GD Rapter RR BC 20-42.7 User manual

[EN] SHOULDER BRUSH CUTTER - ORIGINAL
OWNER’S MANUAL
[BG] МОТОРНА КОСА БЕНЗИНОВА - ОРИГИНАЛНА
ИНСТРУКЦИЯ ЗА ЕКПЛОАТАЦИЯ
[RO] MOTOCOASA - MANUAL ORIGINAL
MODELS/МОДЕЛИ: RR BC 20-42.7/LDBC430G
RR BC 20-52/LDBC520G
Producer / Производител / Producator: KPT, Ltd
Made in / Произход / Fabricant in: PRC / КНР
Importer / Вносител: Дженерал Дистрибюшън АД
1784 София, ж.к. Младост 1, бул. Андрей Ляпчев 51
Importator: Heli FLT S.R.L. Bucharest, District 1, Blvd Bucurestii Noi, no 32

2
Set content/ Съдържание на комплекта / Setul contine:
1. Instruments/ Комплект инструменти/ Instrumente:
1.1. Tool plastic bag 1 pc/ 1 бр. найлонов плик с инструменти / Pungă de
platic 1 buc
1.2. Socket spanner 1 pc/ 1 бр. комбиниран ключ вложка за свещи/ Cheie
1 buc
1.3. Dual-purpose screwdriver 1 pc/ 1 бр. двуфункционална отвертка/
Şurubelniță dublă, 1 buc
1.4. 4 mm inner hexagon spanner 1 pc/ 1 бр. шестограм 4 mm/ Cheie
hexagonal 4 mm , 1 buc
1.5. 5 mm inner hexagon spanner 1 pc/ 1 бр. шестограм 5 mm/ Cheie
hexagonal 5 mm , 1 buc
1.6. 8 mm, 10mm open spanner 1 pc/ 1 бр. 8, 10 mm гаечен ключ/ Cheie
xa 8-10 mm, 1 buc
1.7. Ribbon 2 pc/ 2 бр. кабелна превръзка/ Bandă 2 buc
1.8. Screws for output seat 4pcs/ болт за изходна глава 4 бр./ Şuruburi
pentru ieşire din loc 4 buc
1.9. Small metal blade for safety guard 1 pc/ 1 бр. метален нож за корда/
Lame metalice mici pentru grilajul de siguranță 1 buc
1.10. Screw for small metal blade of the safety guard 1 pc / 1 бр. болт
за ножа за корда/ Şurub pentru lame metalice mici pentru grilajul de
siguranță 1 buc
1.11. Funnel sieve 1 pc/ 1 бр. цедка за фуния/ Pâlnie sită 1 buc
2. Nylon cutter head/ 1 бр. Магазин с корда / Cap de freză nailon
3. Metal cutting blade/ 1 бр. Метален тризъб (за косене на храсти и
сплъстени треви)/ Lamă de tăiere metal
4. Double-hooks belt/ 1 бр. презрамка (регулируем ремък)/ Dublu cârlig
centură
5. Owner’s manual 1 pc/ 1 бр. инструкция за експлоатация/ Manual utilizare
1 buc

3
CONTENTS
SET CONTENT
INTRODUCTION/TECHNICAL DATA
GRAPHIC WARNINGS
SAFETY RULES & PRECAUTIONS
DESCRIPTION
ASSEMBLY
RULES FOR SAFE OPERATION
CUTTING WITH A NYLON HEAD
CUTTING WITH A BLADE
FUEL & OIL MIXTURE
PREPARING FOR OPERATIONS
OPERATIONS
MAINTENANCE & CARE
TRANSPORT, HANDLING/EXTENDED STORAGE
TROUBLE SHOOTING
TROUBLESHOOTING GUIDE
2
4
6
7
11
13
15
16
18
20
21
22
23
23
24
25
EN

4
INTRODUCTION
Thank you for your purchasing the brush cutter of our Company. The present
manual explains how to handle the brush cutter well. Before using it, please
read this operator‘s manual carefully, operate the machine correctly and
engage in your task with safely . By the way, due to changes of specications,
all details of your machine may not agree with this manual. Please understand
accordingly.

5
TECHNICAL DATA
Technical Data subject to be changed without notice.
Model RR BC 20-42.7 RR BC 20-52
Main unit
Remote type Automatic centrifugal clutch;
Spiral bevel gear; Drive shaft
Automatic centrifugal clutch;
Spiral bevel gear; Drive shaft
Maximum speed of gear shaft/
engine speed (r/min)
8500-9000 8500-9000
Idle speed (r/min) 3000±200 3000±200
Vibration values
at each handle(m/s )
≤15 ≤15
The equivalent A-weighted emission sound pressure level at the operator’s position and the A
weighted sound power level shall be measured and calculated in accordance with ISO22868
Sound pressure values [dB(A)]
(ISO22868)
=96 dB(A) =96 dB(A)
Sound power values [dB(A)]
(ISO22868)
=113 dB(A) =113 dB(A)
Vibration (ISO22867) ahveq: 5.79 m/s2ahveq: 5.79 m/s2
Reduction ratio 15:20 15:20
Blade rotation direction Counter-Clockwise
(seen from the top) Counter-Clockwise
Type of handle Both Hands shaped with “U” Both Hands shaped with “U”
Weight when dry (kg) 7.2 7.4
Engine
Name of engine 1E40F-5 1E44F-5
Type Air-cooled; 2 cycle; vertical
piston valve; gasoline engine
Air-cooled; 2 cycle; vertical
piston valve; gasoline engine
Displacement (cm3) 42.7 52
Rated output 1.25 kW 1.45 kW
Maximum output (kW/r/min) 1.45/6500 1.75/6500
Carburetor Diaphragm-type Diaphragm-type
Ignition Non-contact electronic
ignition
Non-contact electronic
ignition
Method of starting Recoil starter Recoil starter
Fuel used Gasoline mixed with 2-stroke
lubricating oil
(ratio of 25:1)
Gasoline mixed with 2-stroke
lubricating oil
(ratio of 25:1)
Fuel tank capacity (L) 1200 ml 1200 ml
Dry weight (kg) 4.1 4.2
Length of main pipe section (mm) 1500 1500
Length of drive shaft section (mm) 1530 1530
Standard blades (mm) 255 mm*1.6 mm*25.4 mm*3T
manganese blade and
440 mm nylon cutter head
255 mm*1.6 mm*25.4 mm*3T
manganese blade and
440 mm nylon cutter head

6
GRAPHIC WARNINGS
Because a trimmer/cutter is a high-speed, fast cutting power tool, special safety
precaution must be observed to reduce the risk of personal injury. Read this
manual carefully. Be familiar with the controls and the proper use of the unit.
Know how to shut it o, and how to unhook a harnessed unit quickly.
This graphic accompanied by the words WARNING and DANGER calls
attention to an act of a condition which can lead to SERIOUS INJURY.
READ & UNDERSTAND Operator‘s Manual and Safety Manual.
ALWAYS WEAR EYE AND EAR PROTECTION
Always TURN OFF ENGINE and make sure the cutting tool has
stopped before cleaning, removing or adjusting blade.
WARNING! Never modify a trimmer or cutter in any way. Improper
use of any trimmer can cause SERIOUS ORFATAL PERSONAL INJURY.
WARNING DANGER
The engine exhaust from this product contains chemicals to cause cancer, birth defects, of
other reproductive harm.
Specications, descriptions and illustrative material in this manual are as accurate as known at the
time of publication, but are subject to change without notice. Illustrations may include optional
equipment and accessories, and may not include all standard equipment.
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD

7
SAFETY RULES & PRECAUTIONS
Because a trimmer/cutter is a high-speed, fast cutting power tool, special safety
precaution must be observed to reduce the risk of personal injury. Read this
manual carefully. Be familiar with the controls and the proper use of the unit.
Know how to shut it o, and how to unhook a harnessed unit quickly.
Proper safety precautions must be observed. Like all power equipment this unit
must be handled carefully. Do not expose yourself or others to danger follow
these general rules. Do not permit others to use this machine unless they are
thoroughly responsible and have read, and understand the machine manual
and are trained in its operation.
• Always wear safety goggles for eye protection. Dress properly; do not wear
loose clothing or jewelry that could become caught in moving parts of the unit.
Safe, sturdy, nonskid footwear should always be worn. Long hair should be tied
back. It is recommended that legs and feet be covered to protect from ying
debris during operation.
• Inspect the entire machine for loose parts (nuts, bolts, screws, etc.) and any
damage. Repair or replace as necessary before using the machine.
• DO NOT USE any attachment with this power head other than the ones
recommended by our company. Serious injury to the operator or bystanders
could result as well as damage to the machine.
• Keep the handles free from oil and fuel.
• Always use proper handles and shoulder strap when cutting.
• Do not smoke while mixing fuel or lling tank.
• Do not mix fuel in an enclosed room or near open ames. Assure adequate
ventilation.
• Always mix and store the fuel in a properly marked container that is approved
by local codes and ordinances for such usage.
• Never remove the fuel tank cap while the engine is running.
• Never start or run the engage inside a closed room or building. Fumes from
the exhaust contain dangerous carbon monoxide.
• Never attempt to make engine adjustments while the unit is running and
strapped to the operator. Always make engine adjustments with the unit resting
on a at, clear surface.
• Do not use the unit if it is damaged or poorly adjusted. Never remove the

8
machine‘s guard. Serious injury to the operator or bystanders could result as
well as damage to the machine.
• Inspect the area to be cut and remove all debris that could become entangled
in the nylon cutting head. Also remove any objects that the unit may throw
during cutting.
• Keep children away. Onlookers should be kept at a safe distance from the work
area, at least 15 METER (50 FEET)
• Never leave the machine unattended.
• Do not use this unit for any job other than those for which it is intended as
described in this manual.
• Do not overreach. Keep proper footing and balance at all times. Do not run the
unit while standing on a ladder or on any other unstable footing location.
• Keep hands and feet clear of the nylon cutting head while unit is in use .
• Do not use this type of machine for sweeping away debris.
• Do not use the unit when you are tired, ill or under the inuence of medication,
drugs or alcohol.
• Use nylon cutting head which is free of damage. If a stone or any other obstacle
is hit, stop the engine and check the nylon cutting head. A broken or unbalanced
nylon cutting head must never be used.
FOLLOW INSTRUCTION FOR CHANGING ACCESSORIES.
• Do not store in a closed area where fuel vapors can reach an open ame from
hot water heaters, heaters, furnaces, etc. Store in a locked, well ventilated area
only.
• Еnsure safe and proper performance of your product. These parts are available
from your dealer. The use of any other accessories or attachments may cause
a potential hazard or injury to the user, damage to the machine and void this
warranty.
• Clean the machine completely, especially, the fuel tank, its surroundings, and
the air cleaner.
• When refueling, be sure to stop the engine and conrm that it is cooled down.
Never refuel when the engine is running or hot. When gasoline spills, be sure to
wipe it up completely and properly dispose of those materials before starting
the engine.
• Stay clear of other workers or bystanders by at least 15 meters /50 feet.
• Whenever approaching an operator of the machine, carefully call his attention
and conrm that the operator stops the engine. Be careful not to startle or
distract the operator which can cause an unsafe situation.
• Never touch the nylon cutting head whenever the engine is running. If it is

9
necessary to adjust the protector or nylon cutting head, be sure to stop the
engine and conrm that the nylon cutting head has stopped running.
• The engine should be turned o when the machine is moved between work
areas.
• Be careful not to hit the nylon cutting head against stones, or the ground.
Unreasonable rough operation will shorten the life of the machine as well as
create an unsafe environment for yourself and those around you.
• Pay attention to loosening and overheating of parts. If there is any abnormality
of the machine, stop operation immediately and check the machine carefully. If
necessary, have the machine serviced by a authorized dealer. Never continue to
operate a machine which may be malfunctioning.
• In start-up or during operation of the engine, never touch hot parts such as the
muer, the high voltage wire or the spark plug.
• After the engine has stopped, the muer is still hot. Never place the machine
in any places where there are ammable materials (dry grass, etc.), combustible
gasses or combustible liquids.
• Pay special attention to operation in the rain or just after the rain as the ground
may be slippery.
• If you slip or fall to the ground or into a hole, release the throttle lever
immediately.
• Be careful not to drop the machine or hit it against obstacles.
• Before proceeding to adjust or repair the machine, be sure to stop the engine
and detach the spark plug cap from the spark plug.
• When the machine is placed in storage for a long time, drain fuel from the
fuel tank and carburetor, clean the parts, move the machine to a safe place and
conrm that the engine is cooled down.
• Make periodic inspections to assure safe and ecient operation. For a thorough
inspection of your machine, please contact a dealer.
• Keep the machine away from re or sparks.
• It is believed that a condition called Raynaud‘s phenomenon, which aects the
ngers of certain individuals may be brought about by exposure to vibration
and cold. Exposure to vibration and cold may cause tingling and burning
sensations followed by loss of color and numbness in the ngers. The following
precautions are strongly recommended because the minimum exposure which
might trigger the ailment is unknown.
Keep your body warm, especially the head, neck, feet, ankles, hands and wrists.
Maintain good blood circulation by performing vigorous arm exercises during
frequent work breaks and also by not smoking.

10
Limit the hours of operation. Try to ll each day with jobs where operating the
brush cutter or other hand-held power equipment is not required.
If you experience discomfort, redness and swelling of the ngers followed by
whitening and loss of feeling, consult your physician before further exposing
yourself to cold and vibration.
• Always wear ear protection, loud noise for long time can make hearing debase
even lost hearing.
Total face and head protection must be wearing to prevent damage from
plummet or branch.
• Wear no-slip heavy duty work gloves to improve your grip on the brush cutter
handle. Gloves also reduce the transmission of machine vibration to your hands.
• WARNING: The cutter area is still dangerous while the machine is coasting to
a stop.

11
DESCRIPTION

12
DESCRIPTION
SAFETY MANUAL included with unit.
Read before operating and keep for future reference to learn proper, safe
operating techniques.
1. BLADE Circular blade for grass, weed or brush cutting applications. Harness,
metal shield and U-Handles required for blade operation.
2. DRIVE SHAFT ASSEMBLY Contains a specially designed liner exible drive
shaft.
3. THROTTLE TRIGGER Spring loaded to return to idle when released. When
accelerating, press trigger gradually for best operating technique .Do not hold
trigger while starting.
4. IGNITION SWITCH “slide switch” mounted on top of the Throttle Trigger
Housing. Move switch FORWARD to Run, BACK to STOP.
5. SAFETY LEVER Before acceleration, compress it please.
6. U-HANDLE this handle can be adjusted at you convenience for comfort.
7. HARNESS ASS’Y a attachment which hang the machine on the operator and
adjustable in length.
8. AIR CLEANER COVER Contains replaceable felt element.
9. FUEL TANK LID.
10. FUEL TANK Contains fuel and fuel lter.
11.PURGE BULB Pushing purge lulb (7 to 10 times before starting),will remove
all air and stale fuel from fuel system and bring fresh fuel to the carburetor.
12. CHOKE the choke control is located on the top of the lter cover.
COLD STARTS Pull lever up to close choke for cold starts. Push lever down for
RUN position.
13. DEBRIS SHIELD Mounted just above the cutting attachment .Helps protect
operator by deecting debris produced during the trimming operation .Do not
operate unit without shield.
14. CUT-OFF KNIFE Trims nylon lament to the correct length-7“,head to end of
line-when nylon trimming head is bumped on the ground during operation,
line advance. If trimmer is operated without a cut-o knife the line becomes
too long (more than 7“) the operating speed will slow down the engine, this will
overheat or damage the engine.
15. NYLON CUTTER HEAD Contains replaceable nylon trimming line that
advances when the trimmer head is tapped against the ground while the head
is turning at normal operating speed.

13
ASSEMBLY

14
ASSEMBLY
EXESSIVE VIBRATION! STOP ENGINE IMMEDIATELY! Excessive vibration of blade means that it is not
properly installed. Stop engine immediately and check blade. Blade improperly installed will cause
injury. Use only our company original cutting equipment parts when servicing the unit.
WARNING CAUTION
Counter
clockwise

15
RULES FOR SAFE OPERATION
Read the operator‘s manual carefully. Be thor-
oughly familiar with the controls and proper
use of the unit. Know how to stop the unit
and shut o the engine.Know how to unhook
a harnessed unit quickly.
Never allow anyone to use the unit without
proper instruction.Be sure the operator wears
the foot, leg, eye, face and hearing protection.
Do not rely on the debris shield on the unit to
protect your eyes from ricocheting or thrown
objects. Keep the area clear of bystanders,
children and pets. Never allow children to
operate or play with the unit.
Do not allow anyone to enter the operating
DANGER ZONE with you. The danger zone
is an area 15 meters in radius (about 16 paces)
or 50 feet.
Insist that persons in the RISK ZONE beyond
the danger zone wear eye protection from
thrown objects. If the unit must be used
where there are unprotected people, operate
at a low throttle speed to reduce the risk of
thrown objects. Move the stop switch to
„stop“ position when the engine idles, insure
it reliable before cutting. Only may continue
to operate the unit when stop switch is in
good condition.
Routines for checking that the cutting
attachment stops turning when the engine
idles.
WARNING DANGER
All models trimmers and brush cutters can
throw small stone , metal or small objects
as well as the material being cut. Read
these“Rules for Safe Operation“with care.
Follow the instructions in your operator‘s
manual.
WARNING DANGER
In addition to head, eye, face and ear protec-
tors shoes to protect your feet improve your
footing on slippery surfaces. Do not wear
ties,
jewelry, or loose, dangling clothing which
could be caught in the unit.
Do not wear open-toed footwear, or go bare-
foot or bare legged. In certain situations you
must wear total face and head protection.
Pay attention not to kick back and blade
thrust.
15 METERS
50 FEET
NO PERSON EXCEPT OPERATOR ALLOWED 15 METERS RADIUS DANGER ZONE.EYE,EAR,FACE,
FOOT,LEG AND BODY PROTECTION MUST BE WORN BY OPERATOR.PERSONS IN ZONE OR RISK
BEYOND DANGER ZONE SHOULD WEAR EYE PROTECTION AGAINST THROWN OBJECTS.RISK
DIMINISHES WITH DISTANCE FROM DANGER ZONE.

16
CUTTING WITH A NYLON HEAD
WARNING CAUTION
The proper debris shield must be in place
on the unit when nylon cutting line is used.
The cutting line can ap around if too much
line is exposed. Always use the plastic debri
shield with cut-o knife when using nylon
cutting heads.
WARNING CAUTION
Use only quality nylon monolament line of
the diameter 2.5mm. Never use wire or wire
reinforced line in place of nylon trimmer line.
Load your nylon line cutting head only with
nylon trimmer line of the proper diameter.
WARNING CAUTION
Use extreme caution when operating over
bare spots and gravel, because the line can
throw small rock particles at high speeds.
Debris shields on the unit cannot stop
objects which bounce or ricochet o hard
surfaces.
Line head rotates in a CLOCKWISE direction.
The CUT-OFF KNIFE will be on the right side of
the debris shield.
For nearly all cutting, it is good to tilt the line
head so that contact is made on the part
of the line circle where the line is moving
AWAY from you and the debris shield. (See
appropriate picture) .This results in the
debris being thrown AWAY from you.
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD

17
WARNING CAUTION
Do not to use a steel blade for edging or
capping.
WARNING CAUTION
Do not trim in any area where there are
strands of fencing wire. Wear protective safety
protecting. Do not cut where you cannot see
what the cutting device is cutting.
TRIMMING:
This is feeding the trimmer carefully into the
material you wish to cut. Tilt the head slowly
to direct debris away from you. If cutting up to
a barrier such as fence, wallor tree, approach
from an angle where anydebris ricocheting
o the barrier will y away from you. Move
the line head slowly until the grass is cut right
up the barrier, but do not jam(overfeed )the
line into the barrier. If trimming up to a wire
mesh or chain linked fence be careful to feed
only up to wire. If you go to far the line will
snap o around the wire. Trimming can be
done to cut through weed stems one at a time.
Place the trimmer line head near the bottom
of the weed-never high up which could cause
the weed to chatter and catch the line. Rather
than cut the weed right through, just use the
very end of the line to wear through the stem
slowly.
SCALPING AND ENGING:
Both of these are done with the line head
tilted at a steep angle Scalping is removing
top growth leaving the earth bear. Edging is
trimming the grass back where it has spread
over a sidewalk or drive way. During both
edging and scalping, hold the unit a steep
angle and in a position where the debris, and
any dislodging dirt and stones, will not come
back towards you even if it ricochets o the
hard surface. Although the picture shows how
to edge and scalp every operator must nd for
himself the angles which suits his body size
and cutting situation.
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD

18
CUTTING WITH A BLADE
CUTTING WITH A BLADE
There are many dierent types of blades;
however the two most commonly used are
the following.
BRUSHBLADE is used for cutting brush and
weeds up to 3/4“ in diameter. Only CG420-2
255mm 3-blade can be used in this type of
brush cutter.
SAWBLADE is used for cutting growth from
3/4“ to 3“ in diameter.
WARNING CAUTION
Use the shoulder harness at all times. Adjust
both harness and harness clamp on the unit
so that the unit hangs a few inches above
ground level. The cutting head and the metal
debris shield should be level in all directions.
Harness the unit on the right side of your
body.
WARNING CAUTION
DO NOT USE A BRUSH CUTTER
FOR CUTTING TREES.
WARNING CAUTION
Do not cut with dull, cracked or damaged
metal blade. Before cutting growth, inspect
for obstructions such as boulders, metal
stakes or strands of wire from broken fences.
If an obstruction cannot be removed, mark
its location so that you can avoid it with the
blade. Rocks and metal will dull or damage a
blade. Wires can catch on the blade head and
ap around or be thrown into the air.
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD

19
SCYTHING WEEDS. This is cutting by swinging
the blade in a level arc. It can quickly clear
areas of eld grass and weeds. Scything
should not be used to cut large, tough weeds
or woody growths.
Scything can be done in both directions, or
just in one way which results in the debris
being thrown away from you.
That is using the side of the blade that it is
rotating away from you. Tilt down the blade
slightly on this same side .You will be hit by
some debris if you scythe in both directions.
SAWING This must be done with a saw blade
when the weeds are too thick and strong for
scything.
If kickback occurs, the blade may be dull,
or the material so thick and hard that you
should use a saw blade instead of the brush
blade.
Growth up to 7.62 cm in diameter, which
is too thick for scything, may be cut by
sawing. Sawing requires judgment on your
part whether to cut on the side where the
blade pulls away from you but throws back
the debris ,or on the side where the debris
is thrown away from you but the reaction is
push which could become a sickout (blade
thrust).
Always cut on the side of the tree which will
cause the tree to fall away from the unit. A
kickout or bind may result if the tree falls
toward the unit and pinches the blade.
Do not force the blade to cut. Do not change
the angle of cut after into the wood. Avoid
using any pressure or leverage which could
cause the blade to bind or crack.
NOTE
Do not use a brush blade to cut trees which
exceed a diameter of 1,27 to 1,905 cm.
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD

20
FUEL AND OIL MIXTURES
• Never ll the fuel tank to the very top.
• Never add fuel to the tank in a closed non-ventilated area.
• Do not add fuel to this unit close to an open re or sparks.
• Be sure to wipe o spilled fuel before attempting to start engine.
• Do not attempt to refuel a hot engine.
Fuel used for this model is a mixture of unleaded gasoline and approved engine lubricant.
When mixing gasoline with two-cycle engine oil, use only gasoline which contains NO
ETHANOL or METHANOL (Types of Alcohol) Use Branded 89 octane or higher unleaded
gasoline known to be of good quality. This will help to avoid possible damage to engine fuel
lines and other engine parts.
Fuel mixture at the rate
other than 25:1 may cause
damage to the engine,
Ensure mixture
ratio is correct.
FUEL
The engine uses two-stroke fuel, a mixture
of gasoline and 2-stroke lubricant 25:1
GASOLINE
Use branded 89 octane or higher unleaded
gasoline known to be of good quality.
STORING FUEL
Store fuel only in a clean, safe, aprroved
ontainer. Check and follow local
ordinances on type and location of
storage container.
IMPORTANT
Two-stroke fuel may separate.Shake fuel
container thoroughly before each use.
Stored fuel ages. Do not mix more fuel than
you expect to use within a month.
FUEL AND OIL MIXTURE
Inspect fuel tank making sure that it is clean
and fill with fresh fuel. Use a mixture of 25-1.
WARNING!
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD
ON LEFT SIDE
CUT-OFF KNIFE
CUT ON
COUNTER CLOCK WISE ROTATION
THIS SIDE
SCALPING
EDGING
AVOID WIRE
TO WALL
ANGLE
GROUND
RAISED
KNIFE SIDE
TRIMMING
ANGLE TO
DEBRIS
WARNING DANGER
DO NOT TOUCH THESE TYPES OF
OBJECTS WITH BLADE
METAL STAKES
UTILITY WIRES RUBBER
ROCKS
MASONRY
FENCES
DO NOT
HACK LARGE
TREES
BINDING
SAWING SAPLINGS
OIL-1 PART
GASLINE
25 PART
FILTER COVER KNOB
0.6-0.7mm(0.023"-0.028"in.)
CHOKE
Max Speed
10000r/min
BLADE
BLADE
INSTALLING BLADE GUARD
GUARD
13
Two-stroke oil
• For the best results use high level two-stroke oil. Mixing ratio 1:25 (4%).
• Never use oil intended of four-stroke engines.
Mixture
• Always mix petrol and oil in a clean container intended for petrol.
• Always start by filling half the quantity of petrol required. Then add the entire oil quantity. Mix (shake) the fuel mixtu-
re. Fill the remaining quantity of petrol.
• Mix (shake) the fuel mixture carefully before filling in the machine's fuel tank.
• Do not mix more than max. one month's supply of fuel.
• If the brush cutter is not used for a long period of time, the fuel tank should be emptied and cleaned.
Fuelling
WARNING!
The following precautions reduce the risk of fire:
Do not smoke or place any sources of heat in the vicinity of the fuel. Never refuel when the engine is running. Always
stop the engine and let it cool for a few minutes before refuelling. Open the fuel cap slowly when fuelling so that any
over pressure is released slowly. Tighten the fuel cap carefully after refuelling. Always move the machine from the
fuelling place before starting.
Clean around the fuel cap. Contamination i the tank can disr operations.
Ensure that the fuel is well mixed by shaking the container before filling the tank.
Always use a fuel container with an anti-spill valve.
4% (1:25)
5
10
15
20
Gasoline
Oil
0,20
0,40
0,60
0,80
MIXTURE RATIO IS 25:1 - GASLINE-25 PART, OIL-1 PART