--- 47 ---
• Same as the Item 1- b .
• Replace Washers (A) [251] and
(B) [249].
• Same as the Item 1- a .
• Same as the Item 1- e .
• Correct warp or bend with
planer.
• Recheck the items a and b .
a Large deflection of the
saw blade (It causes
rough cut surface.)
b Each surface
parallelism of washers
(A) and (B) is
inaccurate due to
surface defects such
as impact marks and
scratches.
c Inaccurate
squareness between
the turn table and the
saw blade causes the
saw blade to cut at an
improper angle and
make cutting marks.
d Loose fitting of
swiveling portion of
the hinge and the gear
case or sluggish
movement.
e Cutting operation
becomes sluggish
because workpiece is
warped or bent.
f Excessive vibration
2
Rough cut surface
Parallelism A
0.2/280
(Dummy disc)
(Fig. 69)
0.2/100
(Fig. 66)
-----
-----
-----
Item
Phenomenon
Cause
Factory
standard
Inspection, repair or
adjustment
Fig. 69
a Excessively fast
cutting speed
b Core diameter of
extension cord is too
small.
c Excessive cutting force
is applied due to dull
saw blade.
d Incorrect saw blade is
used.
e The saw blade binds in
workpiece during
cutting because
workpiece is warped
or bent.
3 Saw blade is locked. -----
-----
-----
-----
-----
• Reduce cutting speed.
• Use a thicker and shorter
extension cord.
• Replace the saw blade.
• Use a suitable Hitachi-supplied
saw blade.
• If the saw blade has a large
number of teeth, the cutting
resistance will be increased.
When using a saw blade with a
large number of teeth, reduce
the cutting speed.
• Correct workpiece deformation
with a planer.
To Next Page
Loading...
Need help?
General
