Hitachi P 20SB Handling Instructions Manual page 6

(4) Finally, retighten the machine screw to securely
fasten the cutter blade and the back metal, thereby
completing the blade height adjustment procedure.
(5) Holding the set gauge as shown in Fig. 14, push
upward on the back metal and remove it from the
set gauge.
(6) The cutter blade is now ready to be mounted on
the planer as described in the section on cutter
blade assembly.
CARBIDE BLADE ASSEMBLY AND DISAS-
SEMBLY AND ADJUSTMENT OF CUTTER
BLADE HEIGHT (FOR DOUBLE EDGED BLADE
TYPE)
1. Carbide blade disassembly:
(1) As shown in Fig. 15, loosen the blade holder with
the attached box wrench.
Blade holder
(2) As shown in Fig. 16, remove the carbide blade by
sliding it with the attached box wrench.
5
Push up the back
metal from beneath
Fig. 14
Box wrench
Fig. 15
Carbide blade (Double
edged blade type)
Fig. 16
CAUTION
Be careful not to injure your hands.
2. Carbide blade assembly:
CAUTION
Prior to assembly, thoroughly wipe off all swarf
accumulated on the carbide blade.
(1) As shown in Fig. 17, lift set plate (B) and insert the
new carbide blade between cutter block and set
plate (B).
(2) As shown in Fig. 18, mount the new carbide blade
by sliding it on the set plate (B) so that the blade
tip projects by 1mm from the end of the cutter
block.
(3) As shown in Fig. 19, fix the bolts at the blade holder
after blade replacement has been completed.
(4) Turn the cutter block over, and set the other side
in the same manner.
Carbide blade (Double
edged blade type)
Set plate (B)
Fig. 17
Fig. 18
Fig. 19