Zenoah BC4350FW User Manual

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

For safe operation

115 32 08-26 (001)

OWNER’S MANUAL

15

m

(50ft)

(1) (2) (3) (4) (5) (6) (7)

1

2

(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
(7) Keep all children, bystanders and helpers 15 meters away from the machine.

Explanation of pictorials

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.

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)
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
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.

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.

27. Always wear safety boots, additionally a
helmet is required if there is a risk of
contact with falling objects.

Thank you for purchasing a ZENOAH product.
Before using our brushcutter, please read this manual carefully
to understand the proper use of your unit.

1-9 Minamidai, Kawagoe, Saitama, 350-1165 Japan

BRUSHCUTTERS

BC4350FW

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).

IMPORTANT

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.

WARNING

■ ENGINE

• Using attached 4 socket screws, secure the
connection firmly with equal force.

■ HANDLE

1. Loosen the 4 bolts on the upper cap and
insert the handles equally. Retighten the
bolts.

2. Put the handle assembly into the bracket
and put the upper cap over it. Tighten the
cap securely.

■ PROTECTOR

Wrap the protector around the outer pipe as
shown in the figure, and fasten the magic
fastener.

(1) Protector

■ BLADE GUARD

Attach the guard on the outer pipe. Fix it with 2
bolts.

■ INSTALLING BLADE

Remove the guard skirt of debris guard,
when using metal blade.

1. Put the angled bar(1) into the side holes of
the inner holder and the gearcase.

2. Remove the nut(Left-handed) and the outer
holder(3) from the gearshaft.

3. Put the blade onto the inner holder(2). Make
the marked side face the holder.

4. Put the outer holder(3) onto the gearshaft
making the recessed side face the blade.

5. Fasten the blade by the nut.

■ BALANCE UNIT

1. Put on strap and attach unit to strap.

2. Slide clamp up or down until unit balances
with head aparting from the ground when
using it.

• Gasoline is very flammable. Avoid
smoking or bringing any flame or sparks
near fuel. Make sure to stop the engine
and allow it cool before refueling the
unit. Select outdoor bare ground for
fueling and move at least 3m (10ft) away
from the fueling point before starting the
engine.

RECOMMENDED MIXING RATIO

GASOLINE 50:OIL 1

(when using ZENOAH genuine oil)

• The Zenoah engines are lubricated by oil
specially formulated for air-cooled 2-cycle
gasoline engine use. If Zenoah oil is not
available, use an anti-oxidant added quality
oil expressly labeled for air-cooled 2-cycle
engine use. (JASO FC GRADE OIL or ISO
EGC GRADE)

• Do not use BIA or TCW (2-stroke water­cooling type) mixed oil.

• Exhaust emission are controlled by the
fundamental engine parameters and
components (eq., carburation, ignition
timing and port timing) without addition
of any major hardware or the introduction
of an inert material during combustion.

• These engines are certified to operate on
unleaded gasoline.

• Make sure to use gasoline with a minimum
octane number of 89 RON (USA/Canada:
87AL)

• If you use a gasoline of a lower octane value
than prescribed, there is a danger that the
engine temperature may rise and an engine
problem such as piston seizing may
consequently occur.

• Unleaded gasoline is recommended to
reduce the contamination of the air for the
sake of your health and the environment.

• Poor quality gasolines or oils may damage
sealing rings, fuel lines or fuel tank of the
engine.

■ HOW TO MIX FUEL

Pay attention to agitation.

1. Measure out the quantities of gasoline and
oil to be mixed.

2. Put some of the gasoline into a clean,
approved fuel container.

3. Pour in all of the oil and agitate well.

4. Pour In the rest of gasoline and agitate again

IMPORTANT

■ STARTING ENGINE

The cutting head will start rotating upon the
engine starts.

1. Feed fuel into the fuel tank and tighten the
cap securely.

WARNING

5

Operation

4

Fuel

for at least one minute. As some oils may be
difficult to agitate depending on oil
ingredients, sufficient agitation is necessary
for the engine to last long. Be careful that, if
the agitation is insufficient, there is an
increased danger of early piston seizing due
to abnormally lean mixture.

5. Put a clear indication on the outside of the
container to avoid mixing up with gasoline or
other containers.

6. Indicate the contents on outside of container
for easy identification.

■ FUELING THE UNIT

1. Untwist and remove the fuel cap. Rest the
cap on a dustless place.

2. Put fuel into the fuel tank to 80% of the full
capacity.

3. Fasten the fuel cap securely and wipe up
any fuel spillage around the unit.

1. Select bare ground for fueling.

2. Move at least 10feet (3meters) away from
the fueling point before starting the
engine.

3. Stop the engine before refueling the unit.
At that time, be sure to sufficiently agitate
the mixed gasoline in the container.

FOR YOUR ENGINE LIFE, AVOID;

1. FUEL WITH NO OIL(RAW GASOLINE) – It
will cause severe damage to the internal
engine parts very quickly.

2. GASOHOL – It can cause deterioration of
rubber and/or plastic parts and disruption of
engine lubrication.

3. OIL FOR 4-CYCLE ENGINE USE – It can
cause spark plug fouling, exhaust port
blocking, or piston ring sticking.

4. Mixed fuels which have been left unused
for a period of one month or more may
clog the carburetor and result in the
engine failing to operate properly.

5. In the case of storing the product for a long
period of time, clean the fuel tank after
rendering it empty. Next, activate the engine
and empty the carburetor of the composite
fuel.

6. In the case of scrapping the used mixed oil
container, scrap it only at an authorized
repository site.

As lot details of quality assurance, read the
description in the section Limited Warranty
carefully. Moreover, normal wear and change
in product with no functional influence are not
covered by the warranty. Also, be careful that,
if the usage in the instruction manual is not
observed as to fhe mixed gasoline, etc.
described therein, if may not be covered by the
warranty.

NOTE

3

Setup

WARNING

WARNING