Bosch GBH Professional 2-18 E Notice Originale page 22

OBJ_BUCH-427-002.book Page 22 Tuesday, March 17, 2009 6:40 PM
22 | English
Reversing the Rotational Direction
(GBH 2-18 RE) (see figure I)
The rotational direction switch 6 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 5 actuated.
Right rotation: Push the rotational direction
switch 6 rightward to the stop.
Left rotation: Push the rotational direction
switch 6 leftward to the stop.
For hammer drilling and drilling, always set the
direction of rotation to right rotation.
Switching On and Off
To start the machine, press the On/Off switch 5.
To lock the On/Off switch, keep it pressed and
additionally push the lock-on button 4.
To switch off the machine, release the On/Off
switch 5. When the On/Off switch 5 is locked,
press it first and then release it.
Setting the Speed/Impact Rate
The speed/impact rate of the switched on pow-
er tool can be variably adjusted, depending on
how far the On/Off switch 5 is pressed.
Light pressure on the On/Off switch 5 results in
low speed/impact rate. Further pressure on the
switch increases the speed/impact rate.
Safety Clutch
If the tool insert becomes caught or
jammed, the drive to the drill spindle is in-
terrupted. Because of the forces that occur,
always hold the power tool firmly with both
hands and provide for a secure stance.
If the power tool jams, switch the machine
off and loosen the tool insert. When switch-
ing the machine on with the drilling tool
jammed, high reaction torques can occur.
1 619 P07 179 | (17.3.09)
Working Advice
Inserting Screwdriver Bits (see figure J)
Apply the power tool to the screw/nut only
when it is switched off. Rotating tool inserts
can slip off.
To work with screwdriver bits, a universal bit
holder 21 with SDS-plus shank (accessory) is
required.
Clean the shank end of the adapter shank and
apply a light coat of grease.
Insert the universal bit holder with a turning
motion into the tool holder until it automatically
locks.
Check the locking effect by pulling the universal
bit holder.
Insert a screwdriver bit into the universal bit
holder. Use only screwdriver bits that match the
screw head.
To remove the universal bit holder, pull the lock-
ing sleeve 3 toward the rear and remove the uni-
versal bit holder 21 out of the tool holder.
Maintenance and Service
Maintenance and Cleaning
Before any work on the machine itself, pull
the mains plug.
For safe and proper working, always keep
the machine and ventilation slots clean.
A damaged dust protection cap should be
changed immediately. We recommend hav-
ing this carried out by an after-sales service.
Clean the tool holder 1 each time after using.
If the machine should fail despite the care taken
in manufacturing and testing procedures, repair
should be carried out by an after-sales service
centre for Bosch power tools.
In all correspondence and spare parts order,
please always include the 10-digit article
number given on the type plate of the machine.
Bosch Power Tools