Hitachi CG-GT Manual Del Propietário página 10

5. Maintenance
Angle transmission (Fig.3-1)
Check angle transmission or angle gear for
grease level about every 50 hours of operation
by removing the grease filler plug on the side of
angle transmission.
If no grease can be seen on the flanks of the
gears, fill the transmission with quality lithium
based multipurpose grease up to 3/4.
Do not completely fill the transmission.
1
Fig. 3-1
Blade (Fig. 3-2)
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 25.4mm
(one inch) fitting hole.
When installing saw blade (2), always face the
stamped side up. In the case of a 4 tooth blade
(1), 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 file as shown in figure. 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 find some general maintenance
instructions. For further information please
contact HITACHI dealer.
R1-1.5 mm
2
1.9-2.2 mm
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
sufficiently tightened.
Make sure that the blade transport guard is
undamaged and that it can be securely fitted.
Check that nuts and screws are sufficiently
tightened.
Weekly maintenance
Check that the angle gear is filled with grease
up to 3/4.
G
B
Fig. 3-2
GB-9