Hitachi CG40EAF - Инструкция по эксплуатации - Страница 13

12

English

These factors cause deposits on the spark plug electrodes, which 
may result in malfunction and star ting di

ffi

  culties. If the engine 

is  low  on  power,  di

ffi

  cult  to  star t  or  runs  poorly  at  idling  speed, 

always check the spark plug 

fi

 rst. If the spark plug is dir ty, clean it 

and check the electrode gap. Re-adjust if necessar y. 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.

Angle

transmission

 (

Fig.

30

)

Check angle transmission or angle gear for grease level about ever y 
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

WARNING

  Wear protective gloves when handling or per forming 

maintenance on the blade. (

Fig.

31

)

○

  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, always face the stamped side up. 

In the case of a 3 tooth blade, 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  impor tant  to  maintain  an  original 
shape of radius at the base of the tooth to avoid cracking.

Nylon

head

Nylon line replacement

○

  Remove the cutting body cap by pushing inward the locking 

tabs on  the side of the nylon head (

Fig.

32

). Take out the spool 

(

Fig.

33

), hook the new nylon line into the hole of the spool, then 

wind it around the spool (

Fig.

34

).

When the nylon line has been wound around the spool, 
temporarily fasten it in the opening of the spool at about 10 cm 
from the end. (

Fig.

35

) Then thread the nylon line through the 

hole on the side of the nylon head and place the cutting body 
cap in reverse order of the cap removal (

Fig.

36

). Pull the right and 

left nylon lines until they are secured about 15 - 16 cm from the 
end. (

Fig.

37

)

NOTE

○

  The nylon head is designed for nylon lines with an outer 

diameter of 2.5 mm. Do not use nylon lines with a di

ff

 erent outer 

diameter.

○

  Make sure that the right and left nylon lines are of equal length 

since vibrations will other wise increase.

Flexible

shaft

Lubricate 

fl

 exible  shaft  from  clutch  housing  side  by  removing  it 

ever y 20 hours of use.

Maintenance

schedule

Below you will 

fi

 nd some general maintenance instructions. For 

fur ther 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 o

ff

 -centre cutting attachment induces 

heav y vibrations that may damage the unit.

○

  Check that the cutting attachment nut is su

ffi

  ciently tightened.

○

  Make sure that the blade transpor t guard is undamaged and 

that it can be securely 

fi

 tted.

○

  Check that nuts and screws are su

ffi

  ciently tightened.

Weekly

maintenance

○

  Check the star ter, 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.

○

  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.

000Book̲CG40EAF̲EE.indb   12

000Book̲CG40EAF̲EE.indb   12

2010/04/19   18:51:41

2010/04/19   18:51:41