Repair Guide - Hitachi C-10FCB Technical Data And Service Manualice Manual

12. REPAIR GUIDE

Item Phenomenon
Inaccurate cutting
1
Inaccurate
• • •
squareness of the
cut surface
Cut surfaces do not
• • •
fit together properly.
Saw blade
Fence
Squareness
0.15/100
Turn table
Fig. 25
Fence (B)
Squareness
0.15/100
Saw blade
Fig. 26
Fence (B)
Fig. 27
Cause
a Inaccurate
squareness between
the turn table and the
saw blade causes the
saw blade to cut into
the workpiece at an
angle.
b Excessive deflection
of the saw blade
(Excessive vibration)
c Inaccurate
squareness between
the fence and the saw
blade
Fence (A)
d Inaccurate surface
flatness of the fence
causes workpiece to
move irregularly,
causing poor
Squareness
squareness of cut
0.15/100
surface.
e Inaccurate surface
flatness of the turn
table
0.1 or less
Fence (A)
0.1 or less
Factory
standard
0.15/100
(Dummy disc)
(Fig. 25)
0.2/245
(Dummy disc)
0.15/100
(Fig. 26)
0.1 or less
(Fig. 27)
0.1 or less
--- 23 ---
Unit: mm
Inspection, repair or
adjustment
• Adjust squareness with the
Nylock Bolt M8 x 25 [35].
• Replace the Hinge [7], Gear
Case [85] or the Turn Table
[38] (if deformed).
• Replace the TCT Saw Blade
255 mm [118].
• Check for surface defects on
Washer (A) [117] and
Washer (B) [120], and repair
with a file as necessary.
• Replace Washer (A) [117]
and Washer (B) [120].
• Loosen the Bolt (W/Washers)
M8 x 35 (Black) [30] and
adjust the squareness.
• Replace Fence (A) [46] or
Fence (B) [31].
• Loosen the Bolt (W/Washers)
M8 x 35 (Black) [30] and
adjust the squareness.
• Replace Fence (A) [46] or
Fence (B) [31].
• Replace the Turn Table [38].