Hitachi C 8FSHE ユーザーズマニュアル

-46-

Item

Phenomenon

Cause

Factory

standard

Inspection, repair or adjustment

3

Saw blade is locked.

(a) Excessively fast

cutting speed

-

• Reduce cutting speed.

(b) Core diameter of

extension cord is too
small.

-

• Use a thicker and shorter

extension cord.

(c) Excessive cutting

force is applied due to
dull saw blade.

-

• Resharpen saw blade.

(d) Incorrect saw blade is

used.

-

• Use a suitable Hitachi

supplied saw blade.

• An increased number of teeth

on the saw blade increases
the cutting resistance. When
using a saw blade with a large
number of teeth, reduce the
cutting speed.

(e) The saw blade binds

in workpiece during
cutting because
workpiece is warped
or bent.

-

• Correct workpiece

deformation with planer.

4

Saw blade does not
rotate when switch is
triggered.

(a) Power cord is not

connected to power
supply.

-

• Check power supply voltage.
• Connect the power cord to

power supply.

(b) Carbon brush wear

exceeds allowable
limit (5 mm).

-

• Check the Carbon Brushes

 for wear.

• Replace the Carbon Brushes

.

(c) Contact failure of the

switch

-

• Check the Switch (3P Faston

Type) W/O Lock [170] for
conductivity.

• Replace the Switch (3P

Faston Type) W/O Lock [170].

5

Saw blade runs too
slow
(4,950 min

-1

 or less).

(a) Power supply voltage

is lower than rated
voltage.

-

• Check for power supply

voltage.

• Check if extension cord is

appropriate. See Instruction
Manual for appropriate
extension cords.

6

Light (H) Ass’y does
not light.
(Only Model C 8FSHE)

(a) Improper wiring

-

• Check the wiring.

(b) Switch failure

-

• Check the Switch (W/Cover)

 for conductivity.

• Replace the Switch (W/Cover)

.

(c) Switching power

supply failure

-

• Check the Switching Power

Supply Ass’y [165] for
conductivity, input and output
referring to "Wiring diagram."

• Replace the Switching Power

Supply Ass’y [165].

(d) Light (H) Ass’y failure

-

• Replace the Light (H) Ass’y

.