Maintenance And Cleaning - Bosch GAH 500 DSE Bedienungsanleitung

Operating Modes (Fig. A – K)
The operation of the gearbox for each application is set
with the mode selection switch 6:
Drilling/ Hammer
Screw Drilling
Driving
For this purpose, press the unlocking button 5 and set
to the desired operating mode.
The operating mode selector switch may be ac-
tuated only at a standstill.
Do not use tools without SDS-plus for hammer
drilling or chiselling!
The following table shows how the operating mode sel-
ector switch 6, the right/left rotation switch 11 (GAH 500
DRS) as well as the speed regulator 12 (GAH 500 DRS)
are to be set for the various operating modes (See fold-
out page for figures):
Operating Mode
Hammer drilling in
concrete or stone
Drilling in steel or wood
Screw driving
Right rotation
Left rotation
Chiselling
Chisel Adjustment (Vario-Lock)
The chiselling tool can be turned in the tool holder (Vario-
Lock) to an optimum, fatigue-free working position.
Remove the vacuum attachment. If the machine is oper-
ated without the vacuuming attachment, the vacuuming
connection 10 must always be closed with the plug 19
(accessory).
Insert the tool. Press the unlocking button 5 and set the
mode selection switch 6 to Vario-Lock (Fig.
Turn the tool holder to the desired position. Thirty six po-
sitions are possible.
1 619 929 391 • (01.03) T
Vario-Lock Chiselling
Type
GAH 500 GAH 500
DSE DRS
Fig. Fig.
A E
Fig. Fig.
B F
Fig. Fig.
C G
– Fig.
H
Fig. Fig.
D I
).
K
Sharpening the Chiselling Tools
(Fig. – )
L N
With sharpened insertion tools, one achieves good
working performance and long service life. Therefore,
sharpen the chisel regularly.
Sharpen the tool on a grinding wheel (e.g. alumina oxide)
with constant water supply.
Take care that the cutting edge does not show signs of
coloration since this affects the hardness of the tool.

Maintenance and Cleaning

Before any work on the machine itself, pull the
mains plug.
For safe and efficient working, always keep the machine
and the ventilation slots clean.
Clean the tool mount daily.
Replacing the Dust Protection Cap
Damaged dust protection caps should be replaced as
soon as possible since dust that enters the tool holder
can cause malfunctions.
It is recommended that this be performed by
customer service.
WARNING
Important instructions for connecting a new 3-
pin plug to the 2-wire cable.
The wires in the cable are coloured according to the fol-
lowing code:
strain relief
live = brown
neutral = blue
Do not connect the blue or brown wire to the earth ter-
minal of the plug.
Important: If the plug on the cable of this machine
must be replaced, dispose of the old plug to prevent
misuse.
If the machine should fail despite the care taken in man-
ufacture and testing, repair should be carried out by an
authorised customer services agent for Bosch power
tools.
For all correspondence and spare parts orders, always
include the 10-digit order number of the machine.
English–4
To be fitted
by qualified
professionals only