Hitachi C 8FSHE ユーザーズマニュアル

-43-

2. Troubleshooting guide

Item

Phenomenon

Cause

Factory

standard

Inspection, repair or adjustment

1

Inaccurate cutting
--- Inaccurate

squareness of the
cut surface

--- Cut surfaces do not

fit together properly.

(a) Inaccurate

squareness between
the turn table and the
saw blade causes the
saw blade to cut into
the workpiece at an
angle.

0.15/100
(Dummy disc)
(Fig. 59)
When sliding (tip)
0.25/100
(Dummy disc)

• Readjust squareness with the

Nylock Bolt M8 x 25 [123].

• Replace Hinge (A) Ass’y [87]

or Gear Case [198] or Turn
Table [13] or Base Ass’y [56]
(if deformed).

(b) Excessive deflection

of the saw blade
(Excessive vibration)

0.15

/

φ

205

(Dummy disc)

• Replace the TCT Saw Blade

.

• Check for surface defects on

Washer (D) [221] and repair
with a file as necessary.

• Replace Washers (D) [221].

(c) Inaccurate

squareness between
fence (A) and fence
(B) and the saw blade

0.15/100
(Fig. 60)

• Loosen the Bolt M8 x 35 [43]

and adjust as necessary.

• Replace Fence (A) [55] and

Fence (B) [47].

(d) Surfaces of fence (A)

and fence (B) are not
accurately aligned,
causing workpiece to
deviate from proper
squareness.

0.10 or less
(Fig. 61)

• Loosen the Bolt M8 x 35 [43]

and adjust surface alignment
of Fence (A) [55] and Fence
(B) [47] as necessary.

• Replace Fence (A) [55] or

Fence (B) [47].

(e) Inaccurate surface

flatness of the turn
table.

0.15 or less

• Replace the Turn Table [13].

(f) Squareness between

the saw blade and the
turn table is changed
when sliding.

Same as (a)
(Fig. 62)

• Check precision after press-

fitting slide pipes (A) and (B)
of Hinge (A) Ass'y [87].
If precision is poor, replace
them as necessary. (Fig. 62)

Fig. 59

Fig. 60

Fig. 61