Mac allister MBCP254 DUPLEX User manual

Brushcutter
MBCP254
OPERATOR’S MANUAL
WARNING: read thoroughly the instruction booklet
before using this machine
DUPLEX

ENGLISH - EN
Original Instructions ....................................................................

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STOP
START
RUN
STOP
START
RUN
CHOKE
RUN
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1101
4131 15

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0,5 mm
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3
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30°
A
B
C
30°
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20 21
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1
Ø 2,4 mm
2 x 3,0 m (118 in.)
4
6
120 mm
(4,75 in.)
7

iv

EN
INTRODUCTION 1
Dear Customer,
thank you or choosing one o our products. We hope that you will be completely satis ied with this machine
and that it ully meets your expectations. This manual has been compiled in order to provide you with all
the in ormation you need to get acquainted with the machine and use it sa ely and e iciently. Don’t orget
that it is an integral part o the machine, so keep it handy so that it can be consulted when necessary, and
pass it on to a urther user i you resell or loan the machine.
Your new machine has been designed and manu actured in pursuance with current regulations, and is sa e
and reliable i used in compliance with the instructions provided in this manual (proper use). Using the ma-
chine in any other way, or non-compliance with the sa ety speci ications relative to use, maintenance and
repair is considered "improper use" which will invalidate the warranty, relieve the manu acturer rom all li-
abilities, and the user will consequently be liable or all and any damage or injury to himsel or others.
Since we regular improve our products, you may ind slight di erences between your machine and the de-
scriptions contained in this manual. Modi ications can be made to the machine without notice and without
the obligation to update the manual, although the essential sa ety and unction characteristics will remain
unaltered. In case o any doubts, please contact your dealer. And now enjoy your work!
TABLE OF CONTENTS
1. Identi ication o the main components ....................................... 2
2. Symbols ..................................................................................... 3
3. Sa ety requirements ................................................................... 4
4. Machine assembly ..................................................................... 6
5. Preparing to work ....................................................................... 7
6. How to start - Use - Stop the engine .......................................... 8
7. Using the machine ................................................................... 10
8. Maintenance and storage ........................................................ 12
9. Troubleshooting ....................................................................... 14
10. Technical data ......................................................................... 14
11. Accessories ............................................................................. 16

EN
MAIN COMPONENTS
1. Power unit
2. Drive tube
3. Cutting device
a. Blade with 3 points
b. Cutting line head
4. Cutting device guard
5. Front handgrip
6. Guard
7. Handlebar
8. Rear handgrip
9. Connection point
(of the webbing)
10. Identification plate
11. Webbing
a. single belt
b. double belt
12. Angle transmission
13. Blade protection (for transport)
14. Spark plug
CONTROLS AND FILLING POINTS
21. Engine stop switch
22. Throttle trigger
23. Throttle trigger lockout
24. Starter
25. Choke
26. Primer
31. Fuel tank cap
2IDENTIFICATION OF MAIN COMPONENTS
1. IDENTIFICATION OF MAIN COMPONENTS
1“DUPLEX”
2412
13
3a
7
9
10
11a
11b
3b
21
23
22
21
22
1
3
“MONO”
23
6 5
8
14
25
26
31
24
IDENTIFICATION PLATE
10.1) Conformity marking in accor-
dance with Directive 2006/42/EC
10.2) Name and address of the manufacturer
10.3) Acoustic output level LWA in accordance
with directive 2000/14/EC
10.4) Machine model
10.5) Serial number
10.6) Year of manufacture
10.7) Article Code
10.8) Emission number
Petrol Brushcutter and Grass Trimmer
10.1 10.2 10.310.4
10.6 10.5 10.710.8
10.9) Displacement / Power / RPM
10.10) Cutting width
10.9
10.10

EN
1) Warning! Danger. The failure to use this machi-
ne correctly can be hazardous for oneself and oth-
ers.
2) Read the instruction manual before using the
machine.
3) If you are using the machine every day in nor-
mal conditions, you can be exposed to a noise le-
vel of 85 dB (A) or higher. Wear ear protectors,
safety goggles and a protective helmet.
4) Wear gloves and protective footwear!
5) Danger of flying objects! Keep any people or
pets at least 15 m away when using the machine!
11) Fuel tank
12) Engine stop switch
positions
a= stop
b= run
c= start
13) Choke
14) Primer
6) Maximum cutting device speed. Only use sui-
table cutting devices.
7) Do not use the circular saw blade. Danger:
Using the circu ar saw b ade with machines
marked with this symbo exposes the user to
the danger of very serious or even fata in-
juries.
8) Warning! Petrol is flammable. Allow engine to
cool at least 2 minutes before refuelling.
9) Warning! Keep away from hot surfaces.
SYMBOLS 3
EXPLANATORY SYMBOLS
ON THE MACHINE (if present)
2. SYMBOLS
21) Cutting device
with ade uate
protection
22) Cutting device
rotation direction
EXPLANATORY SYMBOLS
ON THE PROTECTION DEVICES (if present)
1 2 3 4
5 6 7 8 9
a
11
12
13
14
c
b
21
22

EN
A) TRAINING
1) R ad th instructions car fully. Become ac-
quainted with the controls and the proper use o the
machine. Learn how to stop the engine quickly.
2) Only us th machin for th purpos for
which it was d sign d, namely
–cutting grass and non-woody v g tation, u-
sing a nylon line (e.g. around the edges o lawns,
lowerbeds, walls, ences and small grassy areas
to tidy up the cutting done using a mower);
–cutting tall grass, dry branch s, twigs and
woody shrubs o up to 2 cm diameter, with the
help o metal or plastic blades.
Any other use may be dangerous and damage the
machine.
Examples o improper use may include, but are not
limited to:
– use the machine or sweeping;
– trimming hedges or other jobs in which the cutting
device is not used on ground level;
– pruning trees;
– using the machine with the cutting device above
the operator's belt level;
– using the machine or cutting non-plant material;
– use o the machine by more than one person.
3) Never allow children or persons un amiliar with
these instructions to use the machine. Local re-
gulations can restrict the age o the user.
4) The machine must never be used by more than
one person.
5) N v r us th machin :
– when people, especially children or pets are in the
vicinity;
– i the user is tired or unwell, or has taken medicine,
drugs, alcohol or any substances which may slow
his re lexes and compromise his judgement;
– i the user is not capable o holding the machine
irmly with two hands and/or remaining standing
on the ground whilst working.
6) Keep in mind that the operator or user is respon-
sible or accidents or hazards occurring to other
people or their property.
B) PREPARATION
1) Always wear adequate clothing which does not
hamper movements when using the machine.
– Always wear slim- itting protective clothing, itted
with shear-proo protection devices.
– Always wear a helmet, protective gloves, eye-
goggles, a hal -mask respirator and sa ety anti-
shear boots with non-slip soles.
– Always wear ear and hearing protection devices.
– Never wear scarves, shirts, necklaces, or any
hanging or lapping accessory that could catch in
the machine or in any objects or materials in the
work area.
– Tie your hair back i it is long.
2) WARNING: DANGER! P trol is highly flam-
mabl :
– keep the uel in containers which have been spe-
ci ically manu actured and homologated or such
use;
– never smoke when handling uel;
– slowly open the uel tank to allow the pressure in-
side to decrease gradually;
– top up the tank with uel in the open air, using a
unnel;
– add uel be ore starting the engine. Never remo-
ve the uel tank cap or add uel while the engine
is running or when the engine is hot;
– i you have spilt some uel, do not attempt to start
the engine but move the machine away rom the
area o spillage and avoid creating any source o
ignition until the uel has evaporated and uel
vapours have dissipated;
– immediately clean up all traces o uel spilt on the
machine or on the ground;
– never start the machine in the same place you re-
illed it with uel;
– make sure your clothing does not come into con-
tact with the uel, on the contrary, change your
clothes be ore starting the engine;
– always put the tank and uel container caps back
on and tighten well.
3) Replace aulty or damaged silencers.
4) B for using th machin , check its general
condition and in particular:
– the throttle trigger and the sa ety lever must mo-
ve reely, they must not need orcing and should
return automatically and rapidly back to the neu-
tral position;
– the throttle trigger must remain locked until the
sa ety lever is pressed;
– the engine stop switch must easily move rom
one position to the other;
– the electric cables and in particular the spark plug
cable must be in per ect condition to avoid the
generation o any sparks, and the cap must be
correctly itted on the spark plug;
– the machine handgrips and protection devices
must be clean and dry and well astened to the
machine;
– the cutting devices and guards must be undama-
ged.
5) Check the correct position o the handgrips and
the connection point o the webbing, and the proper
balance o the machine.
6) Be ore starting work make sure that the guards
are suitable or the cutting tool being used and are
itted correctly.
7) Thoroughly inspect the whole work area and re-
move anything that could be thrown up by the ma-
chine or damage the cutting group or engine (stones,
branches, iron wire, bones, etc.).
C) OPERATION
1) Do not start the engine in a con ined space where
dangerous carbon monoxide umes can collect.
2) Mow only in daylight or good arti icial light.
4SAFETY REQUIREMENTS
3. SAFETY REQUIREMENTS

3) Tak on a firm and w ll-balanc d position:
–where possible, avoid working on wet, slippery
ground or in any case on uneven or steep ground
that does not guarantee stability or the operator;
– never run, but walk care ully paying attention to
the lay o the land and any eventual obstacles;
– assess the potential risks o the ground to be
mown and take all necessary precautions to en-
sure your own sa ety, especially on slopes or on
bumpy, slippery or unstable ground;
– work along the contour on slopes, never when
walking up or down and always keep downhill o
the cutter.
4) Make sure the machine is securely locked when
you start the engine:
– start the motor in an area at least 3 metres rom
where you re uelled;
– check that there is nobody within at least 15 me-
tres o the machine’s range o action or at least 30
metres or heavier mowing;
– do not direct the silencer and there ore the ex-
haust umes towards in lammable materials.
5) Do not chang th ngin gov rnor s ttings
or overspeed the engine.
6) Do not strain the machine too much and do not
use a small machine or heavy-duty works. I you use
the right machine, you will reduce the risk o hazards
and improve the quality o your work.
7) Check that when the machine is running idle,
there is no movement o the cutting device and, a -
ter pressing the throttle trigger, the engine quickly re-
turns to minimum speed.
8) Ensure that the blade does not come into violent
contact with oreign bodies and beware o the pos-
sibility o material being thrown up by the blades.
9) Always keep the machine connected to the web-
bing when working.
10) Stop th ngin :
– whenever you leave the machine unattended.
– be ore re uelling.
– during movements between work areas.
11) Stop th ngin and disconn ct th spark
plug cabl :
– be ore cleaning, checking or working on the ma-
chine;
– a ter striking a oreign object. Inspect the machine
or any damage and make repairs be ore restart-
ing it again;
– i the machine starts to vibrate abnormally: ind the
cause o the vibration immediately and have it in-
spected at a Specialised Centre.
– when the machine is not in use.
D) MAINTENANCE AND STORAGE
1) Keep all nuts, bolts and screws tight to be sure
the equipment is in sa e working condition. Routin
maint nanc is ss ntial for saf ty and for
maintaining a high p rformanc l v l.
2) Do not store the machine with uel in the tank in
an area where the uel vapours could reach an open
lame, a spark or a strong heat source.
3) Allow the engine to cool be ore storing in any en-
closure.
4) To reduce ire hazards, keep the engine, ex-
haust silencer and uel storage area ree rom saw-
dust, branches, leaves, or excessive grease; never
leave containers with the cut debris inside the stor-
age area.
5) I the uel tank has to be emptied, this should be
done outdoors once the engine has cooled down.
6) Always wear protective gloves when handling
the cutting device.
7) For saf ty r asons, n v r us th machin
with worn or damag d parts. Damag d parts
ar to b r plac d and n v r r pair d. Only
us original spar parts. Parts that are not o the
same quality can seriously damage the equipment
and compromise sa ety. The cutting tools must al-
ways bear the manu acturer’s trademark as well as
a re erence to the maximum working speed.
8) Be ore putting the machine away, check you
have removed wrenches or tools used or mainte-
nance.
9) Store the machine out o the reach o children!
E) TRANSPORTATION AND HANDLING
1) Whenever the machine is to be handled or trans-
ported you must:
– turn o the engine, wait or the cutting device to
stop and disconnect the spark plug cap;
– it the cutting device guard;
– only hold the machine using the handgrips and
position the cutting device in the opposite direc-
tion to that used during operation.
2) When using a vehicle to transport the machine,
position it so that it can cause no danger to persons
and asten it irmly in place to avoid it rom tipping
over, which may cause damage or uel spillage.
F) HOW TO READ THE MANUAL
Certain paragraphs in the manual contain particularly
signi icant in ormation and are marked with various
levels o highlighting with the ollowing meaning:
or
These give details or f rther
information on what has already been said, in the
aim to prevent damage to the machine.
Non-observance will result
in the ris of injury to oneself or others.
Non-observance will result
in the ris of serious injury or death to oneself
or others.
DANGER!
WARNING!
IMPORTANT
NOTE
SAFETY REQUIREMENTS 5
EN

The machine is s pplied with
some of the components disassembled and the
f el tank empty.
Always wear strong wor
gloves to handle the cutting devices. Mount
the components very carefully so as not to
impair the safety and efficiency of the ma-
chine. If in doubt, contact your dealer.
1. COMPLETING THE MACHINE
1a. “MONO” mod ls (Fig. 1)
The purpose of the spacer
(1) is to ensure a minimum distance between
the rear handgrip and the front one, for safety
reasons. This spacer must always be fitted
and must not be modified in any way.
– In ront o the spacer (1), position the upper part
(2) with the ront grip’s guard.
– Fasten the lower cap (4) to the upper part (2) with
screws (5).
– Be ore tightening the screws (4), align the hand-
grip correctly with respect to the drive tube.
– Fully tighten the screws (4).
1b. “DUPLEX” mod ls (Fig. 2)
– Loosen the screws (5) and remove the cap (4)
rom the support (2).
– Put the handlebar (1) into the seating in the sup-
port (2), located on the drive tube (3), making
sure that the controls are on the right.
– Fit the cap (4), ully tightening the screws (5).
– Fasten the casing (6) o the controls to its cable
astener (7).
2. MOUNTING THE ROD
(Mod ls with s parat rod – Fig. 3)
– Pull out the stop pin (5) and push the lower part
o the rod (4) right down until the stop pin (5) slots
into the hole (6) in the rod. This is easier to do i
you rotate the bottom o the rod (4) slightly in
WARNING!
WARNING!
IMPORTANT both directions. The pin (5) is in place when it is
completely lodged in the hole.
– Lastly, tighten the knob (7) securely.
3. FITTING THE GUARDS
Each cutting device is
provided with a specific guard. Never use
guards other than those indicated for each
cutting device.
• 3 point blad (Fig. 4)
Wear protective gloves
and fit the blade guard.
– Remove the blade (i itted) as described in para-
graph 4.
– The guard (1) is ixed to the angle transmission
(2) by our screws (3).
• Cutting lin h ad (Fig. 5)
When using the cutting
line head the additional guard, with line cutting
nife, must always be fitted.
– Remove the blade (i itted) as described in para-
graph 4.
– The guard (1) is ixed to the angle transmission
(2) by our screws (3).
– Assemble the additional guard (4) astening it
into place on the guard (1).
4. REMOVING AND REFITTING
THE CUTTING DEVICES
Use only original cutting
devices or ones homologated by the Manu-
facturer.
• 3 point blad (Fig. 6)
Wear protective gloves
and fit the blade guard.
WARNING!
WARNING!
WARNING!
WARNING!
WARNING!
6MACHINE ASSEMBLY
EN
4. MACHINE ASSEMBLY

The fastening n t (5) has a
left-hand thread and so m st be nscrewed in a
clockwise direction and screwed p anticlockwise.
– Insert the wrench supplied (2) into the speci ic
hole in the angle transmission (3) and rotate the
blade (1) by hand until the wrench enters the in-
ner hole, blocking rotation.
– Remove the split pin (4) and unscrew the nut (5)
in a clockwise direction.
– Pull out the washer (6) and the outer ring-nut (7)
and remove the blade (1).
When mounting,
– Ensure that the grooves in the inner ring-nut (8)
match up per ectly with the angle transmission
(3).
– Fit the blade (1) and outer ring-nut (7).
– Re it the washer (6) and the nut (5), ully tighte-
ning it in an anticlockwise direction.
– Reposition the split pin (4) and re old the two
ends.
– Remove the wrench (2) to restore blade rotation.
NOTE • Cutting lin h ad (Fig. 7)
The c tting line head has a
left-hand thread and so m st be nscrewed in a
clockwise direction and screwed p anticlockwise.
– Insert the wrench supplied (2) into the speci ic
hole in the angle transmission (3) and rotate the
cutting line head (1) by hand until the wrench en-
ters the inner hole, blocking rotation.
– Remove the cutting line head (1) unscrewing it in
a clockwis dir ction.
When mounting,
– Ensure that the grooves in the inner ring-nut (4)
match up per ectly with the angle tranmission (3).
– Fit the cutting line head (1) screwing it up in an
anticlockwis dir ction.
– Remove the wrench (2) to restore sha t rotation.
NOTE
MACHINE ASSEMBLY / PREPARING TO WORK 7
EN
CHECKING THE MACHINE
Be ore starting work please:
– check that all the screws on the machine and the
cutting device are tightly astened;
– check that the cutting device is undamaged and
that the 3-point metal blades (i itted) are prop-
erly sharpened;
– check that the air ilter is clean;
– check that the protection devices are well as-
tened and working e iciently;
– check the handgrips are well astened.
PREPARING THE FUEL
This machine is itted with a two-stroke engine
which requires a mixture o petrol and lubricating
oil.
Using petrol alone will da-
mage the motor and will ca se for invalidation of
the warranty.
Only se q ality f els and
oils to maintain high performance and g arantee
the d ration of the mechanical parts over time.
IMPORTANT
IMPORTANT
• P trol charact ristics
Only use unleaded petrol with a uel grade o at
least 90 N.O.
Unleaded petrol tends to cre-
ate deposits in the container if preserved for more
than 2 months. Always se fresh petrol!
• Oil charact ristics
Only use top quality synthetic oil speci ically or
two-stroke engines.
Your dealer can provide you with oils which have
been speci ically developed or this type o engine,
and which are capable o guaranteeing a high level
o protection.
The use o these oils makes it possible to prepare
a 2% mixture, consisting in 1 part oil to 50 parts
petrol.
• Pr paration and pr s rvation of th fu l
mixtur
Petrol and the fuel mix-
ture are highly inflammable!
DANGER!
IMPORTANT
5. PREPARING TO WORK

Periodically clean the petrol
and f el mixt re containers to remove any event al
deposits.
REFUELLING
Never smo e whilst refu-
elling and avoid inhaling the petrol fumes.
Carefully open the tan
top as pressure could have formed inside.
Be ore re uelling:
– Shake the uel mixture container well.
– Place the machine on a lat stable sur ace, with
the uel tank cap acing upwards.
– Clean the uel tank cap and the surrounding area
to avoid any dirt rom entering the tank during re-
illing.
– Care ully open the uel tank cap to allow the
pressure inside to decrease gradually. Use a
unnel to re ill and avoid illing the tank to the
brim.
Always close the fuel tan
cap firmly.
Immediately clean all tra-
ces of fuel which may have dripped on the
machine or the ground and do not start the en-
gine until the petrol fumes have dissipated.
IMPORTANT
WARNING!
WARNING!
DANGER!
WARNING!
– Keep the petrol and fuel mixture in homolog-
ated fuel containers, in safe place, away
from any flames or heat sources.
– Never leave the containers within the reach
of children.
– Never smo e whilst preparing the mixture
and avoid inhaling the petrol fumes.
The chart indicates the amount o petrol and oil to
use to prepare the uel mixture according to the
type o oil used.
To prepare the uel mixture:
– Place about hal the amount o petrol in a homo-
logated tank.
– Add all the oil, according to the chart.
– Add the rest o the petrol.
– Close the top and shake well.
The f el mixt re tends to
age. Do not prepare excessive amo nts of the f el
mixt re to avoid deposits from forming.
Keep the petrol and f el mix-
t re containers separate and easily identifiable to
avoid the mistake of sing one in place of the other.
IMPORTANT
IMPORTANT
8PREPARING TO WORK / HOW TO START - USE - STOP THE ENGINE
EN
• Cold starting
A “cold” start of the engine
means starting it after at least 5 min tes from when
it was switched off or after ref elling.
To start the engine (Fig. 8):
1. Press the lock lever (3), activate the throttle (2)
and holding them in this position, move the
switch (1) to the «START» position, then re-
lease the lever (3) and the throttle (2).
2. Operate the starter, turning lever (5) to
«CHOKE».
NOTE
STARTING THE ENGINE
The engine must be star-
ted in an area at least 3 metres from where you
refilled the fuel tan .
Be ore starting the engine:
– Place the machine irmly on the ground.
– Remove the guard rom the blade (i used).
– Make sure the blade (i used) is not touching the
ground or any other object.
WARNING!
6. HOW TO START - USE - STOP THE ENGINE
P trol Synth tic oil 2-strok
liters liters cm3
1 0.02 20
2 0.04 40
3 0.06 60
5 0.10 100
10 0.20 200

HOW TO START - USE - STOP THE ENGINE 9
EN
3. Press the primer device button (6) 3 or 4 times
to prime the carburettor.
4. Hold the machine irmly on the ground with one
hand on the power unit, in order not to lose
control o the machine during startup (Fig. 9).
To prevent distortions, the
drive t be m st not be sed as a s pport for the
hand or knee d ring start p.
5. Pull the starter rope slowly or 10 - 15 cm until
you eel some resistance, then tug it hard a ew
times until you hear the engine turn over.
To avoid breaking the starter
rope, do not p ll the whole length of it or let it slide
along the edge of the cable g ide hole. Release the
starter grad ally, to avoid letting it fly back ncon-
trollably.
6. Pull the starter rope again until the engine starts
as normal.
Starting the engine with
the cho e engaged causes the cutting device
to move, only stopping when the cho e is dis-
connected.
7. When the engine is started, disconnect the
starter by turning the lever (2) to «RUN».
8. Brie ly activate the throttle (2) to bring the engine
down to minimum, with the switch (1) which will
move automatically to the «RUN» position.
9. Let the engine run idle or at least 1 minute be-
ore using the machine.
If the starter rope is p lled
repeatedly with the choke on, it may flood the en-
gine and make starting diffic lt.
I you have looded the engine, remove the spark
plug and gently pull the handle on the starter rope
to eliminate any excess uel; then dry the spark plug
electrodes and replace it on the engine.
• Hot starting
When hot starting (immediately a ter stopping the
engine):
– Set the switch (1) to position «RUN», then ollow
points 4 - 5 - 6 – 9 in the previous procedure.
IMPORTANT
IMPORTANT
WARNING!
IMPORTANT
USE OF THE ENGINE (Fig. 8)
Cutting device speed is regulated by the throttle
trigger (2), located on the rear handgrip (4) or the
right handgrip (4a) o the handlebar.
The throttle trigger only works i the lockout (3) is
pressed at the same time.
The movement is transmitted rom the engine to the
drive sha t by a centri ugal mass clutch that pre-
vents the sha t rom moving when the engine is run-
ning at minimum speed.
Do not use the machine if
the cutting device moves when the engine is
running idle; in this case, contact you dealer.
The correct running speed will be achieved by
pressing the throttle trigger (2) as ar as possible.
Avoid sing the engine at f ll
power for the first 6-8 working ho rs.
STOPPING THE ENGINE (Fig. 8)
To stop the engine:
– Release the throttle trigger (2) and allow the en-
gine to run idle or a ew seconds.
– Set the switch (1) to «STOP».
When you have reduced
speed to a minimum, it will ta e a few sec-
onds for the cutting device to stop
WARNING!
WARNING!
IMPORTANT

EN
10 USING THE MACHINE
To r sp ct p opl and th nvironm nt:
– Try not to caus any disturbanc .
– Scrupulously comply with local r gulations
and provisions for th disposal of wast ma-
t rials aft r sawing.
– Scrupulously comply with local r gulations
and provisions for th disposal of oils, p trol,
damag d parts or any l m nts which hav a
strong impact on th nvironm nt.
Prolonged exposure to vi-
brations can cause injuries and neurovascular
disorders (also called “Renaud’s syndrome” or
“white hand”), especially to people suffering
from circulation disorders. The symptoms can re-
gard the hands, wrists and fingers and are shown
through loss of sensitivity, torpor, itching, pain
and discolouring of or structural changes to the
s in. These effects can be worsened by low am-
bient temperatures and/or by gripping the hand-
grips excessively tightly. If the symptoms oc-
cur, the length of time the machine is used must
be reduced and a doctor consulted.
This machine’s starter unit
generates an average sized electromagnetic
field, but it is not however possible to exclude the
possibility of interference on any active or pas-
sive medical devices that operators may be wear-
ing; this could be ris y for their health condi-
tions. All those using medical devices should
always consult their GP, or the device manufac-
turer, before using this machine.
Always wear suitable clo-
thing when using the machine. Your dealer can
provide you with all the information on the most
suitable accident-prevention devices to guaran-
tee your safety.
USING THE WEBBING (Fig. 10)
The machine must always
be used connected to the webbing worn cor-
rectly. Frequently chec the efficiency of the
quic release mechanism used to quic ly free
the machine from the belts in case of danger.
The webbing must be put on be ore connecting the
machine to the special coupling and the belts must be
adjusted to suit the operator’s height and stature.
DANGER!
WARNING!
WARNING!
WARNING!
I the machine has more than one coupling hole, use
the most avourable point or keeping the machine
balanced when working.
Always use webbing suited to the weight o the ma-
chine and the cutting device used
– the single or double belt models can be used for
machin s w ighing l ss than 7.5 kg fitt d with
th cutting lin h ad or 3-point blad s;
– the double belt model must be used for machin s
w ighing mor than 7.5 kg.
•Singl b lt “MONO” mod ls
The belt (1) must go over the le t shoulder towards the
right hip.
•Doubl b lt mod ls
The belt (2) must be worn with:
– the machine's support and snap-hook coupling on
the right side (2.1);
– the release in ront (2.2);
– the belts cross-over on the operator's back (2.3);
– the buckle properly astened on the le t side (2.4).
The belts must be tensioned so that the load is evenly
distributed on the shoulders.
USING THE MACHINE
When wor ing, the machine
must always be firmly held in both hands, eep-
ing the power unit on the right of the body and
the cutting group below the line of the belt.
Stop the engine immedi-
ately if the blade stops during sawing. Always be-
ware of a ic bac , which could occur if a blade
encounters a solid object (logs, roots, branches,
stones, etc.). Do not touch the ground with the
blade. Kic bac s cause blade recoils that are
difficult to control, so as to cause loss of control
of the machine, compromise operator safety and
cause damage to the machine itself.
Be ore tackling a mowing job or the irst time it is ad-
visable to gain the necessary amiliarity with the ma-
chine and the most suitable cutting techniques, ind-
ing out how to wear the webbing correctly, irmly
gripping the machine and making the movements re-
quired by the job.
WARNING!
WARNING!
7. USING THE MACHINE

EN
USING THE MACHINE 11
•Choosing th cutting d vic
Choose the most suitable cutting device or the job to
be done, according to these general indications:
–th 3-point blad is suitable or cutting brush-
wood and small shrubs up to 2 cm in diameter;
–th cutting lin h ad can eliminate tall grass and
non-woody vegetation near ences, walls, ounda-
tions, pavements, around trees, etc. or to com-
pletely clean a particular area o the garden;
WORKING TECHNIQUES
a) 3-point blad (Fig. 11)
Start cutting above the undergrowth and then move
down with the scything blade so as to cut the brush
into small pieces.
b) Cutting lin h ad
Use ONLY nylon lines. The
use of metal lines, plasticised metal lines and/or
lines not suitable for the head can cause serious
injuries and wounds.
During use it is advisable to stop the engine periodi-
cally and remove the weeds wound round the ma-
chine, so as to prevent the drive tube rom overheat-
ing due to the grass caught under the guard.
Remove the caught-up grass with a screwdriver to al-
low the rod to be properly cooled.
Do not use the machine for
sweeping, tilting the cutting line head. The power
of the engine could throw objects and small
stones 15 metres or more, causing damage and
injuries to people.
•Cutting in motion (Scything) (Fig. 13)
Proceed at a regular pace, with a circular motion sim-
ilar to a traditional scythe, without tilting the cutting line
head during the operation.
First try cutting at the right height in a small area, so
as to then achieve a uni orm cutting height keeping
the cutting line head at a constant distance rom the
ground.
For heavier cutting it can be use ul to tilt the cutting line
head by about 30°.
WARNING!
WARNING!
Do not wor in this way if
there is the possibility of causing objects to be
thrown, which could harm people and animals
and cause damage.
•Pr cision cutting (Trimming)
Keep the machine slightly tilted so that the lower part
o the cutting line head does not touch the ground and
the cutting line is at the required point, always keep-
ing the cutting device at a distance rom the operator.
• Cutting n ar f nc s/foundations (Fig. 14)
Slowly approach the cutting line head to ences,
posts, rocks, walls, etc. without hitting them hard.
I the line strikes a solid object it could break or be-
come worn; i it gets tangled in a ence it could break
abruptly.
In any case, cutting around pavements, oundations,
walls, etc. can cause greater wear than normal in the
line.
• Cutting round tr s (Fig. 15)
Walk round the tree rom le t to right, approaching the
trunks slowly so as not to strike the tree with the line
and keeping the cutting line head tilted orward
slightly.
Remember that the nylon line could lop or damage
small shrubs and that the impact o the nylon line
against the trunk o bushes or trees with so t bark
could seriously damage the plant.
•Adjusting lin l ngth wh n working (Fig. 16)
This machine is itted with a “Tap & Go” head.
To release more line, tap the cutting line head against
the round with the engine at top speed: the line will be
released automatically and the kni e cut o the excess
length.
END OF OPERATIONS
When you have inished your work:
– Switch o the engine as indicated above (Chap. 6).
– Wait or the cutting device to stop and it the blade
guard.
WARNING!

Correct maintenance is essential to maintain the
original e iciency and sa ety o the machine over
time.
During maintenance ope-
rations:
– Remove the spar plug cap.
– Wait until the engine is sufficiently cold.
– Use protective gloves when handling the
blades.
– Keep the blade protection device on, ex-
cept when intervening directly on the blade.
– Never dispose of oils, fuel or other polluting
materials in unauthorised places.
CYLINDER AND SILENCER
To reduce ire risks, periodically clean the cylinder
laps with compressed air and clear the silencer
area to get rid o sawdust, branches, leaves or
other debris.
STARTING SYSTEM
To avoid overheating and damage to the engine, al-
ways keep the cooling air vents clean and ree o
sawdust and debris.
The starter rope must be replaced as soon as it
shows signs o wear.
NUTS AND SCREWS
Periodically check that all the nuts and screws are
securely tightened and the handgrips are tightly
astened.
CLEANING THE AIR FILTER (Fig. 17)
Cleaning the air filter is es-
sential to g arantee the efficiency and d ration of
the machine. Do not work with a damaged filter or
witho t a filter, as this co ld permanently damage
the engine.
It must be cleaned a ter every 15 working hours.
WARNING!
IMPORTANT
Clean the ilter as ollows:
– Press the button (1), turn the cover (2) over and
remove the ilter element (3).
– Wash the ilter element (3) with soap and water.
Do not use petrol or other solvents.
– Leave the ilter to dry in the open air.
– Re it the ilter element (3) and close the cover (2)
pushing until it clicks into place.
CHECKING THE SPARK PLUG (Fig. 18)
Periodically remove and clean the spark plug using
a metal brush to get rid o any deposits.
Check and reset the correct distance between the
electrodes.
Replace the spark plug and asten it irmly using the
supplied wrench.
The spark plug must be replaced with one with the
same characteristics whenever the electrodes
have burnt or the insulation has worn, and in any
case every 100 working hours.
TUNING THE CARBURETTOR
The carburettor is tuned by the manu acturer to
achieve maximum per ormance in all situations,
with a minimum emission o toxic gas in compli-
ance with the regulations in orce.
In the case o poor per ormance contact your
Dealer or a check o the carburetion and engine.
•Tuning minimum sp d
The cutting device must
not move when the engine is running idle. If
the cutting device moves when the engine is
running idle, contact your dealer to correctly
regulate the engine.
ANGLE TRANSMISSION (Fig. 19)
Lubricate with lithium-based grease.
Remove the screw (1) and put in the grease, turn-
ing the sha t manually until grease emerges, then
replace the screw (1).
WARNING!
12 MAINTENANCE AND STORAGE
EN
8. MAINTENANCE AND STORAGE

SHARPENING THE 3 POINT BLADE
(Fig. 20)
Use protective gloves. If
sharpening is done without removing the
blade, disconnect the spar plug cap.
Sharpening must be done taking account o the
type o blade and cutting edges, using a lat ile and
working all the points equally.
The re erences or correct sharpening are given in
Fig. 20:
A = Incorrect sharpening
B = Sharpening limits
C = Incorrect and unequal angles
It is important to retain the correct balance a ter
sharpening.
3 point blades can be used rom both sides. When
one side o the points is worn, the blade can be
turned and the other side used.
The blade must never be
repaired, but must be replaced as soon as
signs of brea ing are noted or the sharpening
limit is exceeded.
HEAD LINE REPLACEMENT (Fig. 21)
SHARPENING THE LINE CUTTING KNIFE
(Fig. 22)
– Remove the line cutting kni e (1) rom the guard
(2) by unscrewing the screws (3).
– Fix the line cutting kni e in a vice and sharpen it
using a lat ile, being care ul to retain the origi-
nal cutting angle.
– Re it the kni e on the guard.
EXTRAORDINARY MAINTENANCE
All maintenance operations not oreseen in this
manual must be per ormed exclusively by your
dealer.
All and any operations per ormed in unauthorised
centres or by unquali ied persons will totally inval-
idate the warranty.
WARNING!
WARNING!
STORAGE
A ter every work stint, clean the machine thor-
oughly to remove all dust and debris, and repair or
replace any aulty parts.
The machine must be stored in a dry place away
rom the elements and with the cover correctly it-
ted.
LONG PERIODS OF DISUSE
If yo are not going to se
the machine for a period of more than 2-3 months,
we recommend yo do a few things before p tting
it away. This will make it easier when yo want to
se the machine again and will also prevent per-
manent damage to the engine.
• Storag
Be ore putting the machine away:
– Empty the uel tank.
– Start the engine and run it idle until it comes to a
halt, so that it uses up all the uel that is le t in the
carburettor.
– Wait or the engine to cool down and remove the
spark plug
– Pour a teaspoon o resh oil into the spark plug
hole.
– Pull the starter rope several times to deliver oil to
the cylinder.
– Replace the spark plug with the piston in the
dead end upper position (visible rom the spark
plug slot when the piston is at maximum stroke).
• R starting work
When you wish to start using the machine again:
– Remove the spark plug.
– Pull the starter rope a ew times to eliminate ex-
cess oil.
– Check the spark plug as described in chapter
“Checking the spark plug”.
– Prepare the machine as indicated in the para-
graph entitled “Preparing or work”.
IMPORTANT
MAINTENANCE AND STORAGE 13
EN

14 TROUBLESHOOTING / TECHNICAL SPECIFICATIONS
EN
9. TROUBLESHOOTING
1) The engine will
not start or will not
keep running
2) The engine starts
but is lacking in
power
3) The engine runs
irregularly and lacks
in power when
revved
4) The engine gives
off an excessive
amount of smoke
– Incorrect starting procedure
– Dirty spark plug or incorrect
distance between the electrodes
– Air filter clogged
– Carburetion problems
– Air filter clogged
– Carburetion problems
– Dirty spark plug or incorrect
distance between the electrodes
– Carburetion problems
– Incorrect composition
of the fuel mixture
– Carburetion problems
– Follow the instructions
(see chapter 6)
– Check the spark plug
(see chapter 8)
– Clean and/or replace the filter
(see chapter 8)
– Contact your dealer
– Clean and/or replace the filter
(see chapter 8)
– Contact your dealer
– Check the spark plug
(see chapter 8)
– Contact your dealer
– Prepare the fuel mixture according
to the instructions (see chap. 5)
– Contact your dealer
PROBLEM LIKELY CAUSE SOLUTION
Engine ................................ 2-stroke air-cooled
Capacity / Power
MBCP254 ........................... 25.4 cm3/ 0.7 kW
Engine rotation speed at tick-over
.......................... 2650-2950 rpm
aximum engine rotation speed
................................. 11500 rpm
Maximum tool rotation speed -
................................... 9000 rpm
Spark plug .............................. Torch L8RTC or
NGK-R BPMR7A or equivalent
Mixture .......... Petrol : 2-stroke oil = 50:1 = 2%
Tank capacity
..................................... 650 cm3
Maximum permitted blade diameter
3 point blade .................................. Ø 255 mm
Weight 1)
.......................................... 7.1 kg
1) Weight as per standard ISO 11806 (without
fuel. cutting devices and guards)
10. TECHNICAL SPECIFICATIONS
MBCP254
MBCP254
M
MBCP254
MBCP254
MBCP254
(3 point blade)