Zenoah G3000 Bedienungsanleitung

GB-1

G3000

CHAIN SAWS

OWNER’S MANUAL

115 39 96-38 (010)

GB-2

G3000

Contents

1. For Safe Operation.....................................................................3

2. Explanation of Symbols on the Machine....................................7

3. Installing Guide Bar and Saw Chain ..........................................8

4. Fuel and Chain Oil .....................................................................9

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

6. Sawing .....................................................................................12

7. Maintenance ............................................................................14

8. Maintenance of Saw Chain and Guide Bar..............................15

9. Troubleshooting Guide.............................................................16

10. Disposal ....................................................................................16

11. Speciﬁcations...........................................................................17

Read operator's instruction

book before operating this

machine.

Wear head, eye and ear

protection.

Use the chain saw

with two hands.

Warning! Danger of

kickback.

Read, understand and

follow all warnings.

This saw is for trained tree

service operators only.

Use appropriate protections

for foot-leg and hand-arm.

Never touch hot surface.

EXPLANATION OF SYMBOLS AND SAFETY WARNINGS

GB-3

G3000

1. For safe operation

WARNING

This chainsaw has been especially designed for tree

maintenance and should therefore only be used by trained

operators when working on trees.

1. Never operate a chain saw when you

are fatigued, ill, or upset, or under the

influence of medication that may

make you drowsy, or if you are under

the inﬂuence of alcohol or drugs.

2. Use safety footwear, snug fitting

clothing and eye, hearing and head

protection devices.

Use the vibration-proof glove.

3. Keep the saw chain sharp and the

saw, including the AV system, well

maintained. A dull chain will increase

cutting time, and pressing a dull

chain through wood will increase the

vibrations transmitted to your hands.

A saw with loose components or with

damaged or worn AV buffers will also

tend to have higher vibration levels.

4. Always use caution when handling

fuel. Wipe up all spills and then move

the chain saw at least 3 m from the

fueling point before starting the en-

gine.

5. Eliminate all sources of sparks or

ﬂame (i.e. smoking, open ﬂames, or

work that can cause sparks) in the

areas where fuel is mixed, poured, or

stored.

6. Do not smoke while handling fuel or

while operating the chain saw.

7. Do not allow other persons to be near

the chain saw when starting or cut-

ting. 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 oper-

ate the chain saw.

8. Never start cutting until you have a

clear work area, secure footing, and

a planned retreat path from the falling

tree.

9. Always hold the chain saw ﬁrmly with

both hands when the engine is run-

ning. Use a ﬁrm grip with thumb and

fingers encircling the chain saw

handles.

10. Keep all parts of your body away from

the saw chain when the engine is

running.

11. Before you start the engine, make

sure the saw chain is not contacting

anything.

12. Always carry the chain saw with the

engine stopped, the guide bar and

saw chain to the rear, and the mufﬂer

away from your body.

13. Always inspect the chain saw before

each use for worn, Ioose, or dam-

aged parts. Never operate a chain

saw that is damaged, improperly

adjusted, or is not completely and

securely assembled. Be sure that the

saw chain stops moving when the

throttle control trigger is released.

14. All chain saw service, other than the

items listed in the Owner’s Manual,

should be performed by competent

chain saw service personnel. (E.g., if

improper tools are used to remove

the ﬂywheel, or if an improper tool is

used to hold the ﬂywheel in order to

remove the clutch, structural damage

to the ﬂywheel could occur which

could subsequently cause the ﬂy-

wheel to disintegrate.)

15. Always shut off the engine before

setting it down.

16. Use extreme caution when cutting

small size brush and saplings be-

cause slender material may catch the

saw chain and be whipped toward

you or pull you off balance.

17. When cutting a limb that is under

tension, be alert for spring- back so

that you will not be struck when the

tension in the wood fibers is re-

leased.

18. Never cut in high wind, bad weather,

when visibility is poor or in very high

or low temperatures. Always check

the tree for dead branches which

could fall during the felling opera-

tion.

19. Keep the handles dry, clean and free

of oil or fuel mixture.

GB-4

G3000

(1)

(2)

(3)

(1) mufﬂer guard

(2) guide bar

(3) saw chain

20. Operate the chain saw only in well

ventilated areas. Never start or run

the engine inside a closed room or

building. Exhaust fumes contain

dangerous carbon monoxide.

21. Do not operate the chain saw in a tree

unless specially trained to do so.

22. Guard against kickback. Kickback is

the upward motion of the guide bar

which occurs when the saw chain at

the nose of the guide bar contacts an

object. Kickback can lead to danger-

ous loss of control of the chain saw.

23. When transporting your chain saw,

make sure the appropriate guide bar

scabbard is in place.

24. Never touch the muffer guard, guide

bar, saw chain or nut with bare hands

while the engine is in operation or

immediately after shutting down the

engine. Doing so could result in seri-

ous burns because of high tempera-

ture.

front handle, when the engine is run-

ning. Use a ﬁrm grip with thumbs

and ﬁngers encircling the chain saw

handles. A ﬁrm grip will help you

reduce kickback and maintain con-

trol of the saw.

(3) Make certain that the area in which

you are cutting is free from obstruc-

tions. Do not let the nose of the guide

bar contact a log, branch, or any

other obstruction which could be hit

while you are operating the saw.

(4) Cut at high engine speeds.

(5) Do not overreach or cut above shoul-

der height.

(6) Follow the manufacturer’s sharpen-

ing and maintenance instructions for

the saw chain.

(7) Only use replacement bars and

chains speciﬁed by the manufac-

turer or the equivalent.

KICKBACK SAFETY PRECAUTIONS

FOR CHAIN SAW USERS

WARNING

• Kickbackmayoccurwhenthenose

or tip of the guide bar touches an

object, or when the wood closes in

and pinches the saw chain in the cut.

Tip contact in some cases may cause

alightning fast reverse reaction,kicking

the guide bar up and back towards

the operator. Pinching the saw chain

along the top of the guide bar may

push the guide bar rapidly back to-

wards the operator. Either of these

reactions may cause you to Iose

control of the saw, which could result

in serious personal injury.

• Donotrelyexclusivelyonthesafety

devices built into your saw. As a

chain saw user you should take sev-

eral steps to keep cutting jobs free

from accident or injury.

(1) With a basic understanding of kick-

back you can reduce or eliminate

the element of surprise. Sudden

surprise contributes to accidents.

(2) Keep a good grip on the saw with

both hands, the right hand on the

rear handle, and the left hand on the

WORSE EFFECTS OF VIBRATION

If you continue to use high-vibration tools these

symptoms will probably get worse, for example:

• thenumbnessinyourhandscouldbecomeperma-

nent and you won’t be able to feel things at all;

• youwillhavedifcultypickingupsmallobjectssuch

as screws or nails;

• the vibration white nger could happen more fre-

quently and affect more of your ﬁngers.

FOR PROTECTING YOUR BODY FROM VIBRATION

Please observe the following matter, in order to

protect the health of your body.

1. Always use the right tool for each job (to do the job

more quickly and expose you to less hand-arm vibra-

tion).

2. Check tools before using them to make sure they

have been properly maintained and repaired to avoid

increased vibration caused by faults or general

wear.

3. Make sure cutting tools are kept sharp so that they

remain efﬁcient.

4. Reduce the amount of time you use a tool in one go,

by doing other jobs in between.

5. Avoid gripping or forcing a tool or workpiece more

than you have to.

6. Store tools so that they do not have very cold handles

when next used.

7. Encourage good blood circulation by:

• keeping warm and dry (when necessary, wear

gloves, a hat, waterproofs and use heating pads if

available);

• giving up or cutting down on smoking because

smoking reduces blood ﬂow; and massaging and

exercising your ﬁngers

DISPOSAL

• When you dispose of the machine, do not disas-

semble the machine.

• Whenyoudisposeofthemachine,fuel,chainoil,be

sure to follow your local regulations.

GB-5

G3000

WORKING WITH TREE SERVICE CHAIN-SAWS

FROM A ROPE AND HARNESS

This chapter sets out working practices to reduce the

risk of injury from tree service chainsaws when working

at height from a rope and harness. While it may form

the basis of guidance and training literature, it should

not be regarded as a substitute for formal training.

General requirements working at height

Operators of tree service chainsaws working at height

from a rope and harness should never work alone. A

competent ground worker trained in appropriate emer-

gency procedures should assist them.

Operators of tree service chainsaws for this work should

be trained in general safe climbing and work position-

ing techniques and shall properly equipped with har-

nesses, ropes, strops, karabiners and other equipment

for maintaining secure and safe working positions for

both themselves and the saw.

Preparing to use the saw in the tree

The chainsaw should checked, fuelled, started and

warmed up by the ground worker before it is sent up to

the operator in the tree. The chainsaw should be ﬁtted

with a suitable strop for attaching to the operator’s har-

ness:

a) choke the strop around the attachment point on the

rear of the saw (A);

b) provide suitable karabiners to allow indirect (i.e. via

the strop) and direct attachment (i.e. at the attach-

ment point on the saw) of saw to the operators har-

ness;

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 recommended

attachment points on the harness. These may be at

mid-point (front or rear) or at the sides. Where possible

attaching the saw to centre rear mid-point will keep it

clear of climbing lines and support its weight centrally

down the operator’s spine.

When moving the saw from any attachment point to

another, operators should ensure it is secured in the

new position before releasing it from the previous at-

tachment point.

Using the chainsaw in the tree

An analysis of accidents with these saws during tree

service operations shows the primary cause as being

inappropriate one-handed use of the saw. In the vast

majority of accidents, operators fail to adopt a secure

work position witch allows them to hold both handles

of the saw. This results in an increased risk of injury due

to:

• nothavingarmgriponthesawifitkicksback;

• alackofcontrolofthesawsuchthatitismoreliable

to contact climbing lines and operators body (par-

ticularly the left hand and arm)

• losingcontrolfrominsecureworkpositionresulting

in contact with the saw (unexpected movement dur-

ing operation of the saw)

Securing the work position for two-handed use

To allow the operator to hold the saw with both hands,

they should as general rule, aim for secure work position

where they are operating the saw at:

• hiplevelwhencuttinghorizontalsections;

• solarplexuslevelwhencuttingverticalsections.

Where the operator is working close into vertical stems

with a low lateral forces on their work position, then a

good footing may be all that is needed to maintain a

secure work position. However as operators move away

from the stem, they will need to take steps to remove

or counteract the increasing lateral forces by, for ex-

ample, a re-direct of the main line via a supplementary

anchor point or using an adjustable strop direct from

the harness to a supplementary anchor point.

GB-6

G3000

Gaining a good footing at the working position can be

assisted by use of a temporary foot stirrup created from

an endless sling.

Starting the saw in the tree

When starting the saw in the tree, the operator

should:

a) apply the chain brake before starting;

b) hold saw on either the left or right of the body when

starting:

1) on the left side hold the saw with either the left hand

on the front handle or the right hand on the rear

handle and thrust the saw away from the body while

holding the pull starter cord in the other hand;

2) on the right side, hold the saw with the right hand

on either handle and thrust the saw away from the

body while holding the pull starter cord in the left

hand.

The chain brake should always be engaged before

lowering a running saw onto its strop.

Operators should always check the saw has sufﬁcient

fuel before undertaking critical cuts.

One-hand use of the chainsaw

Operators should not use tree service chainsaws one-

handed in place of unstable work positioning or in

preference to a handsaw when cutting small diameter

wood at the branch tips.

Tree service chainsaws should only be used one-

handed where:

• theoperatorcannotgainaworkpositionenabling

two-handed use; and

• theyneedtosupporttheirworkingpositionwithone

hand; and

• thesawisbeingusedatfullstretch,atrightangles

to and out of line with the operator’s body.

Operators should never:

• cutwiththekickbackzoneatthetipofthechainsaw

guide bar

• ‘holdandcut’sections

• attempttocatchfallingsections.

Freeing a trapped saw

If the saw should become trapped during cutting, op-

erators should:

• switchoffthesawandattachitsecurelytothetree

inboard (i.e. towards the truck side) of the cut or to

a separate tool line;

• pullthesawfromthekerfwhilstliftingthebranchas

necessary;

• ifnecessary,useahandsaworsecondchainsawto

release the trapped saw by cutting a minimum of 30

cm away from the trapped saw.

Whether a handsaw or a chainsaw is used to free a

stuck saw, the release cuts should always be outboard

(toward the tips of the branch), in order to prevent the

saw being taken with the section and further complicat-

ing the situation.

GB-7

G3000

2. Explanation of Symbols on the Machine

The port to refuel “MIX GASOLINE”

Position: Fuel cap

The port to top up chain oil

Position: Oil cap

The indication regarding the switch.

Flipping the engine switch to the “O” (STOP) direction, the engine stops.

Position: upper part of the unit

The indication regarding the choke.

Pulling out the choke knob, the choke closes.

Position: front of the chain cover

The screw under the “H” stamp is The High-speed adjustment screw.

The screw under the “L” stamp is The Slow-speed adjustment screw.

The screw at the left of the “T” stamp is the Idle adjustment screw.

Position: Left side of the rear handle

For safe operation and maintenance, symbols are carved in relief on the machine.

According to these indications, please be careful not to make any mistake.

WARNING

GB-8

G3000

3. Installing Guide Bar and Saw Chain

A standard saw unit package contains the items as illustrated.

Open the box and install the guide bar and the saw

chain to the power unit as follows.

WARNING

The saw chain has very sharp edges. Use thick,

protective gloves to avoid injury.

1. Loosen a nut and remove the chain cover.

2. Mount the guide bar and ﬁt the saw chain around

the bar and the drive sprocket. Pay attention to the

correct direction of the saw chain.

Rotating direction

3. 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 tightness.

Hook

WARNING

When installing the chain cover, be sure to ﬁt the hook

completely at the rear end of the cover.

4. While holding up the tip of the bar, adjust the chain

tension by turning the tensioner screw until the tie

straps just touch the bottom side of the bar rail.

Loosen

Chain

tensioner

screw

Tighten

Tie straps

5. Keep holding the guide bar up, tighten the mounting

nut ﬁrmly with the attached socket wrench.

Tighten

Lift up

6. Rotate the saw chain by hand, wearing a protective

glove, to see if it turns smoothly without noticeable

gap between the tie straps and the guide bar.

WARNING

A new chain will expand its length in the beginning of

use. Check and readjust the tension frequently as a

loose chain can easily derail or cause rapid wear of

itself and the guide bar.

Bar protector

Guide bar

Saw chain

Plug wrench

(Hexagon socket (S13/S19) +

Slotted driver)

Power unit

GB-9

G3000

ful that, if the agitation is insufﬁcient, there is an in-

creased danger of early piston seizing due to abnor-

mally lean mixture.

5. Put a clear indication on the outside of the container

to avoid mixing up with gasoline or other contain-

ers.

6. Indicate the contents on outside of container for easy

identiﬁcation.

■FUELING THE UNIT

1. Untwist and remove the fuel cap. Rest the cap on a

dustless place.

2. Put fuel into the fuel tank to 80% of the full capacity.

3. Fasten the fuel cap securely and wipe up any fuel

spillage around the unit.

WARNING

1. Select bare ground for fueling.

2. Move at least 10 feet (3 meters) away from the fueling

point before starting the engine.

3. Stop the engine before refueling the unit. At that time,

be sure to sufﬁciently agitate the mixed gasoline in

the container.

■FOR YOUR ENGINE LIFE, AVOID:

1. FUEL WITH NO OIL (RAW GASOLINE) – It will cause

severe damage to the internal engine parts very

quickly.

2. GASOHOL – It can cause deterioration of rubber and/

or plastic parts and disruption of engine lubrica-

tion.

3. OIL FOR 4-CYCLE ENGINE USE – It can cause spark

plug fouling, exhaust port blocking, or piston ring

sticking.

4. Mixed fuels which have been left unused for a

period of one month or more may clog the carbu-

retor and result in the engine failing to operate prop-

erly.

5. In the case of storing the product for a long period

of time, clean the fuel tank after rendering it empty.

Next, activate the engine and empty the carburetor

of the composite fuel.

6. In the case of scrapping the used mixed oil con-

tainer, scrap it only at an authorized repository site.

NOTE

As for details of quality assurance, read the description

in the section Limited Warranty carefully. Moreover, nor-

mal wear and change in product with no functional inﬂu-

ence are not covered by the warranty. Also, be careful

that, if the usage in the instruction manual is not observed

as to the mixed gasoline, etc. described therein, it may

not be covered by the warranty.

■CHAIN OIL

Use motor oil SAE #10W-30 all year round or SAE

#30 ~ #40 in summer and SAE #20 in winter.

NOTE

Do not use wasted or regenerated oil that can cause

damage to the oil pump.

4. Fuel and Chain Oil

■FUEL

WARNING

• Gasoline is very flammable.Avoid smoking or

bringing any ﬂame or sparks near fuel. Make sure

to stop the engine and allow it cool before refueling

the unit. Select outdoor bare ground for fueling and

move at least 3 m (10 ft) away from the fueling point

before starting the engine.

• The Zenoah engines are lubricated by oil specially

formulated for air-cooled 2-cycle gasoline engine use.

If Zenoah oil is not available, use an anti-oxidant

added quality oil expressly labeled for air-cooled

2-cycle engine use (JASO FC GRADE OIL or ISO EGC

GRADE).

• DonotuseBIAorTCW(2-strokewater-coolingtype)

mixed oil.

■RECOMMENDED MIXING RATIO

GASOLINE 50 : OIL 1

• Exhaust emission are controlled by the funda

mental engine parameters and components (eq.,

carburation, ignition timing and port timing) without

addition of any major hardware or the introduction

of an inert material during combustion.

• Theseengines arecertied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 tem-

perature may rise and an engine problem such as

piston seizing may consequently occur.

• Unleaded gasoline is recommended to reduce the

contamination of the air for the sake of your health and

the environment.

• Poor quality gasolines or oils may damage sealing

rings, fuel lines or fuel tank of the engine.

■HOW TO MIX FUEL

WARNING

•Payattentiontoagitation.

1. Measure out the quantities of gasoline and oil to be

mixed.

2. Put some of the gasoline into a clean, approved fuel

container.

3. Pour in all of the oil and agitate well.

4. Pour in the rest of gasoline and agitate again for at

least one minute. As some oils may be difﬁcult to

agitate depending on oil ingredients, sufﬁcient agita-

tion is necessary for the engine to last long. Be care-

GB-10

G3000

WARNING

It is very dangerous to run a chainsaw that mounts

broken parts or lacks any parts.

Before starting engine, make sure that all the parts in-

cluding bar and chain are installed properly.

■STARTING THE ENGINE

WARNING

Keep clear of the saw chain as it will start rotating

upon starting of the engine.

1. Fill fuel and chain oil tanks respectively, and tighten

the caps securely.

Fuel Chain oil

2. Push the primer pump until fuel ﬂows out in the clear

tube.

Primer pump

3. Put the ignition switch to “ I ” position.

Ignition switch

4. While holding the throttle lever together with the

throttle interlock, push in the side button and release

the throttle lever to hold it at the start position.

Throttle interlock

Side

button

Throttle lever

5. Operating the Engine

5. Pull out the choke knob to the closed position.

Choke

knob

NOTE

When restarting immediately after stopping the engine,

Ieave the choke knob at the open position.

6. While holding the saw unit securely on the ground,

pull the starter rope vigorously.

WARNING

Do not start the engine while hanging the chain saw

with a hand. The saw chain may touch your body.

It’s very dangerous.

7. When ﬁring occurs, push in the choke knob and pull

the starter again to start the engine.

8. Allow the engine to warm up with the throttle lever

pulled slightly.

■CHECKING OIL SUPPLY

WARNING

Make sure to set up the bar and the chain when

checking the oil supply.

If not, the rotating parts may be exposed. It is very

dangerous.

After starting the engine, run the chain at medium speed

and see if chain oil is scattered off as shown in the

ﬁgure.

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