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Troubleshooting Guide - Hitachi C 8FSE Technical Data And Service Manual

Slide compound miter saw
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2. Troubleshooting guide

Item
Phenomenon
1
Inaccurate cutting
--- Inaccurate
squareness of the
cut surface
--- Cut surfaces do not
fit together properly.
Fig. 59
Fig. 60
Fig. 61
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
fence (A) and fence
(B) and the saw blade
(d) Surfaces of fence (A)
and fence (B) are not
accurately aligned,
causing workpiece to
deviate from proper
squareness.
(e) Inaccurate surface
flatness of the turn
table.
(f) Squareness between
the saw blade and the
turn table is changed
when sliding.
-43-
Factory
Inspection, repair or adjustment
standard
0.15/100
• Readjust squareness with the
(Dummy disc)
Nylock Bolt M8 x 25 [123].
(Fig. 59)
• Replace Hinge (A) Ass'y [87]
When sliding (tip)
or Gear Case [198] or Turn
0.25/100
Table [13] or Base Ass'y [56]
(Dummy disc)
(if deformed).
• Replace the TCT Saw Blade
0.15
205
(Dummy disc)
[211].
• Check for surface defects on
Washer (D) [221] and repair
with a file as necessary.
• Replace Washers (D) [221].
0.15/100
• Loosen the Bolt M8 x 35 [43]
(Fig. 60)
and adjust as necessary.
• Replace Fence (A) [55] and
Fence (B) [47].
0.10 or less
• Loosen the Bolt M8 x 35 [43]
(Fig. 61)
and adjust surface alignment
of Fence (A) [55] and Fence
(B) [47] as necessary.
• Replace Fence (A) [55] or
Fence (B) [47].
0.15 or less
• Replace the Turn Table [13].
Same as (a)
• Check precision after press-
(Fig. 62)
fitting slide pipes (A) and (B)
of Hinge (A) Ass'y [87].
If precision is poor, replace
them as necessary. (Fig. 62)

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