Officine Carpi Brush Cutter C 34 DS C 42 DS Instruction Manual

							SAFETY MEASURES 
Each element of this machine is a potential safety
hazard if used improperly or poorly maintained.
We recommend that special attention is paid to the
sections starting with the following headings:
WARNING:
Indicates the risk of serious personal injury, or
even death, if the instructions are not followed.
PRECAUTION:
Indicates the potential risk of serious personal
injury or damage to material if the instructions
are not followed.
TRAINING 
A1. Read the instructions in this manual care-
fully.
Before using the brush cutter, the operator
must be familiar with the controls and know
how to stop the motor quickly. The operator
must also know how to use it correctly.
A2. Use the brush cutter for the purpose it
was designed for, i.e.:
–Cutting grass with a Nylon line (e.g.
around the edges of lawns, flower beds,
walls, fences and small grassy areas to
tidy the areas that have been cut with a
lawnmower).
–Cutting tall grass or twigs with the help of
metal or plastic blades.
–If the brush cutter bears the warning
symbol on page 9, the use of a circular
saw blade is forbidden. Using a circular
saw blade with brush cutters bearing this
symbol puts the operator at risk of
serious injury or even death.
–Any other use may be dangerous or
result in the deterioration of the machine.
A3. Never let children or people who have not
read the instructions use the brush cutter.
Locals laws may set a minimum age for the
user.
A4.Do not use the brush cutter:
–When animals or especially children are in
the vicinity.Always ensure that any other
people present are at least 15 metres
away from the machine.The brush cutter
is designed for use by one person at a
time.
–If the user has taken medicine, alcohol
or drugs that may slow reflexes, impair
alertness and/or vision.
–If the operator is tired or unwell.–If any of the safety devices, e.g. the
equipment guard, are not in place or are
damaged.
–If the safety device is not the specific
device for that cutting machine.If a
head with a nylon line is used, ensure that
the line-cutting bladeis in place so that
the line is cut to the correct length.
–For shoulder-mounted brush cutters: with
a system or an accessory other than the
flexible shaft that comes with the brush
cutter.
A5. Do not modify the edge trimmer or the
brush cutter:this may jeopardise operator
safety by exposing him/her to accidents and
serious injury.
A6.The owner or user is responsible for any
accidents or risks run by third parties or their
possessions.
PREPARATION
B1. Do not use the brush cutter when bare-
foot or wearing sandals. Do not use the
brush cutter with baggy clothes that
could get caught on branches or in the
rotating tool.
While the machine is in use, the operator
must wear long trousers, boots or safety
shoes with slip-proof soles, goggles or a
protective visor to protectagainst flying
objects, gloves, (preferably in leather) and
earmuffs or a soundproof helmet. To pro-
tect the head, a safety helmetmust be worn
in areas at risk from falling objects (bran-
ches, stones etc.).
B2.The area to be cut must be inspected meti-
culously so that all foreign bodies that
could be thrown up by the machine(sto-
nes, pieces of iron, bones, etc.) can be remo-
ved.
B3. Petrol is highly inflammable.
–Store the fuel in purpose-made canisters.
–Fill up the tank outdoors only. Do not
smoke either when performing this opera-
tion or any other that involves handling
fuel.
–Never remove the petrol tank cap or fill it
up while the motor is in operation or
while it is still hot.
–Do not start the machine if the tank is
overflowing with fuel:if fuel is spilt,
remove the brush cutter from the area and
do not light flamesuntil the fuel has eva-
porated and the vapours have dissipated.
–Close the tank and the container properly
31
GB 
						

							by ensuring that the caps are on tight.
B4.Replace the exhaust silencers if they are
faulty.
B5. Each time the machine is used, a general
check must be carried out on the condition of
the equipment, cutting unit, guards and
fasteners before switching it on; this must be
done to ensure that the parts are not worn,
damaged or loose.Always check that the
throttle lever and “STOP”button work cor-
rectly. Check that the lever that blocks the
throttle works correctly; the throttle
should only work when the safety lever on
the opposite side to the grip is pressed
simultaneously.
B6. Check that the handles and the harness
attachment are in the correct position and
that the machine is well balanced.The cor-
rect positions and adjusting procedures are
explained in the “How to wear the straps”
chapter in this manual.
B7. Ensure that the “minimum revs”speed is
set correctly so that the machine stops
running when the throttle is released.
USE
C1. Do not start the motor indoors or in
poorly ventilated areaswhere toxic carbon
monoxide fumes can accumulate.
C2. Work in daylight only.
C3. Wherever possible, do not use the machi-
ne on wet ground.
C4.While the machine is in use, the user must
keep a safe distance away from the blade.
This distance depends on the position of the
harness attachment.
C5. Always walk. Never run or stand in an
unstable position. Be careful of obstacles
such as stones, tree stumps etc. which the
operator could trip over.
C6. Do not use the machine on slopes that
could put the operator at risk. Mind your
step when working on a slope and always
work in a stable position.Always use the
cutter on the flat. Never use it while walking
up or down a slope.
C7. It is the user’s responsibility to assess the
potential risks of the work area and to
take all the necessary precautions to
ensure his/her safety.This is especially
important when working on slopes, unstable,
slippery or moving ground.
C8. If metal cutting tools(e.g. 3-pointed disks,
4-pointed disks, circular saw) are used,
there is the risk that they will recoil if theyhit a solid object(stones, tree stumps etc.).
The brush cutter will be forced in the opposi-
te direction to the one in which the tool rota-
tes.
C9. Never adjust the motor timing so that it
exceeds its standard running speed.
C10. Before starting the motor, ensure that
anyone in the vicinity is at a safe distance
away (at least 15 metres) from the machi-
ne, that the cutting tool is not touching
the ground and that the machine is stable.
C11. When the tool rotates, it may throw up
objects from the ground. Keep a safe dis-
tance of at least 15 metres between the
machine and people or animals.
Do not use the brush cutter near vehicles
or anything else that might be damaged
by flying objects.
C12.Start up the motor carefully in accordance
with the user’s instructions, keeping well
away from the cutting tool.
C13. Stop the motor and disconnect the spark
plug wire in the following cases:
–Before carrying out any work on the cut-
ting system.
–Before cleaning, checking, adjusting or
repairing the brush cutter. Only adjust-
ments to the carburettor and the minimum
setting are made with the motor running.
During this operation, work with the drive
shaft fitted, also ensure that the equipment
does not come into contact with any object
and that the machine is in a stable posi-
tion.
–After hitting an object, inspect the cutting
system and the drive shaft to check that
there is no damage. Make any repairs
necessary before using the machine
again.
–If the brush cutter starts to shake in an
irregular manner, look for the cause of the
vibrations and find a solution.
C14. Stop the motor in the following cases:
–Whenever the brush cutter is left unsuper-
vised.
–Before filling with fuel.
–During movement from one work area to
another.
C15.Always keep the brush cutter attached to the
harness while you are working.
MAINTENANCE AND STORAGE 
D1. Ensure that all screws and bolts are
tightly fastened so that the machine can
32
GB 
						

							be used in safety.Regular maintenance is
essential for safety and a consistently high
performance.
D2. Do not use the machine if any parts are
damaged or worn. These parts must be
replaced, not repaired.Use original spare
parts. The cutting tools must always bear the
manufacturer’s mark as well as the maximum
working speed and direction of rotation for
circular saw blades. Spare parts that are not
the same quality may damage the machine
and jeopardise safety.
D3. Wear thick gloves to remove and refit the
cutting tools.
D4. Never store the brush cutter with fuel in
the tank in an environment where petrol
fumes could come into contact with a
flame, spark or sources of extreme heat.
D5. Store the brush cutter in a clean and dry
environment, out of the reach of children.
D6. Let the motor cool down before it is sto-
red in any environment.
D7.To reduce the risk of fire, clean any leaves,
grass or excess oil from the brush cutter,
especially its motor, cooling fins, exhaust
pipe and fuel tank.
D8.While it is being stored or transported, cover
the blade with its guard in order to prevent
accidental injury.
D9. If the fuel tank has to be drained, do so
outdoors when the motor is cold.
D10.In order to protect the environment, do not
throw used oil or fuel into sewers, down
drains, or directly onto the ground. Your local
service station will be able to recycle the oil
and the fuel in complete safety.
ASSEMBLY
The brush cutters are supplied pre-assembled in
their packaging. Nevertheless, the following simple
operations have to be carried out.
MONO BRUSH CUTTERS
For Mono models with a low motor capacity,it is
necessary fasten the front grip with barrier using
the bottom cap. Once the grip and the bottom cap
have been fitted to the drive pipe, the edge of the
grip has to be positioned on the edge of the label
indicated by the arrow. Fit the screws (with was-
hers) into the grip holes and fit the bolts into their
seats. Tighten the screws a little (Fig. 1A). Then
tighten the screws completely, ensuring that they
are all fastened equally.WARNING The grip has to be fastened to the
drive pipe in line with the edge of the label indica-
ted by the arrow (label shown on page 9 of this
manual).This position must never been chan-
ged.
For Mono models with a high motor capacity,it
is necessary to fasten the front grip with barrier to
the plastic housing that covers the drive pipe.
Remove the two screws with washer from the hou-
sing; position the grip so that the grip holes are
lined up with the housing holes; refasten the grip
using the two screws with washer (Fig. 1B).
DUPLEX BRUSH CUTTERS
For Duplexmodels, a grip with bull handles has to
be fitted.
For Duplex models with a low motor capacity,
put the grip with the rubber fittings into its seat; fit
the top element and fasten the grip in the working
position using the screws with washers and the
nuts supplied (Fig. 2A). The bull handles can be
removed if the machine has to be transported or
stored so as to reduce its dimensions.
WARNING   The bull handle support is fastened to
the drive pipe in the position shown by the arrow on
the label on page 9 of this manual.This position
must never be changed.
For Duplex models with a high motor capacity,
the bull handles are fastened with a single screw
(Fig. 2B).
To fit the bull handles: unfasten the screw, turning
it anticlockwise, lift the top clamp and fit the hand-
les. Fasten the clamp screw a little, turning it clock-
wise. Position the handles until they are in the wor-
king position and then fasten the whole unit by tigh-
tening the screw completely.
The grip can be folded for transportation or stora-
ge: loosen the screw until the bull handles turn, the
grip can then be fastened in the new position.
FLEX BRUSH CUTTERS
Proceed as follows to assemble the Flexshoulder-
mounted brush cutters:
a) Insert the end of shaft ‘a’that protrudes from the
drive pipe into square hub ‘b’connected to the
motor (Fig. 3).
b) Press pin ‘c’and insert coupling ‘d’of the flexible
rubber shaft into the flange hole (Fig. 3). Ensure
that the pin comes up and blocks the flexible
pipe. Pull gently on the metal coupling at the
end of the flexible pipe to check this.
33
GB 
						

							c) After the filter lid has been removed by pressing
the top tab, connect the throttle cable. Pass the
steel cable through the hole of the threaded
adjusting screw fastened to the carburettor.
Then fit the cable in its seat on the throttle lever.
d) Connect the STOP  cables (‘e’in Fig. 3) using
the two connectors.
e) To join the flexible rubber pipe to the rigid drive
pipe:
Fit the flexible shaft that protrudes from the end
of the grip (‘a’in Fig. 5) into the square hub on
the rigid part of the drive (‘b’in Fig. 5). After cen-
tring reference pin ‘c’in its seat, tightly fasten
ring nut ‘d’(Fig. 5).
f) Fasten the grip firmly to the drive pipe (Fig. 4).
Once the grip and the bottom cap have been fit-
ted to the drive pipe, the edge of the grip has to
be positioned on the edge of the label indicated
by the arrow. Fit the screws (with washers) into
the grip holes. The rear left screw must also be
used to fasten flange ‘a’in Fig. 4. Insert the nuts
into their seats and tighten the screws a little.
Then firmly tighten all the screws equally.
If the dimensions of the brush cutter have to be
reduced for transportation or storage, loosen the
ring nut (‘d’in Fig. 5) and separate the rigid drive
shaft from the flexible shaft. The flexible pipe can
also be separated from the motor by extracting it
from its seat: to do this, press the pin (‘c’in Fig. 3)
and at the same time remove the shaft from the
flange by taking it by the metal coupling. If the
shoulder-mounted model is used, put on the back-
pack and connect the elastic strap to flange ‘a’Fig.
4.
WARNING   The grip has to be fastened in line
with the arrow on the drive pipe.This position
must never be changed.
FASTENING THE  GUARD 
Never work without the guard.The guard must
be fitted with the screws with washers that come
with the machine (Fig. 6). If a 4-pointed disk is fit-
ted to the brush cutter, the tool has to be removed
before the guard is fitted: stop the drive shaft from
rotating by using the torx key (Fig. 8) and then
unfasten the screw by turning it clockwise.
The guard must be the correct type both for the
machine model and for the cutting tool.
When the line head is used, the guard must be fit-
ted with a line-cutting blade.If the blade disk
guard is not fitted with a line cutter, then the guard
has to be fitted with the bottom band with knife.
After the bottom band and its guides have been fit-ted into the seats, press the band towards the
guard so that all the teeth are released (Fig. 7).
If the saw disk is used, a suitable guard has to
be fitted.
The saw diskmust not be used if the machine or
the guard bear the symbol forbidding the use of this
tool (symbol shown on page of this manual).
WARNING   In order to guarantee that the brush
cutter is used properly and safely, the assembly
instructions for the protection and safety com-
ponents must be followed meticulously.The
manufacturer shall not be held liable if the brush
cutter is used without the aforementioned protec-
tion and safety devices.
CUTTING TOOL  ASSEMBLY 
The use of cutting tools other than the 2-line
heads, metal disks or circular saw blades may
cause premature wear or damage the machine.
METAL DISK OR CIRCULAR BLADE DISK
ASSEMBLY 
a) Put on a pair of safety glovesbefore touching
the metal disk.
b) Using the key supplied, remove the hexagonal
head screw by turning it clockwise. Remove the
elastic washer, fixed housing and ring nut B.
c) Fit the metal disk in between ring nut A and ring
nut B, check that the grooves on the ring nuts
and the head shaft fit together perfectly. Position
the fixed housing and fasten the hexagonal
screw by turning it anticlockwise.
d) The final safety measure involves blocking the
shaft rotation: fit the torx key (or a steel rod) into
the hole (Fig. 8), turn the tool slowly until the key
goes into the hole of the inner ring nut, which
will stop the tool rotating. Tighten the screw and
remove the key from the hole.
WARNING   If the brush cutter bears the war-
ning symbol on page 9, the circular saw blade
must not be used. Using the circular saw blade
with brush cutters bearing this symbol puts the
operator at risk of serious injury or even death.
LINE HEAD ASSEMBLY
With ring nut A already fitted onto the head shaft,
turn the line head anticlockwise (the threading is
left-handed) (Fig. 9). If the Tap & Go head is fitted,
a protective plate has to be inserted between the
head and the ring nut. The plate must be fitted with
the flat part against the plastic head. The final
34
GB 
						

							safety measure involves blocking the shaft rotation:
fit the torx key (or a steel rod) into the hole (Fig. 9),
turn the tool slowly until the key goes into the hole
of the inner ring nut, which will stop the tool rota-
ting. Tighten the head and remove the key from the
hole.
HOW TO WEAR THE  STRAPS 
For Monobrush cutters with a single strap: pass
the strap over the left shoulder so that it runs from
top left to bottom right (Fig. 10A).
For Monobrush cutters with double strap and for
Duplexmodels: wear the belt with the padded part
and the brush cutter attachment on the right side.
The release has to be on the front while the straps
should cross on the operator’s back (Fig. 10B).
Arrange the belts so that the load is evenly distri-
buted on the shoulders.
For the Flexbrush cutters: wear the straps as you
would a normal backpack and fasten the belt
around the waist.
Arrange the belts so that the load is evenly distri-
buted on the shoulders and adjust the waist. If the
shoulder-mounted model is used, put on the back-
pack and connect the elastic strap to flange ‘a’in
Fig. 4.
In order to work more efficiently and safely, adjust
the straps according to your height and build.
WARNING    Always check the rapid release
system. It must be used in emergencies when the
operator has to get rid of the machine and out of
the straps quickly.
PREPARATION FOR USE
In order to use the brush cutter, clothes have to be
worn that protect against objects thrown up by the
tool (e.g. stones). It is necessary to wear safety
shoes with a slip-proof sole, gloves, safety gog-
gles(the visor is on its own does not protect the
eyes sufficiently),clothes that are not baggy.Do
not wear loose-fitting clothes, scarves, ties, jewel-
lery or other dangling objects that could get caught
on branches. Long hair must be tied up and cove-
red.
Ear protectionmust also be worn, e.g. earmuffs.
A safety helmetmust be worn while pruning,
chopping down trees, brush cutting or any other
work in places where falling objects are a danger.
WARNING    Read theSafety measureschapter
of this manual very carefully.
MACHINE INSPECTION 
Check that every screw is tightly fastened and that
the mechanical parts are sufficiently lubricated.
Check the blade, ensure it is sharp and that it is not
damaged in any way. Check that the blade disk
guard is in place. Check that the air filter is clean.
Dirty air filters may jeopardise performance.
REFILLING WITH  FUEL 
USE A MIXTURE OF PETROL AND SPECIAL
HIGH-QUALITY OIL (2%) FOR 2-STROKE ENGI-
NES.
PETROL - OIL PERCENTAGE 50:1
= 2% oil
To prepare the mixture, always use a clean contai-
ner that is suitable for storing petrol.
The petrol and the oil have to be mixed well. To
achieve a good mixture, proceed as follows: pour
half the petrol into a suitable container, then add all
the oil needed to make the required amount of 2-
stroke. Shake the container well to mix. Add the
remaining petrol and mix well by shaking the con-
tainer vigorously.
WARNING
By refuelling, before starting up the engine,
press 4-5 times the PRIMER, situated on the
carburettor.
REFILLING THE  FUEL TANK 
WARNING   Pressure may increase in reci-
pients containing petrol because of the envi-
ronment temperature.
Open the lid carefully to avoid it flying off. Store
the fuel in a cool place and keep it out of the
sun.
PRECAUTION
Position the machine with the tank lid facing
upwards. To make things easier, place the machine
in the position shown in Fig. 11.
Clean the tank lid and the surrounding area to pre-
vent foreign bodies entering the tank.
Fill the tank with petrol, using a suitable container
that prevents accidental fuel spillage.
Make sure that the machine is in a stable position
to prevent it being knocked over.
35
GB 
						

							WARNING
–Petrol is highly inflammableand in cer-
tain conditions explosive.
–Refill the tank in a well ventilated area
with the motor switched off. Do not
smoke, do not light flames or make
sparksin the environment either where
the motor is being refilled or in the fuel sto-
rage area.
–Do not overfill the tank(there should not
be any fuel in the neck of the tank). After
refilling the tank, ensure that the lid is
oncorrectly and safely.
–Take care not to spill any fuelwhile filling
the tank. Spilt fuel and its vapours may
catch light. If any fuel has been spilt, make
sure the area is dry before the motor is
started up.
–Avoid prolonged skin contact with the
fuel and breathing the vapours.
–Keep the fuel out of the reach of chil-
dren.
START UP
Before starting up the machine, ensure that no-one
and nothing are within the start up radius around
the machine, as they may be in danger.
WARNING   To prevent the throttle starting acci-
dentally, the throttle lever is fitted with a safety
switch: the throttle lever will only work when the
safety lever on the opposite side to the grip is pres-
sed down.Before starting the machine, always
ensure that that safety lever works.
Start up the machine on a flat and stable surface.
–Set the red switch on the front of the throttle
lever to START, i.e. the opposite of
STOP (Fig. 12 A, B, C).
–Set starter ‘a’in Fig. 13 to CLOSE, i.e.
towards the opposite side of the motor.
–Press the plastic dome CHOKE located on
the lower part of the carburettor several
times for an injection of fresh petrol (Fig. 14).
–If the machine has a decompressor (D in
Fig.14), press it so that the motor starts up
more easily. At the first bursts, the decom-
pressor closes and returns the button to its
original position. Press it back down if the
motor has to be started up again.
–Place one hand on the motor and push
downwards, with the other gently pull the
start up handle until there is some resi-
stance.–Then pull vigorously until the motor starts
(Fig. 15).
–When the motor gives its first bursts, or
starts up, set starter ‘a’in Fig. 13 to the
position opposite to CLOSE.
Always pull the start up handle rapidly.
A slow pull may not cause a spark and conse-
quently not start up the machine.
If the motor does not start or does not reach stan-
dard running speed, read the Troubleshooting
chapter at the end of the manual.
PRECAUTION
Do not pull the start up handle to the full extent of
the cord.
Do not let go of the start up handle suddenly.
Release it slowly so as not to damage the start up
unit.
Do not place your foot or knee on the drive pipe to
keep the machine still: the pipe may bend, thus
making the machine unusable.
WARNING   When the machine starts up, the
cutting tool will start turning immediately.Bring
the machine to minimum by pressing and then
freeing the throttle lever.
Check that the cutting tool stops turning when
the machine is at minimum.
STARTING WHEN  HOT 
The start up procedure for when the machine is hot
is the same as when it is cold, except that there is
no need to have the starter in the CLOSE posi-
tion.
STOPPING THE  MOTOR 
Bring the motor to its minimum rpm. Move the red
STOP switch located on the top part of the throttle
lever to the STOP position.
ADJUSTING THE  CARBURETTOR 
The carburettor on all the machines is set by the
manufacturer.
The machines are set individually.
Check that the air filter is clean and fitted correctly.
The adjusting screw marked MIN (Fig. 13) is set
in such a way that the tool does not turn when the
motor is at minimum. If this does not happen, turn
the screw anticlockwise until the tool stops turning
36
GB 
						

							when it is at minimum running speed. The motor
should turn over regularly at this speed.
If the carburettor has to be adjusted again, we
recommend you contact your reseller or an
authorised service centre.
BRUSH CUTTER USE
WARNING   Read the Safety measures chapter
of this manual very carefully.
METAL DISKS
The 4-pointed disks are suitable for cutting resi-
stant grass over wide areas. To cut grass, use the
brush cutter as you would a lawnmower: cut the
grass by moving the brush cutter from right to left,
then bring it back to the right, keeping it out of the
vegetation, and so on. Mow the grass with circular
sweeping movements of about 60°- 90°(Fig. 16).
The 3-pointed disk is suitable for cutting branches
and small trees with a diameter of 2 cm.
In this case, start cutting the vegetation from above
and bring the cutting head downwards in order to
cut the branches into little pieces (Fig. 17)
WARNING   Using metal tools runs the risk of
recoil when the equipment comes into contact
with solid objects (trunks, branches, stones). If
the equipment does bounce back, it will be dif-
ficult to control and may seriously injure the
operator and damage the machine.
CIRCULAR SAW BLADE 
WARNING   The circular saw blade can only be
used on Duplex brush cutters which do not
bear the warning symbol shown on page 9 and
are fitted with suitable guards. Using a circular
saw blade with brush cutters that bear this war-
ning symbol and/or without suitable guards
exposes the operator to the risk of serious
injury and even death.
The circular saw blade is suitable for cutting resi-
stant hedges, shrubs and small trees with trunks
that do not exceed 6 cm in diameter.
The blade must always be sharp. This increases
the cutting speed and reduces the risk of the blade
stopping.
When working out which way a tree will fall, also
take the wind direction into account.
We do not recommend you use the right-hand area
of the blade (white area in Fig. 18): using this area
runs a high risk of recoil and the blade stopping.When the blade is brought closer to the trunk to be
cut, the motor must be running at full speed.
To obtain a good result when cutting down small
trees, the cut must be made with a rapid sweeping
movement towards the branch or the trunk to be
cut (Fig. 19).
WARNING   Using metal tools runs the risk of
recoil when the equipment comes into contact with
solid objects (trunks, branches, stones). If the
equipment does bounce back, it will be difficult to
control and may seriously injure the operator and
damage the machine. Never bring the blade into
contact with the ground.
LINE HEAD
To cut grass, use the brush cutter as you would a
lawnmower: cut the grass by moving the brush cut-
ter from right to left, then bring it back to the right,
keeping it out of the vegetation, and so on. Proceed
with circular sweeping movements of 60°- 90°(Fig.
20).
The line head must be held just above the ground.
Never press the rotating line against the ground.
Do not force the line against hard objects (stones,
cement, trees etc.), as this will wear the line down
for no reason.
The line bends on contact with obstacles, but may
damage young plants or plants with thin stems.
To work efficiently, the line must protrude from the
head by approximately 12 cm. If the line is too long,
it should be cut with the line-cutting blade.
If the line is too short, it should be lengthened.
1) If the manual headis fitted, loosen the bottom
knob by about 3 turns in a clockwise direction,
pull the two ends of the line until you have the
required length. Refasten the knob by turning it
in an anticlockwise direction. If too much line is
unwound, it is possible to rewind it: loosen the
knob and block the head body, then turn the bot-
tom lid in an anticlockwise direction.
2) If a semi-automatichead is fitted:
remove the lower part of the line head and turn
it one notch anticlockwise (watching the bottom
part of the head).
Then pull the ends of the line out.
Repeat the operation if necessary.
3) If theTap & Go headis fitted, gently press the
line head against the ground when it is at maxi-
mum speed and the line comes out automati-
cally. Repeat the operation until you have the
correct length.
WARNING  When you use the line head, the
guard has to be fitted with a line-cutting blade.
37
GB 
						

							Fit the bottom band with knife to the guard.Do not
use very worn heads: some components may
come off and put the operator in danger.
REPLACING THE  GRASS-CUTTING
HEAD LINE
To replace the line, follow the instructions enclo-
sed with the head being used.
WARNING   Never replace the nylon line with a
line made of any other material (e.g. iron).
PRECAUTION
Do not use line with a diameter greater than 3 mm.
Line that is too thick may impede the performance
of the motor by generating an excessive load.
Line with a diameter lower than 2.4 mm produces
mediocre results and wears out rapidly.
The flexibility of the line will improve if it is left in
water 1 - 2 days before it is used..
SHARPENING 3- OR 4-POINTED DISKS 
Sharpen with a suitable flat file (Fig. 21).
Figure 22A and 22B show:
A ) The wrong way to sharpen 
B) Sharpening limits 
C) Wrong or unequal angles 
All the points have to be sharpened in the same
way.
Both sides of the 3- and 4-pointed disks can be
used. When one side is worn, the disk can be tur-
ned over in order to use the other side.WARNING   Remove the spark plug cap before
sharpening.
Put on a pair of glovesbefore sharpening to avoid
cutting yourself. It is important to ensure the machi-
ne is correctly balanced even after sharpening.
The metal disk must never be repaired:the disk
must be replacedas soon as you notice any brea-
kage or if the sharpening limit has been exceeded.
SHARPENING THE  SAW  DISK 
Check that the blade setting is about 1 mm.
If necessary, adjust it with pliers (Fig. 23).
Sharpen the blade with a 5.5 mm diameter round
file. Approach the blade with the file as per Fig. 24.
Sharpen the left tooth and the right tooth alterna-
tely. Sharpen all the teeth equally.
If the blade is damaged, the top part of the tooth
may also have to be sharpened. Use a suitable flat
file and sharpen all the teeth equally (Fig. 25).
The profile of the tooth must not be changed.
WARNINGRemove the spark plug cap before
sharpening.
Put on a pair of gloves before sharpening to avoid
cutting yourself on the blade.
The circular saw disk must never be repaired: the
disk must be replaced as soon as you notice any
breakage or if the sharpening limit has been excee-
ded.
If the blade is not sharpened properly, it may cause
the machine to recoil. Furthermore, 
an insufficient setting will also cause recoil.
It is important to ensure the machine is correctly
balanced even after sharpening.
38
GB 
						

							39
ELEMENTPROCEDUREFREQUENCY
MAINTENANCE AND CHECK
Machine complete Visual check
Clean
Throttle lever Operational check
Operational check on the safety
lever. If it is not pressed, then the
throttle command will not work.
Stop buttonOperational check
CarburettorCheck that the tool does not turn
with the motor at minimum rpm
Clean
Adjust
Carburettor area Clean
Cutting tool
Visual check (breakage, cracks,
poor alignment, eccentricity etc.)
Check tightness
Tank Check for
fuel leaks
Clean
Head with gears area
Clean, remove any grass
GuardVisual check
Head with gearsLubricate with lithium-based grea-
se. Remove the screw and fill with
grease, turning the head manually
until the grease comes out (Fig.
26). Refasten the screw.
Nuts, screws, bolts (not adjusters)Check tightness
Air filterCheck
Clean with brush, hot water and
soap or another non-flammable
liquid detergent. Leave to dry and
then refit (Fig. 27).
Air ventsClean
Cylinder finsClean
Spark plug areaClean
Spark plugCheck and clean the spark plug of
any excess carbon (Fig. 28).
Measure the distance between elec-
trodes and replace if necessary.
Cables and connections Check
Springs and clutch pads
Check and replace if necessary
Petrol filterCheck and replace if necessary
(Fig. 29)
For flex brush cutters onlyRemove the flexible shaft from the rubber
sleeve and lubricate the shaft thoroughly
with lithium-based grease (Fig. 30)
At authorised
workshops
if necessary Every 30 hours Every 15 hours
Daily check
After filling
Before starting work
WARNING   Read the Safety measureschapter of this manual very carefully.
Before carrying out any repairs or maintenance work, remove the spark plug cap.
GB 
						

							EXTRAORDINARY MAINTENANCE
Contact your local authorised service centre for
any procedures not considered to be ordinary nain-
tenance.
Repairs carried out by unauthorised service
centres will invalidate the warrantee.
Use original spare parts only.
END OF SEASON STORAGE 
When the machine is not required for long periods
at the end of the season, follow the instructions
below in order to store the machine in the best con-
ditions so that it will resume work easily and effi-
ciently.
–Completely drain the 2-stroke tank, close the
starter and start the motor in order to use up
any 2-stroke that might have been left in the
carburettor or in the fuel supply system.
–Remove the spark plug and put several drops
of oil into the cylinder through the spark plughole. Pull the start cable two or three times so
that a protective film forms between the piston
and the cylinder.
–Clean the 2-stroke suction filter and the supply
pipe with petrol (Fig. 29).
–Clean the entire machine with a brush and
petrol, dry it thoroughly and lightly grease it
with an oil-soaked cloth.
Put it back into its original packaging.
WARNING Read the Safety measureson stora-
ge in the first chapter very carefully.
ALL OUR MACHINES ARE EXCELLENT QUA-
LITY. THEY ARE PERFECTLY TUNED AND ARE
DESIGNED SO THAT THE OPERATOR CAN
WORK IN MAXIMUM SAFETY.
The manufacturer reserves the right to change the
technical specifications described in this manual
without any prior notice.
40
GB