Hitachi CG 25EUS L, Safety Instructions And Instruction Manual

Page: 14 / 48

(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)
4-11/32 ˝ –5-1/2 ˝
(11-14 cm)
Fig. 31
Blade (Fig. 32)
23
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 o ff - centred
cutting attachment induces heavy vibrations that
may damage the unit.
○ Check that the cutting attachment nut is su ffi 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 su ffi 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 con fi guration
and safety strap and a safety guard speci fi cally
designed and approved for blade use.
○ Use only attachments or accessories designed for
your unit and o ff ered by HITACHI. Although some
unauthorized parts may be adaptable, their use
may be extremely dangerous and could cause
serious injury or death.
14
English
000Book̲CG25EUS̲US.indb 14 000Book̲CG25EUS̲US.indb 14 2009/12/26 9:20:55 2009/12/26 9:20:55