Desa 496 - Manual (Page 6)

6
105635
TOO HARD
Point
flattens
482-29
TOO BRITTLE
Surface
shatters
482-30
TOO SOFT
Sinks in
with
average
hammer
blow
482-28
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?
G 018
G 018
G 018
G 018
Safety Precautions
7. An operator taking medication should take extra precautions while handling the
tool. Never drink alcoholic beverages or take medications which impair your
vision, balance or judgement before using a powder actuated tool.
KNOW YOUR FASTENING BASE MATERIAL
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?
?
?
482-26
CENTER
PUNCH TEST
482-27
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 fastener impression and
the fastener point is not blunted. Always start with the lowest power load
(Green-Level 3) and proceeding with the order shown in the lower right-hand
figure above. Operators and bystanders must always wear goggles and ear
protection which meet or exceed the accepted standards for adequate protec-
tion in your country. In the USA, refer to ANSI standards. In Canada, refer to
CSA standards.
Start
YELLOW
POWER
LEVEL 4
GREEN
POWER
LEVEL 3
RED
POWER
LEVEL 5