Hitachi C 10RA2 - Page 36

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2
Poor cut surface
Parallelism a =
0.02/63
a) Large run out of saw
blade (Large run out
results in poor cut
grain.)
b) Poor parallelism of
washer (A) due to
dents or flaws
c) Cutting speed too fast.
d) During cutting, the
material becomes
rough because of its
curvature, bend, etc.
a) Cutting speed too fast.
b) Thin extension cord
c) Excessive force is
applied because of a
dull saw blade.
d) Wrong selection of
saw blade
e) During cutting, the
material binds the saw
blade because of a
deformation such as
curvature and bend.
(Dummy disc)
Washer (A)
(Fig. 34)
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• Same as item No. 1, b).
• Remove dents or flaws on
Washer (A) [98], or replace.
• Slow down the cutting speed.
• Eliminate the curvature, bend,
etc. in the material by planing.
• Slow down the cutting speed.
The usable extension cords are
as follows:
• Shapen the Saw Blade [704].
• Replace the Saw Blade [704].
• Use a genuine Hitachi saw
blade.
• The higher the number of teeth
of a saw blade, the more
cutting resistance increases.
Where a saw blade with many
teeth is used, cut slowly.
• Eliminate the curvature, bend,
etc. in the material by planing.
Fig. 34
3
The saw blade locks
up.
Ampere rating 15
Ext. cord length Wire gauge size
25 ft. 14 A.W.G.
(7.5 m) (2.0 mm
2
)
50 ft. 12 A.W.G.
(15 m) (3.5 mm
2
)
Washer (A)
a
a
Factory rated
No Problem Possible cause
value
Remedy
(Note) Unit:
mm
/mm