Hitachi Koki CG 31EBSP Mode D'emploi page 15

Cylinder (Engine cooling) (Fig. 34)
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. 35)
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.
Fig. 33
Fig. 34
Blade
WARNING
Wear protective gloves when handling or
performing maintenance on the blade. (Fig.
36)
○ 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
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 important to maintain
an original shape of radius at the base of the
tooth to avoid cracking.
English
Fig. 35
Fig. 36
blade, purchase one
15