Hitachi CG 25EUS, CG 25EUS L Safety Instructions And Instruction Manual
Model
Modèle
Modelo
CG 25EUS (L)
Grass Tri m me r/ Br u sh Cutter
Coupe-Herbes/Débroussailleuse
Motoguadañas/Desbrozadoras
SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL
WARNING
IMPROPER OR UNSAFE use of this power tool can result in death or serious bodily injury!
This manual contains important information about product safety. Please read and understand this manual
BEFORE operating the power tool. Please keep this manual available for other users and owners before they
use the power tool. This manual should be stored in safe place.
INSTRUCTIONS DE SECURITE ET MODE D’EMPLOI
AVERTISSEMENT
Une utilisation INCORRECTE OU DANGEREUSE de cet outil motorisé peut entraîner la mort ou de
sérieuses blessures corporelles !
Ce mode d’emploi contient d’importantes informations à propos de la sécurité de ce produit. Prière de
lire et de comprendre ce mode d’emploi AVANT d’utiliser l’outil motorisé. Garder ce mode d’emploi à la
disponibilité des autres utilisateurs et propriétaires avant qu’ils utilisent l’outil motorisé. Ce mode d’emploi
doit être conservé dans un endroit sûr.
INSTRUCCIONES DE SEGURIDAD Y MANUAL DE INSTRUCCIONES
ADVERTENCIA
¡La utilización INAPROPIADA O PELIGROSA de esta herramienta eléctrica puede provocar lesiones
graves o la muerte!
Este manual contiene información importante sobre la seguridad del producto. Lea y comprenda este manual
ANTES de utilizar la herramienta eléctrica. Guarde este manual para que puedan leerlo otras personas
antes de utilizar la herramienta eléctrica. Este manual debe ser guardado en un lugar seguro.
English
Meanings of symbols NOTE: Some units do not carry them
Symbols
WARNING
The following show symbols used for the machine. Be sure that you understand their meaning
before use.
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.
Do not use metal/rigid blades when this sign is shown on the unit.
Indicates blade guard location for a trimmer head or Brain head.
Indicate handle location. Do not attach handle above this point.
WARNING
● Read the operator’s manual and follow all warnings and safety instructions. Failure to do
so can result in serious injury to the operator and /or bystanders.
● Objects may be thrown or ricochet in all directions. ALWAYS WEAR EYE PROTECTION.
● Keep bystanders at least 50 feet (15 m) away.
● To reduce the chance of hearing loss, always wear ear protection.
● To reduce the risk of injury from loss of control, never use a metal blade on a curved shaft
grass trimmer. Never use a metal blade on any brush cutter without barrier bar or bicycle
handle confi guration and safety strap.
● Use of a blade may cause a sudden sideways, forward or backward motion of the brush
cutter when the blade contacts a solid object. See the owner’s manual for model specifi c
details.
Contents
WHAT IS WHAT? ...................................................3
WARNINGS AND SAFETY INSTRUCTIONS .........4
SPECIFICATIONS ..................................................6
ASSEMBLY PROCEDURES ..................................6
OPERATING PROCEDURES ................................. 8
MAINTENANCE ...................................................11
IMPORTANT NOTICE ..........................................14
2
WHAT IS WHAT?
Since this manual covers several models, there may
be some diff erence between these illustrations and
your unit. Use the instructions that apply to your unit.
English
1. Fuel cap
2. Throttle trigger
3. Starter handle
4. Blade guard
5. Cutting attachment
6. Drive shaft tube
7. Handle
8. Ignition switch
9. Choke lever
10. Engine
11. Angle transmission
12. Oil cap
10
8
7
2
6
11
5
4
3
9
1
12
3
English
WARNINGS AND SAFETY
INSTRUCTIONS
Operator safety
○ Always wear a safety face shield or goggles.
○ Always wear heavy, long pants, boots and gloves.
Do not wear loose clothing, jewelry, short pants,
sandals or go barefoot.
Secure hair so it is above shoulder length.
○ Do not operate this tool when you are tired,
ill or under the infl uence of alcohol, drugs or
medication.
○ Never let a child or inexperienced person operate
the machine.
○ Wear hearing protection. Pay attention to your
surroundings. Be aware of any bystanders who
may be signaling a problem. Remove safety
equipment immediately upon shutting off engine.
○ Wear head protection.
○ Never start or run the engine inside a closed room
or building. Breathing exhaust fumes can kill.
○ Keep handles free of oil and fuel.
○ Keep hands away from cutting equipment.
○ Do not grab or hold the unit by the cutting
equipment.
○ When the unit is turned off , make sure the cutting
attachment has stopped before the unit is set
down.
○ When operation is prolonged, take a break from
time to time so that you may avoid possible Hand-
Arm Vibration Syndrome (HAVS) which is caused
by vibration.
WARNING
● Antivibration systems do not guarantee that
you will not sustain HAVS or carpal tunnel
syndrome. Therefore, continual and regular
users should monitor closely the condition
of their hands and fi ngers. If any symptoms
of the above appear, seek medical advice
immediately.
● If you are using any medical electric/electronic
devices such as a pacemaker, consult your
physician as well as the device manufacturer
prior to operating any power equipment.
Unit/machine safety
○ Inspect the entire unit/machine before each use.
Replace damaged parts. Check for fuel leaks and
make sure all fasteners are in place and securely
tightened.
○ Replace parts that are cracked, chipped or
damaged in any way before using the unit/
machine.
○ Make sure the safety guard is properly attached.
○ Keep others away when making carburetor
adjustments.
○ Use only accessories as recommended for this
unit/machine by the manufacturer.
WARNING
Never modify the unit/machine in any way. Do
not use your unit/machine for any job except
that for which it is intended.
Fuel safety
○ Pour fuel outdoors and where there are no sparks
or fl ames.
○ Use a container approved for fuel and oil.
○ Do not smoke or allow smoking near fuel or the
unit/machine or while using the unit/machine.
○ Wipe up all fuel spills before starting engine.
○ Move at least 10 ft (3 m) away from fueling site
before starting engine.
○ Stop engine before removing fuel cap and oil cap.
○ Empty the fuel tank before storing the unit/
machine. It is recommended that the fuel be
emptied after each use. If fuel is left in the tank,
store so fuel will not leak.
○ Store unit/machine and fuel in area where fuel
vapors cannot reach sparks or open fl ames
from water heaters, electric motors or switches,
furnaces, etc.
WARNING
Fuel is easy to ignite or get explosion or
inhale fumes, so that pay special attention
when handling or fi lling fuel.
Cutting safety
○ Do not cut any material other than grass and
brush.
○ Inspect the area to be cut before each use.
Remove objects which can be thrown or become
entangled.
○ For respiratory protection, wear an aerosol
protection mask when cutting the grass after
insecticide is scattered.
○ Keep others including children, animals,
bystanders and helpers outside the 16 ft. (5 m)
hazard zone. Stop the engine immediately if you
are approached.
○ Always keep the engine on the right side of your
body.
○ Hold the unit/machine fi rmly with both hands.
○ Keep fi rm footing and balance. Do not over-
reach.
○ Keep all parts of your body away from the muffl er
and cutting attachment when the engine is
running.
○ Keep cutting attachment below waist level.
4
English
○ When relocating to a new work area, be sure to
shut off the machine and ensure that all cutting
attachments are stopped.
○ Never place the machine on the ground when
running.
○ Always ensure that the engine is shut off and any
cutting attachments have completely stopped
before clearing debris or removing grass from the
cutting attachment.
○ Always carry a fi rst-aid kit when operating any
power equipment.
○ Never start or run the engine inside a closed room
or building and/or near the infl ammable liquid.
Breathing exhaust fumes can kill.
Maintenance safety
○ Maintain the unit/machine according to
recommended procedures.
○ Disconnect the spark plug before performing
maintenance except for carburetor adjustments.
○ Keep others away when making carburetor
adjustments.
○ Use only genuine HITACHI replacement parts as
recommended by the manufacturer.
Transport and storage
○ Carry the unit/machine by hand with the engine
stopped and the muffl er away from your body.
○ Allow the engine to cool, empty the fuel tank,
and secure the unit/machine before storing or
transporting in a vehicle.
○ Empty the fuel tank before storing the unit/
machine. It is recommended that the fuel be
emptied after each use. If fuel is left in the tank,
store so fuel will not leak.
○ Store unit/machine out of the reach of children.
○ Clean and maintain the unit carefully and store it
in a dry place.
○ Make sure engine switch is off when transporting
or storing.
○ When transporting in a vehicle, cover blade with
blade cover.
CAUTION
Indicates a possibility of personal injury or
equipment damage if instructions are not
followed.
NOTE
Helpful information for correct function and use.
CAUTION
Do not disassemble the recoil starter. You
may get a possibility of personal injury with
recoil spring.
If situations occur which are not covered in this
manual, take care and use common sense. Contact
HITACHI dealer if you need assistance. Pay special
attention to statements preceded by the following
words:
WARNING
Indicates a strong possibility of severe
personal injury or loss of life if instructions
are not followed.
5
English
SPECIFICATIONS
Engine Size
(cu. in.)
Spark Plug
Fuel Tank Capacity
(fl . oz)
Engine Oil Capacity
(fl . oz)
Dry Weight (lbs) 11.0 (5.0 kg)
Sound pressure
level
LpA (dB (A))
(EN27917)
Measured sound
power level LwA
(dB (A))
Model CG25EUS (L)
1.53 (25 mℓ)
NGK CMR5H
or equivalent
16.7 (0.5ℓ)
2.7 (80 mℓ)
81.8 78.6
101.8 98.6
ASSEMBLY PROCEDURES
Drive shaft to engine (Fig. 1)
Loosen tube locking bolt (1) so that the bolt point will
not obstruct drive shaft tube to be inserted. When
inserting drive shaft tube, hold the tube locking bolt
outward preventing inside fi tting from obstructing as
well.
Insert the drive shaft into the clutch case of the
engine properly until the marked position (2) on the
drive shaft tube meets the clutch case.
1
3
2
Fig. 1
NOTE
○ When it is hard to insert drive shaft up to the
marked position on the drive shaft tube, turn drive
shaft by the cutter mounting end clockwise or
counter-clockwise. Tighten tube locking bolt lining
up the hole in the shaft tube.
Then tighten clamp bolt securely (3).
Installation of handle (Fig. 2)
Guaranteed sound
power level LwA
(dB (A))
Vibration level
(m/s2) (ISO7916)
Front handle
Rear handle
NOTE
Equivalent noise level/vibration level are
calculated as the time-weighted energy total
for noise/vibration levels under various working
conditions with the following time distribution: 1/2
Idle, 1/2 racing.
* All data is subject to change without notice.
6
104 101
4.8 4.5
3.2 4.6
Fig. 2
Attach the handle to the drive shaft tube with the
angle towards the engine.
Adjust the location to the most comfortable position
before operation.
NOTE
If your unit has handle location label on drive shaft
tube, follow indication.
English
Throttle wire/stop cord
Remove air cleaner cover. (Fig. 3)
Fig. 3
Connect stop cords. (Fig. 4)
Fig. 4
Connect throttle wire end to carburetor and install
swivel cap (4) (if so equipped) where is included in
tool bag, onto swivel. (Fig. 5)
4
Fig. 5
NOTE
If your unit has guard location label on drive shaft
tube, follow the indication.
CAUTION
● Some blade guards are equipped with sharp
line limiters. Be careful with handling it.
Installation of semi-auto cutting head
1. Function
Automatically feeds more nylon cutting line when
it is tapped at low rpm (not greater than 4,500
rpm).
Specifi cations
Code
6696454
Applicable nylon cord
2. Precautions
○ The case must be securely attached to the cover.
○ Check the cover, case and other components for
○ Check the case and button for wear.
If the wear limit mark on the case is no longer
○ The cutting head must be securely mounted to the
○ For outstanding performance and reliability,
Type of
attaching
No.
screw
Female
screw
Cord diameter: 0.12 in. (Φ3.0 mm)
Length: 6.56 ft. (2 m)
Cord diameter: 0.10 in. (Φ2.4 mm)
Length: 13.12 ft. (4 m)
cracks or other damage.
visible or there is a hole in the bottom of the button,
change the new parts immediately. (Fig. 7)
unit’s gear case.
always use Hitachi nylon cutting line. Never
use wire or other materials that could become a
dangerous projectile.
Direction of
rotation
Counterclockwise
Size of
attaching
screw
M10×
P1.25-LH
Attach the air cleaner cover.
Installation of blade guard (Fig. 6)
Install the blade guard as shown in Fig. 6.
Fig. 6
5
○ If the cutting head does not feed cutting line
properly, check that the nylon line and all
components are properly installed. Contact your
Hitachi dealer if you need assistance.
6
Fig. 7
7
English
3. Installation (Fig. 8)
○ Install cutting head on gear case of grass
trimmers/brush cutters. The mounting nut (7) is
left-hand-threaded. Turn clockwise to loosen/
counterclockwise to tighten.
8
7
Fig. 8
NOTE
○ Since the cutter holder cap is not used here, keep
it for when a metal blade is used, if so equipped.
○ Insert Allen wrench (8) into the hole of the gear
case in order to lock the cutter holder.
Installation of cutting blade (Fig. 9)
(If so equipped)
When installing a cutting blade, make sure that there
are no cracks or any damage to it and that the cutting
edges are facing the correct direction.
10
11
9
12
NOTE
○ When installing cutter holder cap (9), be sure to
set concave side upward.
Insert the allen wrench (10) into the hole of the
angle transmission in order to lock the cutter
holder (11). Please note that the cutter fi xing bolt
or nut (12) has left-handed threads, (clockwise to
loosen/counter-clockwise to tighten). Tighten the
fi xing bolt or nut with the box wrench.
○ If your unit is of a nut securing type and equipped
with a cotter pin, the blade must be retained with a
new cotter pin (13) each time installed.
13
Fig. 9
CAUTION
● Before operation, make sure the blade has
been properly installed.
● If your unit is equipped with protection cover
under a cutting blade, check it for wear or
cracks before operation. If any damage or
wear is found, replace it, as it is an article of
consumption.
Installation of
NOTE
For installation see your BRAIN owner’s manual,
provided with the BRAIN cutting head.
the BRAIN cutting head
WARNING
For HITACHI BRAIN heads or HITACHI alloy
head, use only fl exible, non-metallic line
recommended by the manufacturer. Never
use wire or wire ropes. They can break off
and become a dangerous projectile.
NOTE
When using HITACHI alloy head (CH-100), initial
cutting line length should be about 6-11/16˝
(17 cm) each. (Fig. 10)
6-11/16˝ (17 cm)
OPERATING PROCEDURES
Engine oil
○ Always use the specifi ed engine oil (multigrade oil
of classifi cation SAE 10W-30). Insuffi cient engine
oil or using engine oil other than the specifi ed type
may cause breakdown of the unit.
Filling up with engine oil
○ Place the unit horizontally on a clean, fl at surface.
○ Remove the oil cap and check whether the engine
oil comes up to the mouth of the oil tank opening.
(Fig. 11)
6-11/16˝ (17 cm)
CH-100
Fig. 10
8
English
1.
Set ignition switch (14) to ON position. (Fig. 12)
14
Fig. 11
○ If the oil level is low or when using the unit for the
fi rst time, fi ll the oil tank with engine oil up to the
mouth of the oil tank opening.
○ If the engine oil is conspicuously dirty or discolored,
change the oil.
○ Tighten the oil cap securely after fueling.
○ When using the unit for the fi rst time, change
the engine oil after running the engine for
approximately 10 hours. Subsequently, change
the oil after every 50 hours of operation.
CAUTION
● To avoid the risk of burn injury, allow the
engine to cool thoroughly before changing
the engine oil.
● To prevent breakdown, ensure that no sand
or dirt gets into the oil tank while refueling.
Fuel
○ Always use branded 89 octane unleaded
gasoline.
○ Do not use a mixture of gasoline and engine oil as
this may lead to starter failure or power reduction.
Fueling
WARNING
● Always shut off the engine before refueling.
● Slowly open the fuel tank, when fi lling up
with fuel, so that possible overpressure
disappears.
● Tighten the fuel cap carefully, after fueling.
● Always move the trimmer at least 10 ft. (3 m)
from the fueling area before starting.
Before fueling, clean the tank cap area carefully, to
ensure that no dirt falls into the tank.
Starting (Fig. 12)
CAUTION
Before starting, make sure the cutting
attachment does not touch anything.
Fig. 12
* Push priming bulb (15) several times so that fuel
fl ows through return pipe. (If so equipped) (Fig.
13)
15
16
Fig. 13
2. Set choke lever to CLOSED position (16). (Fig.
13)
3. Pull recoil starter briskly, taking care to keep the
handle in your grasp and not allowing it to snap
back. (Fig. 14)
Fig. 14
4. When you hear the engine want to start, return
choke lever to RUN position (open). Then pull
recoil starter briskly again.
NOTE
If engine does not start, repeat procedures from 2
to 4.
5. After starting engine, allow the engine about 2–3
minutes to warm up before subjecting it to any
load.
9
English
Cutting (Fig. 15, 16, 17)
Fig. 15
Fig. 16
50 ft
(15 m)
Fig. 17
○ When cutting, operate engine at over 6,500/min.
Extended time of use at low rpm may wear out the
clutch prematurely.
○ Cut grass from right to left.
○ Blade thrust may occur when the spinning blade
contacts a solid object in the critical area.
A dangerous reaction may occur causing the
entire unit and operator to be thrust violently. This
reaction is called blade thrust. As a result, the
operator may lose control of the unit which may
cause serious or fatal injury. Blade thrust is more
likely to occur in areas where it is diffi cult to see
the material to be cut.
○ Wear the harness as shown in the fi gure (if so
equipped). The blade turns counterclockwise,
therefore, be advised to operate the unit from right
10
to left for effi cient cutting. Keep onlookers out of
working area at least 50 ft. (15 m).
NOTE
Press the quick release button or pull emergency
release fl ap (If so equipped) in the event of
emergency.
WARNING
If cutting attachment should strike against
stones or other debris, stop the engine and
make sure that the attachment and related
parts are undamaged. When grass or vines
wrap around attachment, stop engine and
attachment and remove them.
Stopping (Fig. 18)
○ Decrease engine speed and run at an idle for a
few minutes, then turn off ignition switch (17).
17
Fig. 18
WARNING
A cutting attachment can injure while it
continues to spin after the engine is stopped
or power control is released. When the unit is
turned off , make sure the cutting attachment
has stopped before the unit is set down.
Semi-auto cutting head
Adjusting line length
○ Set the engine speed as low as possible and tap
the head on the ground. The nylon line will be
drawn out about 3 cm with each tap. (Fig. 19)
Also, you can extend the nylon line by hand but
the engine must be completely stopped. (Fig. 20)
○ Adjust the nylon line to the proper length of 11–14
cm before each operation.
Fig. 19
English
the correct idle speed when the engine runs smoothly
in all positions well below the rpm when the cutting
attachment starts to rotate.
If the cutting attachment still rotates after idle speed
adjustment, contact HITACHI dealer.
NOTE
Standard idle rpm is 3,000/min.
Fig. 20
MAINTENANCE
MAINTENANCE, REPLACEMENT OR REPAIR
OF THE EMISSION CONTROL DEVICES AND
SYSTEMS MAY BE PERFORMED BY ANY NONROAD ENGINE REPAIR ESTABLISHMENT OR
INDIVIDUAL.
Carburetor adjustment (Fig. 21)
T
Fig. 21
WARNING
● The cutting attachment may be spinning
during carburetor adjustments.
● Never start the engine without the complete
fan case and tube assembled! Otherwise the
clutch can come loose and cause personal
injuries.
In the carburetor, fuel is mixed with air. When the
engine is test run at the factory, the carburetor is
basically adjusted. A further adjustment may be
required, according to climate and altitude. The
carburetor has one adjustment possibility:
T = Idle speed adjustment screw.
Idle speed adjustment (T)
Check that the air fi lter is clean. When the idle speed
is correct, the cutting attachment will not rotate. If
adjustment is required, close (clockwise) the T-screw,
with the engine running, until the cutting attachment
starts to rotate. Open (counter-clockwise) the screw
until the cutting attachment stops. You have reached
WARNING
When the engine is idling the cutting
attachment must under no circumstances
rotate.
NOTE
Some models sold areas with strict exhaust
emission regulation do not have high and low
speed carburetor adjustments. Such adjustments
may allow the engine to be operated outside of
their emission compliance limits. For these models,
the only carburetor adjustment is idle speed.
Changing the engine oil
Dirty engine oil will considerably reduce the service
life of the engine. Check and change the engine oil
regularly.
CAUTION
● To avoid risk of burn injury, allow the engine
to cool thoroughly before changing the
engine oil.
● To prevent breakdown, ensure that no sand
or dirt gets into the tank while refueling.
When to change the oil: When fi rst using the unit, after
approximately 10 hours of operation or after 1 month,
whichever occurs earlier; subsequently, after every
50 hours of operation or every 6 months, whichever
occurs earlier.
Specifi ed engine oil: Multigrade oil of classifi cation SAE
10W-30
Engine oil capacity: 4.88 cu. in. (80 ml)
1. Turn off the ignition switch.
2. Check that the fuel cap is securely tightened.
3. Remove the oil cap, tilt the unit so that the oil tank
opening is on the underside and drain the engine
oil into a container. (Fig. 22)
11
English
Fig. 22
4. When all the engine oil has been drained, place
the unit horizontally on a clean, fl at surface.
5. Fill the oil tank with engine oil up to the mouth of
the oil tank opening. (Fig. 11)
6. Tighten the oil cap securely by hand.
NOTE
○ Do not dispose of waste engine oil with garbage
or into the ground.
Dispose of the oil according to the specifi ed
method in your area.
If you are unsure, contact the retailer where the oil
was purchased.
○ Fill the oil tank with the specifi ed amount of engine
oil.
Too much or too little engine oil may result in
engine breakdown.
○ Engine oil deteriorates naturally even if unused.
Change the engine oil regularly.
Air fi lter (Fig. 23)
Cleaning the air fi lter
Remove the air fi lter cover and the fi lter (18). Rinse it
in warm soap suds. Check that the fi lter is dry before
reassembly. An air fi lter that has been used for some
time cannot be cleaned completely. Therefore, it must
regularly be replaced with a new one. A damaged
fi lter must always be replaced.
Fuel fi lter (Fig. 24)
Drain all fuel from fuel tank and pull fuel fi lter line from
tank. Pull fi lter element out of holder assembly and
rinse element in warm water with detergent.
Rinse thoroughly until all traces of detergent are
eliminated. Squeeze, do not wring, away excess
water and allow element to air dry.
Fig. 24
NOTE
If element is hard due to excessive dirt buildup,
replace it.
Spark plug (Fig. 25)
18
Fig. 23
The air fi lter must be cleaned from dust and dirt in
order to avoid:
○ Carburetor malfunctions.
○ Starting problems.
○ Engine power reduction.
○ Unnecessary wear on the engine parts.
○ Abnormal fuel consumption.
Clean the air fi lter daily or more often if working in
exceptionally dusty areas.
12
.024˝
(0.6 mm)
Fig. 25
The spark plug condition is infl uenced by:
○ An incorrect carburetor setting.
○ A dirty air fi lter.
○ Hard running conditions (such as cold weather).
○ Too much engine oil
These factors cause deposits on the spark plug
electrodes, which may result in malfunction and
starting diffi culties. If the engine is low on power,
diffi cult to start or runs poorly at idling speed, always
check the spark plug fi rst. If the spark plug is dirty,
English
clean it and check the electrode gap. Readjust if
necessary. The correct gap is .024˝ (0.6 mm). The
spark plug should be replaced after about 100
operation hours or earlier if the electrodes are badly
eroded.
NOTE
In some areas, local law requires using a resistor
spark plug to suppress ignition signals. If this
machine was originally equipped with resistor
spark plug, use same type of spark plug for
replacement.
Semi-auto cutting head
Nylon line replacement
(1) Remove the case (19) by fi rmly pushing inward
the locking tabs with your thumbs as shown in Fig.
26.
19
Fig. 26
(2) After removing the case, take out the reel and
discard the remaining line.
(3) Fold the new nylon line unevenly in half as shown
in picture.
Hook the U-shaped end of the nylon line into the
groove (20) on the center partition of the reel.
Wind both halves of the line on the reel in the
same direction, keeping each half of the line on its
own side of the partition. (Fig. 27)
4˝ (10 cm)
4˝ (10 cm)
21
Fig. 28
(5) Insert both loose ends of the line through the cord
guide (22) when placing the reel in the case. (Fig.
29)
21
22
Fig. 29
NOTE
When placing a reel in the case, try to line up the
stopper holes (21) with the cord guide (22) for
easier line release later.
4˝ (10 cm)
20
Fig. 27
(4) Push each line into the stopper holes (21), leaving
the loose ends approx. 4˝ (10 cm) in length.
(Fig. 28)
(6) Place the cover over the case so that the cap
locking tabs on the case meet the long holes on
the cover. Then push the case securely until it
clicks into place. (Fig. 30)
Fig. 30
13
English
(7) The initial cutting line length should be approx.
4-11/32˝–5-1/2˝ (11-14 cm) and should be equal
on both sides. (Fig. 31)
4-11/32˝–5-1/2˝
(11-14 cm)
Blade (Fig. 32)
23
4-11/32˝–5-1/2˝
(11-14 cm)
Fig. 31
24
R1 – 1.5 mm
1.9 – 2.2 mm
Fig. 32
WARNING
Wear protective gloves when handling or
performing maintenance on the blade.
○ Use a sharp blade. A dull blade is more likely to
snag and thrust. Replace the fastening nut if it is
damaged and hard to tighten.
○ When replacing blade, purchase one
recommended by HITACHI, with a 1˝ (25.4 mm)
fi tting hole.
○ When installing saw blade (24), always face the
stamped side up. In the case of a 4-tooth blade
(23), it can be used on either side.
○ Use correct blade for the type of work.
○ When replacing blade, use appropriate tools.
○ When cutting edges become dull, re-sharpen or
fi le as shown in fi gure. Incorrect sharpening may
cause excessive vibration.
○ Discard blades that are bent, warped, cracked,
broken or damaged in any way.
NOTE
When sharpening blades it is important to maintain
an original shape of radius at the base of the tooth
to avoid cracking.
Maintenance schedule
Below you will fi nd some general maintenance
instructions. For further information please contact
your HITACHI dealer.
Daily maintenance
○ Clean the exterior of the unit.
○ Check that the harness is undamaged.
○ Check the blade guard for damage or cracks.
Change the guard in case of impacts or cracks.
○ Check that the cutting attachment is properly
centred, sharp, and without cracks. An off - centred
cutting attachment induces heavy vibrations that
may damage the unit.
○ Check that the cutting attachment nut is suffi ciently
tightened.
○ Make sure that the blade transport guard is
undamaged and that it can be securely fi tted.
○ Check that nuts and screws are suffi ciently
tightened.
○ Check the volume and condition of the engine oil.
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 .024˝ (0.6 mm), or change the
spark plug.
○ Clean the air fi lter.
Monthly maintenance
○ Rinse the fuel tank with gasoline.
○ Clean the exterior of the carburetor and the space
around it.
○ Clean the fan and the space around it.
IMPORTANT NOTICE
THIS INFORMATION IS FOR THE US AND
CANADIAN MARKETS ONLY.
○ Never use a metal blade on any brush cutter
without barrier bar or bicycle handle confi guration
and safety strap and a safety guard specifi cally
designed and approved for blade use.
○ Use only attachments or accessories designed for
your unit and off ered by HITACHI. Although some
unauthorized parts may be adaptable, their use
may be extremely dangerous and could cause
serious injury or death.
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HITACHI off ers a complete line of trimmer/brush
cutter accessories to accomplish any job while
ensuring safe operation.
The following models are sold as grass trimmers
capable of being converted to blade-capable brush
cutters: CG25EUS (L)
Blade adapter kits for this model can be purchased
at your local HITACHI dealer. These kits contain
a safety barrier bar and shoulder strap as well as
the necessary blade guard and blade mounting
hardware.
WARNING
The blade conversion kit MUST be used when
operating these models with steel blades.
Never install a steel blade without the use of
the blade-securing cotter pins included in the
kit. Proper installation of all blade-mounting
components is required when converting
a grass trimmer to a blade-capable brush
cutter. Consult your Tanaka dealer if you are
uncertain about any aspect of blade use on
your Tanaka unit.
Bicycle Style Handle Kit #748502
This kit converts model CG25EUS (L) from “D” style
front handles to dual handled style brush cutters.
English
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