Manufactured under license of
Daewoo International Corporation, Korea
www.daewoopowerproducts.com
USER'S MANUAL
DBC
430AV /
DBC
520AV
Gasoline Brush Cutter
1. SAFETY
1.1. General safety notes.
1.1.1. The operator of the machine is responsible for, and has a duty of care in making sure that the
machine is operated safely and in accordance with the instructions in this user manual. Keep the
manual safe and pass it on if the machine is loaned or sold to another user.
1.1.2. Please note the following safety points.
1.1.2.1. The machine should never be left it in a condition which would allow an untrained or unau-
thorised person/s to operate this machine.
1.1.2.1.1. All due care and diligence should be taken by the operator for the safety of, and with regard
to, those around whilst using the machine.
1.1.2.1.2. Some or all of the following - warning signs, symbols and/or PPE pictograms may appear
throughout this manual. You MUST adhere to their warning/s. Failure to do so may result in personal
injury to yourself or those around you.
Indicates a hazard, which, if not avoided, could result in serious injury or death.
Indicates a hazard, which, if not avoided, could result in serious injury.
Indicates a hazard which, if not avoided, might result in minor or moderate injury.
Indicates a situation that could easily result in equipment damage.
READ and keep the manual safe and pass it on if the machine is loaned or sold to another user. You
MUST fully read instructions to make sure you use and operate machine safely. Appropriate Perso-
nal Protective Equipment (PPE), MUST be worn at all times when machine is in use or being repai-
red.
1.2. Carbon monoxide (where applicable).
1.2.1. Carbon monoxide is a colourless and odourless gas. Inhaling this gas can cause death as well
as serious long term health problems such as brain damage.
1.2.2. The symptoms of carbon monoxide poisoning can include but are not limited to the following;
Headaches, dizziness, nausea, breathlessness, collapsing or loss of consciousness.
1.2.2.1. Carbon monoxide poisoning symptoms are similar to flu, food poisoning, viral infections and
simply tiredness. It is quite common for people to mistake this very dangerous poisoning for some-
thing else.
1.2.2.2. To avoid carbon monoxide poisoning DO NOT use Petrol/Diesel- powered equipment inside
any of the following; Home, garage, tent, camper van, mobile home, caravan or boat. This list is not
exhaustive and if you are in any doubt contact your dealer.
1.2.3. If you think you have or someone around you has been affected by carbon monoxide poiso-
ning;
1.2.3.1. Get them fresh air immediately, by leaving the affected area or by opening doors and
windows. If safe and practical to do so make sure that the machine is turned off. DO NOT enter a
room you suspect of having carbon monoxide present – instead call the emergency services.
1.2.3.2. Contact a doctor immediately or go to hospital - let them know that you suspect carbon
monoxide poisoning.
1.2.4 DO NOT use in an enclosed area or a moving vehicle.
1.3. General fuel safety (where applicable).
ALL FUELS ARE FLAMMABLE
1.3.1. Fire hazard - keep fuel away from all sources of ignition for example heaters, lamps, sparks
from grinding or welding.
1.3.2. DO NOT carry out hot work on tanks that have contained fuel it is extremely
dangerous.
1.3.3. ALWAYS keep work area clean and tidy.
1.3.4. ALWAYS clean up all spills promptly using correct methods i.e. absorbent granules and a
lidded bin.
1.3.5. ALWAYS dispose of waste fuels correctly.
1.4. Fuelling/De-fuelling (where applicable).
ALL FUELS ARE FLAMMABLE
1.4.1. ALWAYS fuel and defuel in a wellventilated area outside of buildings.
1.4.2. ALWAYS wear correct, suitable and fit for purpose Personal Protective Equipment (PPE),
suggested items are but not limited to safety gloves and overalls.
1.4.3. When fuelling/de-fuelling ALWAYS avoid inhaling fumes
1.4.4. When de-fuelling ALWAYS use a propriety fuel retriever.
1.4.5. ALWAYS carry fuel in the correct and clearly marked container.
1.5. Electrical safety (where applicable).
1.5.1. Electricity can kill - NEVER work on LIVE/ENERGISED equipment.
1.5.2. Prior to carrying out any maintenance work you MUST Identify electrical isolation methods
and isolate all electrical supplies,
1.5.3. Prior to use and with all electrical supplies isolated You MUST check all electrical cables,
plugs and connections for the following;
1.5.3.1. Are intact and have no signs of damage, to include but not limited to bare wires, chaffing,
cuts and loose wiring.
1.5.3.2. If there are any signs of damage, the damaged item MUST be taken out of service until the
damage has been repaired by an electrically competent person.
1.5.3.3. All trailing cables should be routed so as not to cause any kind of trip hazard.
1.5.3.4. NEVER work on or near electricity with wet hands, wet clothing, and wet gloves.
1.6. Batteries (where present).
1.6.1. Batteries present a risk if they become damaged by the possible leaking of electrolyte. This
electrolyte is an acid and can cause serious burn injuries. Care should be taken when working on or
near them. NOTE the
electrolyte may be in liquid or gel form.
1.6.2. Should you come into contact with electrolyte you should;
1.6.2.1. Remove all clothing contaminated with electrolyte. If you cannot remove then saturate in
water.
1.6.2.2. Get medical assistance as soon as possible. You must advise the medical staff of the type
acid.
1.6.2.2.1. Lead/acid battery = dilute sulphuric acid
1.6.2.2.2. Nickel/cadmium = potassium hydroxide alkali electrolyte.
1.6.2.3. Use fresh running water to wash off excess electrolyte, continue this until medical assistan-
ce arrives. Make sure that you do not wash the electrolyte to another part of the face or body.
1.6.2.4. If electrolyte comes into contact with Eyes the electrolyte needs to be immediately washed
away with large amounts of water. Make sure that you do not wash the electrolyte to another part of
the face or body.
1.6.3. Gasses from charging batteries are highly flammable and great care should be taken to
charge in well ventilated areas.
1.6.4. There is an explosion risk if the battery terminals are short circuited, when connecting/-
dis-connecting ALWAYS exercise great care so that the terminals or battery leads are NOT allowed
to touch and cause a spark. ALWAYS use suitable insulated tools.
1.7. Vibrations (where applicable).
1.7.1. Prolonged use of hand held (operated) machines will cause the user to feel the effects of/from
vibrations. These vibrations can lead to white finger (Raynaud's phenomenon) or carpal tunnel
syndrome. This condition reduces the ability of the hand to feel and regulate temperature, causing
numbness and heat sensations and may cause nerve damage and circulatory tissue death.
1.7.2. Not all factors that lead to white finger disease are known, but cold weather, smoking and
other diseases that affect blood vessels and blood circulation as well as large and longlasting
impact of shocks are considered factors in the formation of white finger. Note the following to
reduce the risk the white finger and carpal tunnel syndrome:
1.7.2.1. Wear gloves and keep your hands warm
1.7.2.2. Take regular breaks
1.7.3. All of the above precautions may help reduce the risk of white finger disease but not rule out
carpal tunnel syndrome. Long-term and regular users are therefore recommended to observe the
condition of your hands and fingers. Seek medical attention immediately if any of the above sym-
toms should occur.
1.8. Noise (where applicable).
1.8.1. The operating noise of the machine can damage your hearing. Wear hearing protection such
as earplugs or ear defenders to protect your hearing. Long- term and regular users are advised to
have hearing checked regularly. Be especially vigilant and cautious when wearing hearing protec-
tion because your ability to hear alarm warnings will be reduced.
1.8.2. Noise emissions for this equipment is unavoidable. Carry out noisy work at approved times
and for certain periods. Limit the working time to a minimum. For your personal protection and
protection of people working nearby it is also advisable for them to wear hearing protection.
1.8.3. See CERTIFICATE of CONFORMITY section for Outdoor Noise declaration of conformity.
1.9. Additional safety labels. Keep all children, bystanders and helpers 15 meters from the machine.
Warning against flying objects wear helmet, goggles and ear protection.
Warning: Danger from hot components, especially exhaust -
Keep clear of combustible materials.
1.10. Additional safety instructions.
1.10.1. Spectators should be told how to correctly attract the operator’s attention, otherwise it could
create an unsafe situation.
1.10.2. Never touch either the nylon cutting head or the metal cutting blade whilst the machine is in
use – You MUST allow the machine to come to a stop and to remove the HT lead before carrying out
any maintenance.
1.10.3. During and after use the engine and exhaust will be very HOT you must keep all your all parts
of your body and clothing including all combustible materials clear of the engine and exhaust.
1.10.4. DO NOT use the machine during or after rain, snow or sleet. The floor will become slippery.
DO NOT use the machine on a slope or uneven ground or if there is the chance of slipping or losing
the stability.
1.10.5. If you trip or fall whilst machine is in use you MUST immediately release the throttle, and turn
off the ignition switch.
1.10.6. If you hit any obstacles you must stop the machine and remove the HT lead so that you can
inspect the machine. IF the machine is damaged in any way you MUST get it repaired before restar-
ting work.
1.10.7. DO NOT use the machine with a blunt, cracked or damaged cutter blade.
1.10.8. When using the blade cutter there is a danger of kickback. Kickback is a reaction that can
occur when the rotating cutting blade strikes an object which cannot be cut. This contact causes
the cutting blade to stop for an instant and then suddenly repel from the object taken with accelera-
ted force. This reaction can be violent enough that the operator momentary loses control of the
machine. A kickback can occur without warning when the cutter encounters an unseen obstacle
when the blade is running. This is more likely in areas where it is difficult to properly check the
material/area to be cut. For easy and safe cutting, cut the weeds/brush from right to your left.
1.10.9. If any trimmed materials get tangled in the nylon cord or cutting blade you MUST stop the
machine and remove the HT lead. Onley then can you clear any blockages.
1.10.10.
NEVER use the machine with a saw blade attachment it is STRICTLY FORBIDDEN.
1.10.11. DO not use the brush cutter for trimming trees.
1.10.12. DO NOT wear rings and jewelry or loose, dangling clothing that could get caught in the
machine. DO NOT wear footwear with unprotected toes and DO NOT work barefoot or without leg
protection. In certain situations, you have to wear head protection.
2. QUICK START
2.1. This guide is meant to serve as a quick reference for operating your DAEWOO brush cutter It is
for convenience and the user should read the safety section first.
OUTDOOR USE ONLY.
This brush-cutter produces carbon monoxide - a poisonous, colourless & odourless gas that can
cause death or serious injury. Petrol is highly flammable, always handle with extreme care and in a
well ventilated area.
Always remove HT lead from spark plug when checking machine or changing parts.
2.2. This product includes: Main unit, Operators handle, Trimmer head, Bump feed nylon trimmer
head, 3 tooth steel blade, Full harness, Gloves,Goggles, Tool kit, 2-Stroke oil mixing bottle, User
manual.
2.3. At this point, check that you have all of the included items listed above.
2.4. Handle assembly. Remove the nut and bolt from the trigger with the supplied Allen key. Place
the trigger onto the handle. Align the holes on trigger with hole on the handle pole. Insert the nut
and bolt and tighten. Lift the White cover unscrew and remove the hand-wheel.
Push back the hinged cover, place the handle into the cradle, push hinge back over the handle-bar
and lock into place using the hand-wheel. Push the White cover back into position.
2.5. Trimmer blade assembly.
Place the one bolts(6x25mm) through the guard from the top.
2.6. Guard assembly.
Remove in this order - lock-nut, stainless steel cover, spacer and drive spacer.
Place trimmer guard over threaded drive, align the three holes and secure in place using the 3 Allen
bolts. Tighten in place using the Allen key.
2.7. Grass trimmer assembly. (Bump trimmer head).
Place the drive spacer over the threaded drive. Then attach the trimmer head onto the threaded
drive – tighten in an anti-clockwise direction.
