Bosch PSB 700-2 RE Bedienungsanleitung Seite 21

OBJ_DOKU-1584-003.fm Page 7 Monday, January 23, 2006 10:30 AM
Overload Protection (PSB 1000-2 RCA)
If the tool insert becomes caught or jammed, the drive
to the drill spindle is interrupted. Because of the forces
that occur, always hold the power tool firmly with
both hands and provide for a secure stance.
The overload protection indicator 6 flashes when the
machine is subject to excessive load. Reduce the load
to continue working.
When overloading, the power tool switches off and the
overload protection indicator 6 lights up continuously.
Release the On/Off switch 9 and switch the machine
on again to continue working.
The overload protection indicator 6 lights up continu-
ously when the gear selector 11 is in the "S" position.
The overload protection is deactivated when the gear
selector 11 is in the "S" position. Be prepared for
high reaction torque when the drilling tool jams.
After longer periods of working at low speed, allow the
machine to cool down by running it for approx.
3 minutes at maximum speed with no load.
Adjusting the Speed/Impact Frequency
Depending on the pressure applied on the On/Off
switch 9, the speed/impact rate can be adjusted varia-
bly.
Light pressure on the On/Off switch 9 results in low
speed/impact rate. Further pressure on the switch
increases the speed/impact rate.
Preselecting the Speed/Impact Frequency
(see figure L) (PSB 700-2 RE/PSB 800-2 RA)
With the thumbwheel for speed preselection 28, the
required speed/impact frequency can be preselected
even during operation.
The required speed/impact frequency depends on the
material and the working conditions, and can be deter-
mined through practical testing.
2 609 001 190 • 23.1.06
Electronic Speed Preselection (Speed Control)
(PSB 1000-2 RCA)
With the "Speed Control" thumbwheel 7, the required
speed/impact frequency can be preselected even dur-
ing operation.
The required speed/impact frequency depends on the
material and the working conditions, and can be deter-
mined through practical testing.
I:
For working with low speed.
II:
For working with medium speed.
III:
For working with high speed.
For working with maximum speed.
Operating Instructions
Position the machine against the nut/screw only
when it is switched off.
Tips
After longer periods of working at low speed, allow the
machine to cool down by running it for approx.
3 minutes at maximum speed with no load.
For drilling in tiles, set the selector switch 2 to the "Drill-
ing" symbol. Do not switch over to the symbol "Impact
Drilling" or work with impact until after drilling through
the tile.
Use carbide tipped drill bits when working in concrete,
masonry and brick wall.
For drilling in metal, use only perfectly sharpened HSS
drill bits (HSS=high-speed steel). The appropriate
quality is guaranteed by the Bosch accessories pro-
gram.
Twist drills from 2.5–10 mm can easily be sharpened
with the drill bit sharpener (see accessories).
English–7