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Bosch GSN 90-21 RK Professional Manual

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Bosch Power Tools 1 609 92A 10Z | (10.11.14)
English | 13
Do not work on ladders or scaffolds
when the actuation system “Contact ac-
tuation” is set. In particular, do not move
from one fastening location to another,
close boxes or enclosures, or fasten
transport-securing fixtures on e.g., vehicles and wag-
gons, via scaffolds, stairs, ladders or ladder-like con-
structions, such as roof battens. With this actuation sys-
tem, a fastener will be discharged each time when
accidentally applying the pneumatic tool while the dis-
charge lock-off is pressed in. This can lead to injury.
Observe the conditions of the job site. It is possible
that fasteners can burst through thin workpieces or be
deflected when working in corners or against edges,
and harm persons.
Disconnect the air supply, when the fas-
tener is jammed in the pneumatic tool.
When the pneumatic tool is still connected
to the power supply, it can accidentally be
actuated when removing a jammed fasten-
er.
Use caution when removing a jammed or stuck fas-
tener. The system can be under tension and cause the
fastener to be shot or thrust out, while attempting to
clear the jam.
Do not use this to pneumatic tool to fasten electrical
wiring. It is not suitable for fastening electrical wiring,
can damage the insulation of electric cables and thus
lead to electric shock and danger of fire.
Never use oxygen or flammable gases as the energy
source for the pneumatic tool. Flammable gases are
dangerous and can cause the pneumatic tool to ex-
plode.
Use appropriate detectors to determine if utility
lines are hidden in the work area or call the local util-
ity company for assistance. Contact with electric lines
can lead to fire and electric shock. Damaging a gas line
can lead to explosion. Penetrating a water line causes
property damage.
The pneumatic tool may only be connected to lines,
for which the maximal permissible pressure of the
pneumatic tool cannot be exceeded by more than
10 %; for higher pressures, a pressure control valve
(pressure reducer) with preceding pressure-limita-
tion valve in the compressed-air line must be in-
stalled. Excessive pressure leads to abnormal opera-
tion or breakage of the pneumatic tool, which can lead
to injury.
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 pneumatic tool is intended for connecting work in roof-
ing, encasing, battening, manufacturing wall and ceiling el-
ements, wood facades, pallets, wood fences, noise-reduc-
tion walls and boxes.
Only the fasteners (nails, staples, etc.) specified in table
“Technical Data” may be used.
Product Features
The numbering of the product features refers to the illus-
tration of the pneumatic tool on the graphics page.
1 Workpiece protector
2 Discharge lock-off
3 Thumbwheel for depth stop adjustment
4 Air outlet
5 Handle
6 Air connector
7 Magazine slider
8 Magazine
9 Selector switch for actuation system
10 Trigger
11 Outlet
12 Air-connection coupling
13 Supply-air hose
14 Nail strip*
15 Magazine lock
16 Lock pin
17 Driver blade
18 Magazine holder
19 Magazine retainer at shot duct
20 Magazine rail
21 Locking screw
22 Cover lid
23 Spring clip
24 Screwable eyelet for pneumatic tool suspension
*Accessories shown or described are not part of the standard
delivery scope of the product. A complete overview of accesso-
ries can be found in our accessories program.
Technical Data
Compressed-air nailer GSN 90-21 RK GSN 90-34 DK GSN 100-34 DK
Article number
3 601 D91 0.. 3 601 D91 3.. 3 601 D91 5..
Driving force at 6.3 bar (91 psi)
Nm 86 87 94
Actuation systems
– Single actuation with safety run
– Contact actuation
Fastener
–Type
–Length
–Diameter
mm
mm
Nail strip
Plastic-bonded
Round head
50–90
2.8–3.8
Nail strip
Paper-bonded
D-head
50–90
2.8–3.8
Nail strip
Paper-bonded
D-head
65–100
2.8–3.3
Magazine angle
°2134 34
Magazine capacity, max.
73 99 99
Engine oil (SAE 10, SAE 20)
ml 0.25–0.5 0.25–0.5 0.25–0.5
Internal volume
ml 591 591 660
Max. working pressure
bar 5–8 5–8 5–8
Connecting thread
"3/83/8 3/8
Supply-air hose
– Max. operating pressure at 20 °C
– Inner diameter of hose
– Max. hose length
bar
"
m
10
3/8
30
10
3/8
30
10
3/8
30
Air consumption per driving procedure at 6.8 bar (100 psi)
l3.023.02 3.49
Dimensions
– Height
–Width
–Length
mm
mm
mm
342
105
542
355
105
485
376
105
485
Weight according to EPTA-Procedure 01/2003
kg 3.89 3.8 4.26
Noise/Vibration Information
Sound emission values determined according to EN 12549.
Typically the A-weighted noise levels of the pneumatic tool are:
Sound pressure level XXX dB(A); sound power level YYY dB(A).
Uncertainty K=3 dB.
Wear hearing protection!
dB(A)
dB(A)
XXX = 110
YYY = 123
XXX = 110
YYY = 123
XXX = 94
YYY = 107
Vibration total values a
h
and uncertainty K determined according to
EN ISO 20643:
a
h
=ZZZ m/s
2
, K= 1.5 m/s
2
. m/s
2
ZZZ < 2.5 ZZZ < 2.5 ZZZ = 4.4
OBJ_BUCH-1037-005.book Page 13 Monday, November 10, 2014 12:55 PM
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