Bedienungsanleitung Hitachi CG27EJ-SLD (Seite 12 von 92) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Schwedisch, Norwegisch, Finnisch)

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English

For models that equipped with low and high speed adjustments;

carburetors are preset at the factory. Minor adjustments may

optimize performance based on climate, altitude, etc. Never turn the

adjustment screws in increments greater than 90 degrees, as engine

damage can result from incorrect adjustment, if you are not familiar

with type of adjustment-assistance Hitachi dealer.

WARNING

When the engine is idling the cutting attachment must under no

circumstances rotate.

Air ﬁ lter (Fig. 31)

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.

Cleaning the air ﬁ lter

Remove the air ﬁ lter cover and the ﬁ lter (32). 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. 32)

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.

NOTE

If element is hard due to excessive dirt buildup, replace it.

Spark plug (Fig. 33)

The spark plug condition is inﬂ uenced by:

○ An incorrect carburetor setting

○ Wrong fuel mixture (too much oil in the gasoline)

○ A dirty air ﬁ lter

○ Hard running conditions (such as cold weather)

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, clean it and check

the electrode gap. Re-adjust if necessary. The correct gap is 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.

Muﬄ er (Fig. 34)

Remove the muﬄ er and clean out any excess carbon from the

exhaust port or muﬄ er inlet every 100 hours of operation.

Cylinder (Engine cooling) (Fig. 35)

The engine is air cooled, and air must circulate freely around engine

and over cooling ﬁ ns on cylinder head to prevent overheating.

Every 100 operating hours, or once a year (more often if conditions

require), clean ﬁ ns and external surfaces of engine of dust, dirt and

oil deposits which can contribute to improper cooling.

NOTE

Do not operate engine with engine shroud or muﬄ er guard

removed as this will cause overheating and engine damage.

Angle transmission (Fig. 36)

Check angle transmission or angle gear for grease level about every

50 hours of operation by removing the grease ﬁ ller plug on the side

of angle transmission.

If no grease can be seen on the ﬂ anks of the gears, ﬁ ll the

transmission with quality lithium based multipurpose grease up to

3/4. Do not completely ﬁ ll the transmission.

Blade (Fig. 37)

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 25.4 mm (one inch) ﬁ tting hole.

○ When installing a saw blade (34), always face the stamped side

up. In the case of a 4 tooth blade (33), it can be used on either

side.

○ Use the correct blade for the type of work.

○ When replacing blades, use appropriate tools.

○ When cutting edges become dull, re-sharpen or ﬁ le as shown

in the illustration. Incorrect sharpening may cause excessive

vibration.

○ Discard blades that are bent, warped, cracked, broken or

damaged in any way.

NOTE

When sharpening blade 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 -centre 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.

Weekly maintenance

○ Check the starter, especially the cord and return spring.

○ Clean the exterior of the spark plug.

○ Remove it and check the electrode gap. Adjust it to 0.6 mm, or

change the spark plug.

○ Clean the cooling ﬁ ns on the cylinder and check that the air

intake at the starter is not clogged.

○ Check that the angle gear is ﬁ lled with grease up to 3/4.

○ 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.

000Book_CG27EJ(S)_WE_NE.indb 12000Book_CG27EJ(S)_WE_NE.indb 12 2012/06/21 12:18:032012/06/21 12:18:03

Hitachi CG27EJ-SLD Seite 12

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