Cobra S32E User manual

S32E 2 in 1 Scarifier and Raker
OPERATOR’S MANUAL
Before use please read & understand this manual, paying
particular attention to the safety instructions.

SAFETY INSTRUCTIONS
Warning! Read these instructions carefully before operating this machine.
Make sure that you are familiar with the controls and properly operate the machine.
Following these instructions, you can reduce the risk of fire, electric shock and
personal injury.
GENERAL SAFETY INSTRUCTIONS
Read all safety warnings and all instructions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or serious injury! Save all warnings and
instructions for future reference. The term "garden power tool" in the warnings refers to
your mains-operated (corded) garden power tool or battery-operated (cordless) garden
power tool!
1. This garden power tool is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or a lack of
experience and knowledge. New users should be given supervision or instruction
concerning use of the garden power tool or given these instructions.
2. Children should not play with the garden power tool.
3. The garden power tool must be kept out of reach of children.
4. Store the instruction manual in a location accessible to all users of the garden power
tool and always include the instruction manual when passing it on to other users.
5. Instruct inexperienced persons on the safe use of this garden power tool using this
instruction manual.
IMPORTANT READ CAREFULLY BEFORE USE AND KEEP FOR FUTURE REFERENCE
Training
Read the instructions carefully. Be familiar with the controls and the proper use of the
machine.
Preparation
1. Never allow people unfamiliar with these instructions or children to use the product. Local
regulations can restrict the age of the operator.
2. Never operate the product while people, especially children, or pets are nearby.
3. Keep in mind that the operator or user is responsible for accidents or hazards involving the
lawnmower that occur to other people or their property
4. Wear ear protection and safety glasses at all times while operating this product.
5. Always wear substantial footwear and long trousers while operating the product. Do not operate
the product when barefoot or wearing open sandals.
6. Thoroughly inspect the area where the product is to be used and remove all stones, sticks,
wires, bones and other foreign objects.
7. Before using, always visually inspect to see that the tines or bolts are not worn or damaged.
Replace worn or damaged tines and bolts in sets to preserve balance.
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Operation
1. Operate the product only in daylight or in good artificial light.
2. Avoid operating the product in wet grass. If you must use the product in wet grass, take additional
precautions to avoid slipping.
3. Always be sure of your footing on slopes.
4. Walk, never run when using the machine.
5. Always work across the face of slopes, never up and down.
6. Exercise extreme caution when changing direction on slopes.
7. Do not operate the product on steep slopes.
8. Turn off the machine and use extreme caution when reversing or pulling the product towards you.
9. Stop the tines if the product has to be tilted for transportation. Do not operate the tines when
crossing surfaces other than grass, and when transporting the product to and from the working
area.
10. Never operate the product with defective guards, or without safety devices, for example deflectors
and/or grass catchers, in place.
11. Switch on the motor carefully according to the instructions and with your feet well away from the
tine(s).
12. Do not tilt the product when switching on the motor, except if the product has to be tilted for starting.
In this case, do not tilt it more than absolutely necessary and lift only the part which is away from
the operator.
13. Do not start the motor when standing in front of the discharge opening.
14. Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all
times.
15. Never pick up or carry the product while the motor is running.
16. Stop the motor and disconnect the product from the power supply:
a. Before clearing blockages or unclogging the discharge opening.
b. Before checking, cleaning or working on the product.
c. After striking a foreign object. Inspect the product for damage and make repairs before restarting
and operating the product.
d. If the product starts to vibrate abnormally (check immediately).
e. Whenever you leave the product.
17. Never use the scarifier without the grass catcher bag securely fitted.
Maintenance and storage
1. Keep all nuts, bolts and screws tight to be sure the product is in a safe working
condition.
2. Allow the product to cool before storing in any enclosure.
3. Check the grass catcher frequently for wear or deterioration.
4. Examine the product regularly and replace worn or damaged parts to ensure safe use.
Additional safety warnings
1. Warning! Beware of sharp tines. The tines may continue to rotate after the motor is
switched off.
2. Do not use the product if the cords are damaged or worn.
3. Do not connect a damaged cord to the supply or touch a damaged cord before it is
disconnected from the supply. A damaged cord can lead to electrocution.
4. Keep extension cords away from the tines. The tines can cause damage to the cords
and lead to contact with live parts.
5. If operating a garden power tool in a damp location is unavoidable, use a residual
current device (RCD) protected supply. Use of an RCD reduces the risk of electric
shock but does not eliminate it entirely, it is not recommended to use the tool in damp
conditions.
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Vibration and noise reduction
To reduce the impact of noise and vibration emissions, limit the time of operation, use
low-vibration and low-noise operating modes and wear personal protection equipment.
Take the following points into account to minimize the vibration and noise exposure risks:
1. Only use the product as intended by its design and these instructions.
2. Ensure that the product is in good condition and well maintained.
3. Use the correct application tools for the product and ensure that they are in good
condition.
4. Keep a tight grip on the handles/grip.
5. Maintain this product in accordance with these instructions and keep it well lubricated
(where appropriate).
Plan your work schedule to break up any high vibration tool use and allow for breaks,
or time using tools that do not vibrate. Ideally you should spread use of a high
vibration tool over a number of days.
Emergency
Familiarise yourself with the use of this product by means of this instruction manual. Make
sure you are familiar with the safety directions and follow them to the letter. This will help
to prevent risks and hazards.
1. Always be alert when using this product, so that you can recognise and handle risks
early. Fast intervention can prevent serious injury and damage to property.
2. Switch off the machine and disconnect from the power supply if there is any
malfunction. Have the product checked by a qualified specialist and repaired, if
necessary, before use.
Residual risks
Even if you are operating this product in accordance with all the safety requirements,
potential risks of injury and damage remain. The following dangers can arise in
connection with the use of this product:
1. Health defects resulting from vibration emission if the product is being used over long
periods of time or not adequately managed and properly maintained.
2. Injuries and damage to property due to broken application tools or the sudden impact
of hidden objects during use.
3. Danger of injury and property damage caused by objects thrown by the machine.
WARNING! This product produces an electromagnetic field during operation!
This field may under some circumstances interfere with active or passive medical
implants! To reduce the risk of serious or fatal injury, we recommend persons with medical
implants consult their doctor and the medical implant manufacturer before operating this
product!
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VIBRATION
The European Physical Agents (Vibration) Directive has been brought in to help reduce
hand arm vibration syndrome injuries to power tool users. The directive requires power tool
manufacturers and suppliers to provide indicative vibration test results to enable users to make
informed decisions as to the period of time a power tool can be used safely on a daily basis and the
choice of tool. Further Advice can be found at www.hse.gov.uk
Vibration total values (triax vector sum) determined according to EN60335-2-92 and EN13683
Vibration level for operation
Vibration emission value ah = 3.591m/s²
Uncertainty K = 1.5 m/s²
The declared vibration emission value should be used as a minimum level and should be used with
the current guidance on vibration.
Calculating the actual period of the actual period off use can be difficult and the HSE website
has further information.
The declared vibration emission been measured in accordance with a standard listed test stated
above and may be used to compare one tool with another. The declared vibration emission value
may also be used in a preliminary assessment of exposure.
WARNING! The vibration emission value during actual use of the power tool can
differ from the declared value depending on the ways in which the tool is used and
dependant on the following examples and other variations on how the tool is used:
•
How the tool is used and the materials being ground or cut.
•
The tool being in good condition and well maintained.
•
The use of the correct accessory for the tool and ensuring it is sharp and in good
condition. The tightness of the grip on the handles.
•
And the tool is being used as intended by its design and these instructions.
This tool may cause hand-arm vibration syndrome if its use is not adequately
managed. This tool should not be used for extended periods of time.
WARNING! Identify safety measures to protect the operator that are based on an
estimation of exposure in the actual conditions of use (taking account of all parts of the
operating cycle such as the times when the tool is switched off and when it is running idle in
addition to the trigger time). Note: The use of other tools may reduce or increase the user’s
total working period on this tool. Using another tool with a similar vibration emission would
be equivalent to working for a longer period with this tool, while working with a machine with
no vibration emission might be equivalent to taking a break.
Helping to minimise your vibration exposure risk
Maintain this tool in accordance with these instructions and keep well lubricated (where appropriate).
Avoid using tools in temperatures of 10°C or less.
Plan your work schedule to spread any high vibration tool use across a number of days, or at least
allow for breaks, or time spent using other tools that do not vibrate.
Health Surveillance
All employees should be part of an employer’s health surveillance scheme to help identity any
vibration related diseases at an early stage, prevent disease progression and help employees
stay in work.
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Double insulation:
The tool is double insulated. This means that all the external metal parts are electrically insulated
from the mains power supply. This is done by placing insulation barriers between the electrical and
mechanical components making it unnecessary for the tool to be earthed.
Important note:
Be sure the supply is the same as the voltage given on the rating plate. The tool is fitted with a
two-core cable and plug. Remove the mains plug from the socket before carrying out any adjustment
or servicing.
SYMBOLS
Warning
Read the instruction manual
Compliance with relevant safety standards
Wear eye protection
Wear ear protection
Wear breath apparatus
Safety Gloves
Safety Boots, steel toecap and non-slip soles
To avoid potential electric shock, do not use the unit in humid or wet conditions
Switch off! Remove plug from the mains immediately if the cable is damaged or cut.
Work across the face of slopes, never up and down.
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Double insulation
Switch off! Remove plug from mains before cleaning or maintenance

Inspect the area where the product is to be used and remove all objects which
could be thrown by the machine. If you find objects while operating stop the
motor and remove them.
Beware of sharp tines. Tines continue to rotate after the motor is switched off.
Remove the plug from the power supply before maintenance work or if the power
cord is damaged.
The cutting device continues to rotate after the product is switched off. Wait
until all components have completely stopped before touching the product.
Objects thrown by the product could hit the user or other bystanders.
Always ensure that other people and pets remain at a safe distance from the
product when it is in operation. Children must not come near the area where
the product is.
Waste electrical products should not be disposed of with household waste, please
recycle where facilities exist. Check with your local authority or retailer for recycling
advice.
Guaranteed sound power level
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Keep the supply cord away from the cutting device.

1. Handle
2. Cord strain relief
3. Upper handle bar
4. Mounting set (x4) for handle bar
4a. Knob
4b. Bolt
5. Middle handle bar
6. Lower handle bar
7. Screw (x2)
8. Support
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9. Air vents
10. Depth/Height adjustment lever
11. Wheel
12. Castor
13. Discharge opening
14. Deflector guard
15. Grass catcher
15a. Bag
15b. Frame
16. Cable clip (x2)
17. Switch box
18. Lock-off button
19. Start/stop lever
20. Power cable
21. Cutting device (scarifying cylinder)
22. Mounting set for cutting device (x4)
22a. Bolt
22b. Spring washer
23. Cutting device (raking cylinder)
24. Bearing
25. Drive shaft
230-240V AC 50Hz
1300W
2990 /min
320mm
-10/-5/0/5/10 mm, 5 adjustments
30 L
IPX4
12.25 kg
TECHNICAL DATA
Rated voltage
Rated input power
No-load speed
Max. working width
Working height range
Grass catcher volume
Protection class
Net Weight
Cable length 10m
84.5 dB(A), K=3 dB (A)
97.9 dB(A), K=3 dB (A)
104 dB(A)
NOISE AND VIBRATION DATA
Measured sound pressure level
Measured sound power level
Guaranteed sound power level
Vibration: 3.591m/s², K=1.5m/s²
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The declared vibration value has been measured in accordance with a standard test method and
may be used for comparing one tool with another.
The declared vibration value may also be used in a preliminary assessment of exposure.
WARNING! The vibration emission value during actual use of the tool can differ from the
declared value depending on the ways in which the tool is used. Identify safety measures to
protect the operator that are based on an estimation of exposure in the actual conditions of use
(taking account of all parts of the operating cycle such as the times when the tool is switched off
and when it is running idle in addition to the trigger time).
The sound intensity level for the operator may exceed 85dB(A) and ear protection measures are
necessary.
1 SET
1PC
4PC
4PC
4PC
2PC
ACCESSORIES
Grass catcher with frame
Cutting device (raking cylinder)
Bolt (M6)
Knob
Spring washer
Screw
Cable clamp 2PC
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OPERATION INSTRUCTIONS
WARNING! Read all instructions carefully. Do not
connect the scarifier to the mains supply power
before it is completely assembled. Always wear
gloves during assembly.
1. INTENDED USE
1). This scarifier and raker is designated with a rated input
of 1300 Watts. Depending on the fitted cutting device, this
product is intended for either scarifying and removing
thatch from lawns or for raking in domestic and hobby
gardens.
2). When used as a scarifier, this product works by
scratching through and between the grass with specially
adapted prongs that collect and remove any unwanted thatch
from the lawn, whilst leaving the grass blades intact. At the
same time the product scarifies the ground resulting in a
better airing.
3). When used as a raker, the fine needles will scratch the
surface of the lawn while simultaneously picking light debris
for better oxygen absorption, airing and draining.
4). This product is not to be used in wet weather conditions
and may not be used on overly dry, wet or unusually high
grass, e. g. pasture grass or for shredding leaves.
5). This product is intended for private domestic use only,
not for any commercial trade use. It must not be used for
any purposes other than those described.
Fig. 1a
2. ASSEMBLY INSTRUCTIONS
Follow the operating instructions step-by-step and use the
pictures provided as a visual guide to easily assemble the
machine.
1). HANDLE BAR ASSEMBLY
a). Align the lower handle bars (6) with the supports (8). Make
sure the holes in the lower handle bars correspond with those
in the supports (8) and secure the bars with one screw (7)
each to the support (8).
(See Fig. 1a, 1b).
Fig. 1b
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6
7
6
8

b). Align the middle handle bars (5) to the lower ones (6).
Make sure the holes in the handle bars (5, 6) correspond
and secure them with one mounting set (4) on each side.
(See Fig. 2).
Fig. 2
c). Slide the cord strain relief (2) onto the upper handle bar (3).
(See Fig. 3).
Fig. 3
d). Align the upper handle bar (3) with the middle handle bar
(5) and secure them with one mounting set (4) on each side.
(See Fig. 4a, 4b).
Fig. 4a
Fig. 4b
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6
5
4b 4a
2
3
3
5
6
3
4b
4a

e). Fix the cord with the cord clips (16) to the handle bar
(Fig. 5).
Fig. 5
Fig. 6
2). GRASS CATCHER ASSEMBLY
WARNING! Do not attempt to use the product
without the grass catcher attached as objects may be
thrown.
WARNING! The product must be switched off and the
cutting device must have stopped rotating before
you attach or empty the grass catcher!
WARNING! Never use the scarifier without the
grass catcher bag securely fitted.
NOTE: A full grass catcher will reduce the performance of
this product. The grass catcher should be emptied when it is
half full.
Always attach the grass catcher (15) to the product
before operation.
a). Open the deflector guard (14), hold it in position and
align the hooks on the grass catcher (15) with the hinges on
the back of machine. (See Fig. 6).
b). Empty the grass catcher (15) frequently during use. Do not
wait until it is completely full. We recommend emptying it
when it is half full.
c). Lift the deflector guard (14) and pull the grass catcher (15)
off the hinges to remove it.
d). Empty the collected material onto a compost heap and
reattach it onto the product.
Fig. 7
3. CABLE ROUTING
1). Always route the electric mains cable away from the work
area to prevent it from coming into contact with the cutting
device. Plan your route before starting work. Start your work at
the nearest point to the electrical outlet, and work away from it.
This will keep the cable away from the cutting device and avoid
it being accidentally cut. Keep the cable over your shoulder for
added safety.
2). For cord strain relief of the cable, form a loop at the end of
the main cable and bring this through the opening in the handle
and insert it into the cord strain relief.
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16
14
15
20

4. CUTTING DEPTH ADJUSTMENT
WARNING! Always switch the product off and
remove the mains plug from the power supply
before making any adjustments.
Adjust the depth according to the needs of your lawn. The
most suitable depth depends on the kind of lawn and the
actual height of the grass.
Please note when working on an unkempt lawn with thick
thatch you should rake or scarify the lawn at a higher setting
before going over it again at a lower setting, so as not to put
too much strain on the motor.
1). Push the depth adjustment lever (10) towards the wheel
(11), then move it forward or backward to adjust the cutting
depth. (See Fig. 8a).
2). Adjust the lever (10) to one out of the five stages. Read
the adjusted depth from the scale. (See Fig 8b and the table
below).
Fig. 8a
Fig. 8b
Scale /
Position
Setting
Application
Depth
Scarifying
Depth
Raking
1 transport +10 mm
for transportation and
storage
+10 mm
for transportation and
storage
2 minimal +5 mm
scarifying a young or
sensitive lawn, removing
thin thatch layers, also use
this setting when scarifying
a second time in the
Autumn
+10 mm
raking a young or
sensitive lawn, removing
thin thatch layers
3 middle 0 mm
scarifying healthy lawn,
removing thatch
+5 mm raking healthy lawn
4 deep -5 mm
scarifying healthy lawn,
removing thicker thatch
0 mm
maximum/deepest raking
setting
5 maximal -10 mm
maximum/deepest
scarifying setting, removing
thick thatch layers
-5 mm do not use for raking
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5. POWER CONNECTION
WARNING! Before operating the scarifier, ensure
that the fastening elements are undamaged.
In order to reduce the risk of injuries, always switch off the
motor and pull out the mains plug before working on the
machine.
The product can be connected to any socket (with 230-240V
alternating current). We recommend to always use the
appliance via a Residual Current Device (RCD) with a
tripping current of max. 30mA.
1). Mains leads on scarifiers are particularly susceptible to
insulation damage. The causes of this include the following:
- The cable may be cut if the scarifier passes over it.
- Damage through crushing if the mains lead becomes
stuck under doors or windows.
- Cracks caused by ageing of the insulation sheath.
- Kinks caused by incorrect fastening of the mains lead.
2). Such damaged mains leads should not be used under
any circumstances as they may cause fatal injuries due to their
damaged insulation sheath.
3). Always check the plug and cable and make sure they are
in good condition before operation.
Fig. 9
6. STARTING AND STOPPING
1). STARTING
The product is fitted with a lock-off button feature. To start the
product, simply press the lock-off button (18) then fully press
and hold the start/stop level (19). The lock-off button can now
be released. (See Fig.9)
NOTE: It is not necessary to maintain pressure on the lock-off
button once the start/stop level is squeezed and the motor is
running. The lock-off button is a safety device to avoid
accidental start-up of the device.
2). STOPPING
The product will automatically stop once the start/stop lever is
released. The lock-off button will have to be pressed and the
start/stop lever squeezed to restart the motor.
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19
18

7. OVERLOAD PROTECTION
The overload protection will be activated in the following
circumstances:
1). A build up of scarified material around the cutting device.
2). If the material scarified is too large and causes the motor
to work beyond its capacity.
3). Where there is too much resistance against the cutting
device.
When the circuit breaker has been activated switch off the
product and disconnect from the power supply.
Let the product cool down and eliminate the cause of the
overload before using the product again.
8. GENERAL OPERATION
WARNING! In some countries regulations define
at what time of the day and on what days machines
are allowed to be used and what restrictions apply!
WARNING! If the product strikes a foreign object
stop the motor! Switch the product off, disconnect it
from the power supply and let it cool down. Inspect the
product thoroughly for damage! Have any damage repaired
before restarting!
WARNING! If the machine vibrates unusually
during operation is may indicate that it is damaged!
The product should be inspected and repaired immediately!
1). Check the product, its power cord and plug as well as
accessories for damage before each use. Do not use the
product if it is damaged or shows wear.
2). Double check that accessories are properly connected.
3). Push the product forward by its handle. Keep the handle
dry to ensure safe support.
4). Ensure that the air vents are always unobstructed and
clear. Clean them if necessary with a soft brush. Blocked air
vents may lead to overheating and damage the product.
5). Switch the product off immediately if you are disturbed
while working by other people entering the working area.
Always let the product come to complete stop before
releasing the handles.
6). Do not overwork yourself. Take regular breaks to ensure
you can concentrate on the work and have full control over
the product.
7). Mow the lawn before working and fertilise afterwards.
8). Make sure that the lawn is clear of stones, sticks, wire or
other objects that could damage the product or its motor.
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Fig. 10
9). Select the suitable working depth for the actual grass height.
10). Do not work with this product on a wet lawn because
the grass may stick to the underside of the product,
preventing the proper discharge of collected material, and
could also cause you to slip and fall.
11). Slowly push the product forward. Move the product at
an appropriate speed. Do not move it too fast or the
discharge opening may get blocked and the engine may
overload.
12). Work in slight overlapping rows. The most effective
pattern for scarifying/raking lawns is straight lines along one
of the sides. This will keep the rows even and ensures that
all the lawn is scarified/raked without missing any spots. (See
Fig. 10).
13). Circle around flower beds. When reaching a flower bed
in the middle of the lawn, make a row or two around the
circumference of the bed.
14). Pay special attention when changing direction.
SCARIFYING
Consider the weather when scarifying. Scarify the lawn with
an increased depth setting during spring time between April
and May as the lawn is better able to recover during this
season. During a wet summer scarify again in late summer
with a decreased depth setting. Do not scarify during
periods of hot weather condition. During a dry rainless
summer do not scarify a second time in autumn.
RAKING
In order that a healthy lawn can develop in the spring, it is
necessary for greater amounts of air to penetrate the area
around the roots of the grass. We recommend that you aerate
the lawn every 4 - 6 weeks depending on the state of your
lawn.
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MAINTENANCE
WARNING! Before carrying out any repairs or
servicing work, you must ensure that the product
has been disconnected from the power supply. Repairs
and maintenance work other than those described
within this instruction manual may be performed only by
an authorised service agent.
1. SERVICE AND STORAGE
To ensure long and reliable service, carry out the following
maintenance regularly. Servicing and cleaning work on the
product and the removal of the guards may only be carried
out after the motor has been switched off and the plug
disconnected from the power supply.
1). Regularly check for obvious defects such as loose,
dislodged or damaged chain and guide bar, loose
fixings and worn or damaged components.
2). Check that covers and guards are undamaged and
correctly fitted. Carry out necessary maintenance or
repairs before using the product.
3). If the cutting device should happen to fail despite the
care taken in manufacturing and testing, repair should be
carried out by an authorised specialist.
4). Do not clean the product while it is running.
5). Ensure that all the fastening elements (screws, nuts,
etc.) are tight at all times so that you can safely work with
the product.
6). Check the product frequently for signs of wear. Replace
worn or damaged parts.
7). Store your product in a dry place. To ensure a long
service life all screw parts should be cleaned and then oiled.
8). Clean the product with a brush or cloth. Do not use any
solvents or water to remove dirt.
9). The component that is subject to most wear is the cutting
device. You should therefore check the condition of the cutting
device and its mounting at regular intervals.
- If the cutting device is worn or blunt it must be replaced
immediately.
- If the product starts to vibrate excessively, this means
that the cutting device has not been balanced correctly or
has suffered deformation due to impacts. In this case it
must be repaired or replaced.
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Fig. 11a
raking cylinder with fine needles
Fig. 11b
2. REPLACING/CHANGING THE CUTTING DEVICE
WARNING! Always switch the product off,
disconnect it from power supply and let it cool down
before changing/replacing the cutting device!
WARNING! Always use the correct cutting device
according to the intended use! Observe the technical
requirements of this product (see the Technical specifications
section) when purchasing and using cutting devices!
Cutting devices are very sharp and become hot
during use! Handle them carefully!
Wear safety gloves when handling cutting devices in order to
avoid injuries like burns and cuts!
WARNING! Make sure the two bolts are completely
tight before using the product, don't use the product
if any of the bolts are missing or loose.
If a bolt thread is damaged, it must be replaced before the
machine can be used safely. You can replace it with one of a
suitable size.
The product has two functions, scarifying or raking. The
scarifying cylinder is preassembled on the product. The
raking cylinder is included in the supply box. The cylinder
can be changed according to the different applications. (See Fig.
11a, 11b)
1). Remove the grass catcher.
2). Place the product upside down on a flat stable ground to
access the underbody.
3). Loosen the two bolts (22a) with a suitable wrench,
remove them together with the spring washers (22b) and
the attached cutting device (21 or 23). (See Fig. 12a).
4). To remove the cutting device, first lift the bearing and
then pull it off of the drive shaft (25).
Fig. 12a
Fig. 12b
5). Align and insert the respective cutting device: Slide
the hex nut into the socket of the driving shaft (25) and fix
the bearing to the support with the bolts (22a) and spring
washers (22b). (See Fig. 12b).
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scarifying cylinder with blades
22a
22b