Zenoah BCZ3000DW Manuale Utente

GB-14

BCZ3000DL / BCZ3000DW

AIR FILTER
• The air filter, if clogged, will reduce the engine perfor-

mance. Check and clean the filter element in warm,
soapy water as required. Dry completely before in-
stalling. If the element is broken or shrunk, replace
with a new one.

FUEL FILTER
• When the engine runs short of fuel supply, check the

fuel cap and the fuel filter for blockage.

SPARK PLUG
• Starting failure and misfiring are often caused by a

fouled spark plug. Clean the spark plug and check
that the plug gap is in the correct range. For a re-
placement plug, use the correct type specified by
KOMATSU ZENOAH.

•

Every Every Every

25

50

100

       System/components

         Procedure

Before

hours hours hours                   Note

use

after

after

after

fuel leaks, fuel spillage

wipe out

✔

fuel tank, air filter, fuel filter

inspect/clean

✔

✔

replace, if necessary

see adjusting

replace carburetor

idle adjusting screw

✔

idling speed

if necessary

clean and readjust

GAP: .025 in (0.6 ~ 0.7 mm)

spark plug

✔

plug gap

replace, if necessary

cylinder fins, intake air cooling vent

clean

✔

muffler, spark arrester, cylinder exhaust port

clean

✔

throttle lever, ignition switch

check operation

✔

replace if

cutting parts

✔

something’s wrong

gear case

grease

✔

screws/nuts/bolts

tighten/replace

✔

✔

not adjusting screws

debris guard

make sure to attach

✔

BLADE
•  Check the blade and the fasteners for looseness,

cracking, or bending.

•  Check the cutting edges and reform with a flat file.

(A)  Saw blade
(B)  8-teeth blade
(C)  3-teeth blade

Point :
1.  Keep the end corner sharp.
2.  Round the root of the edge, using round file.
3.  Do not use water when using a grinder.

•  It is recommended that filing should be done by

professionals.

•  Especially regarding filing the saw blade, Leave it to

the professionals.

•

ENGINE

SHAFT

0.6~0.7 mm

(1) Fuel filter

(1) Air filter