Bosch GBM 16-2 E Instructions D'emploi page 8

EURO • Printed in Germany • BA 3 609 929 468 • GBM 16-2 • GB • OSW 02.05
3 609 929 468.book Seite 2 Donnerstag, 2. Mai 2002 10:51 10
Auxiliary Handle/Depth Stop
(see figure )
A
Depending on the application, the auxiliary han-
dle can be mounted to the spindle collar in any
position.
For adjustment of the auxiliary handle, turn the
bottom part of the handle in counterclockwise di-
rection ( ) and retighten again in the required
position ( ).
The drilling depth can be set with the depth
stop 6. Loosen wing bolt 7 and pull the depth stop
out until it is flush with the tip of the drill bit. On the
scale (arrow), subtract the required drilling
depth X from the scale value read and adjust.
Inserting the Tool
Open the drill chuck until the tool can be inserted.
Insert the tool.
Clamp evenly in all three holes with the chuck
key 5.
Initial Operation
Observe correct mains voltage: The voltage of
the power source must agree with the voltage
specified on the nameplate of the machine.
Equipment marked with 230 V can also be con-
nected to 220 V.
Switching On and Off
To start the machine, press the On/Off switch 4
and keep it depressed.
Lock the pushed On/Off
3
switch 4 by pushing the lock-
on button 3 upward.
4
To switch off the machine, release the On/Off
switch 4 or push and release it then.
Gear Selection, Mechanical
Two speed ranges can be pre-selected with the
gear selector 2:
1st gear:
Low speed range; for working with
large drilling diameter.
8 • 3 609 929 468 • TMS • 18.04.02
2nd gear:
Higher speed range; for working
with small drilling diameter.
Actuate the gear selector 2 only
when the machine is at a stand-
still!
If the gear selector 2 cannot be fully engaged at
standstill, lightly rotate the drive/drill spindle with
the drill bit by twisting the chuck.
Replacing the Drill Chuck
Clamp the short end of an Allen key in the chuck.
Loosening the Drill Chuck
(see figure )
B
Place the machine on a firm surface (e. g., work-
bench). Hold the machine firmly and loosen the
drill chuck by turning to the left in the same way
as for a screw. Loosen a tightly sitting drill chuck
by giving the long shaft of the Allen key 9 a sharp
knock.
Tightening the Drill Chuck
The drill chuck is mounted in reverse order.
Tips
Sharpening Drill Bits
For drilling in metal, use only perfectly sharpened
HSS drills. The appropriate quality is guaranteed
by the Bosch accessories program.
Twist drills from 3.5 – 10 mm can easily be sharp-
ened with the drill sharpener (see accessories).
Bench Stand
We recommend the use of a bench stand (see
accessories) for work where greater precision is
particularly required.
Machine Vice
The machine vice can be obtained as an acces-
sory and clamps work pieces tightly for drilling.
This prevents the work piece from turning and
any accidents this would cause.
English - 2