GP GP-4019BC User manual
Note: Please read the following instructions before use. This book contains important information on SAFETY, ASSEMBLY, OPERATION
& DISCLAIMER: DUE TO CONSTANT UPGRADATION, FEATURES AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
GP-4019BC
BRUSH CUTTER
USER MANUAL
2
SAFETY FIRST
WARNING
NOTES ON TYPES OF WARNINGS IN THE MANUAL
Instructions contained in warnings within this manual marked with a “ ” symbol concern critical
points which must be taken into consideration to prevent possible serious bodily injury and for
this reason you are requested to read all such instructions carefully and follow them without fail.
This mark indicates instructions, which must be followed in order to prevent accidents, which
could lead to serious bodily injury or death
IMPORTANCE
This mark indicates instructions, which must be followed, or it leads to mechanical failure,
breakdown, or damage.
NOTE
This mark indicates hints or directions useful in the use of the product.
CONTENTS
1. SYMBOLS ON THE MACHINE
2. PARTS LOCATION
3. ASSEMBLY
4. SAFETY PRECAUTIONS
5. FUEL
6. OPERATION
7. MAINTENANCE
3
SYMBOLS ON THE MACHINE
FOR SAFE OPERATION AND MAINTENANCE SYMBOLS ARE CARVED IN
RELIEF ON THE MACHINE.
According to these indications, please be careful not to make a mistake.
(A) THE PORT TO REFUEL THE “MIX GASOLINE”
POSITION: AIR CLEANER COVER
(B) THE DIRECTION TO CLOSE THE CHOKE
POSITION: FULE TANK CAP
(C) THE DIRECTION TO OPEN THE CHOKE
POSITION: AIRCLEANER COVER
2
For safe operation and maintenance symbols are carved in relief on the machine.
According to these indications, please be careful not to make a mistake.
(a) The port to refuel the “MIX GASOLINE”
POSITION: AIR CLEANER COVER
(b) The direction to close the choke
POSITION: FULE TANK CAP
(c) The direction to open the choke
POSITION: AIRCLEANER COVER
4
2
For safe operation and maintenance symbols are carved in relief on the machine.
According to these indications, please be careful not to make a mistake.
(a) The port to refuel the “MIX GASOLINE”
POSITION: AIR CLEANER COVER
(b) The direction to close the choke
POSITION: FULE TANK CAP
(c) The direction to open the choke
POSITION: AIRCLEANER COVER
ASSEMBLY
1 Specifications
Model GP4019BC
Handle model duble-hand
Weight <7.5kg
Size
Length 1800mm
Width 300mm
Height 260mm
Blade Nylon cutting head , 3teeth, 4teeth, 8teeth, 40 teeth
blade
Transmission method Automatic centrifugal clutch
Rate for slowing down 1.25
Edge rolling direction counterclockwise
engine
Model 1E40F
Displacement 43CC
Fuel Mixture of gas and 2-stroke oil 35:1
oil Special 2-stroke oil
Cubage for fuel box 1.25L
Way of startup or ignition Hand pulling/MTI
Carburetor Diaphragm
5
BEFORE USE THE MACHINE
(2) Connect the body with engine, keep oil tank and four screws in
the same direction.
(3) Setting for two handles
As drawing, first loosen the four screws, fix two handles from two
direction, and then screw them down again.
(4) Installment of cutting attachment guard
Please look at the picture, fix the cutting attachment guard on the tail
of gear case, and then screw down the round screw. You must not use
the machine without installing the cutting attachment guard.
(5) As picture, fix blade shelve, use wrench L to fix the lower blade
shelve, and then fix the blade, upper blade shelve and upper dirt-proof
boot in turn. Finally, screw the hexagon nut counterclockwise.
a. Read this owner’s manual carefully to understand how to
operate this unit properly.
b. This product has been designed for use in cutting weed,
brush, small tress and similar vegetation. It should never
be used for any other purpose since doing so could result
in unforeseen accidents and injuries occurring.
c. You should never use this brush cutter when under the
influence of alcohol, when suffering from drowsiness as
a result of having taken cold medicine, or at any other
time when a possibility exists that your judgment might
be impaired or that you might not be able to operate the
brush cutter properly and in a safe manner.
4
■BEFORE UES THE MACHINE
a. Read this owner’s manual carefully to understand how to operate this unit properly.
b. This product has been designed for use in cutting weed, brush, small tress and
similar vegetation. It should never be used for any other purpose since doing
so could result in unforeseen accidents and injuries occurring.
c. You should never use this brush cutter when under the influence of alcohol,
when suffering from drowsiness as a result of having taken cold medicine, or
at any other time when a possibility exists that your judgment might be impaired
or that you might not be able to operate the brush cutter properly and in a safe
manner.
d. Avoid running the engine indoors. The exhaust gases contain harmful carbon monoxide.
e. Never use your brush cutter under circumstances like those described below:
1. When the ground is slippery or when other conditions exist which might make
it not possible to maintain a steady posture while using the brush cutter.
2. At night, at times of heavy fog or at any other times when your field of vision
might be limited and it would be difficult to gain a clear view of area.
3. During rain storms, during lightning storms. At times of strong or gale –force winds, or at any other times
when weather conditions might make it unsafe to use this product.
f. When using this product for the first time. Before beginning actual work. Then handling the brush cutter from
skilled worker.
g. Lack of sleep, tiredness or physical exhaustion results in lower attention spans, and this in turn leads to
accidents and injury. Limit the amount of time over which the brush cutter is to be used continuously to
somewhere around 30-40 minutes per session, and take 10-20 minutes of rest between work sessions. Also try
to keep the total amount of work performed in a single day under 2 hours or less.
h. Be sure to keep this manual handy so that you may refer to it later whenever any questions arise.
i. Always be sure to include this manual when selling, lending or otherwise transferring the ownership of this
product.
j. Never allow children or anyone unable to fully understand the directions given in this manual to use this brush
cutter.
■WORKING GEAR AND CLOTHING
a. When using your brush cutter, you should wear proper
clothing and protective equipment as follows.
(1) Helmet
(2) Protection goggles or face protector
(3) Thick work gloves
(4) Non-slip-sole work boots
(5) Ear protectors (esp. for long-time operation)
b. And you should carry with you things as follows.
1. Attached tools and files
2. Properly reserved fuel
3. Spare blade
4. Things to notify your working area (Rope, warning signs)
6
d. Avoid running the engine indoors. The exhaust gases contain harmful carbon monoxide.
e. Never use your brush cutter under circumstances like those
described below:
1. When the ground is slippery or when other conditions
exist which might make it not possible to maintain a
steady posture while using the brush cutter.
2. At night, at times of heavy fog or at any other times
when your field of vision might be limited and it would be difficult to gain a clear
view of area.
3. During rain storms, during lightning storms. At times of strong or gale –force winds,
or at any other times when weather conditions might make it unsafe to use this
product.
f. When using this product for the first time. Before beginning actual work. Then handling the
brush cutter from skilled worker.
g. Lack of sleep, tiredness or physical exhaustion results in lower attention spans, and this
in turn leads to accidents and injury. Limit the amount of time over which the brush cutter
is to be used continuously to somewhere around 30-40 minutes per session, and take
10-20 minutes of rest between work sessions. Also try to keep the total amount of work
performed in a single day under 2 hours or less.
h. Be sure to keep this manual handy so that you may refer to it later whenever any questions
arise.
i. Always be sure to include this manual when selling, lending or
otherwise transferring the ownership of this product.
j. Never allow children or anyone unable to fully understand the
directions given in this manual to use this brush cutter.
WORKING GEAR AND CLOTHING
a. When using your brush cutter, you should wear proper
clothing and protective equipment as follows.
(1) Helmet
(2) Protection goggles or face protector
(3) Thick work gloves
4
■BEFORE UES THE MACHINE
a. Read this owner’s manual carefully to understand how to operate this unit properly.
b. This product has been designed for use in cutting weed, brush, small tress and
similar vegetation. It should never be used for any other purpose since doing
so could result in unforeseen accidents and injuries occurring.
c. You should never use this brush cutter when under the influence of alcohol,
when suffering from drowsiness as a result of having taken cold medicine, or
at any other time when a possibility exists that your judgment might be impaired
or that you might not be able to operate the brush cutter properly and in a safe
manner.
d. Avoid running the engine indoors. The exhaust gases contain harmful carbon monoxide.
e. Never use your brush cutter under circumstances like those described below:
1. When the ground is slippery or when other conditions exist which might make
it not possible to maintain a steady posture while using the brush cutter.
2. At night, at times of heavy fog or at any other times when your field of vision
might be limited and it would be difficult to gain a clear view of area.
3. During rain storms, during lightning storms. At times of strong or gale –force winds, or at any other times
when weather conditions might make it unsafe to use this product.
f. When using this product for the first time. Before beginning actual work. Then handling the brush cutter from
skilled worker.
g. Lack of sleep, tiredness or physical exhaustion results in lower attention spans, and this in turn leads to
accidents and injury. Limit the amount of time over which the brush cutter is to be used continuously to
somewhere around 30-40 minutes per session, and take 10-20 minutes of rest between work sessions. Also try
to keep the total amount of work performed in a single day under 2 hours or less.
h. Be sure to keep this manual handy so that you may refer to it later whenever any questions arise.
i. Always be sure to include this manual when selling, lending or otherwise transferring the ownership of this
product.
j. Never allow children or anyone unable to fully understand the directions given in this manual to use this brush
cutter.
■WORKING GEAR AND CLOTHING
a. When using your brush cutter, you should wear proper
clothing and protective equipment as follows.
(1) Helmet
(2) Protection goggles or face protector
(3) Thick work gloves
(4) Non-slip-sole work boots
(5) Ear protectors (esp. for long-time operation)
b. And you should carry with you things as follows.
1. Attached tools and files
2. Properly reserved fuel
3. Spare blade
4. Things to notify your working area (Rope, warning signs)
4
■BEFORE UES THE MACHINE
a. Read this owner’s manual carefully to understand how to operate this unit properly.
b. This product has been designed for use in cutting weed, brush, small tress and
similar vegetation. It should never be used for any other purpose since doing
so could result in unforeseen accidents and injuries occurring.
c. You should never use this brush cutter when under the influence of alcohol,
when suffering from drowsiness as a result of having taken cold medicine, or
at any other time when a possibility exists that your judgment might be impaired
or that you might not be able to operate the brush cutter properly and in a safe
manner.
d. Avoid running the engine indoors. The exhaust gases contain harmful carbon monoxide.
e. Never use your brush cutter under circumstances like those described below:
1. When the ground is slippery or when other conditions exist which might make
it not possible to maintain a steady posture while using the brush cutter.
2. At night, at times of heavy fog or at any other times when your field of vision
might be limited and it would be difficult to gain a clear view of area.
3. During rain storms, during lightning storms. At times of strong or gale –force winds, or at any other times
when weather conditions might make it unsafe to use this product.
f. When using this product for the first time. Before beginning actual work. Then handling the brush cutter from
skilled worker.
g. Lack of sleep, tiredness or physical exhaustion results in lower attention spans, and this in turn leads to
accidents and injury. Limit the amount of time over which the brush cutter is to be used continuously to
somewhere around 30-40 minutes per session, and take 10-20 minutes of rest between work sessions. Also try
to keep the total amount of work performed in a single day under 2 hours or less.
h. Be sure to keep this manual handy so that you may refer to it later whenever any questions arise.
i. Always be sure to include this manual when selling, lending or otherwise transferring the ownership of this
product.
j. Never allow children or anyone unable to fully understand the directions given in this manual to use this brush
cutter.
■WORKING GEAR AND CLOTHING
a. When using your brush cutter, you should wear proper
clothing and protective equipment as follows.
(1) Helmet
(2) Protection goggles or face protector
(3) Thick work gloves
(4) Non-slip-sole work boots
(5) Ear protectors (esp. for long-time operation)
b. And you should carry with you things as follows.
1. Attached tools and files
2. Properly reserved fuel
3. Spare blade
4. Things to notify your working area (Rope, warning signs)
4
■BEFORE UES THE MACHINE
a. Read this owner’s manual carefully to understand how to operate this unit properly.
b. This product has been designed for use in cutting weed, brush, small tress and
similar vegetation. It should never be used for any other purpose since doing
so could result in unforeseen accidents and injuries occurring.
c. You should never use this brush cutter when under the influence of alcohol,
when suffering from drowsiness as a result of having taken cold medicine, or
at any other time when a possibility exists that your judgment might be impaired
or that you might not be able to operate the brush cutter properly and in a safe
manner.
d. Avoid running the engine indoors. The exhaust gases contain harmful carbon monoxide.
e. Never use your brush cutter under circumstances like those described below:
1. When the ground is slippery or when other conditions exist which might make
it not possible to maintain a steady posture while using the brush cutter.
2. At night, at times of heavy fog or at any other times when your field of vision
might be limited and it would be difficult to gain a clear view of area.
3. During rain storms, during lightning storms. At times of strong or gale –force winds, or at any other times
when weather conditions might make it unsafe to use this product.
f. When using this product for the first time. Before beginning actual work. Then handling the brush cutter from
skilled worker.
g. Lack of sleep, tiredness or physical exhaustion results in lower attention spans, and this in turn leads to
accidents and injury. Limit the amount of time over which the brush cutter is to be used continuously to
somewhere around 30-40 minutes per session, and take 10-20 minutes of rest between work sessions. Also try
to keep the total amount of work performed in a single day under 2 hours or less.
h. Be sure to keep this manual handy so that you may refer to it later whenever any questions arise.
i. Always be sure to include this manual when selling, lending or otherwise transferring the ownership of this
product.
j. Never allow children or anyone unable to fully understand the directions given in this manual to use this brush
cutter.
■WORKING GEAR AND CLOTHING
a. When using your brush cutter, you should wear proper
clothing and protective equipment as follows.
(1) Helmet
(2) Protection goggles or face protector
(3) Thick work gloves
(4) Non-slip-sole work boots
(5) Ear protectors (esp. for long-time operation)
b. And you should carry with you things as follows.
1. Attached tools and files
2. Properly reserved fuel
3. Spare blade
4. Things to notify your working area (Rope, warning signs)
7
(4) Non-slip-sole work boots
(5) Ear protectors (esp. for long-time operation)
b. And you should carry with you things as follows.
1. Attached tools and files
2. Properly reserved fuel
3. Spare blade
4. Things to notify your working area (Rope, warning signs)
5. Whistle (for collaboration or emergency)
6. Hatchet or saw (for removal of obstacles)
c. Never use your brush cutter when wearing pants with loose cuffs, when wearing sandals
or when barefoot.
THINGS TO CHECK BEFORE USING YOUR BRUSH CUTTER
a. Before beginning work, look around carefully to get a feel for the shape of the land, or grass
to be trimmed, and whether or not there are any obstacles which might get in the way
while working, and remove any obstacle which can be cleared away.
b. The area within a perimeter of 15m of the person using the brush cutter should be
considered a hazardous areas into which no one should enter while the machine is in use,
and when necessary yellow warning rope, warning signs should be placed around the work
area. When work is to be performed simultaneously by two or more persons, always check
the presence and locations of others so as to maintain a distance each person sufficient to
ensure safety.
c. Make sure that there are no loose screws or bolts, fuel leakage, ruptures, dents, or any
other problems which might interfere with safe operation. Be especially careful to check
that there is nothing wrong with the blades or with joints by which the blades are attached
to the brush cutter.
d. Never use blades that bent , warped , cracked, broken or damaged in any way.
e. Check the bolt to fasten the blade and be sure the blade turns smoothly without abnormal
noise.
5
5. Whistle (for collaboration or emergency)
6. Hatchet or saw (for removal of obstacles)
c. Never use your brush cutter when wearing pants with loose cuffs,
when wearing sandals or when barefoot.
■THINGS TO CHECK BEFORE USING YOUR BRUSH CUTTER
a. Before beginning work, look around carefully to get a feel for the shape of the land, or grass to be trimmed,
and whether or not there are any obstacles which might get in the way while working, and remove any
obstacle which can be cleared away.
b. The area within a perimeter of 15m of the person using the brush cutter should be considered a hazardous
areas into which no one should enter while the machine is in use, and when necessary yellow warning rope,
warning signs should be placed around the work area. When work is to be performed simultaneously by two
or more persons, always check the presence and locations of others so as to maintain a distance each person
sufficient to ensure safety.
c. Make sure that there are no loose screws or bolts, fuel leakage, ruptures, dents, or any other problems which
might interfere with safe operation. Be especially careful to check that there is nothing wrong with the blades
or with joints by which the blades are attached to the brush cutter.
d. Never use blades that bent , warped , cracked, broken or damaged in any way.
e. Check the bolt to fasten the blade and be sure the blade turns smoothly without abnormal noise.
■NOTES ON STARTING THE ENGINE
1. Take a careful look around to make sure that no obstacles exist within
a perimeter of 15m or less around brush cutter.
2. Place the body of the brush cutter onto the ground in a flat clear area
and hold it firmly in place so as to ensure that neither the blades nor
the throttle come into contact with any obstacles when the engine starts up.
3. Place the throttle into the idling position when starting the engine.
4. After starting up the engine, if the blades continue to rotate even after the
throttle has been moved fully back, turn off the engine and check the throttle wire and other parts.
■KICKBACK SAFETY PRECARTIONS
·A dangerous reaction may occur when the spinning blade contacts a solid object in the critical area. It is
called Kick back. As a result, the operator may lose control of the unit which can cause serious or fatal
injury.
Avoid kickback, observe the safety precautions below strictly.
1. Keep the cutting blades clear of fences, , posts wires, and rocks to prevent kickback and
damage to the blades.
2. When using your brush cutter, do not grip other parts except the handles.
3. When using your brush cutter, never take your eyes off. If you need to, place the throttle into the idling
position.
■NOTES ON TRANSPORT
8
NOTES ON STARTING THE ENGINE
1. Take a careful look around to make sure that no
obstacles exist within a perimeter of 15m or less
around brush cutter.
2. Place the body of the brush cutter onto the ground
in a flat clear area and hold it firmly in place so as
to ensure that neither the blades nor the throttle
come into contact with any obstacles when the engine starts up.
3. Place the throttle into the idling position when starting the engine.
4. After starting up the engine, if the blades continue to rotate even after the throttle has
been moved fully back, turn off the engine and check the throttle wire and other parts.
KICKBACK SAFETY PRECARTIONS
A dangerous reaction may occur when the spinning blade contacts a solid object in the critical
area. It is called Kick back. As a result, the operator may lose control of the unit which can cause
serious or fatal injury.
Avoid kickback, observe the safety precautions below strictly.
1. Keep the cutting blades clear of fences, , posts wires, and rocks to prevent kickback and
damage to the blades.
2. When using your brush cutter, do not grip other parts except the handles.
3. When using your brush cutter, never take your eyes off. If you need to, place the throttle
into the idling position.
NOTES ON TRANSPORT
a. Make sure the appropriate blade cover is in place.
b. When transporting by car, fix the unit firmly using a rope. Do not transport by bicycle or
motorbike because it is dangerous.
c. Never transport the brush cutter over rough roads over long distances without first removing
all fuel from the fuel tank, as doing so might cause fuel to leak from the tank.
5
5. Whistle (for collaboration or emergency)
6. Hatchet or saw (for removal of obstacles)
c. Never use your brush cutter when wearing pants with loose cuffs,
when wearing sandals or when barefoot.
■THINGS TO CHECK BEFORE USING YOUR BRUSH CUTTER
a. Before beginning work, look around carefully to get a feel for the shape of the land, or grass to be trimmed,
and whether or not there are any obstacles which might get in the way while working, and remove any
obstacle which can be cleared away.
b. The area within a perimeter of 15m of the person using the brush cutter should be considered a hazardous
areas into which no one should enter while the machine is in use, and when necessary yellow warning rope,
warning signs should be placed around the work area. When work is to be performed simultaneously by two
or more persons, always check the presence and locations of others so as to maintain a distance each person
sufficient to ensure safety.
c. Make sure that there are no loose screws or bolts, fuel leakage, ruptures, dents, or any other problems which
might interfere with safe operation. Be especially careful to check that there is nothing wrong with the blades
or with joints by which the blades are attached to the brush cutter.
d. Never use blades that bent , warped , cracked, broken or damaged in any way.
e. Check the bolt to fasten the blade and be sure the blade turns smoothly without abnormal noise.
■NOTES ON STARTING THE ENGINE
1. Take a careful look around to make sure that no obstacles exist within
a perimeter of 15m or less around brush cutter.
2. Place the body of the brush cutter onto the ground in a flat clear area
and hold it firmly in place so as to ensure that neither the blades nor
the throttle come into contact with any obstacles when the engine starts up.
3. Place the throttle into the idling position when starting the engine.
4. After starting up the engine, if the blades continue to rotate even after the
throttle has been moved fully back, turn off the engine and check the throttle wire and other parts.
■KICKBACK SAFETY PRECARTIONS
·A dangerous reaction may occur when the spinning blade contacts a solid object in the critical area. It is
called Kick back. As a result, the operator may lose control of the unit which can cause serious or fatal
injury.
Avoid kickback, observe the safety precautions below strictly.
1. Keep the cutting blades clear of fences, , posts wires, and rocks to prevent kickback and
damage to the blades.
2. When using your brush cutter, do not grip other parts except the handles.
3. When using your brush cutter, never take your eyes off. If you need to, place the throttle into the idling
position.
■NOTES ON TRANSPORT
9
OPERATION SAFETY PRECAUTIONS
a. Grip the handles of the brush cutter firmly with both hands. If you suspend the work, place
the throttle into the idling position.
b. Always be sure to maintain a steady, even posture while working.
c. Maintain the speed of the engine at the level required to perform cutting work, and never
raise the speed of the engine above the level necessary..
d. If the grass gets caught in the blade during operation, or if you need to check the unit or
refuel the tank , always be sure to turn off the engine.
e. If the blade touches a hard object like a stone , immediately stop the engine and check if
something is wrong with the blade. If so , replace the blade by new one.
f. If someone calls out while working ,always be sure to turn off the engine before turning
around.
g. Never touch the spark plug or plug cord while the engine is in
operation. Doing so may result in being subjected to an electrical
shock.
h. Never touch the muffler, spark plug or other metallic parts of the
engine while the engine is in operation or immediately after shutting
down the engine. Doing so may result in serous burns.
i. When you finish cutting in one location and wish to continue work in
another spot, turn off the engine and turn the unit as the blade face
away from your body.
MAITENACE SAFETY PRECAUTION
a. Perform the maintenance and checking operations described in this manual at regular
interval. If any parts must be replaced or any maintenance of repair work not described in
this manual must be performed, please contact a representative from the store nearest MEI
YUAN authorized servicing dealer for assistance.
b. Under no circumstances should you ever take apart the brush cutter or after it in any way.
Doing so might result in the unit becoming unable to operate properly.
c. Always be sure to turn off the engine before performing any maintenance or checking
procedure.
d. When sharpening , removing, or reattaching the blade, be sure to wear thick , sturdy gloves
and use only proper tools and equipment to prevent injury.
10
WARNING CONSIDERING HANDLING OF FUEL
b. The engine of this product is designed to run on a mixed
fuel, which contains highly flammable gasoline. You
should never store cans of fuel or refill the fuel tank
in any place where there is a boiler, stove, wood fire,
electrical sparks, welding sparks, or any other source of
heat or fire which might ignite the fuel.
c. Smoking while operating the brush cutter of refilling its
fuel tank is extremely dangerous. Always be sure to keep
lit cigarettes away from the brush cutter at all times.
d. When refilling the tank always turn off the engine first and take a careful look around to
make sure that there are no sparks or open flames anywhere nearby before refueling.
e. If any fuel spillage occurs during refueling, us a dry rag to wipe up spills before turning the
engine back on again.
f. After refueling, screw the fuel cap back tightly onto the fuel tank and then carry the brush
cutter to a spot 3m or more away from where it was refueled before turning on the engine.
IMPORTANCE
• Never use oil for 4 cycle engine or use water cooled
2-cycle engine.
It can cause spark plug fouling, exhaust port blocking or
piston ring sticking.
• Mixedfuelswhichhavebeenleftunusedforaperiodof
one month or more may clog the carburetor or result in
the engine failing to operate properly. Put remaining fuel
into an air-tight container and keep it in the dark and cool room.
Mix a regular grade gasoline (leaded or unleaded, alcohol-free) and a quality-proven motor
oil for air cooled 2-cycle engines.
RECOMMENDED MIXING RARIO
GASOLINE OIL 25: 1
11
OPERATION
STARTING THE ENGINE
WARNING
Keep the blade clear of everything around it as it will start
moving upon the engine starts.
(1) Press carburetor cap several times with finger until oil pipe full
of fuel.
(2) Please pull the air shutter switch to the closed position. If the
engine stay in the place that just stopped, pull the switch to
open position.
(3) The setting of throttle wire and stop lead.
As drawing, connect the throttle wire of handle with one of
engine
NOTE
Be sure that the stop lead is fixed. When the gun switch
is in the original place, please gently pull the line
(movable distance is 0.5-1.0mm), otherwise rearrange
the tight degree of gun line.
(4) Place the unit on a flat, firm place. Keep the cutting
head clear of everything around it.
(5) While holding the unit firmly, pull out the starter
rope quickly.
(6) After the engine has started, allow the engine to warm up.
Pull the throttle trigger.
STOPPING THE ENGINE
(1) As drawing, release the Throttle trigger and return it to the
original condition.
8
(4) Place the unit on a flat, firm place. Keep the cutting head
clear of everything around it.
(5) While holding the unit firmly, pull out the starter rope quickly.
(6) After the engine has started, allow the engine to warm up.
Pull the throttle trigger.
■STOPPING THE ENGINE
(1) As drawing, release the Throttle trigger and return it to
the original condition.
(2) Push the engine stopping switch.
NOTE
If the engine doesn’t stop after stopping the switch, close
the choke so that engine will stop after a while.
■CUTTING WORK
WARNING
·Weather conditions and altitude may affect carburetor.
·Do not allow anyone to stay close the brush cutter while working or adjusting the carburetor.
■HOW TO USE
(1) Shoulder hang
As picture, hang it from left shoulder to right waist, then start the engine,
make sure that the gun switch is at idle speed, connect harness interface
with one of the machine, keep the blade parallel with ground, and arrange
the length of harness to a suitable condition.
(2) Working methods:
A . Sway brush cutter (from right to left)
B .For generic grass, one time cutting quantity is half of the blade diameter; for strong ruderal, one time
cutting quantity is one third of the blade diameter..
C. The place of gun switch is decided by the grass.
1. Use only as much throttle as it is needed to do the job. Excessive engine speed is unnecessary.
2. Avoid cutting branches which is too thick for the unit, as this will damage the life of drive systems.
12
(2) Push the engine stopping switch.
NOTE
If the engine doesn’t stop after stopping the switch, close the choke so that engine will stop after
a while.
CUTTING WORK
WARNING
• Weatherconditionsandaltitudemayaffectcarburetor.
• Donotallowanyonetostayclosethebrushcutterwhileworkingoradjustingthecarburetor.
HOW TO USE
(1) Shoulder hang
As picture, hang it from left shoulder to right waist,
then start the engine, make sure that the gun switch
is at idle speed, connect harness interface with one of
the machine, keep the blade parallel with ground, and
arrange the length of harness to a suitable condition.
(2) Working methods:
A. Sway brush cutter (from right to left)
B. For generic grass, one time cutting quantity is half of the blade diameter; for strong ruderal,
one time cutting quantity is one third of the blade diameter..
C. The place of gun switch is decided by the grass.
1. Use only as much throttle as it is needed to do the job. Excessive engine speed is
unnecessary.
2. Avoid cutting branches which is too thick for the unit, as this will damage the life of drive
systems.
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MAITAINENCE
WARNING
Before cleaning , inspecting, or repairing the unit, make sure that the
engine has stopped and cooled down.
BLADE
• Checkthebladeandthefastenersforlooseness,cracking,orbending
IMPORTANCE
When mounting the blade, make sure to fasten the spacer, washer and nut.
AIR CLEANER
Release the air cleaner cover and remove dusts,. In case the element is
dirty, carefully wash it with warm water containing neutral detergent, and
completely dry before refitting the element. If the element is deformed or
damaged, replace it with a new one.
IMPORTANTCE
Clogged air cleaner spoils engine performance. Also, operation with no
element or with deformed element causes irregular wear outs of the
engine mechanism.
FUEL FILTER
When the engine runs short of fuel supply, check the fuel strainer for blockage.
WAY OF COOLING AIR
This engine is air-cooled. Dust clogging between the inlet port of the
cooling air and cylinder fins will cause overheating of the engine.
Periodically check and clean the cylinder fins after removing the air
cleaner and the cylinder cover.
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SPARK PLUG
Starting failure and mis-firing are often caused by a fouled spark plug.
Periodically clean the spark plug, and replace with a new one required.
IMPORTANCE
When dismounting the plug cap, be careful not to take off the seal
from the seal from the plug cap. Operating the engine without seal
may cause overheat of the engine.
IMPORTANCE
When setting up the spark plug, screw it by your fingers at first, then
tightening by using special plug wrench . Over tightening will damage
the cylinder and piston,
Tightening Torque
15.3-22.4N.m(150~220kgf-cm)
Type of plug Spark Gap
TORCH L7RTC 0.6~0.7mm
GEARCASE
Supply butter at every 25 hours’ use
As drawing, first take out the lubrication fitting, take down the lower blade
shelve, then pour in butter from the hole until the old butter comes out. After
that, close the hole with the lubrication fitting and install the lower blade
shelve.
ADJUDTING CARBURETTOR
The carburetor has been adjusted at the factory. Should your unit need readjustment due to the
changes in altitude or operating conditions, please let your skilled dealer make the adjustment. A
wrong adjustment may cause damage to your unit
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1. Idle speed fuel adjusting screw
Screw it down in veer then release it just one circuit which is the standard
Right adjustment: quantity decrease
Left adjustment: quantity increase
2. High-speed fuel adjusting screw
Right adjustment: quantity decrease
Left adjustment: quantity increase
3. Idle speed adjusting screw
Right adjustment: speed increase
Left adjustment: speed decrease
MUFFLER
AFTER 100 HOURS’ USE
1. Remove the muffler, insert a screw driver into the
vent, and wipe away any carbon buildup. Wipe away
any carbon buildup on the muffler exhaust vent at
the same time.
(1) screw driver
(2) muffler
2. Tighten all screws, bolts and fittings.
3. Check to see if any oil or grease has worked its way between the clutch lining and drum. If
so, please wipe it away using oil-free and lead-free gasoline
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Check-up before or after working
Checking items Manage ways
1 Blades A. if the screw loosen A. screw down
B. if the blades are bad or
abrasion
B. replace them
C. if the blades are attrited C. rub the blades or change
them
2 Safety cover A. if the screw loosen A. screw down
B. if it is bad B. replace them
3 Handle A. if the screw loosen C. screw down
B. if it is bad D. replace them
4 Gun switch Not slip Amend it or change it
5 Gun line A. the movable distance is not
exact
A. arrange
B. not slip B. amend or change
6 Engine
connector
If it is loose Screw or change
7 Fuel box B. connector is loosen A. screw them down
C. oil pipe is broken B. replace
D. sealed ring of oil box cover is C. replace
broken
8 Exhaust pipe If it is loosen C. screw them down
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MAITANENCE BEFORE STORAGE
IMPORTANCE
Use a dry rag to wipe any fuel which has been spilled onto
the unit.
Meanwhile, tighten the cover of the container.
1. Extract fuel from the tank and run the engine until it
stops naturally.
2. Remove the spark plug and put in 1-2cc of 2-cycle oil
in the engine . Pull the starter rope 2-3 times, set the
plug back and stop it at the contraction position.
3. Apply anti-rust oil to metal parts such as the throttle wire, etc. Put the cover on the blade
and keep it indoor avoiding dampness.
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TECHNICAL PARAMETEERS
Model GP-4019BC
Type Brush Cutter
Clutch rotate speed (r/min) 3200-3400
Drive transfer style automatic centrifugation
Rotating direct of blade anticlockwise
Transmission ratio 1.25
noise dB(A)
idling dB(A) ≤80
high speed racing dB(A) ≤102
Engine
Model 1E40F-5A
Type 1-cylinder, 2-stroke ,air- cooled
Displacement (ml) 42.7
Rated power (kw) 1.25
Rated speed (r/min) 8500
Start system recoil
Ignition system type non-contact transistorized
Fuel 93# gasoline and two stroke special machine oil mixture 25:1
Machine oil two stroke special machine oil
Fuel tank capacity(L) 1.25
Fuel oil consumption ratio
(g/kw.h) ≤690
Blades nylon cutting rope head , 2 teeth ,.3 teeth, 4teeth,8teeth,
40teeth,60 teeth, 80teeth
Max. cutter width(mm) 40
G.W.(kg) 9.5
MEAS (cm)
31.5*24*35
160*15*15
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ACCESSORIES
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SPARE PARTS DIAGRAM OF GP-4019BC BRUSH CUTTER
