Zenoah BCZ4000DL Manuale Utente

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GB-15
G
B
BCZ4000DL / BCZ4000DW / BCZ4200CL
Never touch the cylinder, muffler, or spark plugs with
your bare hands immediately after stopping the engine.
The engine can become very hot when in operation, and
doing so could result in severe burns.
When checking the machine to make sure that it is okay
before using it, check the area around the muffler and
remove any wood chips or leaves which have attached
themselves to the brushcutter. Failing to do so could
cause the muffler to become overheated and that in turn
could cause the engine to catch on fire.  Always make
sure that the muffler is clean and free of wood chips,
leaves, and other waste before use.
Check the intake air cooling vent and the area around
the cylinder cooling fins after every 25 hours of use for
blockage, and remove any waste which has attached
itself to the brushcutter. Note that it is necessary to re-
move the upper cover and the lower cover shown in in
order to be able to view the upper part of the cylinder.
 IMPORTANT
If waste gets stuck and causes blockage around the intake
air cooling vent or between the cylinder fins, it may cause
the engine to overheat, and that in turn may cause mechani-
cal failure on the part of the brushcutter.
PROCEDURES TO BE PERFORMED AFTER
EVERY 100 HOURS OF USE
1. Remove the muffler, insert a screwdriver into the vent, and
wipe away any carbon buildup. Wipe away any carbon
buildup on the muffler exhaust vent and cylinder exhaust
port at the same time.
2. Tighten all screws, bolts, and fittings.
3. Check to see if any oil or grease has worked its way in be-
tween the clutch lining and drum, and if it has, wipe it away
using oil-free, lead-free gasoline.
REPLACEMENT PLUG IS A NGK CMR7H.
 IMPORTANT
Note that using any spark plug other than those desig-
nated may result in the engine failing to operate properly
or in the engine becoming overheated and damaged.
To install the spark plug, first turn the plug until it is finger
tight, then tighten it a quarter turn more with a socket
wrench.
MUFFLER
 WARNING
Inspect periodically, the muffler for loose fasten-
ers, any damage or corrosion. If any sign of ex-
haust leakage is found, stop using the machine
and have it repaired immediately.
Note that failing to do so may result in the engine
catching on fire.
SPARK ARRESTER
• The muffler is equipped with a spark arrester to prevent red
hot carbon from flying out of the exhaust outlet. Periodically
inspect and clean as necessary with a wire brush.
(1) Spark arrester
(2) Guide
(3) Bolt
ANGLE TRANSMISSION
• The reduction gears are lubricated by multipurpose,
lithium-based grease in the angle transmission.
Supply new grease every 25 hours of use or more
often depending on the job condition.
• Remove the bolt of the grease nipple and the bolt
opposite side of the grease nipple. Install new grease
into the grease nipple to arrange for old grease to
exit from the opposite side.
INTAKE AIR COOLING VENT
 WARNING
10. Storage
Aged fuel is one of major causes of engine starting fail-
ure. Before storing the unit, empty the fuel tank and run
the engine until it uses all the fuel left in the fuel line and
the carburetor. Store the unit indoor taking necessary
measures for rust prevention.
9. Maintenance
(1) Cylinder
(2) Intake air cooling vent
TIGHTENING TORQUE:
9.8 ~ 11.8 N.m.
(87 ~ 104 in-lbs)
(1)
(1)
(2)
(2)
(1) Grease
11. Disposal
When disposing your machine, fuel or oil for the machine,
be sure to allow your local regulations.
0.6~0.7 mm