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106763
OVERDRIVE
G 018
Selecting Power Fasteners
and Power loads
FASTENING INTO CONCRETE
The proper power fastener length can be determined by
adding the thickness of the material to be fastened and
the amount of fastener that will actually penetrate the
concrete. The concrete must be three times as thick as
the intended fastener penetration. In most cases, pen-
etration should be approximately 1" to 1
1
/
4
" into the base
concrete material.
FASTENING INTO STEEL
The proper fastener length can be determined by adding
the thickness of the material to be fastened and the
thickness of the steel. The point of the power fastener
must go completely through the steel.
POWER LOADS AND POWER
INDICATOR SETTING
Proper fastening requires the correct combination of power
load level and the tool’s power indicator setting to match the
fastener length for a given application. A general estimate
for the power load level needed for a given application can
be found in the application chart on page 29. For a given
power load level, always start with the lowest power
indicator setting on the tool. If the first test fastening does
not penetrate to the desired depth, increase the tool’s
power indicator setting until a proper fastening is made.
IMPORTANT: Damage to the tool will result if the above
instructions are not followed (see illustrations to right
and lower right).
OVERDRIVEN POWER FASTENERS
AND PISTON
An overdriven power fastener results when the combi-
nation of power load level and the tool’s power indicator
setting is too strong causing the piston to extend past the
muzzle. Decrease the tool’s power indicator setting.
Repeated overdrive will damage the tool. By avoiding
overdrive, the tool’s life can be extended considerably
and costly repairs can be avoided.
NOTE: Never fire the tool without a power fastener. This
can damage the tool and/or cause possible injury to the
operator.
Wood or Non-Metals
To Concrete
Piston Extended
Out of Muzzle
Wood or Non-Metals
To Steel
RIGHT
Flush With Surface