Remington 490 - Manual (Page 6)

6 101274
7. An operator taking medication should take extra precau-
tions while handling the tool. NEVER drink alcoholic bever-
ages or take medications which impair your vision, balance,
or judgement before using a powder actuated tool.
KNOW YOUR FASTENING BASE MATERIAL
1. ALWAYS know the thickness and type of base material into
which you are fastening. NEVER GUESS. Test the base
material by using the Center Punch Test. The Center Punch
Test is performed by using a hammer to test drive the
particular power fastener to be used into the material. If the
point penetrates easily, the material is too soft. If the point
becomes blunt, the material is too hard. If the material
fractures, cracks or shatters, the material is too brittle. Test
fastenings can be made if the material shows a clear power
fastener impression and the power fastener point is not
blunted. Always start with the lowest power load (Gray-
Level 1) and proceeding with the order shown in the lower
right-hand figure above. ALWAYS wear approved eye
protection.
?
?
?
TOO HARD
Point
flattens
482-29
?
?
?
?
482-26
CENTER
PUNCH TEST
482-27
TOO SOFT
Sinks in
with
average
hammer
blow
482-28
TOO BRITTLE
Surface
shatters
482-30
Start
1
GRAY
3
GREEN
4
YELLOW
2
BROWN
482-31
Safety Precautions