Zenoah Brush Cutter BC2311LE, BC2611LE, BC2611WE, BC3501LE, BC3501WE, BC4501WE User Manual

848JJ893A0 (709)  
BRUSHCUTTERS  
BC2311LE  
BC2611LE/WE  
BC3501LE/WE  
BC4501WE  
OWNER’S MANUAL  
Thank you for purchasing a ZENOAH product.  
Before using our brushcutter, please read this manual carefully  
to understand the proper use of your unit.  
1
Explanation of pictorials  
(1)  
(2)  
(3)  
(4)  
(5)  
(6)  
(7)  
IMPORTANT  
If warning label peels off or becomes soiled and  
impossible to read, you should contact the dealer  
from which you purchased the product to order new  
labels and affix them in the required location(s).  
15m (50ft)  
(1) Read owner’s manual before operating this machine.  
(2) Wear head, eye and ear protection.  
(3) Wear foot protection.  
(4) Wear gloves.  
(5) Beware of thrown objects.  
(6) Warning / Attention  
WARNING  
Never modify your machine.  
We won’t warrant the machine, if you use the  
remodeled brushcutter or if you don’t observe  
the proper usage written in the manual.  
(7) Keep all children, bystanders and helpers 15 meters away from the machine.  
12.Keep firm footholds and balance at all times.  
Do not use the unit where footing is unsteady  
24.Stop the engine and blade before removing  
material that is blocking or entangling the  
cutting attachment.  
2
For safe operation  
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)  
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.  
27.Always wear safety boots, additionally a  
helmet is required if there is a risk of contact  
with falling objects.  
1. Read this manual carefully until you completely  
understand and can follow all safety notes,  
precautions, and operating instructions before  
using of the unit.  
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.  
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 at least 3  
meters away from fueling site before starting  
the engine.  
10.Check the condition of working area to 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.  
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.  
3
Setup  
ENGINE  
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  
storage or transporting to prevent loss of fuel,  
damage or injury.  
18.When replacing cutting attachment or other  
components, be sure to use the parts supplied  
or recommended by 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.  
[BC2311LE/BC2611LE/WE]  
1. Loosen the bolts temporarily attached to the  
clutch housing.  
2. Push the drivershaft toward the gearcase and  
rotate it by hand to check that the driveshaft is  
engaged with the gears.  
3. Insert the shaft tube into the clutch housing until  
it bottoms. When difficult to engage, twist the  
engine slightly.  
4. Align the positioning holes on the clutch  
housing and the shaft tube and fit the bolt into  
the holes. And fasten the tightning bolts by  
turns securely.  
(Tightning torque: 4.9~7.8N.m. (0.5~0.8kgm))  
(1) Positioning hole  
(2) Bolt (M5x10)  
(3) Tightning bolt (M5x22)  
1-9 Minamidai, Kawagoe, Saitama, 350-1165 Japan  
ZENOAH CO., LTD.  
 
4. Move the choke lever to the closed position.  
5. Set the stop switch to the “RUN” position.  
Place the unit on a flat, firm place.  
Keep the cutting head clear of everything  
around it.  
the head and cause the clutch to slip, resulting  
in damage to the clutch system if repeated  
frequently.  
ADJUSTING THE LINE LENGTH  
(1)  
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.  
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.  
(1) Cable adjuster  
ADJUSTING IDLING SPEED  
1. When the engine tends to stop frequently at  
idling mode, turn the adjusting screw clockwise.  
2. When the cutting head keeps rotating after  
releasing the trigger, turn the adjusting screw  
counter-clockwise.  
(1)  
(1) Stop switch  
6. While holding the unit firmly, pull out the starter  
rope quickly until engine fires.  
6
Maintenance  
WARNING  
(1) Idle adjusting screw  
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.  
NOTE  
WARNING  
Warm up the engine before adjusting the idling  
speed.  
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.  
CUTTING WORK  
AIR FILTER  
By using the shoulder strap, hang the unit on  
your right side. Adjust the strap length so that  
the cutting head may become parallel to the  
ground.  
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.  
(1) Shoulder strap  
(1) Air filter  
Choose a suitable recommended cutting  
attachment according to the object to be cut.  
Never use other cutting attachment not  
approved by ZENOAH.  
FUEL FILTER  
IMPORTANT  
Avoid pulling the rope to its end or returning it by  
releasing the knob. Such actions can cause starter  
failures.  
When the engine runs  
short of fuel supply,  
check the fuel cap and  
the fuel filter for  
blockage.  
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.  
(1) Fuel filter  
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 replacement plug, use  
the correct type specified by  
ZENOAH.  
NOTE  
1. When restarting the engine immediately after  
stopping it, leave the choke open.  
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.  
LINE HEAD USAGE  
0.6~0.7mm  
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.  
REPLACEMENT PLUG IS A NGK BPMR7A.  
STOPPING ENGINE  
1. Release the throttle trigger and run the engine  
for half a minute.  
IMPORTANT  
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  
2. Shift the stop switch to the STOP position.  
TRIMMING GRASS AND WEEDS  
(1)  
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.  
(1)  
finger tight, then tighten it a  
quarter turn more with a  
socket wrench.  
1. Hold the unit so the head is off the ground and  
is tilted about 20 degrees toward the sweep  
direction.  
(1) Stop switch  
Tightning torque: 9.8~11.8N.m. (1.0~1.2kgm))  
2. Use full throttle when cutting.  
IMPORTANT  
Except for an emergency, avoid stopping the  
engine while pulling the throttle lever.  
3. You can avoid thrown debris by sweeping from  
your left to the right.  
REFILLING TRIMMING LINE  
1. For replacement line, use a diameter of 2.4mm.  
The spool is capable for a line upto 6m 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  
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  
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.  
ADJUSTING THROTTLE CABLE  
The normal play is 1 or 2 mm when measured  
at the carburetor side end. Readjust with the  
cable adjuster as required.  
7. Take precautions to avoid wire, grass and  
dead, dry, long-stem weeds from wrapping  
around the head shaft. Such materials can stall  
1~2mm  
(1) Cable adjuster  
(1)  
 
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. Line up the slot on the bottom cap with the hook  
on the housing, press the cap against the  
housing until it clicks.  
IMUFFLER  
WARNING  
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.  
INTAKE AIR COOLING VENT  
WARNING  
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.  
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 in  
order to be able to view the upper part of the  
cylinder.  
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.  
Check all parts and the functions. If the failured  
or damaged parts have been found, replace  
them with new ones.  
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.  
GEAR CASE  
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.  
Remove the bolt opposit to the grease nipple  
before installing new grease to arrange for old  
grease to exit.  
(1) Cylinder  
(2) Intake air cooling vent  
7
Specifications  
MODEL CODE  
Overall size  
Length  
Unit  
BC2311LE  
BC2611LE  
BC2611WE  
BC3501LE  
BC3501WE  
BC4501WE  
mm  
mm  
mm  
Kg  
1815  
420  
295  
5.0  
G23LS  
22.5  
650  
560  
5.3  
1845  
420  
360  
7.1  
G35L-D  
33.6  
0.74  
650  
560  
7.6  
Width  
Height  
Dry weight  
Engine model  
5.1  
7.8  
G45L-D  
41.5  
0.94  
G26LS  
25.4  
0.75  
Displacement  
cc  
Carburetor  
Diaphragm  
50:1 (Gasoline and 2cycle oil)  
0.6  
5000~8000  
BPMR7A  
Two-shoe Centrifugal-Type  
Fuel (Mixture ratio)  
Fuel tank capacity  
Service range  
Spark plug  
litter  
rpm  
Clutch system  
Anti-vibration system  
Housing  
Handle-bracket  
Yes  
No  
Yes  
Gearhead  
Neck angle  
Reduction ratio  
Blade rotation  
Handle type  
Throttle lever  
Standard cutter  
Harness type  
deg  
60  
1.462  
Counter-clockwise  
Both  
1.40  
Loop  
Double  
Both  
Loop  
Trigger Type (With Safety-lock)  
Nylon  
Single  
Yes  
Quick release  
Standard accessories  
Goggle  
Tool-kit  
Owner's manual  
Specifications are subject to change without notice.  
 

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