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6

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.

DANGER

!

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.

Summary of Contents for DBC430AV

Page 1: ...Manufactured under license of Daewoo International Corporation Korea www daewoopowerproducts com USER S MANUAL DBC430AV DBC520AV Gasoline Brush Cutter ...

Page 2: ... 2 2 QUICK START 7 3 STARTING PROCEDURE 11 4 STOPPING PROCEDURE 13 5 USING THE MACHINE 14 6 MAINTENANCE 16 7 TROUBLESHOOTING 20 8 SPECIFICATIONS 21 9 PARTS LOCATION 21 10 RECYCLING PRODUCTS DISPOSAL 22 WARRANTY 23 1 ...

Page 3: ...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 whi...

Page 4: ...u 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 emergenc...

Page 5: ... 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 ...

Page 6: ...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 fact...

Page 7: ... 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 t...

Page 8: ...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...

Page 9: ... using the Allen key lock the shaft in place once shaft is locked you can tighten the trimmer head 2 8 Cutting blade assembly Instruction to suit either 3 or 5 bladed cutter Place the drive spacer over the threaded drive N B Raised area to be toward the thread ...

Page 10: ...e toward the thread N B There should be now writing showing Once blade is in place put the stainless steel cover over the spacer put lock nut onto threaded shaft and loosely tighten anti clockwise direction Use the box spanner to over the lock nut and tighten use the Allen key to lock the shaft ...

Page 11: ...t fill use the ratio of 25 1 thereafter use a ratio of 40 1 2 13 Adding fuel Unscrew the fuel tank cap and carefully add a fuel 2 stroke oil mixture as in section 2 12 DO NOT overfill and allow a 25 mm gap at the top of the tank Once full replace and correctly tighten the fuel cap DO NOT use straight unleaded petrol ...

Page 12: ...1 3 STARTING PROCEDURE Fill with fuel oil mixture make sure the fuel cap is secure Set the ignition switch on the handle to the ON position Pump the primer bulb several times until fuel shows in the bulb ...

Page 13: ...ever at the OFF position Place one hand on the machine and using the other hand pull the recoil until you feel a resistance then pull briskly Repeat until machine starts When the machine starts move the choke to the OFF position DO NOT let go of the recoil handle instead allow the recoil cord and handle return slowly ...

Page 14: ... the throttle lever 4 STOPPING PROCEDURE 4 1 Before stopping the machine allow the engine to cool down for a few minutes by allowing it to run without throttle 4 2 You MUST allow the cutting head to come to a full stop before carrying out any maintenance on the machine To STOP the machine release the throttle lever and move the ignition switch to the OFF position If not already in OFF position mov...

Page 15: ...njury to the user and damage to the machine 5 3 Wearing the shoulder harness When you use this machine always wear the provided harness Make sure that the machine is securely hooked onto the strap If you do not you will not be able to control the machine safely This may result in injury to yourself or other people Never use a harness with any type of defect especially with a defective quick releas...

Page 16: ... trimming head is only to be used for cutting grass 5 4 8 Metal blade head is only to be used for brush only 5 4 9 To prevent overheating NEVER over cut instead cut off smaller lengths of grass or brush You MUST also remove any tangled materials You MUST stop the machine and remove the HT lead before carrying out this task 5 4 10 When trimming around trees trim slowly making sure that the nylon co...

Page 17: ... wear appropriate Personal Protective Equipment PPE Suggested PPE Sturdy footwear work gloves especially when working near blade long trousers and hearing protection WARNING CAUTION Component Each use Every 3 mths or 15 hours Every 6 mths or 50 hours Every 12 mths or 100 hours Every 24 mths or 300 hours Air filter Check Clean a Sparkplug Check Adjust Change Sparkplug electrode Clean Coolingfins Chec...

Page 18: ... complete the following steps after the engine has been turned off and allowed to cool down 6 2 1 To make sure the engine runs correctly a spark plug gap of 0 6 0 7 mm must be maintained and the spark plug must be free of carbon deposits 6 2 2 Undo retaining screw 1 and lift spark plug cover 2 clear 6 2 3 Disconnect the spark plug cap 3 carefully Do not pull on the HT lead instead pull on the spar...

Page 19: ...en sharpening the blade you MUST wear safety gloves 6 3 1 Remove the cutting blade 2 from the shield 1 6 3 2 Put cutting blade securely into a vice 6 3 3 Sharpen the blade with a suitable flat file 6 3 4 Please make sure that you maintain the angle of cutting Maintain the original cutting angle ...

Page 20: ...n idle until engine stops alone This allows the fuel to be removed from the carburetor 6 4 6 Allow engine to cool down about 5 minutes 6 4 7 Use a spark plug wrench remove the spark plug 6 4 8 Pour 1 teaspoon of clean 2 cycle oil into the combustion chamber Slowly pull the starter rope several times to coat internal components Replace the spark plug 6 4 9 Store the machine in a cool dry place away...

Page 21: ... ignition Possible corrective actions 1 Replace or adjust NORMALFUELSUPPLYAND R PARK Possible causes 1 Poor contact between spark plug cap and spark plug Possible corrective actions 1 Check or exchange MOTOR DOES NOT COME UP TO SPEED Possible causes 1 Choke is in cold start position exhaust system does not clog air supply worn Movable elements spark weak valve clearance to big sooty cylinder head ...

Page 22: ...lade type 3 T Metal blade Thicknees 1 6 mm Cutting diame ter 255 mm Nylon head cutting diameter 460 mm 9 PARTS LOCATION DBC430AV Engine model 1E40F 5 Engine type Air cooled two stroke single cylinder Displacement 43 cc Power 1 25 kW 1 7 hp Idling speed 3000 200 rpm Two cycle oil gasoline mixing ratio 1 40 Carburetor Diaphragm type Shaft length 1500 mm Shaft diameter 28 mm Blade type 3 T metal blad...

Page 23: ...cal authority or recycling centre 11 5 Unwanted packaging materials should be sorted and taken to a recycling centre so it can be disposed of in a manner which is compatible with the environment 11 6 The following symbol means that you should Reduce Reuse Recycle 11 7 For further information about disposal please contact your Local Authority Amenity Site For further information please contact your...

Page 24: ...www daewoopowerproducts com Manufactured under license of Daewoo International Corporation Korea ...

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