Sharpening The Resharpenable Blades; Maintenance And Inspection - Hitachi P 20DA Instrucciones De Manejo

English
(2) Place the blade holder on the completed assembly,
as shown in Fig. 25, and fasten it with the three
bolts. Ensure that the bolts are securely tightened.
(3) Turn the cutter block over, and set the opposite side
in the same manner.
3. Adjustment of blade height:
(1) Loosen the 2 screws holding on the blade and set
plate (A).
(2) Press the turned surface of set plate (A) to the wall
surface b while adjusting the blade edge to the wall
surface a of the set gauge. Then, tighten them with
the 2 screws. (Fig. 18, 26)

SHARPENING THE RESHARPENABLE BLADES

Use of the accessory Blade Sharpening Ass'y is recom-
mended for convenience.
1. Use of Blade Sharpening Ass'y
As shown in Fig. 27, two blades can be mounted
on the blade sharpening ass'y to ensure that the
blade tips are ground at uniform angles. During
grinding, adjust the position of the blades so that
their edges simultaneously contact the dressing
stone as shown in Fig. 28.
2. Blade sharpening intervals
Blade sharpening intervals depend on the type of
wood being cut and the cutting depth. However,
sharpening should generally be effected after each
500 meters of cutting operation.
3. Dressing Stone
When a water dressing stone is available, use it
after dipping it sufficiently in water since such a
dressing stone may be worn during grinding works,
flatten the upper surface of the dressing stone as
often as necessary.

MAINTENANCE AND INSPECTION

1. Inspecting the blades:
Continued use of dull or damaged blades will result
in reduced cutting efficiency and may cause over-
loading of the motor. Sharpen or replace the blades
as often as necessary.
2. Handling
CAUTION
The front base, rear base, and cutting depth control
knob are precisely machined to obtain specifically
high precision. If these parts are roughly handled
or subjected to heavy mechanical impact, it may
cause deteriorated precision and reduced cutting
performance. These parts must be handled with
particular care.
3. Inspecting the mounting screws:
Regularly inspect all mounting screws and ensure
that they are properly tightened. Should any of the
screws be loose, retighten them immediately. Fail-
ure to do so could result in serious hazard.
4. Maintenance of the motor
The motor unit winding is the very "heart" of the
power tool.
Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
5. Cleaning on the outside
When the planer is stained, wipe with a soft dry
cloth or a cloth moistened with soapy water. Do
9
not use chloric solvents, gasoline or paint thinner,
for they melt plastics.
6. Storage
Store the planer in a place in which the temperature
is less than 40°C and out of reach of children.
NOTE
Due to HITACHI's continuing program of research and
development, the specifications herein are subject to
change without prior notice.
IMPORTANT
Correct connection of the plug
The wires of the main lead are coloured in accordance
with the following code:
Blue: -- Neutral
Brown: -- Live
As the colours of the wires in the main lead of this tool
may not correspond with the coloured markings identify-
ing the terminals in your plug proceed as follows:
The wire coloured blue must be connected to the terminal
marked with the letter N or coloured black.
The wire coloured brown must be connected to the
terminal marked with the letter L or coloured red.
Neither core must be connected to the earth terminal.
NOTE
This requirement is provided according to BRITISH STAN-
DARD 2769: 1984.
Therefore, the letter code and colour code may not be
applicable to other markets except The United Kingdom.
Information concerning airborne noise and vibration
The measured values were determined according to
EN50144.
The typical A-weighted sound pressure level: 88dB (A).
The typical A-weighted sound power level: 101dB (A).
Wear ear protection.
The typical weighted root mean square acceleration
value does not exceed 2.5m/s
2
.