Hitachi C 8FSHE ユーザーズマニュアル

-45-

Item

Phenomenon

Cause

Factory

standard

Inspection, repair or adjustment

Rough cut surface
Parallelism (A)= 0.02/43

(a) Large deflection of

saw blade.
(Causes rough cut
surface.)

0.15

205

(Dummy disc)

• Same as Item 1- (b).

(b) Poor movement of

slide pipe section
prevents smooth
cutting.

Slide load should be
within 3 kgf.

• Apply machine oil to the slide

pipe section.

• Check the slide pipe section

for any scratches or the like.

• Repair as necessary.
• Readjust the Bushing [115].

at the slide pipe
section.

• Readjust the Bushing [115].
• Replace Hinge (A) Ass’y [87],

or the Ball Bushing [114] as
necessary.

(d) Surface parallelism of

washers (D) is
inaccurate due to
surface defects such
as impact marks and
scratches.

0.02/43
(Fig. 64)

• Repair impact marks or

scratches at Washer (D) [221].

• Replace them if necessary.

(e) Improper slide cutting

technique.

• See paragraph "Slide

Cutting." Do not apply
unnecessary force for
successful slide cutting.

(f) Inaccurate squareness

between turn table and
saw blade, causing
saw blade to cut at an
improper angle and
make cutting marks.

0.15/100
(Fig. 59)

• Same as Item 1- (a).

(g) Excessively fast

cutting speed.

• Reduce cutting speed.

(h) Improper clamping of

workpiece.

• Properly clamp workpiece with

Vise Ass’y [42].

(i) Turn table is not fixed

with side handle.

• During cutting, fix the Turn

Table [13] in position with the
Side Handle [23] without fail.

(j) Loose fitting of

swiveling portion of
hinge and gear case,
or sluggish movement.

• Same as Item 1- (h).

(k) Cutting operation

becomes sluggish
because workpiece is
warped or bent.

• Correct warp or bend with

planer.

(l) Excessive vibration

• Recheck items (a), (c), (d) and

(i).

Fig. 64