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1. For Safe Operation

EN 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 failu-
re to comply with the instructions for safe use, maintenance and repair shall be considered as “improp-
er use”, cause the warranty to become null and void and relieve the Manufacturer from all responsi-
bility, 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!

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 WARNINGS

1. Read, understand and follow all warnings.
2. Warning! Danger of kickback.
3. Use the chain saw with two hands.
4. Read operator's 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 ......................................................... 1

2.

Explanation of Symbols on the Machine ....................... 6

3.

Installing Guide Bar and Saw Chain .............................. 7

4.

Fuel and Chain Oil  ......................................................... 8

5.

Operating the Engine  ................................................... 10

6.

Sawing .......................................................................... 13

7.

Maintenance ................................................................. 15

8.

Maintenance of Saw Chain and Guide Bar  ................. 17

9.

Troubleshooting Guide ................................................. 18

10. Accesories ................................................................... 18

Contents

1. For Safe Operation

Maximum noise and vibration levels PR 270 - 280

Operator ear noise pressure level
(ISO 22868) ....................................................................... db(A) 108
- Measurement uncertainty (2006/42/CE - EN 27574)  .... db(A)

1,3

Measured acoustic output level (ISO 22868) ................... db(A) 108
- Measurement uncertainty (2006/42/CE - EN 27574) ..... db(A)

1,6

Vibration level (ISO 22867) ................................................ m/s

10,8

- Measurement uncertainty (2006/42/CE - EN 12096)  ..... m/s

2

1,1

TRANSLATION OF THE ORIGINAL INSTRUCTIONS (ISTRUZIONI ORIGINALI)

Summary of Contents for PR270

Page 1: ...hanged In the event of doubt please contact your dealer Enjoy your work 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 WARNINGS 1 Read understand and follow all warnings 2 Warning Danger of kickback 3 Use the chain saw with two hands 4 Read operator s instructi...

Page 2: ...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 un...

Page 3: ...ack 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 ra pidly back towards the operator Either of these reactions ma...

Page 4: ...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 ...

Page 5: ...ust the saw away from the body while holding the pull starter cord in the left hand The chain brake should always be engaged be fore 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 prefer...

Page 6: ... 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 scr...

Page 7: ...n fit the saw chain around the bar and sprocket 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 ...

Page 8: ...bustion 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 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 th...

Page 9: ...ch have been left unused for a period of one month or 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 WARNING 6 In the case of scrapping the used mixed oil container scrap it only at an...

Page 10: ...t 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 engi ne make sure the saw chain is not contacting 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 ...

Page 11: ...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 ...

Page 12: ...h 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 ...

Page 13: ...s equipped with a chain brake that will stop the chain in the event of kickback if operating properly You must check the chain brake operation before each usage by run ning 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 clut...

Page 14: ...ction 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 F...

Page 15: ... the oiling port Sprocket nose Grease 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 ...

Page 16: ... 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 a...

Page 17: ... 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 ba...

Page 18: ...the unit seems to need further serv ice please consult with an authorized service shop in your area The table contains a list of all possible combina tions between bar and chain indicating those which may be used on each machine marked with the symbol In consideration that the selection application and usage of bar and WARNING chain are actions made solely by the user the latter assumes responsibi...

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