Maintenance And Inspection - Hitachi C 18DGL Manual De Instrucciones

MAINTENANCE AND INSPECTION

WARNING
Be sure to turn off the switch and pull out the battery before doing any inspection or maintenance.
1. Inspecting the saw blade
Continued use of a dull or damaged blade will
result in reduced cutting efficiency and may cause
overloading of the motor. Replace the blade with a
new one as soon as excessive abrasion is noted.
CAUTION
If a dull saw blade is used, reactive force is
increased during cutting operation. Avoid the
use of the dull saw blade without repair.
2. Check the Screws
Loose screws are dangerous. Regularly inspect them
and make sure they are tight.
CAUTION
Using this power tool with loosen, screws is
extremely dangerous.
3. Motor unit maintenance
The motor winding is an important part of this tool.
Avoid damaging and be careful to avoid contact with
cleaning oil or water.
After 50 hours of use, clean the motor by blowing into
the ventilation holes of the motor housing with dry air
from an air gun or other tool (Fig. 17).
Dust or particle accumulation in the motor can result
in damage.
4. Inspecting and maintaining the lower guard
Always make sure that the lower guard moves
smoothly.
In the event of any malfunction, immediately repair
the lower guard.
For cleaning and maintenance, use an air gun or
other tool to blow clean the space between the lower
guard and gear cover as well as the rotation part of
the lower guard with dry air (Fig. 17).
Doing so is eff ective for the emission of chips or other
particles.
Accumulation of chips or other particles around the
lower guard may result in malfunction or damage.
WARNING
To prevent dust inhalation or eye irritation, wear
protective safety goggles and a dust mask when
using an air gun or other tool to clean the lower
guard, ventilation holes or other parts of the
product.
Ensure smooth
movement of
lower guard
Space between lower
guard and gear cover
Housing vent
5. Clean inside the saw cover
Periodically inspect and clean the saw cover to
ensure that there is no accumulation of chips or other
particles.
6. Adjusting the base and saw blade to maintain
perpendicularity
The angle between the base and the saw blade
has been adjusted to 90°, however should this
perpendicularity be lost for some reason, adjust in
the following manner.
(1) Turn the base face up (Fig. 18) and loosen the wing-
nut.
Wing-nut
(2) Apply a square to the base and the saw blade
and, turning the adjusting screw with a phillips-
screwdriver, shift the position of the base to produce
the desired right angle.
7. Check for dust
Dust may be removed with a clean rag or a cloth
dampened with soapy water.
Do not use bleach, chlorine, gasoline or thinner, for
they may damage the plastics.
English
Rotation part of
the lower guard
Air gun
Fig. 17
Square
Adjusting
screw
Fig. 18
17