Hitachi P 20SB Handling Instructions Manual page 7

3. Adjustment of carbide blade height:
CAUTION
If the carbide blade's heights are inaccurate after
above procedures have been completed, carry out
the procedures described below.
(1) As shown in Fig. 4, use the box wrench to loosen
the three bolts used to retain the carbide blade, and
remove the blade holder.
(2) As shown in Fig. 20, after removing the carbide
blade, slide set plate (B) in the direction indicated
by the arrow to disassemble set plate (B).
(3) Loosen the 2 screws holding on the carbide blade
and set plate (A), set plate (B).
(4) As shown in Fig. 21, 22, press the turned surface
of set plate (A) to the wall surface (B) while adjusting
the carbide blade edge to the wall surface a of the
set gauge. Then, tighten them with the 2 screws.
Set plate (B)
Set plate (A)
Turned surface
Set plate (B)
Fig. 20
Machine screw
Fig. 21
Carbide blade
(Double edged
blade type)
Wall surface a
Set gauge
Wall surface b
Fig. 22
(5) As shown in Fig. 23, 24, insert a turned portion of
set plate (A) attached to set plate (B) into a groove
on the flat portion of the cutter block.
Groove
(6) As shown in Fig. 25, place the blade holder on the
completed assembly and fasten it with the three
bolts. Ensure that the bolts are securely tightened.
Follow the same procedures for the opposite side
carbide blade.
Bolt
Flat portion of the
cutter block
Set plate (A)
Fig. 23
Fig. 24
Blade holder
Fig. 25
6