DeWalt P2201 Manual De Instrucciones página 3

Model P2201
reduces load capacity. In thicker steel base materials,
adequate load capacities may be obtained for applications in
which the point of the fastener does not fully penetrate the
steel. job site performance tests are recommended.
fasteners should not be used in areas that have been
welded or cut with a torch as these procedures may have
caused local hardening of the steel. Over driving of the fas-
tener should be avoided as the rebound created may reduce
the load capacity or cause damage to the fastener. when
fastening into unsupported long steel members, it may be
necessary to provide support in the area of the fastening to
prevent spring action which can cause inconsistent penetra-
tion and a reduction in load capacity.
Suitable Base Material
while powder actuated fasteners can be used successfully in
concrete, certain masonry materials, and A 36 steel, some
materials are completely unsuitable. fasteners should never
be fired into hard or brittle materials such as cast iron, tile,
glass, or rock. These materials can shatter easily resulting in
a potential safety hazard. In addition, soft base materials
such as wallboard, plaster, or wood are
not appropriate as the fastener could
Point
Flattens
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pass completely through these
materials. The user should never guess
when fastening into any base material.
failure to follow the recommended
installation and safety guidelines can
result in severe injury or death to the
No
Indent
tool operator and/or bystanders.
Surface
Shatters
Center Punch Test
2
A center punch test should always be
performed to determine the suitability
of the base material for a powder
actuated fastening. This test is relatively
simple and can help to insure a safe,
Material
successful fastening. be sure to wear
Cracks
the appropriate eye protection when
performing this test. To begin, select
3
the fastener to be used for the job.
Then, place the point of the fastener
against the proposed base material.
Fastener Sinks in
with Average
Strike the fastener with a single
Hammer Blow
hammer blow, then examine the point.
If the point of the fastener is not blunted and the base
material has a clear point indentation, it is acceptable to
proceed with the first test installation.
Use of a powder actuated system is not recommended if
the following occurs during the center punch test:
1. The fastener point has been blunted. This indicates that the
base material is too hard.
2. The base material cracks or shatters. This indicates that
the base material is too brittle.
3. when using an average hammer blow, the fastener
penetrates the base material easily. This indicates that the
base material is too soft.
Fastener installation Requirements
It is important to understand the required minimum base
material thickness requirements along with the minimum
spacing and edge distance requirements. failure to follow
these requirements can result in an unsuccessful fastening
and create a safety hazard.
P2201
Base Material Thickness
Concrete base material should be at
least three (3) times as thick as the
fastener embedment penetration. If the
concrete is too thin, the compressive
forces forming at the fasteners point can
cause the free face of the concrete to
break away. This can create a dangerous
condition from flying concrete and/
or the fastener and also results in a reduction of fastener
holding power. for applications in the face shell of concrete
masonry block, select a fastener length which will not
exceed the thickness of the face shell.
Fastener Penetration guide
The following table lists typical embedment or penetration
depths expected in the base materials listed. The
penetration will vary depending on the density of the
material. This table should be used as a guide since the
consistency of these materials varies. when in doubt, a job
site performance test should be conducted.
DenSiTy TyPiCal BaSe MaTeRial
Soft Masonry Concrete block Average Concrete Poured concrete
Dense Concrete Pre-stressed/
pre-cast concrete
edge Distance
Do not fasten closer than 3" from
the edge of concrete. If the concrete
cracks, the fastener may not hold.
Closer edge distances for applications
such as sill plates may be permitted
if specific fastener testing has been
conducted.
Spacing
Setting fasteners too close together
in concrete or masonry can cause
cracking. The recommended minimum
distance between fasteners is 3" center to center.
Fastener length Selection in Concrete
for permanent applications using pins in concrete, first
determine the thickness of the fixture to be fastened. To this,
add the required embedment or penetration into the base
material. This will be the fastener shank length required.
for applications in the face shell of masonry block, select a
fastener length which will not exceed the thickness of the
face shell.
for removable applications with threaded studs, the
shank length required is equal to the embedment depth
required. To determine the minimum threaded length, add
the thickness of the fixture and the nut / washer thickness.
The nut and washer thickness is equal to the nominal thread
diameter. Do not over tighten threaded
parts. Maximum tightening torque
values are listed in the table below.
Use of a nut setter is recommended to
reduce the possibility of over tightening
the fasteners. for critical applications,
perform a job site test.
MaxiMuM ToRque FoR 1/4" STuD
(FT.-lBS.)
2
3
Cat. No. DDF211022P
Penetration
3x
Penetration
PeneTRaTion
1" -1-1/4" 3/4" - 1"
5/8" - 3/4"
3"
3"
Fixture
Embedment
MaxiMuM ToRque FoR 3/8" STuD
(FT.-lBS)
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