DeWalt DFD270 Guide D'utilisation page 14

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Your powder‑accuated fastening tool should be cleaned
after every use and general tool maintenance should be
performed at six month intervals or after firing 5000 loads.
AIl parts should be cleaned with the wire brushes supplied
with your tool kit.
Your D
WALT authorized representative should be asked
e
to assist the first time you disassemble and clean your tool.
If you ever have any trouble reassembling the tool, or have
any doubt about worn parts, call your D
service center.
Fig. W
17
Disassembling the Tool and Cleaning
To maintain this tool in good working condition, it is
necessary to disassemble and clean the entire tool if dirt
is evident in the breech face, or if the tool appears to
lose power.
Prior to cleaning the tool make sure there is no powder
load in the tool. Use caution and do not lose or damage any
tool parts.
1. Remove the single shot nose 
piston 
and bumper 
 15
the Piston and Bumper.
2. Press the barrel assembly release button 
the barrel assembly 
2
3. Remove any dirt buildup on the piston and threads
of the single shot nose or magazine with the flat wire
brush 
17
. Check the condition of the piston for damage
from wear and deformation.
4. Use the small round brush 
buildup from inside the barrel of the single shot nose
or magazine.
5. Use the small round brush 
the two holes 
20
in the barrel assembly.
6. Use the large round brush 
from inside the tool housing 
12
WALT authorized
e
18
or magazine 
,
6
9
as described in Replacing
13
8
and unscrew
to remove it.
to remove any
18
18
to clean any buildup in
19
to clean any buildup
21 
.
Fig. X
20
7. Clean the powder strip guideway 
19
scaper 
22
from the top of the tool.
Fig. Y
22
Reassembly
1. Align the arrow 
arrow 
on the body of the tool and insert the barrel
24
assembly into the tool.
Fig. Z
24
23
2. Rotate the barrel assembly until it locks in place.
3. Follow Steps 4–6 in Replacing the Piston and Bumper
to replace the piston, bumper and single shot nose
or magazine.
4. Upon reassembly of the tool perform the following test.
a. Depress the tool against a flat, test surface and
pull the trigger. The barrel assembly should slide
smoothly inside the tool housing assembly.
b. Squeeze the trigger 
release after the trigger has been pulled.
21
12
by inserting the
on the barrel assembly
23
1
. The firing fastener should
with the
2

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