SCARIFIER PETROL 212 cm³
HST4020
Contents
1. Know your petrol scarifiers ................................................... 1
2. Symbols marked on the product ............................................. 1
3. General safety information ................................................ 2
3.1
Preparations ........................................................................ 2
3.2
Handing ............................................................................... 2
3.3
Maintenance and storage..................................................... 3
4. Layout and items supplied ................................................... 7
4.1
Layout ........................................................................... 7
4.2
Items supplied ................................................................... 7
5. Proper use ....................................................................... 7
6. Technical date........................................................................ 8
7. Before starting the equipment ................................................ 8
8. Operation ............................................................................... 9
8.1
Starting the equipment (Fig.6-7)........................................... 9
8.2
Adjusting the working depth (Fig.8) ...................................... 9
8.3
Stopping ............................................................................... 9
9. Cleaning, maintenance, storage, transport and ordering of
spare parts ........................................................................... 10
9.1
Cleaning ............................................................................. 10
9.2
Servicing ............................................................................ 10
9.3
Preparing the equipment for storage .................................. 11
9.4
Preparing the device for transport ...................................... 12
9.5
Ordering replacement parts ............................................... 12
10. Cleaning, maintenance and ordering of spare parts ........... 12
11. Troubleshooting guide ....................................................... 12
12. Service information ............................................................ 13
13. EC-Declaration of conformity ............................................. 14
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1
1.
Know your petrol scarifiers
Read this manual carefully, observing the recommended safety instructions before, during and after
using your lawn mower. Following these simple instructions will also maintain you lawn mower in good
working order. Familiarize yourself with the controls on your mower before attempting to operate it, but
above all, be sure you know how to stop your mower in
an emergency.
2.
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.
Sharp tines
‐
Beware of cutting fingers or toes
Remove spark plug
lead before maintenance
Wear eye and ear protection
Wait for all components of machine to have completely stopped
before
touching them.
Carbon monoxide(CO) danger
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2
3.
General safety information
Read these instructions carefully before use and keep them for later reference.
Note
Read the operating instructions carefully. Be familiar with the controls and the proper use of
the machine.
Local regulations can restrict the age of the operator.
3.1
Preparations
a)
Never allow children or other persons who are not familiar with the operating instructions to use the
equipment. Contact your local governmental agency for information regarding
minimum age
requirements for the user.
b)
Never use the equipment while other people, particularly children or animals ,are nearby.
c)
Always keep in mind that the operator or user of the equipment is responsible for
accidents
or risks involving other persons or their property.
d)
Wear hearing and eye protection while operating the equipment.
e)
Always wear sturdy, non slip footwear and long trousers when using the equipment.
Never use
the equipment barefoot or in sandals.
f)
Check the ground on which the equipment will be used and remove stones, sticks, wire,
bones and
other foreign bodies that could be caught up and violently flung out.
g)
Warning Petrol is highly flammable.
h)
Only store petrol in containers designed to hold petroleum
‐
based liquids.
i)
Only refuel out in the open and do not smoke during the refueling process.
j)
Always refuel before starting the engine. Always ensure that the fuel tank cap is closed
when the
engine is running and when the equipment is hot, also do not refuel.
k)
If petrol has overflowed, do not under any circumstances attempt to start the engine instead,
remove the equipment from the affected area. Avoid starting the engine until the
petrol fumes have
completely evaporated.
l)
For safety reasons, the petrol tank and other tank cap must be replaced if they are
damaged.
m)
Damaged silencers must be replaced.
n)
Before use. Always visually examine the tools and bolts for signs of wear or damage. To
prevent
any imbalance, replace worn out or damaged tools and bolts as a set only.
o)
If you operate equipment with an ejector at the rear and exposed rear rollers without a
debris
device, you must wear full eye protection at all times.
3.2
Handing
a)
Do not let the combustion engine run in enclosed areas, as dangerous carbon monoxide
gas can
build up.
b)
Only use the equipment in broad daylight or in well
‐
lit conditions.
c)
If possible, the equipment should not be used on damp grass or take special care to ensure
that you do
not slip.
d)
always maintain good footing on inclines.
e)
Only operate the equipment at a waling pace.
f)
Always guide the equipment across slopes, never straight up or down.
g)
Be particularly careful when you change direction on a slope.
h)
Do not work on overly steep inclines.
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3
i)
Be particularly careful when you turn the equipment around or pull it toward yourself.
j)
Stop the tools if the equipment has to be tipped to one side for transport purposes, stop the tools if
you cross any surfaces other than grass and whilst transporting the equipment
from and to the area
you wish to use it on.
k)
Never use the equipment with damaged or missing safety devices, e.g. without deflector
plates
and/or the grass collecting device.
l)
Do not change the engine governor settings or over
‐
speed the engine.
m)
Disengage all tine and drive clutches before starting the engine.
n)
Start or press the starter switch with caution. Make sure that your feet are far enough
away from
the tool(s).
o)
Do not tilt the equipment when you start the engine unless the equipment must be raised off of the
ground a little in order to start it. In this case, tilt it as little as absolutely necessary
and only raise the side
opposite to that of the user.
p)
Do not start the motor if you are positioned in front of the chute.
q)
Never move your hands or feet to ward or under any rotating parts. Keep clear of the
chute
opening at all times.
r)
Never lift or carry the equipment with the engine running.
s)
Switch off the motor and disconnect the spark plug boot:
‐
Before you release a jam or remove blockages in the ejector duct.
‐
Before you check or clean the machine or carry out work on it.
‐
If you have struck a foreign object.
Check the equipment for signs of damage and carry out the required repair work before
you restart it
and use the machine.
If the equipment starts to vibrate unusually(check immediately).
t)
Switch off the motor and disconnect the spark plug boot:
‐
Whenever you leave the equipment unattended.
‐
Before you refuel.
u)
Close the engine’s throttle valve and the engine has come to a standstill.
3.3
Maintenance and storage
a)
Make sure that all nuts, bolts and screws are tightened securely to ensure that the
equipment
is in safe working condition.
b)
Never store the equipment with petrol in the tank inside a building in which petrol fumes
could come
into contact with open flames or sparks.
c)
Allow the motor to cool before you put the equipment in the enclosed area.
d)
In order to avoid fire hazard, keep the engine, exhaust, battery compartment and the area
around the
fuel tank free from grass straw, moss, leaves and leaking grease.
e)
Make regular checks on the grass collecting device for wear or damaged parts.
f)
Check the equipment at regular intervals and replace worn or damaged parts for your own
safety.
g)
If the fuel tank needs to be emptied, ensure that it is done out in the open. The drained fuel should
be stored in a container specifically designed for fuel or be disposed of with
special care.
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8 12
11
10
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11
10
2
12
4a
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6
max.
min.
a
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7
4.
Layout and items supplied
4.1
Layout (Fig. 1/2)
1.
Engine start/stop lever – engine brake
7. Throttle lever
2.
Top push bar 8. 2 fastening nuts for top push bar
3.
Bottom push bar 9. 4 fastening screws for bottom push bar
4.
Scarifying depth
10. 4 fastening nuts for bottom push ba
5.
Ejector flap 11. 2 cable securing clips
6 Grass basket
12. 2 fastening screws for top push bar
4.2
Items supplied
Please check that the article is complete as specified in the scope of delivery. If parts are
missing,
please contact our service center or the sales outlet where you made your purchase at the latest within 5
working days after purchasing the product and upon presentation of a valid bill of purchase. Also, refer to
the warranty table in the service information at the end
of the operating instructions.
Open the packaging and take out the equip
‐
ment with care.
Remove the packaging material and any packaging and/or transportation braces (if
available).
Check to see if all items are supplied.
Inspect the equipment and accessories for transport damage.
If possible, please keep the packaging until the end of the guarantee period.
Danger!
The equipment and packaging material are not toys. Do not let children play with plastic
bags, foils or
small parts. There is a danger of swallowing or su
ff
ocating!
Original operating instructions
Safety
instructions
5.
Proper use
The equipment is designed for scarifying lawned areas. The scarifying process is designed for
rip
‐
ping
moss and weeds
‐
complete with their roots. Out of the soil and for loosening the
soil. As a result your
lawn can absorb nutrients better and is cleaned. We recommend you to
scarify you lawn in the spring
(April) and autumn (October).
Important!
Due to the high risk of bodily injury to the user, the equipment may not be used to
grind up branch or hedge clippings. Moreover, the equipment may not be used as a power cultivator to
level out high areas such as mole hills. For safety reasons, the equipment may
not be used as a drive
unit for other work tools or tool sets of any kind.
The equipment is to be used only for its prescri
‐
bed purpose. Any other use is deemed to be a case of
misuse. The user / operator and not the manufacturer will be liable for any damage
or inju
‐
ries of any
kind caused as a result of this.
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8
Please note that our equipment has not been de
‐
signed for use in commercial, trade or industrial
applications. Our warranty will be voided if the machine is used in commercial,
trade or industrial
businesses or for equivalent purposes.
6.
Technical data
Engine type
1 cylinder,
4
‐
stroke
Engine oil(L)
0.6
Displacement(cm3)
212
Blades(number)
18
Engine Power(kW)
4.3
Blade diameter(mm)
166
Engine rated
speed(rpm/min)
3600
Depth setting(mm)
‐
15
‐
+5
Working speed(rpm/min)
2800
Working width(mm)
400
Fuel type
Unleaded petrol
Tank capacity(L)
3.6
LpA sound pressure level
dB(A)
75
Weight(kg)
34±5
LwA sound power level
dB(A)
95
Vibration at left
m/s
2
20
Measured uncertainty k
dB(A)
2
Vibration at right
m/s
2
23
Guarantee LwA
dB(A)
98
Uncertainty k
m/s
2
0.5
7.
Before starting the equipment
The equipment is delivered unassembled. The grass basket and the complete push bar must be
assembled and mounted before using the equipment. Follow the operating instructions
step
‐
by
‐
step
and use the pictures provided as a visual guide to easily assemble the equipment.
Fitting the top push bar holder (Fig. 4a)
Position the upper push bar (Fig. 4a / Item 2) such that its holes line up with the holes of the
lower bar.
Screw the tubes together, using the screws (Fig. 4a / Item 12) and nuts (Fig. 4a / Item 8) sup
‐
plied. Use
the supplied cable clips (Fig. 4b / Item 11) to secure the throttle cable
and the engine Start / Stop
cable to the lower push bar.
Fitting the debris box (Fig. 5)
Lift the ejector flap (Fig. 5 / Item 5) with one hand and attach the debris box (Fig. 5/Item 6)
to the handle
from above using your other hand.
Important: Before you attach the debris box you must ensure that the engine is switched o
ff
and the
roller is not rotating.
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9
8.
Operation
Important!
The engine does not come with oil in it. Therefore, be sure to add oil before starting the
engine. The oil level
in the engine must be checked each time before carrying out any work.
Important!
When the engine brake lever is re
‐
leased it must return to its initial position and the engine
must stop. If this
is not the case, do not use the equipment again.
8.1
Starting the equipment (Fig. 6
–
7)
In order to avoid any unintentional start
‐
ups of the engine, it comes equipped with an
engine brake
(Fig. 6/Item 1) which must be pressed at all times whilst the device is in use,
otherwise the engine will
stop.
Open the petrol cock (Fig. 7 / Item B). Set the cock to “ON” for this purpose.
Set the
choke lever (Fig. 7/Item C) to the “Choke” position.
Note: Normally the choke is not required to restart a warm engine.
Move the
throttle lever (Fig. 1 / Item 7) to the center position.
Press the engine brake lever (Fig. 6 / Item and pull the starter cable (Fig. 7 / Item A)
forcefully until the
engine starts.
Allow the engine to warm up briefly and then set the choke lever (Fig. 7 / Item B) to the
“RUN” Position.
The speed of the cutter unit can be controlled using the throttle lever (Fig. 6 / Item 7) (tortoi
‐
se = slow /
rabbit = fast).
Important!
Always pull the starter cable slowly until you feel the initial resistance before you then pull it
quickly to start the
engine. Do not allow the starter cable to whip back of its own accord.
Important!
The scarifier roller begins to rotate as soon as the engine is started.
Important!
Never open the ejector flap when the motor is running. A rotating cutting unit can cause
injuries.
Always fasten the ejector flap carefully. The flap flips back to the “Closed” position by the
tension springs!
Always ensure that a safe distance (provided by the long handles) is maintained between the user and the
housing. Be especially careful when scarifying and changing direction on slopes and inclines. Maintain a
solid footing and wear sturdy, non
‐
slip footwear and long trousers.
Always sca
‐
rify along the incline
(not up and down).
For safety reasons, the scarifier may not be used to scarify inclines whose gradient exceeds
15
degrees.
Use special caution when backing up and pulling the scarifier (tripping hazard)!
8.2
Adjusting the working depth (Fig. 8)
To set the working depth, push the lever for set
‐
ting the depth (Fig. 8 / Item 4) gently away
from the
device, set the required depth and then lock the lever back into position.
8.3
Stopping
When the work is finished, release the rotor engagement lever.
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10
Important!
For transport move the lever for set
‐
ting the depth to the highest position.
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. Insodoing, the aeration swaths should always overlap each other by a few
centi
‐
meters in order
to avoid bare strips.
As soon as grass clippings start to trail the scarifiers, it is time to empty the grass basket.
Important!
Before taking o
ff
the grass basket, switch o
ff
the motor and wait until the roller has come to
a stop.
To remove the grass basket, lift up the ejector flap with one hand, while unhooking the
basket 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 di
ffi
cult to start the aerator and decrease the quality of the scarifying.
Always scarify along inclines (not up and down). Switch o
ff
the motor before doing any
checks on the
roller.
Important!
The roller rotates for a few seconds after the motor is switched o
ff
. Never attempt to stop the roller. In the
event that the rotating roller strikes an object, immediately switch o
ff
the equipment and wait for the roller
to come to a complete stop. Then inspect the condition of
the roller. Replace any parts that are
damaged.
9.
Cleaning, maintenance, storage, transport and ordering of spare parts
Important!
Never work on or touch conducting parts on the ignition unit with the engine running.
Always pull the
spark plug boot from the spark plug before starting any work of care or maintenance. Never perform any
work on the machine while it is run
‐
ning. Any work not described in these Operating Instructions must be
performed by an authorized service
workshop only.
9.1
Cleaning
The scarifier should be cleaned thoroughly eve
‐
ry time after it has been used. This
particularly
applies to its underside and the blades. To do so tip the scarifier slightly on to its
side and remove the
dirt.
Important. Before you tip the equipment, the pet
‐
rol tank must be emptied to prevent petrol
leaking out. Ideally you should use a conventional petrol extraction pump for this
purpose.
9.2
Servicing
Checking the oil level
Set the equipment down on a flat, level surface.
Unscrew the oil dipstick by turning it anti
‐
clockwi
‐
se. The oil level must be as shown in
Figure 10.
Important!
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11
Never run the engine with no or too little oil. This can cause serious damage to the engine.
Changing the oil
a)
Change the engine oil every year before the start of the season (in addition to the
informa
‐
tion in the petrol service manual) when the engine is warm.
b)
Use only recommended engine oil.
c)
Place a suitable oil drip tray beneath the oil drain screw.
d)
Remove the oil filler screw (Fig. 9 / Item A).
e)
Undo the oil drain screw (Fig. 9 / Item B) and drain the oil into a suitable container.
f)
Close the drain screw again when all the used oil has been drained.
g)
Pour engine oil into the equipment as shown in Figure 10.
h)
Dispose of the used oil in accordance with applicable regulations.
Care and adjustment of the cables
Oil the cables at regular intervals and check that they move easily.
Servicing the air filter
Soiled air filters reduce the engine output by sup
‐
ply too little air to the carburetor.
Regular checks
are therefore essential. The air filter should be checked after every 50 hours
of use and cleaned if
necessary. If the air contains a lot of dust, the air filter should be checked more frequently.
a)
Remove the air filter as shown in Fig. 11
‐
13.
b)
Clean the air filter only with compressed air or by tapping it.
c)
Assemble in reverse order
Important!
Never clean the air filter with petrol or inflammable solvents.
Servicing/Replacing the spark plug
Check the spark plug for dirt and grime after 10 hours of operation and if necessary clean it
with a copper
wire brush. Thereafter service the spark plug after every 50 hours of operation.
a)
Pull off the spark plug boot (Fig. 14) with a twist.
b)
Remove the spark plug using a spark plug wrench (Fig. 15).
c)
Assemble in reverse order.
9.3
Preparing the equipment for storage
Caution
Do not empty the petrol tank in enclosed areas, near fire or when smoking. Petrol fumes can
cause
explosions and fire.
a)
Empty the petrol tank with a petrol suction pump.
b)
Start the engine and let it run until any remai
‐
ning petrol has been used up.
c)
Change the oil at the end of every season. To do so, remove the used engine oil from a
warm
engine and refill with fresh oil.
d)
Remove the spark plug from the cylinder head. Fill the cylinder with approx. 20 ml of oil from an oil
can. Slowly pull back the starter handle, which will bathe the cylinder wall
with oil. Screw the
spark plug back in.
e)
Clean the cooling fins of the cylinder and the housing.
f)
Be sure to clean the entire machine to protect the paint.
g)
Store the machine in a well
‐
ventilated place.
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12
9.4
Preparing the device for transport
a)
Drain the petrol tank using a petrol extraction pump.
b)
Always let the engine run until it has used up the remainder of petrol in the tank.
c)
Empty the engine oil from the warm engine.
d)
Remove the spark plug boot from the spark plug.
e)
Clean the cooling fins of the cylinder and the housing.
f)
Remove the push bars if necessary. Ensure that the cables are not kinked.
9.5
Ordering replacement parts
Please quote the following data when ordering replacement parts:
a)
Type of machine
b)
Article number of the machine
c)
Identification number of the machine
d)
Replacement part number of the part required For our latest prices and information
please go
to www.ducar.cn
10.
Cleaning, maintenance and ordering of spare parts
The unit is supplied in packaging to prevent its being damaged in transit. This packaging is raw material
and can therefore be reused or can be returned to the raw material system. The unit and its accessories
are made of various types of material, such as metal and plastic. De
‐
fective components must be
disposed of as spe
‐
cial waste. Ask your dealer or your local
council.
11.
Troubleshooting guide
Fault
Possible causes
Remedy
The motor does
not start
Engine brake lever not
pressed
Spark plug defective
Press the engine brake lever
Replace spark plug
Top up fuel
Engine does not
run smoothly
Air filter dirty
Spark plug worn
Choke open
Clean the air filter
Clean/Replace the spark plug
Set choke lever to “Run” position
The equipment
does not
operate
smoothly and
‐
Blades imbalanced
‐
Have the blades replaced by a cus
‐
tomer
service workshop.
Motor is
running,
roller
‐
V
‐
belt torn
‐
Have the V
‐
belt replaced by a cus
‐
tomer
service workshop.
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13
12.
Service information
We have competent service partners in all countries named on the guarantee certificate whose contact
details can also be found on the guarantee certificate. These partners will help you with all service re
‐
quests such as repairs, spare and wearing part orders or the
purchase of consumables.
Please note that the following parts of this product are subject to normal or natural wear
and that the
following parts are therefore also required for use as consumables.
]
* Not necessarily included in the scope of delivery!
In the e
ff
ect of defects or faults, please register the problem on the internet at
www.ducar.cn.
Ple
‐
ase ensure that you provide a precise description of the problem and
answer the following
questions in all cases:
a)
Did the equipment work at all or was it defective from the beginning?
b)
Did you notice anything (symptom or defect) prior to the failure?
c)
What malfunction does the equipment have in your opinion (main symptom)? Describe
this
malfunction.
Category
Example
Wear parts*
Spark plug, air filter, V
‐
belt, petrol
filter, blade (roller)
Consumables*
Missing parts
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14
13.
EC DECLARATION OF CONFORMITY
EC DECLARATION OF CONFORMITY
For the following machinery: Product name: Petrol Scarifier Commercial name: N/A Function: N/A
Type: Gasoline Model No.: HST4020
is herewith confirmed to fulfill all the relevant provisions of Machinery Directive (2006/42/EC)
and the following harmonized standard have been complied with EN 13684:2004+A3
is herewith confirmed to fulfill all the relevant provisions of Electromagnetic Compatibility Directive
(2014/30/EU)
and the following harmonized standard have been complied with EN ISO 14982: 2009
is herewith confirmed to fulfill all the relevant provisions of
Noise Emission Directive by equipment for use outdoors (2000/14/EC + 2005/88/EC) Conformity
Assessment Procedure: 2000/14/EC, amended by 2005/88/EC‐ Annex VI Measured sound power
level: 95 dB(A)
Guarantee sound power level: 98dB(A) Responsible for marking this declaration is the
Manufacture’s Name : Chongqing Dajiang Power Equipment Co., Ltd. Manufacturer’s Address :
Qinggang Industrial Zone, Chongqing 402761, P.R. China
Person responsible for compiling the technical files established within the EU Name, Surname : ‐‐
Address : Mr. Olivier Patriarca
Person responsible for making this declaration Name, Surname : Cheng Pingzhen
Position/Title : Certification Engineer
Place : Chongqing
Date : 2018.5.21
Philippe MARIE / PDG
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