Hitachi W 6VB Bedienungsanleitung Seite 8

English
3. Maintenance of the motor
The motor unit winding is the very "heart" of the
power tool. Exercise due care to ensure the winding
does not becomes damaged and/or wet with oil or
water.
4. Inspecting the carbon brushes (Fig.9)
The motor employs carbon brushes which are
consumable parts. When they become worn to or
near "wear limit", it could result in motor trouble.
When an auto-stop carbon brush is equipped, the
motor will stop automatically.
At that time, replace both carbon brushes with new
ones which have the same carbon brush Nos. shown
in Fig.9.
In addition, always keep carbon brushes clean and
ensure that they slide freely within the brush holders.
5. Replacing a carbon brushes (Fig.10)
Disassembly:
(1) Loosen the three machine screws, and remove the
handle cover.
(2) Remove the holder piece and lift the brush holder
gently with a screwdriver or the like, and remove it
from the housing while suppressing the carbon brush,
as shown in Fig.10. Be careful not to excessively pull
the lead wire.
(3) Remove the carbon brush from the brush holder.
Assembly
(1) Insert the new carbon brush into the brush holder.
(2) Insert the brush holder together with the carbon brush
into the brush holder chamber in the housing.
(3) Ensure that the lead wire and other parts are properly
positioned, and that there is no possibility of the lead
wire coming in contact with the armature or other
moving parts.
(4) Reinstall the handle cover while ensuring that the
Internal wiring does not become pinched between
the cover and the housing, and secure the handle
cover with the three machine screws.
CAUTIONS
Be sure to follow the above assembly procedures
exactly. Should the internal wiring contact the
armature or become pinched between the handle
cover and housing, a serious risk of electric shock to
the operator would be created.
Do not tamper with parts other than those necessary
to effect carbon brush replacement.
NOTE
Due to HITACHI's continuing program of research and
development, the specifications herein are subject to
change without prior notice.
6
IMPORTANT
Correct connection of the plug
The wires of the mains lead are coloured in accordance
with the following code:
Blue:- Neutral
Brown:- Live
As the colours of the wires in the mains lead of this tool
may not correspond with the coloured markings
identifying the terminals in your plug proceed as follows:
The wire coloured blue must be connected to the terminal
marked with the letter N or coloured black. The wire
coloured brown must be connected to the terminal
marked with the letter L or coloured red. Neither core
must be connected to the earth terminal.
NOTE
This requirement is provided according to BRITISH
STANDARD 2769 1984.
Therefore, the letter code and colour code may not be
applicable to other markets except United Kingdom.
Information concerning airborne noise and vibration
The measured values were determined according to
EN50144.
The typical A-weighted sound pressure level: 82 dB (A).
Wear ear protection.
The typical weighted root mean square acceleration value
does not exceed 2.5 m/s
2
.