GGP Italy SPA Chainsaw PRUNING PR270 Instructions Manual

							171501050/0Realizzazione: EDIPROM / bergamo
GGP ITALY 
SPA
Via del Lavoro, 6
I-31033 Castelfranco Veneto (TV) ITALY
Motosega - MANUALE DI ISTRUZIONI
ATTENZIONE: prima di utilizzare la macchina, leggere attentamente il
presente libretto.
Chain-saw - OPERATOR’S MANUAL
WARNING: read thoroughly the instruction booklet before using this
machine.
Scie à chaîne - MANUEL D’UTILISATION
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machine.
Motorsäge - GEBRAUCHSANWEISUNG
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aufmerksam lesen.
Motosierra - MANUAL DE INSTRUCCIONES
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de instrucciones.
Kettingzaag - GEBRUIKERSHANDLEIDING
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handleiding aandachtig door te lezen.
Motosserra - MANUAL DE INSTRUÇÕES
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de instruções.
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UWAGA: Przed użyciem urządzenia przeczytaj uważnie niniejszą
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Motorna verižna žaga - PRIROČNIK ZA UPORABU
POZOR: Preden uporabite stroj, pazljivo preberite priročnik
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FRENITNLDEESPTELTRSLPLRUHR  
						

							1. For Safe OperationEN 1
Dear Customer,
Firstly, we wish to thank you for having chosen our products and hope that the use of this machine will
be extremely satisfying for you and fully meet your expectations. This manual has been drawn up to
allow your to get to know your machine well and use it in safe and efficient conditions; please do not
forget that it is an integral part of the machine and keep it to hand to be consulted at all times and con-
sign it with the machine if you should sell or lend it to others.
Your new machine has been designed and manufactured to current standards and is safe and reliable
if used in full respect of the instructions contained in this manual (forecast use); any other use or fail-
ure to comply with the instructions for safe use, maintenance and repair shall be considered as
“improper use”, cause the warranty to become null and void and relieve the Manufacturer from all
responsibility, with the user becoming responsible for charges for damages or personal or third party
injury.
If any slight differences are found between the description herein and the machine you own, please
bear in mind that due to continual product improvement, the information contained in this manual is
subject to modification without prior notice or obligatory updating,  although the essential features for
the purposes of safety and operation remain unchanged. In the event of doubt, please contact your
dealer. Enjoy your work!
1.For Safe Operation ......................................................... 12.Explanation of Symbols on the Machine  ....................... 63.Installing Guide Bar and Saw Chain  .............................. 74.Fuel and Chain Oil  ......................................................... 85.Operating the Engine  ................................................... 106.Sawing .......................................................................... 137.Maintenance ................................................................. 158.Maintenance of Saw Chain and Guide Bar  ................. 179.Troubleshooting Guide ................................................. 18
Contents
This chainsaw has been espe-
cially designed for tree mainte-
nance and should therefore
only be used by trained opera-
tors when working on trees.

!WARNING!
EXPLANATION OF SYMBOLS
AND SAFETY WARNINGS1.Read, understand and follow all warnings.2.Warning! Danger of kickback.3.Use the chain saw with two hands.4.Read operators instruction book before operating this
machine.
5.Wear head, eye and ear protection.6.Wear strong working gloves.7.Wear boots or protective shoes with grippy soles and steel
toecaps.
8.Use appropriate protections for foot-leg and hand-arm .9.This saw is for trained tree service operators only. 
WARNING!!!
RISK OF DAMAGING HEARING
IN NORMAL CONDITIONS OF USE, THIS MACHINE MAY INVOLVE A DAILY LEVEL
OF PERSONAL EXPOSURE TO NOISE FOR THE OPERATOR EQUAL TO OR
GREATER THAN
85 dB(A)
1. For Safe Operation    
						

							EN 21. For Safe Operation
1.Never operate a chain saw
when you are fatigued, ill, or
upset, or under the influence of
medication that may make you
drowsy, or if you are under the
influence of alcohol or drugs.
2.Use safety footwear, snug fit-
ting clothing and eye, hearing and
head protection devices.
Use the vibration-proof glove.
3.Keep the saw chain sharp and
the saw, including the AV system,
well maintained. A dull chain will
increase cutting time, and press-
ing a dull chain through wood will
increase the vibrations transmit-
ted to your hands. A saw with
loose components or with dam-
aged or worn AV buffers will also
tend to have higher vibration lev-
els.
4.All the above mentioned pre-
cautions do not guarantee that
you will not sustain whitefinger
diseaseor carpal tunnel syn-
drome.
Therefore, continual and regular
users should monitor closely the
condition of their hands and fin-
gers. If any of the above symp-
toms appear, seek medical advice
immediately.
5.Always use caution when han-
dling fuel. Wipe up all spills and
then move the chain saw at least 3
m from the fueling point before
starting the engine.
6.Eliminate all sources of sparks
or flame (i.e. smoking, open
flames, or work that can cause
sparks) in the areas where fuel is
mixed, poured, or stored.
7.Do not smoke while handling
fuel or while operating the chain
saw.
8.Do not allow other persons to
be near the chain saw when start-
ing or cutting. Keep bystanders
and animals out of the work area.
Children, pets and bystanders
should be a minimum of 10 m
away when you start or operate
the chain saw.
9.Never start cutting until you
have a clear work area, secure
footing, and a planned retreat
path from the falling tree.
10.Always hold the chain saw
firmly with both hands when the
engine is running. Use a firm grip
with thumb and fingers encircling
the chain saw handles.
11.Keep all parts of your body
away from the saw chain when the
engine is running.
12.Before you start the engine,
make sure the saw chain is not
contacting anything.
13.Always carry the chain saw
with the engine stopped, the
guide bar and saw chain to the
rear, and the muffler away from
your body.
14.Always carry the chain saw
with the engine stopped, the
guide bar and saw chain to the
rear, and the muffler away from
your body.
15.All chain saw service, other
than the items listed in the
Owner’s Manual, should be per-
formed by competent chain saw
service personnel. (E.g., if improp-
er tools are used to remove the
flywheel, or if an improper tool is
used to hold the flywheel in order
to remove the clutch, structural
1. For Safe Operation  
						

							1. For Safe OperationEN 3
damage to the flywheel could
occur which could subsequently
cause the flywheel to disinte-
grate.)
16.Always shut off the engine
before setting it down.
17.Use extreme caution when
cutting small size brush and
saplings because slender material
may catch the saw chain and be
whipped toward you or pull you
off balance.
18.When cutting a limb that is
under tension, be alert for spring-
back so that you will not be struck
when the tension in the wood
fibers is released.
19.Never cut in high wind, bad
weather, when visibility is poor or
in very high or low temperatures.
Always check the tree for dead
branches which could fall during
the felling operation.
20.Keep the handles dry, clean
and free of oil or fuel mixture.
21.Operate the chain saw only in
well ventilated areas. Never start
or run the engine inside a closed
room or building. Exhaust fumes
contain dangerous carbon
monoxide.
22.Do not operate the chain saw
in a tree unless specially trained to
do so.
23.Guard against kickback.
Kickback is the upward motion of
the guide bar which occurs when
the saw chain at the nose of the
guide bar contacts an object.
Kickback can lead to dangerous
loss of control of the chain saw.
24.When transporting your chain
saw, make sure the appropriate
guide bar scabbard is in place.
1.1 KICKBACK SAFETY PRECAUTIONS FOR
CHAIN SAW USERS 
Kickback may occur when
the nose or tip of the guide bar touches an
object, or when the wood closes in and
pinches the saw chain in the cut. Tip contact
in some cases may cause a lightning fast
reverse reaction, kick-
ing the guide bar up
and back towards the
operator.
Pinching the saw
chain along the top of
the guide bar may
push the guide bar
rapidly back towards the operator. Either of
these reactions may cause you to lose control
of the saw, which could result in serious per-
sonal injury.
• Do not rely exclusively on the safety devices
built into your saw. As a chain saw user you
should take several steps to keep cutting
jobs free from accident or injury.
1. With a basic understanding of kickback you
can reduce or eliminate the element of surprise.
Sudden surprise contributes to accidents.
2. Keep a good grip on the saw
with both hands, the right hand on
the rear handle, and the left hand
on the front handle, when the
engine is running. Use a firm grip
with thumbs and fingers encircling
the chain saw handles. A firm grip
will help you reduce kickback and
maintain control of the saw.
3. Make certain that the area in
which you are cutting is free from
obstructions. Do not let the nose
of the guide bar contact a log,
branch, or any other obstruction
which could be hit while you are
operating the saw.
4. Cut at high engine speeds.
5. Do not overreach or cut above
shoulder height.
6. Follow the manufacturer’s
sharpening and maintenance
instructions for the saw chain.
7. Only use replacement bars and
chains specified by the manufac-
turer or the equivalent.

!WARNING! 
						

							1.2 WORKING WITH TREE SERVICE CHAIN-
SAWS FROM A ROPE AND HARNESS
This chapter sets out working practices to
reduce the risk of injury from tree service chain-
saws when working at height from a rope and
harness. 
While it may form the basis of guidance and
training literature, it should not be regarded as a
substitute for formal training.
General requirements working at height
Operators of tree service chainsaws working at
height from a rope and harness should never
work alone. 
A competent ground worker trained in appropri-
ate emergency procedures should assist them.
Operators of tree service chainsaws for this work
should be trained in general safe climbing and
work positioning techniques and shall properly
equipped with harnesses,  ropes, strops, kara-
biners and other equipment for maintaining
secure and safe working positions for both
themselves and the saw.
Preparing to use the saw in the tree
The chainsaw should checked,
fuelled, started and warmed up
by the ground worker before it is
sent up to the operator in the
tree. 
The chainsaw should be fitted
with a suitable strop for attach-
ing to the operator’s harness:
a) choke the strop around the attachment point
on the rear of the saw (A);
b) provide suitable karabiners to allow indirect
(i.e. via the strop) and direct attachment (i.e.at the attachment point on the saw) of saw to
the operators harness;
c) ensure the saw is securely attached when it is
being sent up to the operator;
d) ensure the saw it secured to the harness
before it is disconnected from the means of
ascent.
The saw should only be attached to the recom-
mended attachment points on the harness.
These may be at mid-point (front or rear) or at
the sides. 
Where possible attaching the saw to centre rear
mid-point will keep it clear of climbing lines and
support its weight centrally down the operator’s
spine.
When moving the saw from
any attachment point to
another,  operators should
ensure it is secured in the
new position before releasing
it from the previous attach-
ment point.
Using the chainsaw in the tree
An analysis of accidents with these saws during
tree service operations shows the primary cause
as being inappropriate one-handed use of the
saw. In the vast majority of accidents, operators
fail to adopt a secure work position witch allows
them to hold both handles of the saw. 
This results in an increased risk of injury due to:
•  not having a firm grip on the saw if it kicks
back;
•  a lack of control of the saw such that it is
more liable to contact climbing lines and
operators body (particularly the left hand and
arm)
•  losing control from insecure work position
resulting in contact with the saw (unexpected
movement during operation of the saw) EN 4
1. For Safe Operation
(A)    
						

							Securing the work position for two-handed
use
To allow the operator to hold the saw with both
hands,  they should as general rule, aim for
secure work position where they are operating
the saw at:
•  hip level when cutting horizontal sections;
•  solar plexus level when cutting vertical sec-
tions.  
Where the operator is working close into vertical
stems with a low lateral forces on their work
position, then a good footing may be all that is
needed to maintain a secure work position. 
However as operators
move away from the
stem, they will need to
take steps to remove or
counteract the increasing
lateral forces by, for
example, a re-direct of
the main line via a sup-
plementary anchor point
or using an adjustable
strop direct from the har-
ness to a supplementary
anchor point.
Gaining a good footing at
the working position can
be assisted by use of a
temporary foot stirrup
created from an endless
sling.
Starting the saw in the tree
When starting the saw in the tree, the operator
should:
a) apply the chain brake before starting;
b)  hold saw on either the left or right of the
body when starting:
1) on the left side hold the saw with either the
left hand on the front handle or the right hand
on the rear handle and thrust the saw away
from the body while holding the pull starter
cord in the other hand;
2) on the right side, hold the saw with the right
hand on either handle and thrust the saw
away from the body while holding the pull
starter cord in the left hand. The chain brake should always be engaged
before lowering a running saw onto its strop.
Operators should always check the saw has suf-
ficient fuel before undertaking critical cuts.
One-hand use of the chainsaw
Operators should not use tree service chainsaws
onehanded in place of unstable work positioning
or in preference to a handsaw when cutting small
diameter wood at the branch tips.
Tree service chainsaws should only be used
one-handed where:
•  the operator cannot
gain a work posi-
tion enabling two-
handed use; and
•  they need to sup-
port their working
position with one
hand; and
• the saw is being
used at full stretch,
at right angles to
and out of line with the operator’s body.
Operators should never:
•  cut with the kickback zone at the tip of the
chainsaw guide bar
•  ‘hold and cut’ sections
•  attempt to catch falling sections.
Freeing a trapped saw
If the saw should become trapped during cut-
ting, operators should:
•switch off the saw and attach it securely to the
tree inboard (i.e. towards the truck side) of the
cut or to a separate tool line;
•pull the saw from the kerf whilst lifting the
branch as necessary;
•if necessary, use a handsaw or second chain
saw to release the trapped saw by cutting a
minimum of 30 cm away from the trapped
saw.
Whether a handsaw or a chainsaw is used to free
a stuck saw, the release cuts should always be
outboard (toward the tips of the branch), in order
to prevent the saw being taken with the section
and further complicating the situation.
1. For Safe OperationEN 5    
						

							EN 62. Explanation of Symbols on the Machine
For safe operation and
maintenance, symbols are carved in relief on
the machine.
According to these indications, please be
careful not to make any mistake.
The port to refuel “MIX GASO-
LINE”
Position:Fuel cap
The port to top up chain oil
Position:Oil cap
Setting the switch to the “I”
position, the engine starts.
Setting the switch to the “O”
position, the engine stops
immediately.
Position: Front at the top of
the rear handle
Starting the engine. If you pull
out the choke knob (at the
back-right of the rear handle)
to the point of the arrow, you
can set the starting mode as
follows:
•First-stage position – start-
ing mode when the engine is
warm.
•Second-stage position –
starting mode when the
engine is cold.
Position:Upper-right of the
aircleaner cover

!WARNING!The screw under the “H”
stamp is The High-speed
adjustment screw.
The screw under the “L” stamp
is The Slow-speed adjustment
screw.
The screw at the left of the “T”
stamp is the Idle adjustment
screw.
Position:Left side of the rear
handle
Shows the directions that the
chain brake is released (white
arrow) and activated (black
arrow).
Position:Front of the chain
cover
If you turn the rod by screw-
driver follow the arrow to the
MAX position, the chain oil
flow more, and if you turn to
the MIN position, less.
Position:Bottom of the
power unit
2. Explanation of Symbols on the Machine   
						

							3. Installing Guide Bar and Saw ChainEN 7
A standard saw unit package contains the items
as illustrated.
Open the box and install the guide bar and the
saw chain on the power unit as follows:
The saw chain has very
sharp edges. Use thick protective gloves for
safety.
1. Pull the guard towards the front handle to
check that the chain brake is not engaged.
2. Loosen the nuts and remove the chain cover.
3. Fix the hanger on the rear of power unit by
screw.
4. Mount the guide bar then fit the saw chain
around the bar and sprocket.

!WARNING!
Pay attention to the correct
direction of the saw chain.
5. Fit the chain tensioner nut into the lower hole
of the guide bar, then install the chain cover,
and fasten the mounting nut to finger tight-
ness.
When installing the
chain cover, be
sure to fit the hook
completely at the
rear end of the
cover.
6. While holding up the tip of the bar, adjust the
chain tension by turning the tensioner screw
until the tie straps just touch the bottom side
of the bar rail.
7. Tighten the nuts securely with the bar tip held
up (12 ~ 15 Nm). Then check the chain for
smooth rotation and proper tension while
moving it by hand. If necessary, readjust with
the chain cover loose.
8. Tighten the tensioner screw.
A new chain will expand its
length in the beginning of use. Check and read-
just the tension frequently as a loose chain can
easily derail or cause rapid wear of itself and the
guide bar.
NOTE

!WARNING!
NOTE
3. Installing Guide Bar and Saw Chain
(1) Power unit
(2) Bar protector
(3) Guide bar
(4) Saw chain
(5) Plug wrench
(6) Screwdriver for carburetor adjustment
1) Chain cover
(2) Chain Tensioner
nut
(3) Hole
(1)
(1) Hanger
(1) Moving
direction
(1) Loosen
(2) Tighten
(3) Tensioner
screw
(1) Tighten       
						

							EN 84. Fuel and Chain Oil
• FUEL
Gasoline is very flamma-
ble. Avoid smoking or bringing any flame or
sparks near fuel. 
Make sure to stop the engine and allow it cool
before refueling the unit. 
Select outdoor bare ground for fueling and
move at least 3 m (10 ft) away from the fuel-
ing point before starting the engine.
•The engines are lubricated by oil specially for-
mulated for air-cooled 2-cycle gasoline engine
use. Use an anti-oxidant added quality oil
expressly labeled for air-cooled 2-cycle engine
use (JASO FC GRADE OIL or ISO EGC
GRADE).
•Do not use BIA or TCW (2-stroke water-cool-
ing type) mixed oil.
•RECOMMENDED MIXING RATIO GASO-
LINE 50: OIL 1
•Exhaust emission are controlled by the funda-
mental engine parameters and components
(eq., carburation, ignition timing and port tim-
ing) without addition of any major hardware or
the introduction of an inert material during
combustion.
•These engines are certified to operate on
unleaded gasoline.
•Make sure to use gasoline with a minimum
octane number of 89RON (USA/Canada:
87AL).
•If you use a gasoline of a lower octane value

!WARNING!
than prescribed, there is a danger that the
engine temperature may rise and an engine
problem such as piston seizing may conse-
quently occur.
•Unleaded gasoline is recommended to reduce
the contamination of the air for the sake of
your health and the environment.
•Poor quality gasolines or oils may damage
sealing rings, fuel lines or fuel tank of the
engine.
•HOW TO MIX FUEL
Pay attention to agitation.
1. Measure out the quantities of gasoline and oil
to be mixed.
2.Put some of the gasoline into a clean,
approved fuel container.
3. Pour in all of the oil and agitate well.
4. Pour in the rest of gasoline and agitate again
for at least one minute. As some oils may be
difficult to agitate depending on oil ingredi-
ents, sufficient agitation is necessary for the
engine to last long. Be careful that, if the agi-
tation is insufficient, there is an increased
danger of early piston seizing due to abnor-
mally lean mixture.
5. Put a clear indication on the outside of the
container to avoid mixing up with gasoline or
other containers.
6. Indicate the contents on outside of container
for easy identification.
•FUELING THE UNIT
1. Untwist and remove the fuel cap. Rest the
cap on a dustless place..
2. Put fuel into the fuel tank to 80% of the full
capacity.
3. Fasten the fuel cap securely and wipe up any
fuel spillage around the unit.

!WARNING!
4. Fuel and Chain Oil  
						

							4. Fuel and Chain OilEN 9
1. Select flat and bare ground for fueling.
2. Move at least 10 feet (3 meters) away from
the fueling point before starting the
engine.
3. Stop the engine before refueling the unit.
At that time, be sure to sufficiently agitate
the mixed gasoline in the container.
•FOR YOUR ENGINE LIFE, AVOID:
1. FUEL WITH NO OIL (RAW GASOLINE) – It will
cause severe damage to the internal engine
parts very quickly.
2. GASOHOL – It can cause deterioration of
rubber and/or plastic parts and disruption of
engine lubrication.
3. OIL FOR 4-CYCLE ENGINE USE – It can
cause spark plug fouling, exhaust port block-
ing, or piston ring sticking.
4.
Mixed fuels which have been left unused
for a period of one monthor more may clog
the carburetor and result in the engine failing
to operate properly.
5. In the case of storing the product for a long
period of time, clean the fuel tank after ren-
dering it empty. Next, activate the engine and
empty the carburetor of the composite fuel.
6. In the case of scrapping the used mixed oil
container, scrap it only at an authorized
repository site.
Moreover, normal wear and
change in product with no functional influence
are not covered by the warranty. Also, be careful
that, if the usage in the instruction manual is not
observed as to the mixed gasoline, etc.
described therein, it may not be covered by the
warranty.
•CHAIN OIL
Only use special oil for chain
saws or adhesive oil for chain saws. Do not use
oil containing impurities so as not to block the oil
filter and to prevent irreparable damage to the oil
pump.
The special oil for lubricating
the chain is biodegradable. Use of a mineral oil
or engine oil causes serious damage to the envi-
ronment.
IMPORTANT
IMPORTANT
NOTE

!WARNING!It is essential that you use good quality oil to
lubricate the cutting parts effectively. Used or
poor quality oil does not guarantee good lubri-
cation and reduces the duration of the chain and
bar.
It is always worth topping up the oil tank com-
pletely (using a funnel) every time you refuel.
Since the oil tank capacity is enough to guaran-
tee that the fuel runs out first, you will avoid the
risk of operating the machine without lubricant.