Bosch GNA 3,5 Professional Original Operating Instructions page 5

OBJ_BUCH-555-004.book Page 5 Thursday, April 14, 2016 9:28 AM
Safety Warnings for Nibblers
 When working with the machine, always hold it firmly
with both hands and provide for a secure stance. The
power tool is guided more secure with both hands.
 Secure the workpiece. A workpiece clamped with clamp-
ing devices or in a vice is held more secure than by hand.
 Always wait until the machine has come to a complete
stop before placing it down. The tool insert can jam and
lead to loss of control over the power tool.
Products sold in GB only: Your product is fitted with a
BS 1363/A approved electric plug with internal fuse (ASTA
approved to BS 1362).
If the plug is not suitable for your socket outlets, it should be
cut off and an appropriate plug fitted in its place by an author-
ised customer service agent. The replacement plug should
have the same fuse rating as the original plug.
The severed plug must be disposed of to avoid a possible
shock hazard and should never be inserted into a mains sock-
et elsewhere.
Products sold in AUS and NZ only: Use a residual current de-
vice (RCD) with a rated residual current of 30 mA or less.
Product Description and Specifica-
tions
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and in-
structions may result in electric shock, fire
and/or serious injury.
Intended Use
The machine is intended for cutting sheet metal without de-
forming the material and is suitable for straight cuts, cut-outs
and narrow curves.
Product Features
The numbering of the product features refers to the illustra-
tion of the machine on the graphics page.
1 Fixing screw for extension
2 Handle extension
3 Auxiliary handle
4 Allen key
5 On/Off switch
6 Thread for auxiliary handle
7 Screw for punch fastener
8 Borehole at die holder
9 Screw for die
10 Punch
11 Guide plate
12 Hold down guide
13 Screw for hold down guide
14 Die
15 Die holder
16 Die adjustment screw
Bosch Power Tools
Accessories shown or described are not part of the standard deliv-
ery scope of the product. A complete overview of accessories can
be found in our accessories program.
Technical Data
Nibbler
Article number
Rated power input
Output power
Stroke rate at no load n
0
Stroke speed under load
Max. steel sheet cutting
capacity*
Cutting width
Smallest curve radius
Weight according to EPTA-
Procedure 01:2014
Protection class
2
* to 400 N/mm with reference to steel sheet
The values given are valid for a nominal voltage [U] of 230 V. For differ-
ent voltages and models for specific countries, these values can vary.
Assembly
Auxiliary Handle
Screw the auxiliary handle 3 either at the right or the left side
of the housing into the thread 6.
Using the handle mount 2 you can extend the auxiliary handle
and pivot it, user-defined, in order to obtain a secure and
comfortable working position.
If the auxiliary handle 3 is already mounted, then unscrew it
from the thread 6. Tighten the handle mount 2 with the screw
1 in the desired angle at the right or the left side of the housing
in the screw thread 6. Correspondingly screw the auxiliary
handle at the right or left side into the narrow end of the han-
dle mount 2.
If you fix the handle mount at the left side of the housing make
sure not to cover the On/Off switch 5.
Operation
Starting Operation
 Observe correct mains voltage! The voltage of the pow-
er source must agree with the voltage specified on the
nameplate of the machine. Power tools marked with
230 V can also be operated with 220 V.
Adjust the hold down guide
To work without vibration, adjust the hold down guide 12 to
the respective sheet thickness.
Hold the power tool in such a manner so that the lower die 14
touches the under side of the sheet metal. Loosen the screws
13 of the hold down guide. Push the hold down guide 12 with
a little play (approx. 0.3 mm) onto the sheet. Make sure that
the hold down guide is straight. Retighten the screws 13.
English | 5
GNA 3,5
Professional
0 601 533 1..
W 620
W 340
-1
min 1000
-1
min 670
mm 3.5
mm 6
mm 70
8 3.5
/ II
1 609 92A 1XG | (14.4.16)