Hitachi CS30EH: Owner's manual
Owner's manual: Hitachi CS30EH
G
B
CS30EH (S)/CS35EH (S)
Read the manual carefully before
operating this machine.
Owner's manual
GB-1
WARNING
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects
and other reproductive harm.
It is important that you read, fully understand
and observe the following safety precautions
and warnings. Careless or improper use of the
unit may cause serious or fatal injury.
Read, understand and follow all warnings and
instructions in this manual and on the unit.
One-handed usage not permitted. While cutting,
hold saw firmly with both hands with thumb
firmly locked around front handle.
Always wear eye, head and ear protectors when
using this unit.
The saw is specially designed for tree service
and therefore shall be used by trained opera-
tors only, in off-ground work in trees.
Warning, kickback danger. Be careful sudden
and accidental upward and/or backward mo-
tion of the guide bar.
It is important that you wear the protective clothing
for feet, legs, hands and fore-arms.
Before using your machine
Read the manual carefully.
Check that the cutting equipment is correctly assembled and adjusted.
Start the unit and check the carburetor adjustment. See "Maintenance".
GB-2
G
B
We,
Nikko Tanaka Engineering Co., Ltd., 3-4-29 Tsudanuma, Narashino, Chiba, Japan
Declare under our sole responsibility that the product, chain saw model
CS30EH (S)/CS35EH (S)
to which this declaration relates is in conformity with the essential safety requirements of directives.
98/37/EC, 89/336/EEC, 2000/14/EC
The following standards have been taken into consideration
EN ISO 11681-2:1998/Amd 1:2003
EN ISO 12100-1:2003,EN ISO 12100- 2:2003
CISPR12:2005
Notified body: 0404, SMP Svensk MaskinprovningAB, Fyrisborgsgaian 3, SE-754 50, Uppsala, Sweden,
has carried out EU type examination according to Article 8, point 2c, paragraph 3. The notified body
has issued certificate of EU type examination no: 404/99/644 according to Annex Vl, point 4.
Manufactured at : Chiba, Japan
on the 05/01/2007
Signature:
Serial No. up from E570001
Yoshio Osada
Position : Director
Index
What is what?
4
Warnings and safety instructions
5
Assembly procedures
6
Operating procedures
7
Maintenance
11
Specifications
15
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1. What is what?
Since this manual covers several models, there may be some difference between pictures and your unit. Use the instructions that apply to your unit.
1. Throttle trigger
2. Throttle trigger lockout (Safety trigger)
3. Ignition switch
4. Oil tank cap
5. Recoil starter
6. Front handle
7. Fuel tank cap
8. Choke control knob
9. Priming pump
10. Guide bar
11. Saw chain
12. Chain brake(Front hand guard)
13. Attachment point
14. Spiked bumper (optional)
15. Chain catcher
16. Guide bar cover
17. Combi box spanner
18. Owner's manual
19. Throttle lock
2. Warnings and safety instructions.
Operator safety
r unit.
WARNING!
WARNING!
Maintenance safety
This chain saw is designed especially for
Never modify the unit/machine in any way.
Maintain the unit/machine according to rec-
G
tree care and surgery. Only persons trained
Do not use your unit/machine for any job
ommended procedures.
except that for which it is intended.
Disconnect the spark plug before performing
B
in tree care and surgery may use this saw.
Observe all literature, procedures and
maintenance except for carburetor adjustments.
WARNING!
recommendations from the relevant
Keep others away when making carburetor
Never use chain saw without any safety
professional organization. Failure to do so
adjustments.
equipment or that has faulty safety
constitutes a high accident risk. We
Use only genuine HITACHI replacement parts
equipment. It could result in serious
recommend always using a rising platform
as recommended by the manufacturer.
personal injury.
for sawing in trees. Rappelling techniques
WARNING!
are extremely dangerous and require special
WARNING!
Improper maintenance could result in
training. The operator must be trained in and
Using guide bar/chain other than recom-
serious engine damage or in serious
familiar with the use of safety equipment and
mended by the manufacturer which are not
personal injury.
working and climbing techniques. Always
approved, could result in a high risk of
use the restraining equipment for both the
personal accidents or injury.
operator and the saw.
Always wear a safety face shield or goggles.
Fuel safety
Transport and storage
Gloves should be used when sharpening
Mix and pour fuel outdoors and where there are
Carry the unit/machine by hand with the
chain.
no sparks or flames.
engine stopped and the muffler away from
Always wear safety protective equipment such
Use a container approved for fuel.
your body.
as jacket, trousers, gloves, helmet, boots with
Do not smoke or allow smoking near fuel or the
Allow the engine to cool, empty the fuel tank,
steel toe-caps and non-slip soles whenever
unit/machine or while using the unit/machine.
and secure the unit/machine before storing or
you use a chain saw. For working in trees the
Wipe up all fuel spills before starting engine.
transporting in a vehicle.
safety boots must be suitable for climbing
Move at least 3 m away from fueling site before
Empty the fuel tank before storing the
techniques. Do not wear loose clothing,
starting engine.
unit/machine, It is recommended that the fuel
jewelry, short pants, sandals or go barefoot.
Stop engine before removing fuel cap.
be emptied after each use. If fuel is left in the
Secure hair so it is above shoulder length.
Empty the fuel tank before storing the
tank, store so fuel will not leak.
Do not operate this tool when you are tired, ill
unit/machine. It is recommended that the fuel
Store unit/machine out of the reach of
or under the influence of alcohol, drugs or
be emptied after each use. If fuel is left in the
children.
medication.
tank, store so fuel will not leak.
Clean and maintenance the unit carefully and
Never let a child or inexperienced person
Store unit/machine and fuel in area where fuel
store it in a dry place
operate the machine.
vapors cannot reach sparks or open flames
Make sure engine switch is off when trans-
Wear hearing protection.
from water heaters, electric motors or switches,
porting or storing.
Never start or run the engine inside a closed
furnaces. etc.
When transporting in a vehicle, cover chain
room or building. Breathing exhaust fumes can
with chain cover.
kill.
WARNING!
If situations occur which are not covered in this
For respiratory protection, wear a protection
Antivibration systems do not guarantee that
manual, take care and use common sense.
mask while emitting the chain oil mist and dust
you will not sustain whitefinger dis-ease or
Contact HITACHI dealer if you need assistance.
from sawdust.
carpal tunnel syndrome. Therefore, continual
Pay special attention to statements preceded by
Keep handles free of oil and fuel.
and regular users should monitor closely the
the following words:
Keep hands away from cutting equipment.
condition of their hands and fingers. If any of
Do not grab or hold the unit by the cutting
the above symptoms appear, seek medical
WARNING!
equipment.
advice immediately.
Indicates a strong possibility of severe
When the unit is turned off, make sure the
personal injury or loss of life, if instructions
cutting attachment has stopped before the unit
Cutting safety
are not followed.
is set down.
Do not cut any material other than wood or
When operation is prolonged, take a break
wooden objects.
CAUTION!
from time to time so that you may avoid
For respiratory protection, wear an aerosol
Indicates a possibility of personal injury or
possible whitefinger disease which is caused
protection mask when cutting the wood after
equipment damage, if instructions are not
by vibration.
insecticide has been applied.
followed.
The operator must obey the local regulations
Keep others including children, animals,
of cutting area.
bystanders and helpers outside the hazard
NOTE!
zone, Stop the engine immediately if you are
Helpful information for correct function and
WARNING!
approached.
use.
Long or continuous exposure to high noise
Hold the unit/machine firmly with the right
levels may cause permanent hearing
hand on the rear handle and the left hand on
impairment. Always wear approved hearing
the front handle.
protection when operating a unit/machine.
Keep firm footing and balance. Do not over-
reach.
Unit / machine safety
Keep all parts of your body away from the
Inspect the entire unit/machine before each
muffler and cutting attachment when the
use. Replace damaged parts. Check for fuel
engine is running.
leaks and make sure all fasteners are in place
Keep Bar/Chain below waist level.
and securely tightened.
Before felling a tree, the operator must be
Replace parts that are cracked, chipped or
accustomed to the sawing techniques of the
damaged in any way before using the
chain saw.
unit/machine.
Be sure to pre-plan a safe exit from a failing
Make sure the safety guard is properly
tree.
attached.
While cutting, hold saw firmly with both hands
Keep others away when making carburetor
with thumb firmly locked around front handle,
adjustments.
and stand with feet well balanced and your
Use only accessories as recommended for this
body balanced.
unit/machine by the manufacturer.
Stand to the side of the saw when cutting -
Never let the chain strike any obstacle.
never directly behind it.
If the chain makes contact, the machine should
Always keep the spiked bumper face to a tree,
be stopped and checked carefully.
because the chain may suddenly be drawn into
Make sure the automatic oiler is working.Keep
a tree.
the oil tank filled with clean oil. Never let chain
When completing a cut, be ready to hold up the
run dry on the bar.
units as it breaks into clear, so it will not follow
All chainsaw service, other than the items listed
through and cut your legs, feet or body, or
in the operator's/owner's manual, should be
contact an obstruction.
performed by competent chain-saw service
Be alert against kickback (when saw kicks up
personnel. (For example, if improper tools are
and back at operator). Never cut with the nose
used to remove the flywheel or if an improper
of the bar.
tool is used to hold the flywheel in order to
remove the clutch, structural damage to the
flywheel could occur and could subsequently
cause the flywheel to burst.)
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3. Assembly procedures
WARNING!
WARNING!
Never try to start engine without side case
7. Raise the bar end, and tighten the chain (1)
During operation, hold chain saw firmly
securely fastened.
by turning the tension adjustment bolt (2)
with both hands. A single hand operation
1. Remove chain bar clamp nuts (3).
clockwise. To check proper tension, lightly
may cause serious injury.
2. Remove the side case (1) as pinching the
lift up the center of chain and there should
Fuel
rear part of the side case (1) .(Fig. 1-1)
be about 0.5-1.0mm clearance between bar
* Install the spiked bumper (1) (If so equipped)
and edge of drive link (3). (Fig.1-4, 5)
to the unit with the two screws. (Fig.1-1B)
3. Install, the chain bar (1) onto the bolts (2),
CAUTION!
then push it toward the sprocket (3) as far as
PROPER TENSION IS EXTREMELY IM-
it will go. Make sure that the boss of chain
PORTANT!
tension adjust bolt (4) fits into the hole of the
8. Raise the bar end and securely tighten the
bar (5). (Fig.1-2)
chain bar clamp nuts with the box wrench.
(Fig. 1-4)
NOTE!
9. A new chain will stretch so adjust the chain
Slightly move the bar back and forth and make
after a few cuts and watch chain tension
sure the chain tension boss (4) fits into the hole
carefully for the first half hour of cutting.
(5) in the bar properly.
4. Confirm the direction of saw chain (1) is
NOTE!
correct as in the figure, and align the chain on
Check the chain tension frequently for
the sprocket. (Fig. 1-3)
optimum performance and durability.
5. Guide the chain drive links into the bar
groove all around the bar.
CAUTION!
6. Install the side case (1) onto the guide bar
When the chain is excessively tightened, the
clamp bolts after inserting it on the align-
bar and chain will be damaged rapidly.
ment/locking tab on the engine case (2).
Conversely, when the chain is excessively
(Fig. 1-1)
loosened, it may get out of the groove in the
Then fix the clamp nuts temporarily.
bar.
the fue
Always wear gloves when touching the chain.
G
B
Fig. 2-1 Fig. 2-1CFig. 2-1B
Fig. 2-2 Fig. 2-3 Fig. 2-4
4. Operating procedures
Fuel (Fig. 2-1)
Before fueling, clean the tank cap area care-
CAUTION!
fully, to ensure that no dirt falls into the tank.
Before starting, make sure chain brake is
WARNING!
Make sure that the fuel is well mixed by shaking
disengaged (if so equipped) and that the
The chain saw is equipped with a two-
the container, before fueling.
bar/chain does not touch anything.
stroke engine. Always run the engine on
1. Set ignition switch (1) to ON position.
fuel, which is mixed with oil.
Chain oil (Fig. 2-1B)
* Push priming bulb (5) several times so
Provide good ventilation, when fueling or
Fill up with chain oil (2). Always use good
that fuel flows through bulb into carburetor.
handling fuel.
quality chain oil. When the engine is running,
(If so equipped)(Fig. 2-3)
Fuel
the chain oil is automatically discharged.
2. With the safety trigger (2) pressed pull
Always use branded 89 octane unleaded
throttle trigger (4) and push throttle lock (3),
gasoline.
NOTE!
then slowly release the throttle trigger first,
Use genuine two-cycle oil or use a mix
When pouring fuel (1) or chain oil (2) into the
then the safety trigger.
between 25:1 to 50:1, please consult the oil
tank, place the unit with cap side up.
This will lock the throttle in starting position.
bottle for the ratio or HITACHI dealer.
(Fig. 2-1B)
(Fig.2-2)
Only for the state of California at 50:1.
3. Pull choke knob to choked position (4).
If genuine oil is not available, use an anti-
ADJUSTMENT OF CHAIN OIL SUPPLY
(Fig.2-3)
oxidant added quality oil expressly labeled for
The chain oil quantity discharged through the
4. Pull recoil starter briskly, taking care to keep
air-cooled 2-cycle engine use(JASO FC
lubrication system is factory adjusted to the
the handle in your grasp and not allowing it
GRADE OIL or ISO EGC GRADE). Do not use
maximum. Adjust the quantity in accordance
to snap back. (Fig.2-4)
BIA or TCW (2-stroke water-cooling type)
with the operating condition.
5. When you hear the engine want to start,
mixed oil.
Turn the adjusting screw (1) counterclockwise
return choke lever to RUN position (open).
Never use multi-grade oil (10 W/30) or waste
to decrease the quantity and turn it clockwise to
Then pull recoil starter briskly again.
oil.
increase the quantity. (Fig.2-1C)
Always mix fuel and oil in a separate clean
Do not try to turn the screw beyond level marks.
NOTE!
container.
If engine does not start, repeat procedures
Starting (Fig. 2-2, 3)
from 2 to 5.
Always start by filling half the amount of fuel,
6. After starting engine, pull throttle trigger to
release throttle lock. Then allow the engine
which is to be used. Then add the whole
WARNING!
When the engine starts with the throttle
about 2-3 minutes to warm up before
amount of oil. Mix (shake) the fuel mixture. Add
lock engaged, the engine speed is high
subjecting it to any load.
the remaining amount of fuel.
enough to make the chain rotate.
Mix (shake) the fuel-mix thoroughly before filling
the fuel tank.
Fueling
WARNING! (Fig.2-1B)
Always shut off the engine before refuel-
ing.
Slowly open the fuel tank (1), when filling
up with fuel, so that possible over-
pressure disappears.
Tighten the fuel cap carefully, after fuel-
ing.
Always move the unit at least 3 m (10 ft.)
from the fueling area before starting.
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Fig.2-4B
Fig.2-6Fig.2-5
WARNING!
BASIC TECHNIQUES FOR MAKING FEL-
Do not carry the machine with the engine
LING, LIMBING AND BUCKING CUTS
running.
The intention of the following information is
Stopping (Fig. 2-6)
to provide you with the general introduction
Decrease engine speed, and push ignition
to wood cutting techniques.
switch to stop position.
WARNING!
This information does not cover all
WARNING!
specific situations, which may depend on
KICKBACK DANGER (Fig. 2-7)
differ-ences in terrain, vegetation, kind of
One of the most severe dangers when
wood, form and size of trees, etc. Consult
working with a chain saw is the possibility of
your servicing dealer, forestry agent or
kickback. Kickback may occur when the
local forestry schools for advice on
upper tip of the guide bar touches an object,
specific woodcutting problems in your
Fig.2-7
or when the wood closes in and pinches the
area,
saw chain in the cut. Tip contact in some
This will make your work more efficient
cases may cause a lightning fast reverse
and safer.
NOTE!
reaction, kicking the guide bar up and back
Icing protection system (Fig.2-4B)
toward you. Pinching the saw chain along the
WARNING!
When you use the unit in winter time or cold
top of the guide bar may also push the guide
Avoid cutting in adverse weather condi-
weather, move the lever forward (2) to protect
bar rapidly back towards you. Either of these
tions, such as dense fog, heavy rain,
carburetor from icing, otherwise just leave it in
reactions may cause you to lose control of the
bitter cold, high winds, etc.
its regular position (1).
saw which could result in serious personal
Adverse weather is often tiring to work in
injury.
and creates potentially dangerous condi-
Chain brake operation (Fig. 2-5)
Even though your saw has safety built into its
tions such as slippery ground.
Chain brake (1) (If so equipped) is designed to
design, you should not rely on these safety
High winds may force the tree to fall in an
activate in an emergency such as kick-back
features exclusively.
unexpected direction causing property
action. Please check to verify that it works
Know where your bar tip is at all times. Kickback
damage or personal injury.
properly before use.
does occur if you allow the kickback zone (1) of
Application of brake is made by moving the
the bar to touch an object. Do not use that area.
CAUTION!
front guard towards the bar. During the chain
Kickback from pinching is
Never use a chainsaw to pry or for any
brake operation, even if the throttle lever is
caused by a cut closing and pinching the
purpose for which it is not intended.
pulled, the engine speed does not increase
upper side of the guide bar. Study your cut
and the chain does not turn. To release the
and make sure it will open as you cut through.
WARNING!
brake, pull up the chain brake lever.
Maintain control when the engine is running
Avoid stumbling on obstacles such as
by always keeping a firm grip on the saw with
stumps, roots, rocks, branches and fallen
How to confirm:
your right hand on the rear handle, your left
trees. Watch out for holes and ditches. Be
1) Turn off the engine.
hand on the front handle and your thumbs
extremely cautious when working on
2) Holding the chain saw horizontally, release
and fingers encircling the handles. Always
slopes or uneven ground. Shut off the
your hand from the front handle, hit the tip of
hold the saw with both hands during operation
saw when moving from one work place to
the guide bar to a stump or a piece of wood,
and cut at high engine speed.
another.
and confirm brake operation. Operating level
Always cut at wide open throttle. A slow
varies by bar size.
WARNING!
moving chain can easily catch and force the
Do not overreach or cut above shoulder
saw to jerk.
height.
WARNING!
Use extra caution when felling, and do not
use the saw in a nose-high position or
above shoulder height.
CHAIN CATCHER
In case the brake is not effective, ask our dealer
The chain catcher is located on the power head
for inspection and repairs.
just below the chain to further prevent the
a tree.
If the engine keeps rotating at high speed with
possibility of a broken chain striking the
the brake engaged, the clutch will overheat
chainsaw user.
causing trouble.
When the brake engages during operation,
WARNING!
immediately release the throttle lever to stop the
Do not stand in-line with chain when
engine.
cutting.
G
B
Fig. 2-7B
Fig. 2-7C
Fig. 2-7F
Fig. 2-7E
Fig. 2-7D
WARNING!
FELLING
Never saw completely through the trunk. Always
Never use the saw with only one hand.
Felling is more than cutting down a tree. You
leave a hinge.
You cannot control the saw properly and
must also bring it down as near to an intended
The hinge guides the tree. If the trunk is
you may lose control and injure yourself
place as possible without damaging the tree or
completely cut through, you lose control over
severely.
anything else.
the felling direction.
Keep the saw body close to your body to
Before felling a tree, carefully consider all
Insert a wedge or a felling lever in the cut well
improve control and reduce strain.
conditions which may effect the intended
before the tree becomes unstable and starts to
When cutting with the bottom part of the
direction, such as:
move. This will prevent the guide bar from
chain the reactive force will pull the saw
Angle of the tree. Shape of the crown. Snow
binding in the felling cut if you have misjudged
away from you towards the wood you are
load on the crown. Wind conditions. Obstacles
the falling direction. Make sure no people have
cutting.
within tree range (e.g., other trees, power lines,
come into the range of the falling tree before
The saw will control the feeding speed
roads, buildings, etc.).
you push it over.
and sawdust will be directed towards you.
(Fig. 2-7B)
WARNING!
FELLING CUT, TRUNK DIAMETER MORE
Always observe the general conditions of
THAN TWICE GUIDE BAR LENGTH
When cutting with the upper part of the
the tree. Look for decay and rot in the trunk
Cut a large, wide notch. Then cut a recess into
chain the reactive force will push the saw
which will make it more likely to snap and
the center of the notch. Always leave a hinge
towards you and away from the wood you
start to fall before you expect it.
on both sides of the center cut. (Fig. 2-7E)
are cutting. (Fig. 2-7C)
Look for dry branches, which may break and
hit you when you are working.
Complete the felling cut by sawing around the
WARNING!
Always keep animals and people at least
trunk as in the Fig. 2-7F.
There is a risk of kickback if the saw is
twice the tree length away while felling.
pushed far enough so that you begin to cut
Clear away shrubs and branches from
WARNINGI
with the nose of the bar.
around the tree.
These methods are extremely dangerous
The safest cutting method is to cut with the
Prepare a path of retreat away from the
because they involve the use of the nose of
bottom part of the chain. Sawing with the
felling direction.
guide bar and can result in kickback. Only
upper part makes it much more difficult to
properly trained professionals should attempt
control the saw and increases the risk of
BASIC RULES FOR FELLING TREES
these techniques.
kickback.
Normally the felling consists of two main
cutting operations, notching and making the
NOTE!
felling cut.
Always keep the spiked bumper face to a tree,
Start making the upper notch cut on the side of
because the chain may suddenly be drawn into
the tree facing the feeling direction. Look
a tree.
through the kerf as you saw the lower cut so
you do not saw too deep into the trunk.
The notch should be deep enough to create a
hinge of sufficient width and strength. The
notch opening should be wide enough to direct
the fall of the tree as long as possible.
Saw the felling cut from the other side of the
tree between one and two inches (3-5 cm)
above the edge of the notch. (Fig. 2-7D)
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s
rotate. If
wise) th
e
until the
Open (c
cutting
a
the corr
e
smoothl
y
when th
e
If the cu
t
speed a
WA
R
When t
h
attach
m
5. M
rotate.
a
Fig.2-7H
Fig.2-7G
Fig.2-7J
Fig.2-7K
Fig.2-7L
THICK LOG, LARGER THAN GUIDE BAR
LENGTH
Begin by cutting on the opposite side of the
log. Pull the saw towards you followed by
previous procedure. (Fig. 2-7J)
If the log is lying on the ground make a boring
cut to avoid cutting into the ground. Finish with
a bottom cut. (Fig. 2-7K)
WARNING! KICKBACK DANGER!!
Do not attempt a boring cut if you are not
properly trained. A boring cut involves the use
of the nose of the guide bar and can result in
kickback.
Fig.2-7M Fig.2-7N
CROSS CUTTING LOGS, PRESSURE ON
BOTTOM
LIMBING
CROSS CUTTING/BUCKING
Take a firm stance. Begin with a bottom cut.
Limbing is removing the branches from a feller
Before starting to cut through the log, try
The depth of the cut should be about 1/3 of
tree.
to imagine what is going to happen. Look
the log diameter.
out for stresses in the log and cut through
Finish with an upper cut. The saw cuts should
WARNING!
it in such a manner that the guide bar will
meet. (Fig. 2-7L)
A majority of kickback accidents occur during
not get pinched.
limbing.
THICK LOG, LARGER THAN GUIDE BAR
Do not use the nose of the guide bar. Be
CROSS CUTTING LOGS, PRESSURE ON
LENGTH
extremely cautious and avoid contacting the
TOP
Begin by cutting on the opposite side of the
log, other limbs or objects with the nose of the
Take a firm stance. Begin with an upper
log. Pull the saw towards you, followed by
guide bar. Be extremely cautious of limbs
cut. Do not cut too deeply, about 1/3 of
previous procedure.
under tension. They can spring back towards
the log diameter is enough.
Make a boring cut if the log is close to the
you and cause loss of control resulting in
Finish with a bottom cut. The saw cuts
ground.
injury. (Fig. 2-7G)
should meet. (Fig. 2-7H)
Finish with a top cut. (Fig. 2-7M)
Stand on the left side of the trunk. Maintain a
WARNING! KICKBACK DANGER!!
secure footing and rest the saw on the trunk.
Do not attempt a boring cut if you are not
Hold the saw close to you so that you are in
properly trained. A boring cut involves the
full control of it. Keep well away from the chain.
use of the nose of the guide bar and can
Move only when the trunk is between you and
result in kickback. (Fig. 2-7N)
the chain. Watch out for spring back of limbs
under tension.
IF THE SAW GETS STUCK
Stop the engine.
LIMBING THICK BRANCHES
Raise the log or change its position, using a
When limbing thick branches, the guide bar
thick branch or pole as a lever.
may get pinched easily. Branches under
Do not try to pull the saw free. If you do, you
tension often snap up, so cut troublesome
can deform the handle or be injured by the
branches in small steps. Apply the same
saw chain if the saw is suddenly released.
principles as for cross cutting.
Think ahead and be aware of the possible
consequences of all your actions.
G
B
Fig. 3-1 Fig. 3-3Fig. 3-2
5. Maintenance
NOTE!
Spark plug (Fig. 3-3)
Some models sold areas with strict exhaust
The spark plug condition is influenced by:
MAINTENANCE, REPLACEMENT, OR RE-
emission regulation do not have high and low
An incorrect carburetor setting.
PAIR OF THE EMISSION CONTROL DE-
speed carburetor adjustments. Such
Wrong fuel mixture (too much oil in the
VICES AND SYSTEM MAY BE
adjustments may allow the engine to be
gasoline)
PERFORMED BY ANY NON-ROAD ENGINE
operated outside of their emission compliance
A dirty air filter.
REPAIR ESTABLISHMENT OR
limits. For these models, the only carburetor
Hard running conditions (such as cold
INDIVIDUAL.
adjustment is idle speed.
weather).
Carburetor adjustment (Fig. 3-1)
For models that equipped with low and high
These factors cause deposits on the spark
speed adjustments; carburetors are pre set at
plug electrodes, which may result in malfunc-
WARNING!
the factory Minor adjustments may optimize
tion and starting difficulties. If the engine is
g.2-7L
Never start the engine without the complete
performance based on climate, altitude, etc.
low on power. difficult to start or runs poorly at
clutch cover. Otherwise the clutch can
Never turn the adjustment screws in increments
idling speed, always check the spark plug first.
come loose and cause personal injuries.
greater than 90 degrees, as engine damage
If the spark plug is dirty, clean it and check the
In the carburetor, fuel is mixed with air. When
can result from incorrect adjustment If you are
electrode gap. Readjust if necessary. The
the engine is test run at the factory, the
not familiar with type of adjustment-assistance
correct gap is 0.6 mm (.024″). The spark plug
carburetor is adjusted. A further adjustment
HITACHI dealer.
should be replaced after about 100 operation
may be required, according to climate and
hours or earlier if the electrodes are badly
altitude. The carburetor has one adjustment
eroded.
Air filter (Fig. 3-2)
possibility:
The air filter (1) must be cleaned from dust and
T = Idle speed adjustment screw.
NOTE!
dirt in order to avoid:
In some areas, local law requires using a
Carburetor malfunctions.
Idle speed adjustment (T)
resistor spark plug to suppress ignition signals.
Starting problems.
Check that the air filter is clean. When the idle
If this machine was originally equipped with
Engine power reduction.
speed is correct, the cutting attachment will not
resistor spark plug, use same type of spark
Unnecessary wear on the engine parts.
rotate. If adjustment is required, close (clock-
plug for replacement.
Abnormal fuel consumption.
wise) the T-screw, with the engine running,
Clean the air filter daily or more often if working
until the cutting attachment starts to rotate.
in exceptionally dusty areas.
Open (counter-clockwise) the screw until the
cutting attachment stops. You have reached
Cleaning the air filter
the correct idle speed when the engine runs
Remove the air filter cover (2) and the filter (1).
smoothly in all positions well below the rpm
Rinse them in warm soap suds. Check that the
when the cutting attachment starts to rotate.
filter is dry before reassembly. An air filter that
If the cutting attachment still rotates after idle
has been used for some time cannot be
speed adjustment, contact HITACHI dealer.
cleaned completely. Therefore, it must regularly
be replaced with a new one. A damaged filter
WARNING!
must always be replaced.
When the engine is idling the cutting
attachment must under no circumstances
rotate.
GB-11
A
R
t
he
y
b
oring
h with
t
e
use
u
lt in
O
N
c
ut.
3
of
h
ould
A
R
t
he
y
e
not
s
the
c
an
n
g a
y
ou
h
e
d
.
W
GB-12
A
Glove
s
chain.
W
A
Be sur
the ch
a
break
a
1. Top
2. Wo
3. Sid
e
4. Gul
5. He
e
6. Ch
a
7. Riv
e
8. To
e
9. Dep
10. Co
r
dep
11. Sli
g
no
n
CHAIN
(Fig. 4
12. Top
top
13, Fro
-
Fig.3-4 Fig.3-6
Fig.3-5
Fig.3-7
Fig.3-8
Fig.3-9
Fig.3-10
Oiler port (Fig. 3-4)
Chain oil filter (Fig. 3-8)
Cleaning the muffler (Fig. 3-10)
Clean the chain oiler port (1) whenever
Remove the oil filter and thoroughly wash it in
Remove the muffler (1) and spark arrestor (if so
possible.
solvent
equipped), and clean out any excess carbon
from the exhaust port or muffler inlet every 100
Guide bar (Fig. 3-5)
Cleaning the cylinder fins (Fig, 3-9)
hours of operation.
Before using the machine, clean the groove
When wood chips are caught between cylinder
and oiler port (1) in the bar with the special
fins (1), the engine may overheat, resulting in
For long-term storage
gauge offered as an optional accessory.
lower output. To avoid this, always keep
Drain all fuel from the fuel tank. Start and let
cylinder fins and fan case clean.
engine run until it stops. Repair any damage
Side case (Fig. 3-6)
Every 100 operating hours, or once a year
which has resulted from use. Clean the unit with
Always keep the side case and drive area
(more often if conditions require), clean fins
a clean rag, or the use of high pressure air
clean of saw dust and debris.
and external surfaces of engine of dust, dirt
hose. Put a few drops of two-cycle engine oil
Periodically apply oil or grease to this area to
and oil deposits which can contribute to im-
into the cylinder through the spark plug hole,
protect from corrosion as some trees contain
proper cooling.
and spin the engine over several times to
high levels of acid.
distribute oil. Cover the unit and store it in a dry
area.
Fuel filter (Fig. 3-7)
Remove the fuel filter from the fuel tank and
thoroughly wash it in solvent. After that, push
the filter into the tank completely.
NOTE!
If the filter is hard due to dust and dirt, replace
it.
G
B
Fig. 4-2
Fig. 4-1
Fig. 4-4
Fig. 4-3
Fig. 4-5
Fig. 4-6
CHAIN SHARPENING Parts of a cutter.
LOWERING DEPTH GAUGES WITH A FILE
(Fig. 4-1, 2)
1) If you sharpen your cutters with a file holder,
check and lower the depth.
WARNING!
2) Check depth gauges every third sharpening.
Gloves should be used when sharpening
3) Place depth gauge tool on cutter. If depth
chain.
gauge projects, file it level with the top of the
tool. Always file from the inside of the chain
WARNING!
toward an outside cutter. (Fig. 4-3)
Be sure to round off the front edge to reduce
4) Round off front corner to maintain original
the chance of kickback or tie-strap
shape of depth gauge after using depth
breakage.
gauge tool. Always follow the recommended
depth gauge setting found in the
1. Top plate
maintenance or operator manual for your
2. Working corner
saw. (Fig. 4-4)
3. Side plate
4. Gullet
GENERAL INSTRUCTIONS FOR FILING
5. Heel
CUTTERS
6. Chassis
File (1) cutter on one side of the chain from the
7. Rivet hole
inside out.
8. Toe
File on forward stroke only. (Fig. 4-5)
9. Depth gauge
5) Keep all cutters the same length. (Fig. 4-6)
10. Correct angle on top plate (degree of angle
depends on chain type)
11. Slightly protruding "hook" or point (curve on
non-chisel chain)
12. Top of depth gauge at correct height below
top plate
13, Front of depth gauge rounded off
GB-13
F
ig.3-6
F
ig.3-9
o
r (if so
b
on
r
y 100
let
a
ge
nit with
a
ir
e
oil
ole,
n
a dry
6. Sp
GB-14
e
Engine Si
z
Spark Plu
g
Fuel Tank
Chain Oil
T
Dry Weig
h
(Without
g
Guide bar
Chain pitc
Chain ga
u
Sound pr
e
Sound po
w
Sound po
w
Fig.4-7
Fig.4-7B
6) File enough to remove any damage to
Maintenance schedule
cutting edges (side plate (1) and top plate
Below you will find some general maintenance
(2)) of cutter. (Fig. 4-7)
instructions. For further information please
SHARPENING ANGLES FOR SHARPENING
contact HITACHI dealer.
SAW CHAIN (Fig. 4-7B)
Daily maintenance
Clean the exterior of the unit.
Clean the chain oil filter port.
Clean the groove and oil filter port in the
guide bar.
Clean the side case of saw dust.
Check that the saw chain is sharp.
Check that the bar nuts are sufficiently
tightened.
Make sure that the chain transport guard is
undamaged and that it can be securely
fitted.
Check that nuts and screws are sufficiently
tightened.
Weekly maintenance
Check the starter, especially cord and return
spring.
Clean the exterior of the spark plug.
Remove the spark plug and check the
electrode gap. Adjust it to 0.6 mm (.024 ") or
change the spark plug.
Clean the cooling fins on the cylinder and
check that the air intake at the starter is not
clogged.
Clean the air filter.
Monthly maintenance
Rinse the fuel tank with gasoline, and clean
fuel filter.
Clean chain oil filter.
Clean the exterior of the carburetor and the
space around it.
Clean the fan and the space around it.
Clean the muffler of carbon.
6. Specifications
MODEL CS30EH (S)/CS35EH (S)
G
B
Vibration level (m/s
2
) by ISO22867
Engine Size (ml)
............................................... 34
Front handle ..................................................... 7.4
Rear handle ...................................................... 9.0
Spark Plug
....................................................... Campion CJ-8Y or RCJ-8Y
NGK BPM-6A or BPMR-6A
or equivalent
-1
Max. engine speed (min
......................... 11,500
)
Fuel Tank Capacity (mI)
................................... 300
-1
Idle engine speed (min
............................ 2,800
)
Chain Oil Tank Capacity (mI)
............................ 190
Type of guide bar
.........................................
Dry Weight (kg)
................................................ 3.6
(Without guide bar and chain)
Type of chain
.............................................. 91 VG
(Oregon)
Guide bar length (mm)
CS30EH (S)........ 300 (12")
CS35EH (S)........ 350 (14")
Max. chain speed (m/sec)
............................. 21.9
Chain pitch (mm)
.............................................. 9.52 (3/8")
Sprocket (number of teeth)
.......................... 6
Chain gauge (mm)
............................................ 1.27 (0.05")
Sound pressure level (dB(A)) by ISO22868
..... LpA
NOTE : Equivalent noise level/vibration levels are calculated as the
97.0
time-weighted energy total for noise/vibration levels under
various working conditions with the following time distribution:
1/3 idle, 1/3 full, 1/3 racing speed.
* All data subject to change without notice.
Sound power level (dB(A)) by ISO22868 ......... Lw measured
106.7
Sound power level (dB(A)) by 2000/14/EC ..... LwA
107
GB-15
g
.4-7B
GB-16
