Selecting Fasteners And Powder Loads - Remington 490 Operating Instructions Manual

Selecting Power
Fasteners and
Powder Loads
FASTENING INTO CONCRETE
The proper power fastener length
can be determined by adding the
thickness of the material to be fas-
tened and the amount of fastener
that will actually penetrate the con-
crete. The concrete must be three
482-80
times as thick as the intended fas-
Wood or Non-Metals
tener penetration. In most cases,
To Concrete
penetration should be approxi-
1
mately 1" to 1 / " into the base
4
concrete material.
FASTENING INTO STEEL
The proper fastener length can be
determined by adding the thick-
ness of the material to be fastened
and the thickness of the steel. The
point of the power fastener must go
Wood or Non-Metals
completely through the steel.
To Steel
POWDER LOADS
Always start with the lowest power
level (gray-level 1). If the first test
RIGHT
fastener does not penetrate to the
desired depth, move to the next
highest power level (brown-level 2).
Increase until a proper fastening is
made. IMPORTANT: Damage to
482-65
the tool will result if the above in-
structions are not followed (see il-
Flush With Surface
lustrations to right and lower right).
OVERDRIVEN POWER
FASTENERS AND PISTON
OVERDRIVE
An overdriven power fastener re-
sults when too strong of a powder
load is used causing the piston to
extend past the muzzle. Move to the
next lightest powder load. Repeated
482-66
overdrive will damage your tool. By
G 018
avoiding overdrive, you can extend
the life of your tool considerably and
avoid costly repairs.
Piston Extended
Out of Muzzle
NOTE: NEVER fire the tool without
a power fastener. This can damage
the tool and/or cause possible injury to the operator.
1
IMPORTANT: DO NOT use power fasteners longer than 2 / ",
2
or power washer fasteners longer than 3". Power fasteners
1
longer than 2 / " and power washer fasteners longer than 3" will
2
cause load ejection problems.
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