Remington 490 User Manual download pdf (Page 13)

13

101274

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 power

fastener that will actually penetrate

the concrete. The concrete must

be three times as thick as the in-

tended power fastener penetra-

tion. In most cases, penetration

should be approximately 1" to 1

1

/

4

"

into the base concrete material.

FASTENING INTO STEEL

The proper power fastener length

can be determined by adding the

thickness of the material to be fas-

tened and the thickness of the steel.

The point of the power fastener must

go completely through the steel.

POWER LOADS

Always start with the lowest power

level (gray-level 1). If the first test

power 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

the tool will result if the above instruc-

tions are not followed (see illustra-

tions to right and lower right).

OVERDRIVEN POWER

FASTENERS AND PISTON

An overdriven power fastener re-

sults when too strong of a power

load is used causing the piston to

extend past the muzzle. Move to the

next lightest power load. Repeated

overdrive will damage your tool. By

avoiding overdrive, you can extend

the life of your tool considerably.

NOTE: NEVER fire the tool without

a power fastener. This can damage

the tool and/or cause possible in-

jury to the operator.

IMPORTANT: DO NOT use power fasteners longer than 2

1

/

2

",

or power washer fasteners longer than 3". Power fasteners

longer than 2

1

/

2

" and power washer fasteners longer than 3" will

cause load ejection problems.

Piston Extended

Out of Muzzle

Selecting Power

Fasteners and

Power Loads

Wood or Non-Metals

To Steel

OVERDRIVE

Wood or Non-Metals

To Concrete

Flush With Surface

RIGHT

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