IMPORTANT
WARNING
If you use the plug wrench to start tightening the spark
plug, the thread might become damaged.
plug, the thread might become damaged.
■ AIR COOLING VENT
Do not put any waste into the intake air-cooling vent
while the machine is in operation. It might touch the
rotating part, causing danger.
while the machine is in operation. It might touch the
rotating part, causing danger.
Check the intake air-cooling vent and the cooling fin of
the cylinder, and remove any dirt attached thereto every
25 hours of use.
the cylinder, and remove any dirt attached thereto every
25 hours of use.
If any waste or dirt is jammed between the intake air-
cooling vent and the cylinder fin, the engine might
overheat, causing trouble.
cooling vent and the cylinder fin, the engine might
overheat, causing trouble.
(1) Cylinder fin
(2) Intake air-cooling
(2) Intake air-cooling
vent
■ GEAR CASE
Supply lubricating grease to the gear case every 25
hours of use.
Supply lubricating grease to the gear case every 25
hours of use.
Designated grease
Lithium-based heat-resistant grease (#2)
Lithium-based heat-resistant grease (#2)
[How to supply grease]
1. Remove the blade and the blade rest plate.
2. Remove the plug beside the gear case, and pour tube
1. Remove the blade and the blade rest plate.
2. Remove the plug beside the gear case, and pour tube
grease from the plug hole.
3. Stop supplying the grease when all the old grease
has been pushed out from the shaft connecting hole
IMPORTANT
WARNING
IMPORTANT
MA6
MA5
MA4