Global garden products 3700 Manual

INTRODUCTION

We hope that you will be completely satisfied with this machine and that it fully meets your expectations. This manual has been compiled in order to provide you with all the information you need to get acquainted with the machine and use it safely and efficiently. Don't forget that it is an integral part of the machine, so keep it handy so that it can be consulted when necessary, and pass it on to a further user if you resell or loan the machine.
Your new machine has been designed and manufactured in pursuance with current regulations, and is safe and reliable if used in compliance with the instructions provided in this manual (proper use). Using the machine in any other way, or non-compliance with the safety specifications relative to use, maintenance and repair is considered "improper use" which will invalidate the warranty, relieve the manufacturer from all liabilities, and the user will consequently be liable for all and any damage or injury to himself or others.
Since improvements are periodically made to our products, you may find slight differences between your machine and the descriptions contained in this manual. Certain modifications can be made to the machine without prior warning and without the obligation to update the manual, although the essential safety and function characteristics will remain unaltered. In case of any doubts, please contact your dealer. And now enjoy your work!

IDENTIFICATION OF MAIN COMPONENTS

MAIN COMPONENTS

1. Power unit
2. Spiked bumper
3. Front hand guard
4. Front handgrip
5. Rear handgrip
6. Chain catcher
7. Bar
8. Chain
9. Bar cover
10. Identification plate

CONTROLS AND REFUELLING

11. Engine stop switch
12. Throttle trigger
13. Throttle trigger lockout
14. Starter
15. Choke
16. Primer

21. Fuel tank cap
22. Chain oil tank cap
23. Air cleaner cover

IDENTIFICATION PLATE

10.1) Conformity marking in accordance 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) Manufacturer's model of reference
10.5) Machine model
10.6) Serial number
10.7) Year of manufacture
10.8) Article Code
10.9) Emission number

Maximum noise and vibration levels

1. The failure to use this machine correctly can be hazardous for oneself and others.
   
   
2. Beware of kickback! Kickback is the rapid and uncontrollable backward motion of the chain-saw in the direction of the operator. Always work in complete safety. Use chains with safety links that limit kickback.
   
3. Never hold the machine with one hand! Hold the machine fast with both hands to control the machine and reduce the risk of kickback.
   

4. Read the instruction manual before using the machine.
   
5. If you are using the machine every day in normal conditions, you can be exposed to a noise level of 85 dB (A) or higher. Wear earmuffs or earplugs and a protective helmet.
   
6. Wear gloves and protective footwear!
   

EXPLANATORY SYMBOLS ON THE MACHINE (if present)

11. Fuel tank
    
12. Chain oil tank and oil flow adjuster
    
13. Carburettor adjustments
    L = low speed mixture adjuster
    H = high speed mixture adjuster
    T - IDLE - MIN = idle speed adjuster
    
14. Choke
    
15. Primer
    
16. Chain brake (the symbol shows the position in which the brake is released)
    
17. Direction in which the chain is mounted.
    

1. TRAINING
   1. Read the instructions carefully. Become acquainted with the controls and the proper use of the machine. Learn how to stop the engine quickly.
   2. Only use the machine for the purpose for which it was designed, that is for"felling, bucking and delimbing trees with dimensions suitable for the length of the bar" or wooden objects with the same characteristics. Any other use may be dangerous and damage the machine. Examples of improper use may include, but are not limited to:
      • trimming hedges;
      • intaglio carving;
      • sectioning pallets, crates and various packingmaterials;
      • sectioning furniture or other materials withnails, screws or other metal components;
      • butchering meat;
      • using the machine to lift, move or split objects;
      • using the machine while fastened to fixed sup-ports.
   3. Never allow children or persons unfamiliar with these instructions to use the machine. Local regulations may restrict the age of the operator.
   4. The machine must never be used by more than one person.
   5. Never use the machine:
      • when people, especially children or pets are inthe vicinity;
      • f the user is tired or unwell, or has taken medici-ne, drugs, alcohol or any substances which may slow his reflexes and compromise his judgement;
      • if the user is not capable of holding the machinefirmly with two hands and/or remaining standing on the ground whilst working.
   6. Remember that the operator or user is responsible for accidents or hazards occurring to other people or their property.
2. PREPARATION
   1. Always wear adequate clothing which does not hamper movements when using the machine.
      • Always wear slim-fitting protective clothing, fit-ted with shear-proof protection devices.
      • Always wear a helmet, protective gloves, eye-goggles, a half-mask respirator and safety antishear boots with non-slip soles.
      • Always wear ear and hearing protection devi-ces.
      • Never wear scarves, shirts, necklaces, or anyhanging or flapping accessory that could catch in the machine or in any objects or materials in the work area
      • Tie your hair back if it is long.
   2. 
      
      Fuel is highly flammable:
      • keep the fuel in containers which have beenspecifically manufactured and homologated for such use;
      • never smoke when handling fuel;
      • slowly open the fuel tank to allow the pressureinside to decrease gradually;
      • top up the tank with fuel in the open air, using afunnel;
      • add fuel before starting the engine. Never remove the fuel tank cap or add fuel while the engine is running or when the engine is hot;
      • if you have spilt some fuel, do not attempt tostart the engine but move the machine away from the area of spillage and avoid creating any source of ignition until the fuel has evaporated and fuel vapours have dissipated;
      • immediately clean up all traces of fuel spilt onthe machine or on the ground;
      • never start the machine in the same place yourefilled it with fuel;
      • make sure your clothing does not come intocontact with the fuel, on the contrary, change your clothes before starting the engine;
      • always put the tank and fuel container capsback on and tighten well.
   3. Replace faulty or damaged silencers.
   4. Before using the machine, check its general condition and in particular:
      • the throttle trigger and the safety lever mustmove freely, they must not need forcing and should return automatically and rapidly back to the neutral position;
      • the throttle trigger must remain locked until thesafety lever is pressed;
      • the engine stop switch must easily move fromone position to the other;
      • the electric cables and in particular the sparkplug cable must be in perfect condition to avoid the generation of any sparks, and the cap must be correctly fitted on the spark plug;
      • the machine handgrips and protection devicesmust be clean and dry and well fastened to the machine;
      • the chain brake must be in perfect working or-der;
      • the bar and the chain must be fitted correctly;
      • the chain must be tensioned correctly.
   5. Before starting your work, make sure that all the protection devices are correctly fitted.
3. OPERATION
   1. Do not operate the engine in a confined space where dangerous carbon monoxide fumes can collect.
   2. Work only in daylight or good artificial light.
   3. Take on a firm and well-balanced position:
      • where possible, avoid working on wet, slippery ground or in any case on uneven or steep ground that does not guarantee stability for the operator;
      • avoid using unstable ladders or platforms;
      • do not work with the machine above yourshoulders;
      • never run, but walk carefully paying attention tothe lay of the land and any eventual obstacles.
      • avoid working alone or in an isolated place, incase you have to find help after an accident.
   4. Make sure the machine is securely locked when you start the engine:
      • start the motor in an area at least 3 metres fromwhere you refuelled;
      • check that there are no persons in the vicinity ofthe machine;
      • do not direct the silencer and therefore theexhaust fumes towards inflammable materials.
      • watch out for flying debris caused by the move-ment of the chain, especially when it hits obstacles or foreign objects.
   5. Do not change the engine tuning and do not rev the engine excessively at maximum speed.
   6. Do not strain the machine too much and do not use a small chain-saw for heavy-duty sawing. If you use the right machine, you will reduce the risk of hazards and improve the quality of your work.
   7. Check that when the machine is running idle, there is no movement of the chain and, after pressing the throttle trigger, the engine quickly returns to minimum speed.
   8. Take care not to hit the bar hard against foreign objects or flying debris caused by the movement of the chain.
   9. Stop the engine:
      • whenever you leave the machine unattended;
      • before refuelling.
   10. Stop the engine and disconnect the spark plug cable:
       • before cleaning, checking or working on themachine;
       • after striking a foreign object. Inspect the ma-chine for any damage and make repairs before restarting it again;
       • if the machine begins to abnormally vibrate(Immediate look for the cause of the vibrations and take for necessary controls at a Specialised Centre).
       • when the machine is not in use.
4. MAINTENANCE AND STORAGE
   1. Keep all nuts, bolts and screws tightly fastened to be sure the equipment is in safe working condition.Routine maintenance is essential for safety and for maintaining a high performance level.
   2. Do not store the machine with fuel in the tank in an area where the fuel vapours could reach an open flame, a spark or a strong heat source.
   3. Allow the engine to cool before storing in any enclosure.
   4. To reduce fire hazards, keep the engine, exhaust silencer and fuel storage area free from sawdust, branches, leaves, or excessive grease; never leave containers with the cut debris inside the storage area.
   5. Se il serbatoio deve essere svuotato, effettuare questa operazione all'aperto e a motore freddo.
   6. If the fuel tank has to be emptied, this should be done outdoors once the engine has cooled down.
   7. Make sure the chain is well sharpened. Any work on the chain and bar require specific experience and special tools. For safety purposes, we recommend you contact your dealer to ensure work is done correctly.
   8. For safety reasons, never use the machine with worn or damaged parts. Damaged parts are to be replaced and never repaired. Only use original spare parts. Parts that are not of the same quality can seriously damage the equipment and compromise safety.
   9. Before putting the machine away, check you have removed wrenches or tools used for maintenance.
   10. Store the machine out of the reach of children!
5. TRANSPORTATION AND HANDLING
   1. Whenever the machine is to be handled or transported you must:
      • turn off the engine, wait for the chain to stopand disconnect the spark plug cap;
      • mount the bar cover;
      • only hold the machine using the handgrips andposition the bar in the opposite direction 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 fasten it firmly in place to avoid it from tipping over, which may cause damage or fuel spillage.
6. HOW TO READ THE MANUAL
   Certain paragraphs in the manual contain particularly significant information and are marked with various levels of highlighting with the following meaning:

NOTE
or

These give details or further information on what has already been indicated, and aim to prevent both damage to the machine, and the machine from causing damage.

Non-observance will result in the risk of injury to oneself or others.

Non-observance will result in the risk of serious injury or death to oneself or others.

MACHINE ASSEMBLY

The machine is supplied with the bar and chain dismantled and the oil and fuel tanks empty.

Unpacking and completing the assembly should be done on a flat and stable surface, with enough space for machine handling and its packaging, always making use of suitable equipment.
Disposal of the packaging should be done in accordance with the local regulations in force.

Always wear heavy-duty gloves when handling the bar and chain. Mount the bar and chain very carefully so as not to impair the safety and efficiency of the machine. If in doubt, contact your dealer.
Before fitting the bar, make sure the chain brake is not engaged; this is done by pulling the front hand guard right back towards the body of the machine.

1. BAR AND CHAIN MOUNTING
   • Unscrew the nuts and remove the clutch coverto get to the drive sprocket and point where the bar is to be fitted (Fig. 1).
     
   • Remove the plastic spacer, (1); this spacermust be used exclusively when transporting the machine in its packaging and must not be used at any other time (Fig. 1).
   • Mount the bar (2) by inserting the stud bolts inthe groove and push it towards the back of the machine body (Fig. 2).
     
   • Mount the chain in the right direction aroundthe drive sprocket and along the bar rail (Fig. 3). If the tip of the bar has a nose sprocket, make sure the drive links fit correctly in the sprocket rims.
     
   • In 3700 - 4000 Models: Check that the chain tension adjuster pin (3) is fitted properly in the hole on the bar; if it isn't, turn the chain tension adjuster screw (4) using a screwdriver until the pin is completely inserted (Fig. 4).
     
   • Fit the guard back on without tightening thenuts.
   • In 4500 Models: check that the chain tension adjuster pin (3a) of the clutch cover is fitted properly in the hole on the bar; if it isn't, turn the chain tension adjuster screw (4a) using a screwdriver until the pin is completely inserted (Fig. 5).
     
   • Turn the chain tension adjuster screw (4 or 4a)to adjust the chain tension (Fig. 4 and 5).
   • Raise the bar and tighten the guard nuts secu-rely using the wrench (Fig. 6).
     
2. CHECKS AFTER MOUNTING THE BAR AND THE CHAIN
   • Check the chain tension. The tension is cor-rect when the drive links do not slip out of the chain guides if you hold the chain in the middle of the bar (Fig. 7).
     
   • Using a screwdriver, make the chain run alongthe guides to check it moves smoothly without resistance.

CHECKING THE MACHINE

Before starting work please:

• check that all the screws on the machine andthe bar are tightly fastened;
• check that the chain is sharp and there are nosigns of any damage;
• check that the air filter is clean;
• check that the protection devices are well fas-tened and working efficiently;
• check that the handgrips are well fastened;
• check that the chain brake is working effi-ciently.

PREPARING THE FUEL

This machine is fitted with a two-stroke engine which requires a mixture of petrol and lubricating oil.

Using petrol alone will damage the motor and will cause for invalidation of the warranty.

Only use quality fuels and oils to maintain high performance and guarantee the duration of the mechanical parts over time.

• Petrol characteristics
  Only use unleaded petrol with a fuel grade of at least 90 N.O.
  
  Unleaded petrol tends to create deposits in the container if preserved for more than 2 months. Always use fresh petrol!
• Oil characteristics
  Only use top quality synthetic oil specifically for two-stroke engines.
  Your dealer can provide you with oils which have been specifically developed for this type of engine, and which are capable of guaranteeing a high level of protection.
  The use of these oils makes it possible to prepare a 2% mixture, consisting in 1 part oil to 50 parts petrol.
• Preparation and preservation of the fuel mixture
  
  Petrol and the fuel mixture are highly inflammable!
  • Keep the petrol and fuel mixture in homolo-gated fuel containers, in safe place, away from any flames or heat sources.
  • Never leave the containers within the reachof children.
  • Never smoke whilst preparing the mixtureand avoid inhaling the petrol fumes.

The chart indicates the amount of petrol and oil to use to prepare the fuel mixture according to the type of oil used.

To prepare the fuel mixture:

• Place about half the amount of petrol in ahomologated tank
• Add all the oil, according to the chart.
• Add the rest of the petrol.
• Close the top and shake well.

The fuel mixture tends to age. Do not prepare excessive amounts of the fuel mixture to avoid deposits from forming.

Keep the petrol and fuel mixture containers separate and easily identifiable to avoid the mistake of using one in place of the other.

Periodically clean the petrol and fuel mixture containers to remove any eventual deposits.

HOW TO START - USE – STOP THE ENGINE

STARTING THE ENGINE

The engine must be started in an area at least 3 metres from where you refilled the fuel tank.
Before starting the engine:

• Place the machine firmly on the ground.
• Take off the bar cover.
• Make sure the bar is not touching the groundor any other object.

Cold starting
NOTE
A "cold" start of the engine means starting it after at least 5 minutes from when it was switched off or after refuelling.
To start the engine (Fig. 8):

1. Check that the chain brake is engaged (withthe front hand guard pushed forward).
2. Set the switch (1) to «START».
3. Pull the knob (2) as far as possible to engagethe starter.
4. Press the primer device button (3) 3 or 4 times to prime the carburettor.
5. Hold the machine firmly on the ground, withyour hand on the handgrip and your foot in the rear handgrip, to avoid losing control during starting (Fig. 9).
   
   If the machine is not held firmly, the force of the engine could cause the user to lose his balance or direct the bar towards him or an obstacle.
   
6. Pull the starter rope slowly for 10 - 15 cm until you feel some resistance, then tug it hard a few times until you hear the engine turn over.
   
   Never wind the starter cable around your hand.
   
   Never start the chain saw by holding on to the starter cable and allowing it to fall. This is an extremely dangerous method as you lose complete control over the machine and the chain.
   
   To avoid breaking the starter rope, do not pull the whole length of it or let it slide along the edge of the cable guide hole. Release the starter gradually, to avoid letting it fly back uncontrollably.
7. Pull the starter rope again until the enginestarts as normal.
   NOTE
   If the machine has difficulty starting, allow the starter knob to run back half way to prevent flooding the engine.
   NOTE
   If the starter rope is pulled repeatedly with the choke on, it may flood the engine and make starting difficult. If you have flooded the engine, remove the spark plug and gently pull the handle on the starter rope to eliminate any excess fuel; then dry the spark plug electrodes and replace it on the engine.
8. When the engine has started, press the throttle trigger to disconnect the starter and allow the engine to idle.
   
   Do not let the engine run at high power with the chain brake engaged, as this could cause overheating and damage to the clutch.
9. Let the engine run idle for at least 1 minutebefore using the machine.

Hot starting
When hot starting (immediately after stopping the engine), follow the procedure indicated above in points 1 - 2 - 5 - 6 - 8.

USE OF THE ENGINE

Always disengage the chain brake, pulling the lever towards you before using the accelerator.
The chain speed is regulated by the throttle trigger (1) on the rear handgrip (2).
The throttle trigger only works if the lockout (3) is pressed at the same time.
The movement is transmitted from the engine to the chain by a centrifugal mass clutch that prevents the chain from moving when the engine is running at minimum speed.

Do not use the machine if the chain moves when the engine is running idle; in this case, contact your dealer.
The correct running speed will be achieved by pressing the throttle trigger (1) as far as possible.

Avoid using the engine at full power for the first 6-8 working hours.

STOPPING THE ENGINE

(Fig. 10)
To stop the engine:

• Release the throttle trigger (1) and allow theengine to run idle for a few seconds.
• Set the switch (4) to "STOP".

When you have reduced speed to a minimum, it may take a few seconds for the chain to stop.

USING THE ANTI-FREEZE DEVICE (For models 3700 and 4000 only)

Operating chain saws in temperatures of 0 – 5°C at times of high humidity may result in ice forming within the carburetor, and this in turn may cause the output power of the engine to be reduced or for the engine to fail to operate smoothly.
This product has accordingly been designed with a ventilation hatch on the right side of the surface of the cylinder cover to allow warm air to be supplied to the engine and to thereby prevent icing from occurring.
Under normal circumstances the product should be used in the normal operating mode, i.e., in the mode which it is set at the time of shipment. However when the possibility exists that icing may occur, the unit should be set to operate in the anti-freeze mode before use.
To switch from "Normal" mode to "Anti-freeze" mode (and vice versa) (Fig. 11):

1. Switch the engine off.
2. Remove the air filter cover (1) and the air filter (2).
3. Remove the choke (3) from the cylinder cover (4):
4. Unscrew the screws (5) which secure thecylinder cover in place (three screws inside and one outside) and remove the cylinder cover.
5. Use your fingers to press the anti-freeze cap(6) on the right side of the cylinder cover and slide it out from its seat.
6. Turn the anti-freeze cap (6) so that the"SNOW" symbol is facing upwards and then replace the cap.
7. Replace the cylinder cover and all the otherparts in their original position.

NOTE
If the machine is used in anti-freeze mode at higher temperatures, this may cause difficulties when starting the engine and during use due to the incorrect engine speed. Always check that the machine is switched to normal mode (with the "SUN" symbol facing upwards) if there is no danger of ice forming.

USING THE MACHINE

To respect people and the environment:

• Try not to cause any disturbance.
• Scrupulously comply with local regulationsand provisions for the disposal of waste materials after sawing.
• Scrupulously comply with local regulationsand provisions for the disposal of oils, petrol, damaged parts or any elements which have a strong impact on the environment.

Always wear suitable clothing when using the machine. Your dealer can provide you with all the information on the most suitable accident-prevention devices to guarantee your safety. Wear antivibration gloves. All the above-mentioned precautions do not however guarantee the prevention of certain risks – i.e. Raynaud's phenomenon or Carpal tunnel syndrome. For operators who use this machine for prolonged periods, it is therefore recommended to have periodic check-ups on the hands and fingers.
If any of the above mentioned symptoms should appear, please contact a physician immediately.

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 passive medical devices that operators may be wearing; this could be risky for their health conditions. All those using medical devices should always consult their GP, or the device manufacturer, before using this machine.

It takes specific training to use the machine for felling and delimbing.

CHAIN BRAKE

This machine comes with an automatic brake that stops the chain when kickback occurs during cutting.
This brake can be operated manually by pushing the front guard forward. To release the brake, pull the front guard towards the handgrip until you hear a click.

Do not use the machine if the chain brake does not function correctly and have it inspected by your dealer.

USING THE MACHINE

• Check that the chain brake is working efficiently.
  • Make sure you are holding the machine firmlywith both hands when you start the engine
  • Use the accelerator level to keep the chainmoving, push the brake lever forwards using the back of you left hand; the chain must stop immediately.
  • When the chain has stopped, immediatelyrelease the accelerator lever.
  • Release the brake.

CHECKING THE CHAIN TENSION
The chain tends to stretch gradually as you work, so you need to check its tension frequently.

Never work with the chain loose, as it can be hazardous if the chain slips out of its guides.

CHECKING THE OIL DELIVERY

Never use the machine without lubrication! The oil tank may get almost empty every time the fuel runs out. Make sure you top up the oil tank every time you refuel the chain-saw.

Make sure the bar and the chain are in place when you check the oil delivery.
Start the engine, keep it running at medium power and check if the chain oil is delivered as shown in the figure (Fig. 12).
You can adjust the chain oil flow using a screwdriver on the adjuster screw (1 or 1a) of the oiler, which is on the bottom of the machine (Fig. 12).

DIRECTIONS FOR USE AND CUTTING TECHNIQUES
Before felling or delimbing for the first time, practise sawing logs on the ground or on trestles, so that you can get familiar with the machine and the most suitable sawing techniques.

When running, the machine must always be firmly held in both hands, with the right hand on the front handgrip and the left hand on the rear handgrip, even if the operator is left-handed.

Stop the engine immediately if the chain stops during sawing. Beware of kickback, which can occur if the bar contacts an obstacle.
Kickback occurs when the tip of the chain comes in contact with an object or when the wood contracts and jams the chain during sawing.
This contact with the tip of the chain can cause a rapid backward motion, pushing the guide bar up and towards the operator. This also happens when the chain is jammed along the upper part of the bar. In both cases, kickback can cause the operator to lose control of the chain-saw, leading to serious consequences.

Delimbing (Fig. 13)

Make sure there is nothing or nobody in the area where the branches will fall.

1. Stand opposite the branch you want to cut.
2. Start cutting lower branches followed by thehigher ones.
3. Cut downwards to prevent the bar from getting jammed.

Felling (Fig. 14)

When felling on slopes, always stand uphill from the tree and check that the felled trunk cannot cause damage if it rolls down the hill.

1. Decide where the tree should fall – youshould consider the wind, the natural lean of the tree, the position of the heaviest branches and how easy the work is after felling, etc.
2. Clear the area around the tree and find a stable place to stand.
3. Plan obstacle-free escape routes at a 45° angle back and away from the direction of fall. These routes must allow you reach a safe area at a distance of about 2.5 times the length of the tree to be felled
4. On the side of the fall, mark a felling notcharound a third of the trunk's diameter.
5. Cut the tree on the other side, slightly abovethe bottom of the notch, leaving the uncut wood to act as a "hinge" (1) of approx. 5-10 cm.
6. Reduce the thickness of this hinge withoutpulling out the bar, until the tree falls.
7. In particular or unstable conditions, you cancomplete felling by inserting wedges (2) on the opposite side of the fall, and hitting them with a hammer until the tree falls.

Bucking (Fig. 15)

Be careful of where the branches are lying on the ground, the risk of them being under tension, the direction the branch may go during cutting and the risk of the tree being unstable after the branch has been cut..

1. Check the direction in which the branch isattached to the tree
2. First cut on the side where the branch bendsand then finish cutting on the opposite side.

Sawing logs (Fig. 16)
It is easier to saw a log using the spiked bumper.

1. Dig the spiked bumper into the log and use itas a pivot. Cut with an arched motion to make the bar penetrate the wood.
2. Repeat several times if necessary, changingthe point where you plant the spiked bumper.

Sawing a log on the ground (Fig. 17)
Cut up to half the diameter, roll the log over and finishing sawing on the other side.

Sawing a raised log (Fig. 18)

1. If you are sawing the overhanging end of asupported log (A), first cut a third of the diameter from the bottom upwards, then finish from the top.
2. If you are sawing between two supports (B),cut a third of the diameter from the top downwards, then finish from the bottom.

END OF OPERATIONS

When you have finished your work:

• Switch off the engine as indicated above
• Wait for the chain to stop and then mount thebar cover.

MAINTENANCE AND STORAGE

CYLINDER AND SILENCER (Fig. 19)
To reduce fire risks, periodically clean the cylinder flaps with compressed air and clear the silencer area to get rid of sawdust, branches, leaves or other debris.

STARTING SYSTEM

To avoid overheating and damage to the engine, always keep the cooling air vents clean and free of sawdust and debris.
The starter rope must be replaced as soon as it shows signs of wear.

CLUTCH UNIT

Keep the clutch bell free of sawdust and debris, remove the casing and replace it correctly when the operation has been completed. Have your dealer check the greasing of the internal bearing every 30 hours (approx.).

CHAIN BRAKE

Regularly check the efficiency of the chain brake and the condition of the metal band around the clutch bell, remove the casing and replace it correctly when the operation has been completed.
Replace this band when the points in contact with the clutch bell wear down to about half the thickness of the two ends not subject to rubbing.

CHAIN SPROCKET

Regularly check the condition of the sprocket with your local retailer and replace it when wear exceeds the accepted limits.
Do not mount a new chain with a worn sprocket or vice-versa.

LUBRICATION HOLE

Periodically remove the casing remove the bar and check that neither the machine lubrication holes (1) or the bar (2) are clogged.

CHAIN CATCHER

This is an important safety device that restrains the chain if it breaks or degrooves.
Regularly check the condition of the chain catcher and replace it if it gets damaged.

NUTS AND SCREWS

Periodically check that all the nuts and screws are securely tightened and the handgrips are tightly fastened.

CLEANING THE AIR FILTER

Cleaning the air filter is essential to guarantee the efficiency and duration of the machine. Do not work with a damaged filter or without a filter, as this could permanently damage the engine.
It must be cleaned after every 8-10 working hours.
Clean the filter as follows:

• Unscrew the knob (1) and remove the cover (2).
• Remove the filter element (3) and tap it gentlyto remove any dirt and, if necessary, clean it with a brush.
• If it is completely clogged, use a screwdriverto separate the two parts (3a and 3b) and wash them in clean petrol. If you are using compressed air, aim the jet so that it blows from the inside towards the outside.
• Replace the two filter element parts by press-ing on the edges until you hear them click into place.
• Fit the filter element (3) and the cover (2) backon.

CHECKING THE SPARK PLUG

Periodically remove and clean the spark plug using a metal brush to get rid of any deposits. Check and reset the correct distance between the electrodes.
Replace the spark plug and fasten it firmly 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 manufacturer to achieve maximum performance in all situations, with a minimum emission of toxic gas in compliance with the regulations in force.
When performance is poor, first check that the chain runs smoothly and the bar rails are not distorted, then contact your dealer to check the carburetion and the engine.

Tuning minimum speed

The chain must not move when the engine is running idle. If the chain moves when the engine is running idle, contact your dealer to correctly regulate the engine.

SHARPENING THE CHAIN

To ensure that the chainsaw works safely and efficiently, it is essential that the cutting components are well-sharpened.
Sharpening is necessary when:

• The sawdust looks like dust.
• Cutting becomes more difficult.
• The cut is not straight.
• Vibrations increase.
• Fuel consumption increases.

If the chain is not sufficiently sharpened, the kick-back's risk increases.
A specialized centre will sharpen the chain using the right tools to ensure minimum removal of material and even sharpness on all the cutting edges.
If you sharpen the chain yourself, use special round-section files with the right diameter depending on the type of chain (see "Chain Maintenance Table"). You need a certain amount of skill and experience to avoid damaging the cutting edges.

Sharpen the chain as follows (Fig. 24):

• Switch off the engine, release the chain brakeand secure the bar with the chain in a vice so that the chain can run smoothly.
• Tighten the chain if it is loose.
• Mount the file in the guide and then insert it inthe tooth at a constant angle from the cutting edge.
• Sharpen in a forward motion a few times andrepeat this on all the cutting edges facing the same way (right or left).
• Turn the bar over in the vice and repeat on allthe other cutting edges.
• Check that the limiter tooth does not stick outfurther than the inspection instrument and file any projecting parts with a flat file, rounding off the edge.
• After sharpening, remove all traces of filing and dust and lubricate the chain in an oil bath.

Chain maintenance table

The specifications of the chain and the bar homologated for this machine are shown in the "EC Conformity Statement" provided. Do not use other types of chains or bars for safety reasons. The table gives the sharpening data for different types of chains, but this does not mean you can use different chains from the homologated one.

Chain pitch		Limiter tooth level (a)		File diameter (d)
inches	mm	inches	mm	inches	mm
3/8 Mini	9.32	0.018	0.45	5/32	4.0
0.325	8.25	0.026	0.65	3/16	4.8
3/8	9.32	0.026	0.65	13/64	5.2
0.404	10.26	0.031	0.80	7/32	5.6

Replace the chain whenever:

• The length of the cutting edges reduces to 5mm or less;
• There is too much play between the links andthe rivets.

BAR MAINTENANCE

To avoid asymmetrical wear on the bar, make sure it is turned over periodically.
To keep the bar in perfect working order, proceed as follows:

• grease the bearings on the nose sprocket (ifpresent) with the syringe;
• Clean the bar groove with the scraper (notincluded);
• clean the lubrication holes;
• with a flat file, remove burr from the edges andlevel off the guides.

Replace the bar whenever:

• the groove is not as deep as the height of thedrive links (which must never touch the bottom);
• the inside of the guide is worn enough tomake the chain lean to one side.

EXTRAORDINARY MAINTENANCE

All maintenance operations not foreseen in this manual must be performed exclusively by your dealer.
All and any operations performed in unauthorised centres or by unqualified persons will totally invalidate the warranty.

STORAGE

After every work stint, clean the machine thoroughly to remove all dust and debris, and repair or replace any faulty parts.
The machine must be stored in a dry place away from the elements and with the bar cover correctly fitted.

LONG PERIODS OF DISUSE

If you are not going to use the machine for a period of more than 2-3 months, we recommend you do a few things before putting it away. This will make it easier when you want to use the machine again and will also prevent permanent damage to the engine.

Storage
Before putting the machine away:

• Empty the fuel tank.
• Start the engine and run it idle until it comes toa halt, so that it uses up all the fuel that is left in the carburettor.
• Wait for the engine to cool down and removethe spark plug.
• Pour a teaspoon of (new) 2-stroke engine oilinto the spark plug slot.
• Pull the starter rope several times to deliver oilto the cylinder..
• Replace the spark plug with the piston in thedead end upper position (visible from the spark plug slot when the piston is at maximum stroke).

Restarting work
When you wish to start using the machine again:

• Remove the spark plug.
• Pull the starter rope a few times to eliminateexcess oil.
• Check the spark plug as described in chapter"Checking the spark plug".
• Prepare the machine as indicated in the para-graph entitled "Preparing for work".

TROUBLESHOOTING

ACCESSORIES

The table contains a list of all possible combinations 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 chain are actions made solely by the user, the latter assumes responsibility for damages of any kind due to such actions. When in doubt or if lacking knowledge of the specificity of each bar or chain, contact your retailer or specialised gardening centre.

Bar and chain combinations