Advertisement
Item
Phenomenon
Inaccurate cutting.
(Unable to obtain accurate
perpendicularity of cut
surface.)
(Mitered joints cannot be
accurately aligned.)
2.
Cutting operation results in
rough cutting surfaces
A = 0.02/60
Fig. 5
Fig. 6: Left Bevel Cutting
Fig. 7: Right Bevel Cutting
Possible Cause (s)
J. The workpiece is not pro-
perly secured, and moves dur-
ing the cutting operation.
K. Curved or rough surface of
the Workpiece causes
workpiece movement during
cutting operation.
A. Excessive deflection of the
Saw Blade.
(Inherent Saw Blade deflection
will cause rough surfaces.)
B. Incorrect selection of Saw
Blade, or dull Saw Blade.
(While a regular TCT Saw
Blade provides faster cutting
speed, it also produces
rougher surfaces than a TCT
Saw Blade for wood or
aluminum.)
C. Improper perpendicularity
between Saw Blade and Turn
Table [87] causes Saw Blade
to cut into workpiece at slightly
inclined angle, and cause
rough cutting surface.
D. Washers (A) and (B) not
parallel because of surface
defects or other damage.
E. Improper perpendicularity
between Vise (B) and the
Base Ass'y [103] causes
improper support of the
workpiece.
F. Surface of Vise (B) uneven
and causes improper support
of the workpiece.
G. Excessively fast cutting
operation speed.
H. When the Saw Blade cuts
against the natural grain of the
wood workpiece, inferior
cutting surfaces are obtained.
--- 10 ---
Standard
Countermeasure (s)
----
Secure the workpiece with Vise
(A), and check cutting accuracy.
----
Plane the surface of the work-
piece to remove defects, and
recheck the cutting accuracy.
0.26/ 370
Replace the Saw Blade. (To ob-
tain very fine cutting surfaces,
Hitachi's TCT Saw Blade for
wood or aluminum (Code No.
959024) is recommended.)
•
----
Replace the regular TCT Saw
Blade with a TCT Saw Blade for
wood or aluminum (code No.
959024).
•
Resharpen the Saw Blade.
•
0.2/190
Adjust M12 Nut [93] and M12
(Fig. 1)
Lock Nut [92] to eliminate gap
and vibration between Hinge
[119] and Gear Case [53].
•
Replace Hinge [119]
(If damaged or deformed).
•
Replace Gear Case [53]
(If damaged or deformed).
•
Replace Turn Table [87]
(If damaged or deformed).
0.02/60
Remove surface defects from or
(Fig. 5)
replace Washer (A) [28] and/or
Washer (B ) [29].
Within
Adjust or replace Vise (B) [82].
0.1/80
(Fig. 2)
Within 0.1
Replace Vise (B) [82].
(Fig. 3)
----
Reduce cutting operation speed.
(Appropriate cutting time for a
100 mm (4") workpiece is 10 --- 15
seconds.)
----
Cut with the natural grain of the
wood workpiece.
Fig. 6
Fig. 7
... With Grain (Smooth cutting
surface)
... Against Grain (Cutting surface
inferior to with grain.
Workpiece
Workpiece
Advertisement
