DeWalt DCN891 Guide D'utilisation page 13

Fig. H
3
NOTICE: Driving pins into soft materials at high
power settings will cause excessive wear to your
tool and may result in early failures.
Power
Application
Setting
Fastening to Low Strength Concrete/
1
Masonry (<4000 psi)
Fastening to High Strength Concrete
2
(>4000 psi)
Fastening to High Strength Concrete
(>4000 psi)
3
Fastening to structural steel;
Fastening through plywood, insulation,
or fixture

WARNING: Pins must be driven straight into the
material. Do not tilt nailer while driving fasteners.
Refer to Fig. I. Pin retention values improve when the
tool is fired perpendicular to the material.
Fig. I
Actuating the Tool (Fig. A)

WARNING: Always wear proper eye [ANSI Z87.1
(CAN/CSA Z94.3)] and ANSI S12.6 (S3.19) hearing
protection when operating tool.
The motor rotation speed is automatically restored after
driving a pin to allow fast consecutive nailing.
1. Release the trigger lock-off
2. Push the contact trip 6 against the work surface.
3. Pull the trigger switch 1
Typical Pin Length
3/4" to 1-1/4" typ.
3/4" to 1" typ.
1/2" to 2-1/4" typ.
2 .
to actuate the tool.
4. Release the trigger and raise the nailer from the
work surface.
nOTE: The tool motor returns to full speed
automatically without the contact trip
being depressed.
5. Repeat steps 2–4 to actuate the next nail.
Pin/Fastener Troubleshooting
Properly driven pin
CONCRETE
Pin does not hold in the concrete.
Cause:
-
-
Action:
-
-
Pin does not drive deep enough.
Cause:
-
-
Action:
-
-
Pin drives too deep.
Cause:
-
-
Action:
-
-
English
6
Over driven pin
Too hard/high
strength concrete.
Hard or large aggregate
in concrete.
Use shorter pin.
Switch to higher
power setting.
Pin too long.
Power setting too low.
Use shorter pin.
Switch to higher
power setting.
Pin too short for application.
Power setting too high.
Use longer pin.
Switch to lower
power setting.
11