Zenoah G2000T User Manual
848C0593A0 (704)
OWNER’S MANUAL
G2000T
G
G
B
B
CHAIN SAW
G2000T
GB-1
G2000T
EXPLANATION OF SYMBOLS AND SAFETY WARNINGS
Read operator's instruction
book before operating this
machine.
Use the chain saw
with two hands.
Read, understand and
follow all warnings.
Wear head, eye and ear
protection.
Warning! Danger of
kickback.
Never touch hot surface.
GB-2
Contents
1. For Safe Operation ................................................................... 4
2. Explanation of Symbols on the Machine .................................. 8
3. Installing Guide Bar and Saw Chain......................................... 9
4. Fuel and Chain Oil .................................................................. 10
5. Operating the Engine ............................................................. 11
6. Sawing .................................................................................... 12
7. Maintenance ........................................................................... 14
8. Maintenance of Saw Chain and Guide Bar ............................ 15
9. Troubleshooting Guide ........................................................... 16
10. Disposal .................................................................................. 16
11. Specifications ......................................................................... 16
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 engine.
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 cutting. Keep bystanders and animals
out of the work area. Children, pets
and bystanders should be a minimum
of 10 m away when you start or operate the chain saw.
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 running. Use a firm grip with thumb and
fingers encircling the chain saw
handles.
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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 damaged 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 flywheel to disintegrate.)
15. Always shut off the engine before
setting it down.
16. Use extreme caution when cutting
small size brush and saplings because 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 released.
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 operation.
19. Keep the handles dry, clean and free
of oil or fuel mixture.
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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 dangerous 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 cover, 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 serious burns
(3)
because of high temperature.
(1) muffler guard
(2) guide bar
(2)
(3) saw chain
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
a lightning 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 towards 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 several
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 front
handle, when the engine is running.
Use a firm grip with thumbs and fingers encircling the chain saw
handles. A firm grip will help you reduce kickback and maintain control
of the saw.
(3) Make certain that the area in which
you are cutting is free from obstructions. 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 sharpening
and maintenance instructions for the
saw chain.
(7) Only use replacement bars and
chains specified by the manufacturer
or the equivalent.
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 permanent and you won’t be able to feel things at all;
• you will have difficulty picking up small objects such
as screws or nails;
• the vibration white finger could happen more frequently 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 vibration).
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 disposing your machine, fuel or oil for the machine, be sure to allow your local regulations.
G2000T
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 emergency procedures should assist them.
Operators of tree service chainsaws for this work should
be trained in general safe climbing and work positioning techniques and shall properly equipped with harnesses, 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 harness:
a) secure the strop around the attachment point on the
rear of the saw;
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.
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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 attachment
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 firm 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 (particularly the left hand and arm)
• losing control from insecure work position resulting in
contact with the saw (unexpected movement during
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.
b) provide suitable karabiners to allow indirect (i.e. via
the strop) and direct attachment (i.e. at the attachment point on the saw) of saw to the operators harness;
c) ensure the saw is securely attached when it is being
sent up to the operator;
d) ensure the saw it secured to the harness before it is
disconnected from the means of ascent.
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 example,
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-5
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