Zenoah GZ3500T Istruzioni per l'uso

GZ3500T

EN Operator's manual 2-31

DE Bedienungsanweisung 32-63

EL Οδηγίες χρήσης 64-97

ES Manual de usuario 98-129

FR Manuel d'utilisation 130-161

IT Manuale dell'operatore 162-193

PT Manual do utilizador 194-225

Contents

Introduction..................................................................... 2

Safety..............................................................................4

Assembly........................................................................ 9

Operation........................................................................ 9

Maintenance................................................................. 16

Troubleshooting............................................................ 27

Transportation and storage...........................................28

Technical data.............................................................. 28

Accessories.................................................................. 29

EC Declaration of Conformity....................................... 31

Introduction

Product description

The Zenoah GZ3500T is a chainsaw model with a

combustion engine.

Work is constantly in progress to increase your safety

and efficiency during operation. Speak to your servicing

dealer for more information.

Intended use

This product is for professional tree maintenance such

as pruning and to disassemble trees in sections.

Note: National regulations can set limit to the operation

of the product.

Product overview

3

2

4

6

5

8

7

10

1

23

11

22

21

12

34

13

14

15

9

19

16

24

25

35

26

17

20

27

28

18

30

31

33

29

9

32

1. Throttle trigger

2. Throttle trigger lockout

3. Air filter cover

4. Air filter

5. Spark plug cap and spark plug

6. Fuel tank

7. Starter rope handle

8. Starter housing

9. Vibration damping system, 3 units

10. Chain oil tank

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11. Muffler

12. Chain brake and front hand guard

13. Start/stop switch

14. Choke control

15. Air purge bulb

16. Clutch cover

17. Chain tensioning screw

18. Brake band

19. Chain catcher

20. Spiked bumper

21. Saw chain

22. Guide bar

23. Bar tip sprocket

24. Transport guard

25. Operator's manual

26. Combination wrench

27. Top handle

28. Rope eyelet

29. Information and warning decal

30. Carburetor adjustment screws

31. Product and serial number plate

32. Oil pump adjustment screw

33. Front handle

34. Bar nut

35. Screwdriver

Symbols on the product

Careless or incorrect use of this product can

result in serious or fatal injury to the operator

or others.

Read the operator's manual carefully and

make sure you understand the instructions

before you use this product.

Always wear approved protective helmet,

approved hearing protection and protective

goggles or a visor.

This product is in accordance with

applicable EC Directives.

Noise emissions to the environment

according to European Directive 2000/14/EC

and New South Wales legislation "Protection

of the Environment Operations (Noise

Control) Regulation 2017". Noise emission

data can be found on the machine label and

in the chapter

Technical data on page 28

.

Both of the operator's hands must be used

to operate the chainsaw.

Never operate the chainsaw holding it with

one hand only.

Never let the guide bar tip come in contact

with any object.

Warning! Kickback may occur when the

nose or tip of the guide bar touches an

object, and cause a lightning fast reverse

reaction, kicking the guide bar up and

towards the operator. May cause serious

personal injury.

Use appropriate protections for foot-leg and

hand-arm.

Chain brake, activated (right). Chain brake,

not activated (left).

Air purge.

Adjustment of the oil pump.

Refuelling.

Chain oil fill.

This chainsaw should only

be used by persons who

are specially trained in

tree maintenance work.

See operator's manual!

Working position.

Choke.

yyyywwxxxxx

The rating plate showing

serial number. yyyy is the

production year, ww is the

production week.

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Note: Other symbols/decals on the product refer to

certification requirements for certain markets.

Euro V Emissions

WARNING: Tampering with the engine voids

the EU type-approval of this product.

Safety

Safety definitions

Warnings, cautions and notes are used to point out

specially important parts of the manual.

WARNING: Used if there is a risk of injury or

death for the operator or bystanders if the

instructions in the manual are not obeyed.

CAUTION: Used if there is a risk of damage

to the product, other materials or the

adjacent area if the instructions in the

manual are not obeyed.

Note: Used to give more information that is necessary in

a given situation.

General safety instructions

WARNING: Read the warning instructions

that follow before you use the product.

• A chainsaw is a dangerous tool if used carelessly or

incorrectly and can cause serious injury or death. It

is very important that you read and understand the

contents of this operator’s manual.

• Under no circumstances may the design of the

product be modified without the permission of the

manufacturer. Do not use a product that appears to

have been modified by others and only use

accessories recommended for this product. Non-

authorized modifications and/or accessories can

result in serious personal injury or the death of the

operator or others.

• The inside of the muffler contain chemicals that may

be carcinogenic. Avoid contact with these elements

in the event of a damaged muffler.

• Long term inhalation of the engine’s exhaust fumes,

chain oil mist and sawdust can represent a health

risk.

• This product produces an electromagnetic field

during operation. This field may under some

circumstances interfere with active or passive

medical implants. To reduce the risk of serious or

fatal injury, we recommend persons with medical

implants to consult their physician and the medical

implant manufacturer before operating this product.

• The information in this operator's manual is never a

substitute for professional skills and experience. If

you get into a situation where you feel unsafe, stop

and seek expert advice. Contact your servicing

dealer or an experienced chainsaw user. Do not

attempt any task that you feel unsure of!

Safety instructions for operation

WARNING: Read the warning instructions

that follow before you use the product.

• This top handle chainsaw is designed specifically for

tree surgery and maintenance in the tree. Due to the

special compact handle design (closely spaced

handles), there is an increased risk of losing control.

For this reason these special chainsaws should be

used only for work in a tree by persons who are

trained in special cutting and working techniques and

who are properly secured (lift bucket, ropes, safety

harness). Regular chainsaws (with wider spaced

handles) are recommended for all other cutting work

at ground level.

• Working in a tree requires the use of special cutting

and working techniques which must be observed in

order to reduce the increased risk of personal injury.

Never work in a tree unless you have received

specific, professional training for such work,

including training in the use of safety and other

climbing equipment, such as harnesses, ropes,

belts, climbing irons, snap hooks, carabiners,

etcetera.

• Never attempt to catch falling sections. Never cut in

the tree when you are only secured with one rope.

Always use two secured ropes.

• During critical felling operations, hearing protectors

should be lifted immediately when the sawing is

completed so that sounds and warning signals can

be heard.

• Before using this product you must understand the

effects of kickback and how to avoid them. Refer to

Kickback information on page 11

for instructions.

• Never use a product that is faulty. Carry out the

safety checks, maintenance and service instructions

described in this manual. Some maintenance and

service measures must be carried out by trained and

qualified specialists. Refer to

Maintenance and

checks of the safety devices on the product on page

18

for instructions.

• Never use the product with visible damage to the

spark plug cap and ignition cable. A risk of sparking

arises, which can cause a fire.

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• Never use the product if you are fatigued, while

under the influence of alcohol or drugs, medication

or anything that could affect your vision, alertness,

coordination or judgement.

• Do not use the product in bad weather such as

dense fog, heavy rain, strong wind, intense cold,

etcetera. Working in bad weather is tiring and often

brings added risks, such as icy ground,

unpredictable felling direction, etcetera.

• Faulty cutting equipment or the wrong combination

of guide bar and saw chain increases the risk of

kickback! Only use the guide bar and saw chain

combinations we recommend, and follow the filing

instructions. Refer to

To sharpen the saw chain on

page 22

for instructions.

• Never start a product unless the guide bar, saw

chain and all covers are fitted correctly. Refer to

Assembly on page 9

for instructions. Without a

guide bar and saw chain attached to the product the

clutch can come loose and cause serious injury.

• Never start the product indoors. Exhaust fumes can

be dangerous if inhaled.

• Observe your surroundings and make sure that there

is no risk of people or animals coming in contact with

or affect your control of the product.

• Lack of concentration can lead to kickback if the

kickback zone of the bar accidentally touches a

branch, nearby tree or some other object.

• Never use a chainsaw by holding it with one hand. A

chainsaw is not safely controlled with one hand; you

can cut yourself. Always have a secure, firm grip

around the handles with both hands.

• Always hold the chainsaw firmly with your right hand

on the top handle and your left hand on the front

handle. Wrap your fingers and thumbs around the

handles. You should use this grip whether you are

right handed or left handed. This grip minimizes the

effect of kickback and lets you keep the chainsaw

under control. Do not let go of the handles!

• Never use the chainsaw above shoulder height.

• Do not use the product in a situation where you

cannot call for help in case of an accident.

• Sometimes chips get stuck in the clutch cover

causing the saw chain to jam. Always stop the

engine before cleaning.

• If the saw chain jams in the cut: stop the engine!

• Running an engine in a confined or badly ventilated

area can result in death due to carbon monoxide

poisoning.

• The exhaust fumes from the engine are hot and may

contain sparks which can start a fire. Do not start the

product indoors or near flammable material.

• Use the chain brake as a parking brake when you

start the product and when you move short

distances. Always carry the product in the front

handle. This decreases the risk that you or a person

near you get hit by the saw chain.

• Overexposure to vibration can lead to circulatory

damage or nerve damage in people who have

impaired circulation. Contact your doctor if you

experience symptoms of overexposure to vibration.

Such symptoms include numbness, loss of feeling,

tingling, pricking, pain, loss of strength, changes in

skin colour or condition. These symptoms normally

appear in the fingers, hands or wrists. These

symptoms may be increased in cold temperatures.

• It is not possible to cover every conceivable situation

you can face when using a chainsaw. Always

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exercise care and use your common sense. Avoid all

situations which you consider to be beyond your

capability. If you still feel uncertain about operating

procedures after reading these instructions, you

should consult an expert before continuing. Do not

hesitate to contact your dealer or Zenoah if you have

any questions about the use of the chainsaw. We will

willingly be of service and provide you with advice as

well as help you to use your chainsaw both efficiently

and safely. Attend a training course in chainsaw

usage if possible. Your dealer, forestry school or

your library can provide information about which

training materials and courses are available.

Personal protective equipment

WARNING: Read the warning instructions

that follow before you use the product.

• Most chainsaw accidents occur when the saw chain

touches the operator. You must use approved

personal protective equipment during operation.

Personal protective equipment does not give you full

protection from injuries but it decreases the degree

of injury if an accident occurs. Speak to your

servicing dealer for recommendations about which

equipment to use.

• Your clothing must be close-fitting but not limit your

movements. Regularly do a check of the condition of

the personal protective equipment.

• Use an approved protective helmet.

• Use approved hearing protection. Long-term

exposure to noise can result in permanent damage

to the hearing.

• Use protective glasses or a face visor to decrease

the risk of injury from thrown objects. The product

can throw objects, such as wood chips, small pieces

of wood and more, at large force. This can result in

serious injury, especially to the eyes.

• Use gloves with saw protection.

• Use pants with saw protection.

• Use boots with saw protection, steel toe-cap and

non-slip sole.

• Always have a first-aid kit with you.

• Risk of sparks. Keep fire extinguishing tools and a

shovel near to prevent forest fires.

Safety devices on the product

WARNING: Read the warning instructions

that follow before you use the product.

• Do not use a product with defective safety devices.

• Do a check of the safety devices regularly. Refer to

Maintenance and checks of the safety devices on

the product on page 18

.

• If the safety devices are defective, speak to your

Zenoah servicing dealer.

Chain brake and front hand guard

Your product has a chain brake that stops the saw chain

if you get a kickback. The chain brake decreases the

risk of accidents, but only you can prevent them.

The chain brake (A) engages manually by your left hand

or automatically by the inertia release mechanism. Push

the front hand guard (B) forward to engage the chain

brake manually.

A

B

Pull the front hand guard rearward to disengage the

chain brake.

Throttle trigger lockout

The throttle trigger lockout prevents accidental operation

of the throttle trigger. If you put your hand around the

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handle and press the throttle trigger lockout (A), it

releases the throttle trigger (B). If you release the

handle, the throttle trigger and the throttle trigger lockout

move back to their initial positions. This function locks

the throttle trigger at idle speed.

B

A

Chain catcher

The chain catcher catches the saw chain if it breaks or

derails. Correct saw chain tension and correctly applied

maintenance on the saw chain and guide bar, decrease

the risk of accidents.

Vibration damping system

The vibration damping system decreases vibration in the

handles. Vibration damping units operate as a

separation between the product body and the handle

unit.

Refer to

Product overview on page 2

for information

about where the vibration damping system is on your

product.

Start/stop switch

Use the start/stop switch to stop the engine.

Muffler

WARNING: The muffler becomes very hot

during/after operation and at idle speed.

There is a risk of fire, especially when you

operate the product near flammable

materials and/or fumes.

WARNING: Do not operate a product

without a muffler or with a defective muffler.

A defective muffler can increase the noise

level and the risk of fire. Keep fire

extinguishing tools near. Do not use a

product without, or with a broken, spark

arrestor mesh if you must have a spark

arrestor mesh in your area.

The muffler keeps the noise levels to a minimum and

points the exhaust fumes away from the operator. In

areas with a hot, dry weather there is a high risk of fire.

Obey local regulations and maintenance instructions.

Fuel safety

WARNING: Read the warning instructions

that follow before you use the product.

• Make sure there is plenty of ventilation when

refuelling or mixing fuel (petrol and two-stroke oil).

• Fuel and fuel vapour are highly flammable and can

cause serious injury when inhaled or allowed to

come in contact with the skin. For this reason

observe caution when handling fuel and make sure

there is adequate ventilation.

• Take care when handling fuel and chain oil. Be

aware of the risks of fire, explosion and those

associated with inhalation.

• Do not smoke and do not place any hot objects in

the vicinity of fuel.

• Always stop the engine and let it cool for a few

minutes before refuelling.

• When refuelling, open the fuel cap slowly so that any

excess pressure is released gently.

• Tighten the fuel cap carefully after refuelling.

• Never refuel the product while the engine is running.

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• Always move the product at least 3 m (10 ft) away

from the refuelling area and fuel source before

starting.

Min. 3m

(10 ft)

After refuelling, there are some situations where you

must never start the product:

• If you have spilled fuel or chain oil on the product.

Wipe off the spillage and allow remaining fuel to

evaporate.

• If you have spilled fuel on yourself or on your

clothes. Change your clothes and wash any part of

your body that has come in contact with fuel. Use

soap and water.

• If the product leaks fuel. Regularly do a check for

leaks from the fuel tank, fuel cap and fuel lines.

Safety instructions for maintenance

WARNING: Read the warning instructions

that follow before you do maintenance on

the product.

• Do only the maintenance and servicing given in this

operator's manual. Let professional servicing

personnel do all other servicing and repairs.

• Regularly do the safety checks, maintenance and

service instructions given in this manual. Regular

maintenance increases the life of the product and

decreases the risk of accidents. Refer to

Maintenance and checks of the safety devices on

the product on page 18

for instructions.

• If the safety checks in this operator's manual is not

approved after you do maintenance, speak to your

servicing dealer. We guarantee that there are

professional repairs and servicing available for your

product.

Safety instructions for the cutting equipment

WARNING:

Read the warning instructions

that follow before you use the product.

• Only use the guide bar/saw chain combinations and

filing equipment that we recommend. Refer to

Accessories on page 29

for instructions.

• Use protective gloves when you use or do

maintenance on the saw chain. A saw chain that

does not move can also cause injuries.

• Keep the cutting teeth correctly sharpened. Obey the

instructions and use the recommended file gauge. A

saw chain that is damaged or incorrectly sharpened

increases the risk of accidents.

• Keep the correct depth gauge setting. Obey the

instructions and use the recommended depth gauge

setting. Too large depth gauge setting increases the

risk of kickback.

• Make sure that the saw chain has the correct

tension. If the saw chain is not tight against the guide

bar, the saw chain can derail. An incorrect saw chain

tension increases wear on the guide bar, saw chain

and chain drive sprocket. Refer to

To adjust the

tension of the saw chain on page 24

.

• Do maintenance on the cutting equipment regularly

and keep it correctly lubricated. If the saw chain is

not correctly lubricated, the risk of wear on the guide

bar, saw chain and chain drive sprocket increases.

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Assembly

Introduction

WARNING: Read and understand the safety

chapter before you assemble the product.

To assemble the guide bar and saw

chain

1. Disengage the chain brake.

2. Loosen the bar nuts and remove the clutch cover.

Remove the transportation guard.

Note: If the clutch cover is not easy to remove,

tighten the bar nut, engage the chain brake and

release. A click is heard if it is released correctly.

3. Assemble the guide bar onto the bar bolt. Move the

guide bar to its most rear position.

4. Install the saw chain correctly around the drive

sprocket and put it in the groove on the guide bar.

WARNING: Always use protective

gloves when you assemble the saw

chain.

5. Make sure that the edges of the cutters point forward

on the top edge of the guide bar.

6. Align the hole in the guide bar with the chain adjuster

pin and install the clutch cover.

7. Tighten the bar nuts finger tight.

8. Tighten the saw chain. Refer to

To adjust the tension

of the saw chain on page 24

for instructions.

9. Tighten the bar nuts.

Operation

Introduction

WARNING: Read and understand the safety

chapter before you use the product.

To do a function check before you use

the product

1. Make sure that the chain brake operates correctly

and that it is not damaged.

2. Make sure that the throttle trigger lockout operates

correctly and that it is not damaged.

3. Make sure that the start/stop switch operates

correctly and that it is not damaged.

4. Make sure that there is no oil on the handles.

5. Make sure that the vibration damping system

operates correctly and that it is not damaged.

6. Make sure that the muffler is correctly attached and

that it is not damaged.

7. Make sure that all parts are correctly attached and

not damaged or missing.

8. Make sure that the chain catcher is correctly

attached.

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9. Make sure that the saw chain tension is correct.

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4

6

Fuel

This product has a two-stroke engine.

CAUTION: Incorrect type of fuel can result in

engine damage. Use a mixture of gasoline

and two-stroke oil.

Premixed fuel

• Use Zenoah premixed alkylate fuel of a good quality,

for best performance and extension of the engine

life. This fuel contains less harmful chemicals

compared to regular fuel, which decreases harmful

exhaust fumes. The quantity of remains after

combustion is lower with this fuel, which keeps the

components of the engine more clean.

To mix fuel

Gasoline

• Use good quality unleaded gasoline with a maximum

of 10% ethanol contents.

CAUTION:

Do not use gasoline with an

octane grade less than 90 RON/87 AKI.

Use of a lower octane grade can cause

engine knocking, which causes engine

damages.

• We recommend that you use gasoline of a higher

octane grade for work with continuously high rpm.

Two-stroke oil

• For best results and performance use Zenoah two-

stroke oil.

• If Zenoah two-stroke oil is not available, use a two-

stroke oil of good quality for air-cooled engines.

Speak to your servicing dealer to select the correct

oil.

CAUTION:

Do not use two-stroke oil for

water-cooled outboard engines, also

referred to as outboard oil. Do not use oil

for four-stroke engines.

To mix gasoline and two-stroke oil

Gasoline, liter Two-stroke oil,

liter

2% (50:1)

5 0.10

10 0.20

15 0.30

20 0.40

CAUTION: Small errors can influence the

ratio of the mixture drastically when you mix

small quantities of fuel. Measure the quantity

of oil carefully and make sure that you get

the correct mixture.

1. Fill half the quantity of gasoline in a clean container

for fuel.

2. Add the full quantity of oil.

3. Shake the fuel mixture.

4. Add the remaining quantity of gasoline to the

container.

5. Carefully shake the fuel mixture.

CAUTION: Do not mix fuel for more than 1

month at a time.

To fill the fuel tank

1. Clean the area around the fuel tank cap.

2. Shake the container and make sure that the fuel is

fully mixed.

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3. Tighten the fuel tank cap carefully.

4. Move the product 3 m/10 ft or more away from the

refueling area and fuel source before starting.

Note: To see where the fuel tank is on you product, refer

to

Product overview on page 2

.

To do a run-in

• During the first 10 hours of operation, do not apply

full throttle without load for extended periods.

To use the correct chain oil

WARNING: Do not use waste oil, which can

cause injury to you and the environment.

Waste oil also causes damage to the oil

pump, the guide bar and the saw chain.

WARNING: The saw chain can break if the

lubrication of the cutting equipment is not

sufficient. Risk of serious injury or death to

the operator.

WARNING: This product has a function that

lets the fuel run out before the chain oil. Use

the correct chain oil for this function to

operate correctly. Speak to your servicing

dealer when you select your chain oil.

• Use Zenoah chain oil for maximum saw chain life

and to prevent negative effects on the environment.

If Zenoah chain oil is not available, we recommend

you to use a standard chain oil.

• Use a chain oil with good adherence to the saw

chain.

• Use a chain oil with correct viscosity range that

agrees with the air temperature.

CAUTION:

If the oil is too thin, it runs out

before the fuel. In temperatures below

0°C/32°F some chain oils become too

thick, which can cause damage to the oil

pump components.

• Use the recommended cutting equipment. Refer to

Accessories on page 29

.

• Remove the cap to the chain oil tank.

• Fill the chain oil tank with chain oil.

• Attach the cap carefully.

Note:

To see where the chain oil tank is on you product,

refer to

Product overview on page 2

.

Kickback information

WARNING: A kickback can cause serious

injury or death to the operator or others. To

decrease the risk you must know the causes

of kickback and how to prevent them.

A kickback occurs when the kickback zone of the guide

bar touches an object. A kickback can occur suddenly

and with large force, which throws the product in the

direction of the operator.

Kickback always occurs in the cutting plane of the guide

bar. Usually, the product is thrown against the operator

but can also move in a different direction. It is how you

use the product when the kickback occurs that causes

the direction of the movement.

A smaller bar tip radius decreases the force of the

kickback.

Use a low kickback saw chain to decrease the effects of

kickback. Do not let the kickback zone touch an object.

WARNING:

No saw chain fully prevents

kickback. Always obey the instructions.

Common questions about kickback

• Will the hand always engage the chain brake during

a kickback?

No. It is necessary to use some force to push the

front hand guard forward. If you do not use the force

necessary, the chain brake will not be engaged. You

must also hold the handles of the product stable with

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two hands during work. If a kickback occurs, it is

possible that the chain brake does not stop the saw

chain before it touches you. There are also some

positions in which your hand can not touch the front

hand guard to engage the chain brake. An example

of this is in the felling position.

• Will the inertia release mechanism always engage

the chain brake during kickback?

No. First, the chain brake must operate correctly.

Refer to

To do a check of the chain brake on page

18

for instructions about how to do a check of the

chain brake. We recommend you to do this each

time before you use the product. Second, the force

of the kickback must be large to engage the chain

brake. If the chain brake is too sensitive, it can

engage during rough operation.

• Will the chain brake always protect me from injury

during a kickback?

No. The chain brake must operate correctly to give

protection. The chain brake must also be engaged

during a kickback to stop the saw chain. If you are

near the guide bar, it is possible that the chain brake

does not have time to stop the saw chain before it

hits you.

WARNING: Only you and the correct

working technique can prevent kickbacks.

To start the product

To prepare to start with a cold engine

WARNING:

The chain brake must be

engaged when the product is started to

decrease the risk of injury.

1. Move the front hand guard forward to engage the

chain brake.

2. Push the air purge bulb approximately 6 times or

until fuel starts to fill the bulb. It is not necessary to

fill the air purge bulb fully.

3. Set the start/stop switch to start position.

4. Set the choke to choke position.

5. Continue to

To start the product on page 13

for

more instructions.

To prepare to start with a warm engine

WARNING: The chain brake must be

engaged when the product is started to

decrease the risk of injury.

1. Move the front hand guard forward to engage the

chain brake.

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2. Push the air purge bulb about 6 times or until fuel

starts to fill the bulb. It is not necessary to fill the air

purge bulb fully.

3. Continue to

To start the product on page 13

for

more instructions.

To start the product

WARNING: You must keep your feet in a

stable position when you start the product.

WARNING: If the saw chain rotates at idle

speed, speak to your servicing dealer and

do not use the product.

1. Put the product on the ground.

2. Put your left hand on the front handle.

3. Put your knee on the rear part of the top handle.

4. Pull the starter rope handle slowly with your right

hand until you feel resistance.

WARNING:

Do not twist the starter cord

around your hand.

CAUTION: Do not pull the starter rope to

full extension and do not let go of the

starter rope handle.

a) If you start your product with a cold engine, pull

the starter rope handle until the engine fires.

Note:

You can identify when the engine fires

through a "puff" sound.

b) Put the choke control in choke position.

5. Pull the starter rope handle until the engine starts.

6. Quickly disengage the throttle trigger lockout to set

the product to idle speed.

7. Move the front hand guard rearward to disengage

the chain brake.

8. Use the product.

To start the product in the tree

Note:

Make sure that you have sufficient fuel before you

start the product.

1. Engage the chain brake.

2. Hold the product on the left or right side of your body

when you start the product.

a) If you hold the product on your left side, put your

left hand on the front handle. Hold the starter

rope handle with your right hand and thrust the

product away from your body when you start the

product.

b) If you hold the product on your right side, put

your right hand on one of the two handles. Hold

the starter rope handle with your left hand and

thrust the product away from your body when

you start the product.

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To stop the product

1. Push the start/stop switch to the STOP position.

Information about working technique

WARNING: The information related to

working technique in this operator's manual

is not sufficient training to operate this

product. Only use this product if you have

correct training in tree maintenance.

Operation without correct training can result

in serious injury or death to the operator or

others.

• Use full throttle when you cut and decrease to idle

speed after each cut.

CAUTION: Engine damage can occur if

the engine runs for too long at full throttle

without load.

• When you cut, put the spiked bumper into the trunk

and use it as a lever.

Note:

Not all models have a spiked bumper. Speak

to your servicing dealer for more information.

Pull stroke and push stroke

You can cut through wood with the product in 2 different

positions.

• To cut on the pull stroke is when you cut with the

bottom of the guide bar. The saw chain pulls through

the tree when you cut. In this position you have

better control of the product and the position of the

kickback zone.

• To cut on the push stroke is when you cut with the

top of the guide bar. The saw chain pushes the

product in the direction of the operator.

WARNING: If the saw chain is caught in

the trunk, the product can be pushed at

you. Hold the product tightly and make

sure that the kickback zone of the guide

bar does not touch the tree and causes a

kickback.

To prepare the product for operation in

the tree

Ground operator

As a ground operator, do the following steps.

1. Examine the product.

2. Fill the fuel and chain oil tanks.

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3. Attach the end of an approved safety strop to the

rope eyelet.

Note: A safety strop makes sure that the product

does not hit the ground if it falls.

4. Make sure that there is a carabiner on the other end

of the safety strop.

5. Start and warm up the product.

6. Stop the product.

7. Engage the chain brake.

8. Lift the product to the operator in the tree using

ascent tools.

WARNING: Make sure that the product

is safely attached when you lift it to the

operator in the tree.

Tree operator

As a tree operator, follow the instructions below.

1. Before you disconnect the safety strop from the

ascent tools, you must attach the product to the

harness. Attach the product to the harness through

the belt eyelet or a steel ring on the safety strop.

WARNING: Attach the safety strop to 1

of the recommended connection points

on the harness.

WARNING: If you use only the safety

strop to attach the product to the

harness, lower the product fully down

with the safety strop. Do not let go of the

product from a height.

2. Use approved carabiners to attach the free end of

the safety strop to one of the connection points on

the harness. This is your primary connection point.

CAUTION: The safety strop must only be

attached to the rope eyelet.

3. Make sure that you are in a stable and safe position

to make the cut.

4. Release the product from the secondary connection

point, start the product and make the cut.

5. Engage the chain brake directly after the cut is

completed.

6. Stop the product and put it in its secondary

connection point.

To operate the product in a tree

WARNING: Most accidents occur when the

operator does not have full control of the

product or the work position.

• Keep a safe work position.

• Cut horizontal sections at hip level and vertical

sections at solar plexus level.

• Hold the product with 2 hands.

• Make sure that you are stable on your feet and keep

a low lateral force when you cut vertical branches.

Steer the safety line through a different connection

point to remove or prevent increasing lateral forces.

You can also use an adjustable strop directly from

the harness to a different connection point.

308 - 007 - 05.11.2019

15

• Use a foot loop to keep a safe work position.

• Do a check of the harness, belt and ropes at a

regular interval.

• If you must climb with the product, attach the product

to the rear connection point on the harness. The rear

connection point keeps the product clear from

climbing lines and makes sure that the weight has

central support down your spine.

WARNING: You must engage the chain

brake when you lower the product onto

its strop.

To remove a trapped product

1. Stop the product.

2. Attach the product safely to the tree inboard, against

the trunk side, of the cut or a different tool line.

3. Carefully pull the saw away from the kerf while you

lift the branch as necessary.

WARNING: Do not try to pull the product

free. Risk of serious injury.

4. If it is necessary, use a hand saw or a second

chainsaw to release the product. Cut the branch at a

minimum of 30 cm/12 in from the caught product.

Make the cut on the outer end from where the

product is caught.

Maintenance

Introduction

WARNING: Read and understand the safety

chapter before you do maintenance on the

product.

Maintenance schedule

Daily maintenance Weekly maintenance Monthly maintenance

Clean the external parts of the prod-

uct and make sure that there is no oil

on the handles.

Clean the cooling system. Refer to

To clean the cooling system on page

27

.

Do a check of the brake band. Refer

to

To do a check of the brake band

on page 18

.

Do a check of the throttle trigger and

throttle trigger lockout. Refer to

To do

a check of the throttle trigger and the

throttle trigger lockout on page 18

.

Do a check of the starter, starter rope

and return spring.

Do a check of the clutch centre,

clutch drum and clutch spring.

16 308 - 007 - 05.11.2019

Daily maintenance Weekly maintenance Monthly maintenance

Make sure that there is no damage

on the vibration damping units.

Lubricate the needle bearing. Refer

to

To lubricate the needle bearing on

page 25

.

Clean the spark plug. Refer to

To do

a check of the spark plug on page

22

.

Clean and do a check of the chain

brake. Refer to

To do a check of the

chain brake on page 18

.

Remove burrs from the edges of the

guide bar. Refer to

To do a check of

the guide bar on page 26

.

Clean the external parts of the carbu-

rettor.

Do a check of the chain catcher. Re-

fer to

To do a check of the chain

catcher on page 19

.

Clean or replace the spark arrestor

mesh on the muffler.

Do a check of the fuel filter and the

fuel hose. Replace if necessary.

Turn the guide bar, do a check of the

lubrication hole and clean the groove

in the guide bar. Refer to

To do a

check of the guide bar on page 26

.

Clean the carburetor area. Do a check of all cables and connec-

tions.

Make sure that the guide bar and

saw chain are getting sufficient oil.

Clean or replace the air filter. Refer

to

To clean the air filter on page 21

.

Empty the fuel tank.

Do a check of the saw chain. Refer to

To examine the cutting equipment on

page 25

.

Clean between the cylinder fins. Empty the oil tank.

Sharpen the saw chain and do a

check of its tension. Refer to

To

sharpen the saw chain on page 22

.

Do a check of the chain drive sprock-

et. Refer to

To do a check of the spur

sprocket on page 25

.

Clean the air intake on the starter.

Make sure that nuts and screws are

tightened.

Do a check of the stop switch. Refer

to

To do a check of the start/stop

switch on page 19

.

Make sure that these are no fuel

leaks from the engine, tank or fuel

lines.

Make sure that the saw chain does

not rotate when the engine is at idle

speed.

Make sure that the muffler is correct-

ly attached, has no damages and

that no parts of the muffler are miss-

ing.

308 - 007 - 05.11.2019 17

Maintenance and checks of the safety

devices on the product

To do a check of the brake band

1. Use a brush to remove wood dust, resin and dirt

from the chain brake and clutch drum. Dirt and wear

can decrease the function of the brake.

2. Do a check of the brake band. The brake band must

be at a minimum of 0.6 mm/0.024 in thick at its

thinnest point.

To do a check of the front hand guard

1. Make sure that the front hand guard is not damaged

and that there are no defects, such as cracks.

2. Make sure that the front hand guard moves freely

and that it is attached safely to the clutch cover.

To do a check of the chain brake

1. Start the product. Refer to

To start the product on

page 12

for instructions.

WARNING: Make sure that the saw

chain does not touch the ground or other

objects.

2. Hold the product tightly.

WARNING: Make sure that the saw

chain does not touch the ground or other

objects.

3. Apply full throttle and tilt your left wrist against the

front hand guard to engage the chain brake. The

saw chain must stop immediately.

WARNING: Do not let go of the front handle

when you engage the chain brake.

To do a check of the throttle trigger and the

throttle trigger lockout

1. Make sure that the throttle trigger and throttle trigger

lockout move freely and that the return spring works

correctly.

2. Push down the throttle trigger lockout and make sure

that it goes back to its initial position when you

release it.

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308 - 007 - 05.11.2019

3. Make sure that the throttle trigger is locked at the

idle position when the throttle trigger lockout is

released.

4. Start the chainsaw and apply full throttle.

5. Release the throttle trigger and make sure that the

saw chain stops and stays stationary.

WARNING: If the saw chain rotates

when the throttle trigger is in the idle

position, speak to your servicing dealer.

To do a check of the chain catcher

1. Make sure that there is no damage on the chain

catcher.

2. Make sure that the chain catcher is stable and

attached to the body of the product.

To do a check of the vibration damping

system

1. Make sure that there are no cracks or deformation

on the vibration damping units.

2. Make sure that the vibration damping units are

correctly attached to the engine unit and handle unit.

Refer to

Product overview on page 2

for information

about where the vibration damping system is on your

product.

To do a check of the start/stop switch

1. Start the engine.

2. Push the start/stop switch to the STOP position. The

engine must stop.

To do a check of the muffler

1. Loosen the screws (A and B).

A

B

2. Remove the muffler cover.

3. Loosen the screws and nuts.

4. Remove the muffler and make sure that it is not

defective.

308 - 007 - 05.11.2019

19

5. Assemble the muffler and make sure that it is

correctly attached to the product.

6. Some mufflers have a special spark arrestor mesh.

Clean the spark arrestor mesh one time each week if

your product has this type of muffler.

Carburetor adjustment

Because of environmental and emissions laws, your

product has adjustment limitations on the carburetor

adjuster screws. This decreases the harmful exhaust

fumes from your product. You can only turn the

adjustment screws maximum ½ turn.

1/2

H

L

Basic adjustments and run-in

The basic carburetor adjustments are done at the

factory. For the recommended idle speed, refer to

Technical data on page 28

.

CAUTION: Do not operate the product at too

high speed during the first 10 hours of

operation.

CAUTION: If the saw chain rotates at idle

speed, turn the idle speed screw

counterclockwise until the saw chain stops.

To adjust the low speed needle (L)

• Turn the low speed needle clockwise until stop.

Note: If the product has a bad acceleration capacity

or if the idle speed is not correct, turn the low speed

needle counterclockwise. Turn the low speed needle

until the acceleration capacity and idle speed is

correct.

To adjust the idle speed screw (T)

1. Start the product.

2. Turn the idle speed screw clockwise until the saw

chain starts to rotate.

3. Turn the idle speed screw counterclockwise until the

saw chain stops.

Note: The idle speed is correctly adjusted when the

engine runs correctly in all positions. The idle speed

must also be safely below the speed at which the saw

chain starts to rotate.

WARNING: If the saw chain does not stop

when you turn the idle speed screw, speak

to your servicing dealer. Do not use the

product until it is correctly adjusted.

To adjust the high speed needle (H)

The engine is adjusted at the factory to operate at sea

level. At higher altitudes, in different weather or different

temperatures it can be necessary to adjust the high

speed needle.

• Turn the high speed needle to make adjustments.

CAUTION:

Do not turn the high speed

needle screw across the adjustment

limitation stop. This can cause damage

to the piston and the cylinder.

To examine if the carburetor is correctly

adjusted

• Make sure that the product has the correct

acceleration capacity.

• Make sure that the product 4-cycles a little at full

throttle.

• Make sure that the saw chain does not rotate at idle

speed.

• If the product is not easy to start or has less

acceleration capacity, adjust the low and high speed

needles.

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Zenoah GZ3500T Istruzioni per l'uso

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