GGP Italy SPA Chainsaw PRUNING PR270 Instructions Manual

							EN 105. Operating the Engine
It is very dangerous to run
a chainsaw that mounts broken parts or lacks
any parts. Before starting engine, make sure
that all the parts including bar and chain are
installed properly.
•STARTING THE ENGINE
•Before starting the engine
1. Fill fuel and chain oil tanks respectively, and
tighten the caps securely.
2. Continuously push the priming bulb until fuel
comes in the bulb.
3. Set the switch to “I” position.
4. Pull out the choke knob to the second-stage
position. The choke will close and the throttle
lever will then be set in the starting position.
When restarting immediately
after stopping the engine, set the Choke knob in
NOTE

!WARNING!
the first-stage position (choke open and throttle
lever in the starting position).
Once the choke knob has
been pulled out, it will not return to the operating
position even if you press down on it with your
finger. When you wish to return the choke knob
to the operating position, pull out the throttle
lever instead.
Before you start the
engine, make sure the saw chain is not con-
tacting anything.
•Starting the engine on the ground
Do not start the engine
while the chain saw hangs in one hand. The
saw chain may touch your body. This in very
dangerous.
Keep clear of the saw
chain as it will start rotating upon starting of
engine.
5. While holding the saw unit securely on the
ground, pull the starter rope vigorously.
6. When engine has ignited, first push in the
choke knob to the first-stage position and
then pull the starter again to start the engine.
7. Allow the engine to warm up with the throttle
lever pulled slightly.

!WARNING!

!WARNING!

!WARNING!
NOTE
5. Operating the Engine
(1) Chain oil
(2) Fuel
(1) Throttle interlock
(2) Throttle lever
Choke knob:
(1) When the engine is
cool
(2) When the engine is
warm up
(3) After the engine
starts
(1) Switch       
						

							5. Operating the EngineEN 11
•Starting the engine on a tree
Carefully follow the
instructions under “For your safety” (1.2).
•CHECKING THE OIL SUPPLY 
Make sure to set up the bar
and the chain when checking the oil supply.
If not, the rotating parts may be exposed. It is
very dangerous.
After starting the engine, run the chain at medi-
um speed and see if chain oil is scattered off as
shown in the figure.
The chain oil flow can be changed by inserting a
screwdriver in the hole on bottom of the clutch
side.  Adjust according to your work conditions.
The oil tank should become
nearly empty by the time fuel is used up. Be sure
to refill the oil tank every time when refueling the
saw.
•ADJUSTING THE CARBURETOR
The carburetor on your unit has been factory
adjusted,  but may require fine tuning due to a
change in operating conditions.
Before adjusting the carburetor, make sure that
the provided air/fuel filters are clean and fresh
and the fuel properly mixed.
NOTE

!WARNING!

!WARNING!
When adjusting, take the following steps:
Be sure to adjust the carbu-
retor with the bar chain attached.
1. “H” and “L” needles are restricted within the
number of turn as shown below.
“H” needle: -1/4
“L” needle: -1/4
2. Start the engine and allow it to warm up in
low speed for a few minutes.
3. Turn the idle adjusting screw (T) counter-
clockwise so that the saw chain does not
turn. If the idling speed is too slow, turn the
screw clockwise.
4. Make a test cut and adjust the “H” needle for
best cutting power, not for maximum speed.
•CHAIN BRAKE
The chain brake is a device which stops the
chain instantaneously if the chain saw recoils
due to kickback.
Normally, the brake is activated automatically by
inertial force. It can also be activated manually
by pushing the brake lever (left-hand guard)
down toward the front.
When the brake operates, a yellow cone pops up
from the base of the brake lever.
Releasing the Brake
Pull the brake lever up toward the left-hand han-
dle until it clicks into place.
When the brake operates,
release the throttle lever to slow down the
engine speed. Continuous operation with the
brake engaged will generate heat from the
clutch and may cause trouble.
At machine inspection prior to each job,
check the operating condition of the brake
following the steps.
!WARNING!
NOTE
(1) Chain oil flow
adjusting shaft
(2) Rich
(3) Lean
(1) “L” needle
(2) “H” needle
(3) Idle adjusting
screw
(1) Chain oil    
						

							EN 125. Operating the Engine
1. Start the engine and grasp the handle secure-
ly with both hands.
2. Pulling the throttle lever to maintain the chain
operation, push the brake lever (left-hand
guard) down toward the front using the back
of your left hand.
3. When the brake operates and the chain is
stopped, release the throttle lever.
4. Release the brake.
•STOPPING THE ENGINE
1. Release the throttle lever to allow the engine
to idle for a few minutes
2. Set the switch to the “O” (STOP) position.
(1) Switch
(1) Release
(2) Activate the brake.   
						

							6. SawingEN 13
•Before proceeding to
your job, read the sec-
tion “For Safe Oper-
ation”. It is recommend-
ed to first practice saw-
ing easy logs. This also
helps you get accus-
tomed to your unit.
•Always follow the safety
regulations. The chain
saw must only be used
for cutting wood. It is
forbidden to cut other
types of material.
Vibrations and kickback
vary with different mate-
rials and the require-
ments of the safety reg-
ulations would not be
respected. Do not use
the chain saw as a lever
for lifting, moving or
splitting objects. Do not
lock it over fixed stands.
It is forbidden to hitch
tools or applications to
the PTO other than
those specified by the
manufacturer.
•
It is not necessary to force the saw into the
cut. Apply only light pressure while running the
engine at full throttle.
•When the saw chain is caught in the cut, do
not attempt to pull it out by force, but use a
wedge or a lever to open the way.
•GUARD AGAINST KICKBACK

!WARNING!•This saw is equipped with
a chain brake that will
stop the chain in the
event of kickback if oper-
ating properly. You must
check the chain brake
operation before each
usage by running the saw
at full the throttle for 1-2
seconds and pushing the
front hand guard forward.
The chain should stop
immediately with the
engine at full speed. If the
chain is slow to stop or
does not stop, replace the
brake band and clutch
drum before use.
•It is extremely important
that the chain brake be
checked for proper oper-
ation before each use and
that the chain be sharp in
order to maintain the kick-
back safety level of this
saw. Removal of the safe-
ty devices, inadequate
maintenance, or incorrect
replacement of the bar or
chain may increase the
risk to serious personal
injury due to kickback.
•FELLING A TREE
1. Decide the felling direction considering the
wind, lean of the tree, location of heavy
branches, ease of completing the task after
felling and other factors.
2.While clearing the area around the tree,
arrange a good foothold and retreat path.
(1) Notch cut
(2) Felling cut
(3) Felling direction
6. Sawing   
						

							EN 146. Sawing
3. Make a notch cut one-third of the way into
the tree on the felling side.
4. Make a felling cut from the opposite side of
the notch and at a level slightly higher than
the bottom of the notch.
When you fell a tree, be
sure to warn neighboring workers of the dan-
ger.
Bucking and Limbing
•Always ensure your foothold. Do not stand
on the log.
•Be alert to the rolling over of a cut log.
Especially when working on a slope, stand
on the uphill side of the log.
•Follow the instructions in “For Safe
Operation” to avoid kickback of the saw.
Before starting work, check the direction of
bending force inside the log to be cut. Always
finish cutting from the opposite side of the bend-
ing direction to prevent the guide bar from being
caught in the cut.
A log lying on the ground
Saw down halfway, then roll the log over and cut
from the opposite side.
A log hanging off the ground
In area “A”, saw up from the bottom one-third
and finish by sawing down from the top. In area
“B”, saw down from the top one-third and finish
by sawing up from the bottom.

!WARNING!

!WARNING!Cutting the limbs of Fallen Tree
First check to which side the limb is bent. Then
make the initial cut from the bent side and finish
by sawing from the opposite side.
Be alert to the springing
back of a cut limb.
Pruning of Standing Tree
For pruning high up using a
rope and a belt slings, carefully follow the
instructions under “For your safety” (1.2).
Cut up from the bottom, finish down from the
top.
•Do not work standing on unstable bases or
rung ladders.
•Do not overreach.
•Do not cut above shoulder height.

!WARNING!

!WARNING!

!WARNING!     
						

							7. MaintenanceEN 15
Before cleaning, the
inspecting or repairing the unit, make sure
that engine has stopped and is cool.
Disconnect the spark plug to prevent acci-
dental starting.
•MAINTENANCE AFTER EACH USE
1. Air filter
Loosen the knob and remove the air cleaner
cover. 
Take off the filter elements and tap off attached
sawdust. When they are extremely dirty, shake-
wash with gasoline. Dry them completely before
reinstalling.
2. Oiling port
Dismount the guide bar and check the oiling port
for clogging.
3. Guide bar
When the guide bar is dismounted, remove saw-
dust in the bar groove and the oiling port.
•Sprocket noseGrease the nose sprocket from the feeding port
on the tip of the bar.

!WARNING!4. Others
Check for fuel leakage and loose fastenings and
damage to major parts, especially handle joints
and guide bar mounting.
If any defects are found, make sure to have them
repaired before operating the saw again.
•PERIODICAL SERVICE POINTS
1. Cylinder fins
1. Remove the starter case.
2. Remove sawdust between the cylinder fins.
3. Clean the valute area.
2. Fuel filter
1. Using a wire hook, take out the filter from the
filler port.
2. Wash the filter with gasoline. Replace with
new one if clogged with dirt completely.
When returning the filter,
use a pinch not to be folded the suction pipe.
!WARNING!
7. Maintenance
(1) Fuel filter
(1) Oiling port
(2) Grease port
(3) Sprocket
(1) Oiling port      
						

							EN 167. Maintenance
3. Oil filter
1. With a wire hook, take out the oil filter from
the feeding port.
2. Wash the filter with gasoline.
When returning the filter,
use a pinch not to be folded the suction pipe.
4. Spark plug
Clean the electrodes with a wire brush and reset
the gap to 0.65 mm as necessary.
5. Sprocket
Check for cracks and for excessive wear inter-
fering with the chain drive. If the wear is consid-
erable, replace it with new one. Never fit a new
chain on a worn sprocket, or a worn chain on a
new sprocket.
6. Way of the cooling air
•The engine metal parts can burn your skin.
Never touch the cylinder, muffler or ignition
plug etc.  during operation or right after stop-
ping the engine.
•Before starting the engine, check around the
muffler and take off sawdust. If you do not, it

!WARNING!

!WARNING!
will cause the overheating and a fire. For pre-
venting the trouble, please keep clean around
the muffler.
This engine is air-cooled. Dust clogging between
the inlet port of the cooling air and cylinder fins
will cause overheating of the engine. Periodically
check and clean the cylinder fins after removing
the air cleaner and the cylinder cover.
When installing the cylinder
cover, make sure that switch wires and grom-
mets are positioned correctly in place.
7. Muffler
If you do not attach the
muffler correctly, after engine starts, the muf-
fler will be loosen and the hightemperature
exhaust gas spout. After cleaning the muffler,
pay attention to fit up the muffler according to
the explanation as follows.
1. Muffler body, muffler
cover and baffle will
be combined cor-
rectly.
2. Be sure the gasket
is not broken. If it is
broken, change to
the new one.
3.Before tightening
the screw, rub the
gross on it.
4. After making a test run, re-tighten the screw
(TORQUE: 7-8 Nm).)
Right after stopping the
engine, do not touch the muffler with ones
bare hands. It will cause to burn your hands.
If carbon clogs between the muffler, it will cause
the poor-output and the trouble in starting. After
each 100 hours, check and clean inside the muf-
fler.

!WARNING!

!WARNING!
IMPORTANT
Champion
RCJ-7Y
(1) Oil filter(1) Inlet port of the
cooling air      
						

							7. Maintenance of Saw Chain and Guide BarEN 17
1. Saw Chain
It is very important for
smooth and safe operation to always keep
the cutters sharp.
The cutters need to be sharpened when:
•Sawdust becomes powder-like.
•You need extra force to saw in.
•The cut path does not go straight.
•Vibration increases.
•Fuel consumption increases.
Cutter setting standards
Be sure to wear safety
gloves.
Before filing:
•Make sure the saw chain is held securely.
•Make sure the engine is stopped.
•Use a round file of proper size for the chain
(5/32 in. - 4.0 mm).
Place the file on the cutter and push straight for-
ward.
Keep the file position as illustrated.
After each cutter has been filed, check the depth
gauge and file it to the proper level as illustrated.
Be sure to round off the
front edge to reduce the chance of kickback
or tie-strap breakage.
!WARNING!

!WARNING!

!WARNING!
Make sure every cutter has the same length and
edge angles as illustrated.
2. Guide Bar
•Reverse the bar occasionally to prevent partial
wear.
•The bar rail should always be square. 
Check for wear of the bar rail. Apply a ruler to the
bar and the outside of a cutter. If a gap is
observed between them, the rail is normal.
Otherwise, the bar rail is worn. Such a bar needs
to be corrected or replaced.
(1) Appropriate
gauge checker 
(2) Depth gauge
standard
(3) Make the shoul-
der round: 
0.25”
- 0.64 mm
(A) Cutter length
(30°) Filing angle
(85°) Side plate angle
(60°) Top plate cutting
angle
(1) Ruler
(2) Gap
(3) No gap
(4) Chain tilts
8. Maintenance of Saw Chain and Guide Bar     
						

							EN 189. Troubleshooting Guide
9. Troubleshooting Guide
PROBLEME CAUSE REMEDY
1)
Starting failure
2)Lack of
power/Poor accel-
eration/Rough
idling
3)Oil does not
come out–Check fuel for water or substandard
mixture. 
–Check for engine flooding.
–Check spark ignition. 
–Check fuel for water or substandard
mixture. 
–Check air filter and fuel filter for
clogging. 
–Check carburetor for inadequate
adjustment.
–Check oil for substandard quality. 
–Check oil passage and ports for
clogging.–Replace with proper fuel.
–Remove and dry the spark plug.
–Then pull the starter again with no
choke. 
–Replace with a new plug. 
–Replace with proper fuel.
–Clean.
–Readjust speed needles. 
–Replace. 
–Clean.
If the unit seems to need further serv-
ice, please consult with an authorized
service shop in your area.