Working Advice; Maintenance And Service; Maintenance And Cleaning - Bosch HGS 0 602 207 Serie Manual Original

OBJ_BUCH-640-001.book Page 43 Thursday, September 17, 2009 12:24 PM
Switching the Power Tool On/Off
(Type 0 602 238 ...)
To switch on the power tool, press the On/Off
switch 6 and keep it pressed during the working
procedure.
To lock the On/Off switch 6, press and hold the
On/Off switch and push the locking lever 8 to-
ward the front until it engages.
To switch off the machine, release the On/Off
switch 6.
When the On/Off switch 6 is locked-on, press it
first and then release it. The locking lever 8 au-
tomatically disengages.

Working Advice

Disconnect the power supply before mak-
ing any adjustments, changing accessories,
or placing the machine aside. This safety
measure prevents accidental starting of the
power tool.
Clamp the workpiece if it does not remain
stationary due to its own weight.
Do not strain the machine so heavily that it
comes to a standstill.
After heavily straining the power tool, con-
tinue to run it at no-load for several minutes
to cool down the cutting/grinding tool.
Application tools can become very hot
while working. Do not touch them before
they have cooled down.
Working with the Straight Grinder
The choice of the application tools, such as
grinding points or flap discs, depends on the ap-
plication case and area.
For support on choosing the appropriate grind-
ing accessory, please contact your Bosch spe-
cialist shop.
Optimum grinding results are achieved when
the grinding tool is moved uniformly back and
forth with light pressure.
Pressure that is too strong reduces the perform-
ance capability of the machine and causes the
grinding tool to wear more quickly.
Bosch Power Tools
Grinding with Grinding Point
For grinding points, the grinding medium, e.g.
corundum or silicone carbide, is formed and
bond with suitable bonding agents and possibly
with reinforcement inlays, thus representing a
grinding and load-carrying unit. During opera-
tion, both the grinding and bonding agent are
"used up" evenly, whereby the size of the grind-
ing point gradually becomes smaller.
Grinding points are particularly suitable for pre-
cision mechanical work, mould making and for
deburring metal. Due to the high circumferential
speed, the workpiece is subject to high heat de-
velopment.
Grinding with Grinding Discs
When grinding, the best working results are
achieved when the grinding disc is applied as
flat as possible. Move the machine back and
forth applying moderate pressure. This ensures
that the workpiece does not become too hot,
and is not subject to discolouration and
grooves.

Maintenance and Service

Maintenance and Cleaning

Disconnect the power supply before mak-
ing any adjustments, changing accessories,
or placing the machine aside. This safety
measure prevents accidental starting of the
power tool.
For safe and proper working, always keep
the machine and ventilation slots clean.
In extreme conditions, always use dust ex-
traction as far as possible. Blow out ventila-
tion slots frequently and install a residual
current device (RCD). When working metals,
conductive dust can settle in the interior of
the power tool. The total insulation of the
power tool can be impaired.
3 609 929 B78 | (17.9.09)
English | 43