Manufactured under license of
Daewoo International Corporation
, Korea
www.daewoopowerproducts.com
USER'S MANUAL
DSC
3840
Li
Lithium Scarifier and Raker
1. SYMBOLS MARKED ON THE PRODUCT
Read this instruction book carefully before using the lawn mower and keep it
in a safe place for future reference.
Keep bystanders away.
Beware of sharp blades. Blades continue to rotate after the motor is switched off.
Switch off isolator key before adjusting, cleaning and before leaving the product
unattended for any period.
The charger is intended for indoor use only.
Wear hearing and eye protection.
The machine is protected against ingress of water drop from vertical direction.
Do not expose to rain or damp conditions.
Do not operate on inclines greater than 15°.Mow across the face of slopes,
never up and down.
Electric shock hazard.
Wait until all machine components have completely stopped before touching them.
CE
Marking
The product meets demands and regulations set by the European Community.
WEEE
Marking
CAUTION!
Unusable power tools do not belong with domestic waste.
They must be taken to a communal collecting point for environmentally friendly
disposal in accordance with local regulations.
Accumulator Disposal:
Old Accumulators and batteries must not be added to household waste, but should be disposed of
in accordance with the applicable legislation.
Take unusable rechargeable batteries to the dealer’s or community’s battery collection point.
Disposing of the packaging:
The packaging is made of cardboard and separately labeled foil which is also recyclable.
Take these materials to a recycling centre.
Disposing of the packaging:
The packaging is made of cardboard and separately labeled foil which is also recyclable.
- Take these materials to a recycling centre.
Battery packs/batteries:
Li-lon
Do not dispose of batteries into household waste, water or fire. Battery packs/
batteries must be collected, recycled or disposed of in an environmentally
-friendly
way.
Only for EC countries:
Defective or dead batteries must be recycled according to the directive 2006/66/EC.
Noise level marking for model DLM4340Li
Your tool noise is not more than XXdB.
SAFETY ALERT SYMBOL:
Indicates caution or warning may be used in conjunction with
other symbols or pictures.
2. GENERAL SAFETY RULES
2.1 General safety regulations for this electrical tool
•
The equipment is never allowed to be used by children, persons with reduced physical, sensory or
mental capacities or insufficient experience and knowledge, or persons who are not familiar with the
instructions.
•
Children should be supervised so that they do not play with the equipment. Children are not
allowed to carry out the cleaning or maintenance.
2.2 Safety information for scarifiers and aerators
•
Check the equipment for damage each time before use. The equipment must never be used if
damaged and must be placed out of service until completion of repairs by a specialist/our customer
service.
•
If the equipment vibrates excessively during operation, switch it off immediately and pull the on-off
button. Tilt the equipment and examine the scarifier and aerator roller for anything which may have
caused imbalance and remove it if necessary-be sure to wear gloves for this work to protect your-
self against cuts. If this is not the cause -have the equipment repaired by our customer service.
•
Or examine the equipment for damage and carry out any necessary repairs to damaged parts. And
examine the equipment for loose parts and tighten them well.
•
Both hands must be on the handle when you start the equipment, and the equipment must be
stood on the ground and must not be tilted.
•
Safety components must be checked each time before use and must be replaced by our customer
service if damaged.
WARNING:
Do not touch the teeth before the equipment is disconnected from the power supply and the teeth
have reached a complete standstill.
Always disconnect from the power supply (e.g. pull out the on-off button).
•
Whenever you leave the equipment unattended.
•
Before unblocking a blocked tool.
•
Before checking, cleaning or carrying out any other work on the equipment.
•
If a foreign body has been struck; whenever the equipment vibrates abnormally (examine immedia-
tely)
2.3 Starting up safely for scarifiers and aerators
2.3.1 Instruction
•
Read the instructions carefully. Familiarize yourself with the operator controls and proper use of
the equipment.
•
Never allow children or anyone who is not familiar with these instructions to use the equipment.
Local regulations may set minimum age requirements for the user.
•
It should be noted that the user of the equipment is personally responsible for accidents or
hazards involving other persons or their property.
2.3.2 Preparation
•
Always wear ear protection and protective goggles when using the equipment, as long as the
equipment is in operation.
•
Always wear sturdy, non-slip footwear and long trousers when using the equipment. Never use the
equipment barefoot or in sandals. Avoid wearing loosely fitting clothes or clothing with hanging
belts or ties.
•
Carefully check the ground on which the equipment will be used and remove all objects that could
be caught up by the equipment and violently flung out.
•
Only use the equipment in the recommended position and only on a firm, level surface.
•
Do not use the equipment on paved or graveled surfaces where material that could be catapulted
out could cause injuries.
•
Before switching on the equipment, always check all screws ,nuts bolts and other fastenings to
ensure that they are secure and that all safety devices and protective grilles are in position . worn or
damaged stickers must be replaced.
•
Never use the equipment in the direct vicinity of persons – especially children – or animals.
2.3.3 Operation
•
Work only in broad daylight or in well-lit conditions.
•
Do not use the equipment on wet grass.
•
Always maintain good footing, especially on inclines.
•
Walk, do not run.
•
Always guide the equipment across slopes, i.e. never straight up or straight down.
•
Be particularly careful when you change direction on a slope.
•
Do not scarify or aerate on overly steep inclines.
•
Be particularly careful when you turn the equipment around or pull it toward yourself.
•
Stop the teeth whenever the mower has to be tilted for transporting over areas other than lawns
and whenever it has to be moved from or to the area you want to work on.
•
Never use the equipment if the safety devices or safety grilles are damaged, or without the atta-
ched safety devices, e.g. deflectors and/or catch baskets.
•
Start the motor with caution in accordance with the operating instructions and ensure that your
feet are far enough away from the teeth.
•
Do not tilt the equipment when you start the motor unless the equipment must be raised off of the
ground a little in order to start it. ln this case, tilt it as little as absolutely necessary and only raise
the side opposite to that of the user. Always make sure that both hands are in the working position
before the equipment returns to the ground.
•
Never transport the equipment while the drive is running.
•
Never move your hands or feet toward or under any rotating parts. Keep clear of the chute opening
at all times.
•
Switch off the motor and pull the on-off button. Make sure that all moving parts have reached a
complete standstill:
1) whenever you leave the equipment unattended;
2) before you remove any blockages or clogs in the chute;
3) before carrying out any checks, cleaning or other work on the equipment;
4) after the equipment strikes a foreign body. Inspect the equipment for damage and carry out any
necessary instructions repairs before you restart and use the equipment;
if the equipment begins to experience exceptionally strong;
vibrations, switch it off immediately and check it;
5) search for damage;
6) repair the damaged parts as required;
7) examine the equipment for loose parts and tighten them well.
Never operate the equipment in poor weather conditions, especially if there is a risk of lightning.
Avoid abnormal working postures and always keep your balance so that you maintain a steady
foothold on inclines at all times.
WARNING:
Do not touch any dangerous moving parts before you have pulled out the safety
plug and the dangerous moving parts have come to a complete standstill.
WARNING:
Risk of injury from dangerous moving parts!
2.3.4 Maintenance and storage
•
Make sure that all nuts, bolts and screws are tightened securely and that the equipment is in a safe
working condition.
•
Routinely check the catch basket for signs of wear and impaired functionality.
•
For your own safety, replace Worn or damaged parts without delay.
•
Remember that on equipments with teeth units, the movement of one teeth unit may result in the
other teeth units starting to rotate.
•
While you are adjusting the equipment, take care not to jam your fingers between moving teeth and
stationary parts of the equipment.
•
Allow the motor to cool before you put the equipment away for any extended period of time.
•
While you are carrying out maintenance work on the teeth, it is important to remember that the
teeth can still be moved even if the drive has been switched off.
•
For your own safety, replace worn or damaged parts without delay. Use only original spare parts
and original accessories.
•
If the equipment is stopped for maintenance, inspection or storage purposes or in order to replace
an accessory, you must switchoff the drive, pull the safety plug from the equipment and make sure
that all moving parts have come to a complete standstill. Allow the equipment to cool before carr-
ying out any inspections, adjustment, etc. Treat the equipment with care and keep
it clean.
•
Keep the equipment where it is out of children's reach.
Service
Have your power tool repaired only by trained personnel using only genuine spare parts. This will
ensure that your power tool remains safe to use.
Careful handllng and use of cordless equipment
•
Ensure that the equipment is switched off before you insert the battery. Inserting a battery into an
electric tool that is switched on can cause accidents.
•
Only charge the batteries in chargers that are recommended by the manufacturer. A charger that ís
designed for a certain type of batteries may pose a fire risk if it is used with other types of batteries.
•
Use only the correct batteries in the electric tools.The use of other batteries may result in injuries
and a fire risk.
•
Keep unused batteries away from paper clips, coins, keys, nails, screws and other metallic objects
that could cause a short circuit between the contacts. A short circuit between the battery contacts
may cause burns or a fire.
In case of incorrect use, fluid may escape from the battery. Avoid contact with it. If you touch it by
mistake, rinse the affected area with water. lf you get the fluid in your eyes, also seek medical advi-
ce.Leaking battery fluid can .cause skin irritation or burns.
Additional safety instructions
We pay a great deal of attention to the design of every battery pack to ensure that we supply you
with batteries which feature maximum power density, durability and safety. The battery cells have a
wide range of safety devices. Each individual cell is initially formatted and its electrical characteris-
tic curves are recorded. These data are then used exclusively to be able to assemble the best
possible battery packs. Despite all the safety precautions, caution must always be exercised when
handling batteries. The following points must be obeyed at all times to ensure safe use. Safe use
can only be guaranteed if undamaged cells are used. Incorrect handling can cause cell damage.
Important: Analyses confirm that incorrect use and poor care are the main causes of the damage
caused by high performance batteries.
Safety Advice for Rechargeable Battery and Charger
Use only the battery provided with the lawn mower and the provided charger.
Protect battery and battery charger from humidity.
Do not operate the battery charger outdoors.
When it is not in use or before cleaning and servicing, disconnect the battery charger from the
power supply.
Take special care of the battery.
Avoid dropping it onto any hard surface and do not subject it to pressure or any other form of
mechanical stress.
Keep the battery away from extreme heat and cold.
Do not open or attempt to repair the battery or the battery charger. If any parts are defective, have
them repaired by a qualified technician or send them to our service department for repair.
Only charge the battery at an ambient (surrounding air) temperature between 0ºC and +50ºC.
A charged battery can be used to power the machine under ambient temperature conditions
between -20ºC and +70ºC.
When not in use, store the battery in a dry place between 10ºC and 30ºC.
The battery should be recharged when it fails to produce sufficient power on jobs which were easily
done previously. DO NOT CONTINUE using product with its battery in a depleted condition.
The battery is not fully charged at the factory. Before attempting to use it, it must be fully charged
firstly.
IMPORTANT! DANGER!
Never short-circuit the battery or expose it to moisture. Do not store it together with any metal parts
which could short-circuit the contacts. The battery could overheat, start burning or explode.
If any person comes into contact with acid or similar internal fluids or substances contained in the
battery, wash off these substances immediately with plenty of water. If these substances make
contact with the eyes, rinse with plenty of water and visit a doctor immediately.
WARNING:
Do not open the battery pack to get the battery out by yourself.
Do not place the rechargeable battery into fire or water. It can explode. The Rechargeable Battery
should not be discarded to domestic refuse, regardless of whether used or unused. You should
return it to a local battery collection point in accordance with Battery Regulations or return them to
us suitably marked “Used Battery”.
3. GENERAL IDENTIFICATION
1. Upper handle
2. On-off button
3. Switch box
4. Locking Lever
5. Grass catcher
6. Cable clamp
7. Depth adjusting knob
8. Battery door
9. Rear cover
10. Lower handle
11.Middle handle
12. LED display
13. Brake control handle
4. TECHNICAL DATA
Model DSC3840Li
Power: 40v Lithium-Ion battery
No load speed: 3200 rpm
Motor power: Brushless
Deck material: Plastic
Cutting width: 380 mm
Drive type: Hand push
Cutting height: -10 ~ +5 mm, Stepless
Grass bag capacity: 45 L
Front / Rear wheel size: 7" / 6"
Includes: Scarifier blade, raker and grass catcher
5. ASSEMBLY
5.1 Assemble the handle
1. Insert the lower handle into the brackets. (Fig. 2A)
2. Fix the lower handle into the unit body with locking levers, bolts and washers.(Fig. 2B)
3. Connect the middle handle and the lower handle with locking levers, bolts and washers.(Fig. 2C)
4. Connect the upper handle and the middle handle with locking levers, bolts and washers.(Fig. 2D)
5. Attach the cable clamp to the position shown and then attach the cable. (Fig. 2E)
5.2 Assemble the optional grass catcher
1. Push both metal frame parts into each other .(Fig. 2G)
2. Pull the cloth bag over the metal frame .(Fig. 2H)
3. Pull the rubber clips over the metal frame. (Fig. 2I)
To fit: Raise the rear cover and hitch the grass catcher on rear of mower. (Fig. 2J/ Fig. 2K/ Fig. 2L).
To remove: Grasp and lift the rear cover, remove grass catcher.
WARNING:
Before you ever hook the grass catcher to the scarifier you must ensure that the
motor is switched off and the cutting unit is not rotating.
5.3 Assemble the battery
1. Make sure the On-off button is pulled out. (Fig. 2M)
2. Open the battery door. (Fig. 2N)
3. Insert the battery pack into battery holder. (Fig. 2O)
4. Make sure the latch on bottom of battery pack snaps in place and that battery pack is fully
seated.
5. Close the battery door. (Fig. 2P)
5.4 Remove the battery
1. Open the battery door.
2. Press and hold the battery latch button at the bottom of the battery pack. (Fig. 2Q)
3. Remove battery pack from the product. (Fig. 2R)
5.5 Adjustment for an appropriate height
1. Pull the locking lever opening;
2. Rotating the upper handle centered of the angle adjusting gear for adjusted an appropriate angle
into the scope 0º to 18º as the Fig. 2S shown;
3. Push the locking lever closed to connect the lower handle and the unit body.
6. ADJUSTING THE STEPLESS WORKING DEPTH
The stepless working depth is set with depth adjusting knob, the depth can be adjusted from -10mm
to +5 mm.(Fig. 3A/ Fig. 3B)
WARNING:
Make this adjustment only when the blade is stopped.
7. OPERATING INSTRUCTIONS
7.1 Starting
Insert the On-off button. (Fig. 4A)
Start the motor as follows:
1. Press the On-off button. (Fig. 4B)
2. And meanwhile, grasp the brake control handle and keep it in grasp. (Fig. 4C)
3. After the motor is running, then release the On-off button (Fig. 4D)
4. If you release the brake control handle, the motor will stop.
CAUTION!
The blade starts turning as soon as the motor is started.
WARNING!
Cutting elements continue to rotate after the motor is switched off.
7.2 LED
Please refer to the following table for the meaning of LED display. (Fig. 4E)
7.3 Tips for proper working
It is recommended that you overlap scarifying paths a little.
Try to scarify in straight lines for a nice, clean look
，
In so doing, the aeration swaths should always
overlap each other by a few centimeters in order to avoid bare strips.
If you use the grass catcher which is available as an option, it has to be emptied as soon as grass
clippings start to trail behind during scarifying.
DANGER!
Before taking off the grass catcher, switch off the motor and wait until the roller
has come to a stop.
To remove the grass catcher, lift up the rear cover with one hand, while unhooking the grass catcher
with the other.
How frequently you should scarify your lawn is determined primarily by the speed at which the grass
grows and the hardness of the soil.
Keep the underside of the equipment clean and remove soil and grass build-up. Deposits make it
more difficult to start the aeralor and decrease thquality of the scarifying.
Always scarify along inclines (not up and down).
Switch off the motor before doing any checks on the roller.
DANGER!
The roller rotates for a few seconds after the motor is switched off. Never attempt
to stop the roller. In the event that the rotating roller strikes an object, immediately switch off the
equipment and wait for the roller to come to a complete stop. Then inspect the condition of the
roller.
Tips on aerating properly with the aerator roller available as an option.
The way of working lor aerating is the same as for scarifying.
You should therefore observe these safety instructions and notes on working practice.
8. REPLACEMENT OF THE ROLLER
WARNING:
Be sure to wear work gloves.
The equipment can be assembled with the scarifying roller or the aerator roller.
Only replace the roller with an original DAYE roller, as this will ensure top performance and safety
under all conditions.
To change the scarifying roller or the aerator roller (DAYE 2425200001),which is available as an
option, proceed as follows:
Remove the roller
1. Remove the two screws. (Fig. 5A)
2. Lift the roller on this side and pull out in the direction of the arrow. (Fig. 5B)
Assemble the roller
1.Slide the new roller in the direction of the arrow onto the square-ended drive and press into the
holder. (Fig. 5C/ Fig. 5D)
2. Refasten the roller with the two screws.
Apply grease to the square-ended drive from time to time so that the rollers can be changed easily.
WARNING:
Remove the battery from the machine.
9. CLEANING AND MAINTENANCE
DANGER:
Always pull out the on-off button before performing any adjusting, repair, mainte-
nance or cleaning work on the equipment. Make sure that the spike drum is not rotating.
9.1 Cleaning
• Keep all safety devices, air vents and the motor housing free of dirt and dust as far as possible.
Wipe the equipment with a clean cloth or blow it with compressed air at low pressure.
• We recommend that you clean the device immediately each time you have finished using it.
• Clean the equipment regularly with a moist cloth and some soft soap. Do not use cleaning agents
or solvents; these could at tack the plastic parts of the equipment. Ensure that no water can seep
into the device. The ingress of water into an electric tool increases the risk of an electric shock.
9.2 Maintenance
• A worn out or damaged cutting unit should be replaced by an authorised expert.
• Take care that all fastening elements (screws. nuts, etc.) are firmly tightened, so that you can work
safely with the scarifier and aerator.
• Store the scarifier and aerator in a dry place.
• For longer life, all screw-fastened parts, such as wheels and axles should be cleaned and subse-
quently oiled.
• Regular servicing of the scarifier and aerator not only secures longer endurance and performance,
but also contributes to an accurate and simple scarification of your lawn.
• At the end of the season, carry out a general check of the scarifier and aerator, and remove all
residue collected. Before the start of every season, it is absolutely necessary to check the state of
the scarifier and aerator. Contact our customer service if repair work is necessary.
10. STORAGE AND TRANSPORT
Storage
Store the equipment and accessories out of children’s reach in a dark and dry place at above
freezing temperature. The ideal storage temperature is between 5 and 30 . Store the machine in its
original packaging.
Transport
• Switch the machine off and isolate it from the power supply before transporting it.
• Fit the shipping protectors if any.
• Protect the machine from damage and the strong vibrations that can occur particularly when
transporting in vehicles.
• Secure the machine against slipping and tipping over.
11.TROUBLESHOOTING
IMPORTANT NOTICE!
To protect the motor it is equipped with a thermal overload switch which cuts
out when overloaded, release the brake control handle, restart the machine after a short coo-
ling-down period.
12. ENVIRONMENTALLY FRIENDLY DISPOSAL
According to EU directive 2012/19/EU on electric and electronic equipment and its implementation
into national law, all electric tools must be separately collected and environmentally friendly recy-
cled. Alternative disposal: If the owner of the power tool does not return the tool to the manufactu-
rer, he is responsible for proper disposal at a designated collection point that prepares the device
for recycling according to national recycling laws and regulations.
This does not include accessories and tools without electric or electronic components.
