Repair Guide - Hitachi C 10FM Technical Data And Service Manual

11. REPAIR GUIDE

Item Phenomenon
Inaccurate cutting
1
Inaccurate
• • •
squareness of cut
surface
Cut surfaces do not
• • •
fit together properly.
Saw blade
Fence
Table
Fig. 17
Squareness
0.4/100
Saw blade
(1/64"/3-15/16")
Fig. 18
Within 0.15 (0.06")
Within 0.15 (0.06") or less
Fig. 19
Fence
0.4/100
(1/64"/3-15/16")
Squareness
Fig. 20
Cause (s)
a Inaccurate
squareness between
the table and the saw
blade causes the saw
blade to cut into
workpiece at an angle.
b Excessive deflection
Squareness
of the saw blade
0.4/100
(Excessive vibration)
(1/64"/3-15/16")
c Inaccurate
squareness between
Fence
the fence and the saw
blade
d Inaccurate surface
flatness of the fence
causes workpiece to
move irregularly,
causing poor
squareness of cut
surface.
e Inaccurate surface
flatness of the table
Fence
f Inaccurate
squareness between
the fence and the
table and/or the base
causes the workpiece
to tilt at an angle and
prevent accurate
cutting.
Factory
standard
0.4/100
(1/64"/3-15/16")
(Dummy disc)
(Fig. 17)
0.38/220
(0.015"/8-21/32")
(Dummy disc)
0.4/100
(1/64"/3-15/16")
(Fig. 18)
Within 0.15
(0.06")
(Fig. 19)
Within 0.1
(0.004")
0.4/100
(1/64"/3-15/16")
(Fig. 20)
--- 20 ---
Unit: mm
Inspection • Repair •
Adjustment
• Replace the Upper Arm
[86], Table [64] and/or the
Support [39]. (If deformed.)
• Replace the TCT Saw Blade
[701].
• Check for surface defects on
the Arbor Collar [52], and
repair with a file as
necessary.
• Replace the Arbor Collar
[52] as necessary.
• Loosen the Hex. Socket Hd.
Bolt M8 x 45 [54] and adjust
as necessary.
• Replace the Fence [55] as
necessary.
• Replace the Fence [55] as
necessary.
• Replace the Table [64].
• Replace the Fence [55] as
necessary.