Bosch Professional GBM 50-2 Original Instructions Manual page 24

24 | English
(41) Pawl on ratchet
(42) Safety strap
(43) Scale for drilling depth
(44) Drill unit
(45) Screws for guide rail
(46) Screws for gap adjustment
(47) Laser cover
(48) Laser beam output
(49) Clip
(50) Screw for laser adjustment (right/left)
(51) Screw for laser adjustment (forward/back)
a) Accessories shown or described are not included with the
product as standard. You can find the complete selection of
accessories in our accessories range.
Technical Data
Magnetic drill
Article number
Rated power input
No-load speed
– First gear
– Second gear
Laser type
Laser class
C
6
Laser line divergence
Max. drilling diameter
– Annular cutter
– Twist drill bit
– Screw tap
Tool holder
Magnet retention force
Max. drill stroke
Magnetic base dimensions
(width x depth x height)
Weight according to
EPTA-Procedure 01:2014
Protection class
The specifications apply to a rated voltage [U] of 230 V. These spe-
cifications may vary at different voltages and in country-specific mod-
els.
Noise values
Noise emission values determined according to
EN 62841-1 Annex I.
Typically, the A-weighted noise level of the power tool is:
Sound pressure level 90 dB(A); Sound power level 110
dB(A). Uncertainty K=3 dB.
1 609 92A 7Y6 | (31.05.2022)
GBM 50-2
3 601 AB4 0..
W 1200
−1
min 50−250
−1
min 100−510
nm 635
mW < 1
2
1
mrad (full 0.5
angle)
mm 50
mm 23
M16
MT 2 – DIN 228
kN 14
mm 165
mm 200 x 98 x 38.5
kg 14.7
/I
Wear hearing protection
The noise emission value given in these instructions has
been measured in accordance with a standardised measur-
ing procedure and may be used to compare power tools. It
may also be used for a preliminary estimation of noise emis-
sions.
The noise emission value given represents the main applica-
tions of the power tool. However, if the power tool is used
for other applications, with different application tools or is
poorly maintained, the noise emission value may differ. This
may significantly increase noise emissions over the total
working period.
To estimate noise emissions accurately, the times when the
tool is switched off, or when it is running but not actually be-
ing used, should also be taken into account. This may signi-
ficantly reduce noise emissions over the total working
period.
Assembly
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Fitting the crank handle
– Screw the three crank handles (4) tightly into the crank
hub (5).
Changing the tool (see figure A)
– Turn the drive unit all the way up using the crank handle
(4).
– Ensure that the application tools are free of grease.
Fitting the annular cutter
– Insert the pilot pin (26) into the annular cutter (27) (TCT
and HSS annular cutters require different diameters of pi-
lot pin).
– Insert the annular cutter with the pilot pin into the annular
cutter adapter (22) and tighten the screws using the hex
key (6 mm) (25).
Where possible, you should use an annular cutter with
a Weldon shank.
– Insert the annular cutter adapter into the tool holder
(12).
– Connect the coolant hose (37) with the connector on the
annular cutter adapter.
Fitting the twist drill bit
Tools with morse taper MT2:
– Insert the tool directly into the tool holder (12).
Tools with morse taper MT1:
– Insert the tool into the reduction sleeve (MT2/MT1) (30).
– Insert the reduction sleeve (with the tool inserted) into
the tool holder (12).
Tools with cylindrical shank:
– Screw the keyed chuck (32) onto the taper mandrel (33)
and insert the tool.
Bosch Power Tools