848JCB93A0 (506)
BRUSHCUTTERS
BCZ3000DL
OWNER’S MANUAL
Thank you for purchasing a KOMATSU ZENOAH product.
Before using our brushcutter, please read this manual carefully
to understand the proper use of your unit.
1
Explanation of pictorials
(1) Read the owner's manual.
(2) Wear a helmet, ear protection and eye
protection.
(3) Warning / Attention
(4) Keep all children, bystanders and helpers
15 meters away from the brushcutter.
at least 3 meters away from fueling site
before starting the engine.
storage or transporting to prevent loss of
fuel, damage or injury.
2
For safe operation
1. Read this manual carefully until you
completely understand and can follow all
safety notes, precautions, and operating
instructions before using of the unit.
10.Check the condition of working area to
18.When replacing cutting attachment or other
components, be sure to use the parts
supplied or recommended by KOMATSU
ZENOAH.
19.When the unit is turned off, make sure the
cutting attachment has stopped before the
unit is set down.
20.For units equipped with a clutch, be sure
the cutting attachment stops turning when
the engine idles.
21.Use only for tasks explained in the
instruction handbook.
22.Discard blades that are bent, warped,
cracked, broken or damaged in any way.
23.Instructions on stopping a coasting blade.
A blade can injure while it continues to spin
after the engine is stopped or throttle control
is released.
24.Stop the engine and blade before removing
material that is blocking or entangling the
cutting attachment.
25.Use a sharp blade. A dull blade is more
likely to snag and thrust. Replace the
fastening nut according to the
manufacturer's instruction.
26.Cut only material recommended by the
manufacturer. Do not let the blade contact
material it cannot cut, such as rocks, metal
etc.
avoid any accident by hitting hidden
obstacles such as stumps, stones, cans, or
broken grass.
11.Keep bystanders and animals at least 15
meters away from the operating point, If you
are approached, immediately stop the
engine.
12.Keep firm footholds and balance at all
times. Do not use the unit where footing is
unsteady or slippery.
13.Keep cutting attachment below waist level.
14.Keep all parts of your body away from the
rotating cutting attachment and hot
surfaces.
15.Warn the operator of the danger of blade
thrust. (Kick back)
2. Do not operate this tool when you are tired,
ill, or under the influence of alchohol, drugs,
or medication.
3. Always wear eye or face protection and
hearing protection.
4. Do not wear loose clothing, jewelry, short
trousers, sandals, or go barefoot. Do not
wear anything which might be caught by
branches or moving part of the unit. Secure
hair so it is above shoulder length.
5. Never start or run the engine inside a
closed room or building. Exhaust gases
contain dangerous carbon monoxide.
6. Before starting the engine, inspect the
entire unit for loose fasteners and fuel
leakage. Make sure that the cutting
attachment is properly installed and
securely fastened.
7. Be sure the blade guard is attached in
place.
8. Fuel is highly flammable. Always keep open
flames and sparks away from the unit and
fuel depot. Do not smoke while refueling the
unit or mixing fuel.
Blade thrust may occur when the spinning
blade contacts a solid object in the critical
area. A dangerous reaction may occur
causing the entire unit and operator to be
thrust violently. This reaction is called Kick
back. As a result, the operator can lose
control of the unit which can cause serious
or fatal injury. Kick back is more likely to
occur in areas where it is difficult to see the
material to be cut.
16.When inspecting or servicing the unit, make
sure to stop the engine and disconnect the
spark plug as necessary.
17.Cover the blade when the transporting or
storing the unit. Secure the unit before for
9. When refueling the unit, make sure to stop
the engine and allow it to cool down. Wipe
spilled fuel completely from the unit. Move
27.Always wear safety boots, additionally a
helmet is required if there is a risk of contact
with falling objects.
1-9 Minamidai, Kawagoe, Saitama, 350-1192 Japan
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■ LINE HEAD USAGE
5. Set the ignition switch to the “I” position. Set
the throttle lever to the start position (1 --> 2
--> 3).
6
Maintenance
WARNING
1. Always wear eye protection such as
safety goggles. Never lean over the
rotating cutting head. Rocks or other
debris could be thrown into eyes and
face and cause serious personal injury.
2. Keep the debris guard attached in place
at all times when the unit is operated.
Place the unit on a flat, firm place.
Keep the cutting head clear of everything
around it.
WARNING
•
Make sure that the engine has stopped
and is cool before performing any
service to the machine. Contact with
moving cutting head or hot muffler may
result in a personal injury.
Stop
Start
1
3. Ignition switch
T
AR
ST
■ AIR FILTER
TRIMMING GRASS AND WEEDS
•
The air filter, if clogged, will reduce the
engine performance. Check and clean the
filter element in warm, soapy water as
required. Dry completely before installing. If
the element is broken or shrunk, replace
with a new one.
•
Always remember that the TIP of the line
does cutting. You will achieve better results
by not crowding the line into the cutting
area. Allow the unit to trim at its own pace.
2
6. While holding the unit firmly, pull out the
starter rope quickly until engine fires.
1. Hold the unit so the head is off the ground
and is tilted about 20 degrees toward the
sweep direction.
2. Use full throttle when cutting.
3. You can avoid thrown debris by sweeping
from your left to the right.
4. Use a slow, deliberate action to cut heavy
growth. The rate of cutting motion will
depend on the material being cut. Heavy
growth will require slower action than will
light growth.
5. Never swing the unit so hard as you are in
danger of losing your balance or control of
the unit.
6. Try to control the cutting motion with the hip
rather than placing the full workload on the
arm and hands.
7. Take precautions to avoid wire, grass and
dead, dry, long-stem weeds from wrapping
around the head shaft. Such materials can
stall the head and cause the clutch to slip,
resulting in damage to the clutch system if
repeated frequently.
(1) Air filter
(1)
■ FUEL FILTER
WARNING
•
When the engine runs short of fuel supply,
check the fuel cap and the fuel filter for
blockage.
•
The product is equipped with a centrifugal
clutch mechanism, so the cutting
attachment begins to rotate as soon as the
engine is started by putting the throttle into
the start position. When starting the engine,
place the product onto the ground in a flat
clear area and hold it firmly in place so as to
ensure that neither the cutting part nor the
throttle come into contact with any obstacle
when the engine starts.
(1) Fuel filter
(1)
ADJUSTING THE LINE LENGTH
■ SPARK PLUG
•
Your brushcutters is equipped with a semi-
auto type nylon line head that allows the
operator to advance the line without
stopping the engine. When the line
becomes short, lightly tap the head on the
ground while running the engine at full
throttle.
•
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 replacement plug,
use the correct type specified by KOMATSU
ZENOAH.
•
Each time the head is bumped, the line
advance about 1 inch(25.4 mm). For better
effect, tap the head on bear ground or hard
soil. Avoid bumping in thick, tall grass as
the engine may stall by overload.
IMPORTANT
•
Avoid pulling the rope to its end or returning
it by releasing the knob. Such actions can
cause starter failures.
7. Move the choke lever downward to open the
choke. And restart engine.
8. Allow the engine to warm up for a several
minutes before starting operation.
Model
Type of Plug
Spark Gap
■ STARTING ENGINE
BCZ3000DL
CHAMPION RZ7C 0.6 ~ 0.7 mm
WARNING
•
The cutting head will start rotating upon
the engine starts.
NOTE
IMPORTANT
1. When restarting the engine immediately
after stopping it, leave the choke open.
1. Feed fuel into the fuel tank and tighten the
cap securely.
2. Rest the unit on a flat, firm place. Keep the
cutting head off the ground and clear of
surrounding objects, as it will start rotating
upon starting of the engine.
•
•
Note that using any spark plug other than
those designated 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.
2. Overchoking can make the engine hard to
start due to excess fuel. When the engine
failed to start after several attempts, open
the choke and repeat pulling the rope, or
remove the spark plug and dry it.
3. Push the primer pump several times until
overflown fuel flows out in the clear tube.
■ STOPPING ENGINE
1. Release the throttle lever and run the
engine for half a minute.
2. Shift the ignition switch to the STOP
position.
IMPORTANT
•
Except for an emergency, avoid stopping
the engine while pulling the throttle lever.
4. Move the choke lever to the closed position.
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■ REFILLING TRIMMING LINE
■ INTAKE AIR COOLING VENT
■ MUFFLER
WARNING
WARNING
•
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 remove the engine cover
shown in order to be able to view the upper
part of the cylinder.
•
Inspect periodically, the muffler for loose
fasteners, any damage or corrosion. If any
sign of exhaust 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.
■ 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 between the clutch lining
and drum, and if it has, wipe it away using
oil-free, lead-free gasoline.
•
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 mechanical failure on the part of the
brushcutter.
1. For replacement line, use a diameter of 2.4
mm. The spool is capable for a line upto 6 m
on the 4" head. Avoid using a larger line as it
may cut down the trimming performance.
2. Pinch the slotted area on the both sides of
the spool housing to unhook the bottom cap.
3. Take out the spool and pull off the old line.
Put one end of new line through the spool
holes
■ MAINTENANCE BEFORE STORAGE
•
Old fuel left in the carburetor may cause
starting failure. When a series of operation
finished, make sure to empty the fuel tank
and drain the carburetor.
(1) Cylinder
(2) Intake air
cooling vent
•
Check all parts and the functions. If the
failured or damaged parts have been found,
replace them with new ones.
holes and pull it until the length is equal
between each part of the line.
4. Wind up the line in the correct direction as
indicated on the spool.
5. Hook each end of the line in the slot on the
edge of the spool, and then put the ends
through the eyelets on the housing. Make
sure that the spring and the washers are in
place.
6. While holding the spool against the housing,
pull the line ends to release them from the
slot.
7
Specifications
MODEL CODE
Overall size
Length
Unit
BCZ3000DL
mm
mm
mm
Kg
■
1845
395
325
5.9
GZ30N
Width
Height
Dry weight
Engine model
Displacement
cc
29.5
7. Line up the slot on the bottom cap with the
hook on the housing, press the cap against
the housing until it clicks.
Carburetor
■
■
litter
rpm
■
Diaphragm
50:1 (Gasoline and 2cycle oil)
0.72
6000 to 8500
CHAMPION RZ7C
Centrifugal-Type
Fuel (Mixture ratio)
Fuel tank capacity
Service range
Spark plug
■ GEARCASE
•
The reduction gears are lubricated by
multipurpose, lithium-based grease in the
gear case. Supply new grease every 25
hours of use or more often depending on
the job condition.
Clutch system
■
Anti-vibration system
Housing
Handle-bracket
■
■
Yes
No
Gearhead
Neck angle
Reduction ratio
Line head rotation
Handle type
Throttle lever
Standard cutter
Harness type
•
Remove the bolt opposit to the grease
nipple before installing new grease to
arrange for old grease to exit.
deg
■
■
■
■
■
■
■
60
1.462
Counter-clockwise
Loop
Trigger Type (With Safety-lock)
Flexible Trimming Lines
Single
Quick release
Yes
Standard accessories
Tool-kit
■
■
■
■
Owner's manual
Specifications are subject to change without notice.
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