Prior To Operation - Hitachi P 20 SB Handling Instructions Manual

PRIOR TO OPERATION

1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
2. Power switch
Ensure that the power switch is in the OFF position. If
the plug is connected to a receptacle while the power
switch is in the ON position, the power tool will start
operating immediately, which could cause a serious
accident.
3. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
4. Prepare a stable wooden workbench suitable for
planing operation. As a poorly balanced workbench
creates a hazard, ensure it is securely positioned on
firm, level ground.
PLANING PROCEDURES
1. Adjusting the cutter depth:
(1) Turn the knob in the direction indicated by the arrow
in Fig. 1 (clockwise), until the triangular mark is aligned
with the desired cutting depth on the scale. The scale
unit is graduated in millimeters.
(2) The cutting depth can be adjusted within a range of
0-1mm.
Knob
Scale
2. Surface cutting
Rough cutting should be accomplished at large cutting
depths and at a suitable speed so that shavings are
smoothly ejected from the machine. To ensure a
smoothly finished surface, finish cutting should be
accomplished at small cutting depth and at low
feeding speed.
3. Beginning and ending the cutting operation:
As shown in Fig. 2, place the front base of the planer
on the material and support the planer horizontally.
Turn ON the power switch, and slowly operate the
planer toward the leading edge of the material. Firmly
depress the front half of the planer at the first stage
of cutting, as shown in Fig. 3, depress the rear half of
the planer at the end of the cutting operation. The
planer must always be kept flat throughout the entire
cutting operation.
3
Mark
Fig. 1
Beginning of cutting
operation
End of cutting
operation
4. Precaution after finishing the planing operation:
When the planer is suspended with one hand after
finishing the planing operation, ensure that the cutting
blades (base) of the planer do not contact or come
too near your body. Failure to do so could result in
serious injury.
CARBIDE BLADE ASSEMBLY AND
DISASSEMBLY AND ADJUSTMENT OF CUTTER
BLADE HEIGHT (FOR DOUBLE EDGED BLADE
TYPE)
1. Carbide blade disassembly:
(1) As shown in Fig. 4, loosen the blade holder with the
attached box wrench.
Blade holder
Fig. 2
Fig. 3
Box wrench
Fig. 4