DeWalt DCN920 - Page 13

11
ENGLISH
Stall Release (Fig. A)
If the nailer is used in rigorous application where all available
energy in the motor is used to drive a fastener, the tool
may stall. The driver blade did not complete the drive cycle
and the jam/stall LED indicator
5
will flash. Rotate the stall
release lever
6
on the tool and the mechanism will release.
If the driver blade does not automatically return to the home
position, proceed to Clearing a Jammed Nail. If the unit
continues to stall please review the mode selection, material
and fastener length to be sure that it is not too rigorous
anapplication.
LED Indicator (Fig. A)
Your nailer is equipped with an LED indicator light
5
to alert
you of a jam/stall. Also refer to the Troubleshooting Guide
for furtherinstruction.
JAM/STALL CONDITION
Rotate the stall release lever to
release. Refer to StallRelease.
No‑Mar Tip (Fig. A)
When using this tool on materials that you do not want to
mark, such as wood cladding, use the plastic no‑mar tip
13
over the contact trip
3
.
NOTE: For maximum depth of drive, especially with long
nails, the no‑mar tip should beremoved.
Using the Trigger Lock‑Off (Fig. A)
Each DeWALT nailer is equipped with a trigger lock‑off
2
which when pushed to the right as shown in Fig.A,
prevents the tool from firing a nail by locking the trigger and
bypassing power to themotor.
When the trigger lock‑off
2
is pressed to the left, the tool
will be fully operational. The trigger lock‑off
2
should always
be locked off whenever any adjustments are made or when
tool is not in immediateuse.
2. Release the trigger safety lock‑off
2
.
3. To drive a single nail, operate the tool as described for
sequential action:
a. Push the contact trip
3
against the worksurface.
b. Pull the trigger switch
1
to actuate the tool. Each
trigger pull with the contact trip pushed against the
work surface will drive onenail.
4. To drive several nails, depress and hold the trigger
switch
1
, and then push the contact trip
3
repeatedly
against the worksurface.

WARNING: Do not keep the trigger depressed when
the tool is not in use. Keep the trigger safety lock‑off
2
in the locked position to prevent accidental actuation
when the tool is not inuse.
5. When changing between sequential and bump modes,
it may be necessary to adjust the driving depth. Refer to
Adjusting the Driving Depth forinstructions.
Actuating The Tool (Fig. A)
The tool can be operated using one of two modes:
Sequential Action Mode
The sequential action mode is used for intermittent nailing when
very careful and accurate placement is desired. It also offers the
maximum delivery of power for driving the longestnails.
1. Using the mode selector switch
9
, select the sequential
action mode ( or .
2. Release the trigger safety lock‑off
2
.
3. Push the contact trip
3
against the worksurface.
4. Pull the trigger switch
1
to actuate thetool.
5. Release the trigger and raise the nailer from the worksurface.
6. Repeat steps 3–5 to actuate the nextnail.
Contact Trip Mode
Contact trip mode (also known as bump mode) is used for
rapid nailing on flat, stationary surfaces and typically most
effective for application driving shorternails.
1. Using the mode selector switch
9
, select the bump
action mode ( .
Running in the Tool
Please note that this tool requires a run‑in period before it
operates with full power due to parts which need to mesh or
wear in together. It may be that the tool does not drive long
nails flush consistently during thisperiod.
Preparing The Tool (Fig. A)
1. Remove the battery pack
14
from the tool and ensure
the tool is lockedoff.
2. Remove all nails from the magazine
7
.
3. Check if the contact trip
3
can movefreely.
4. Reload the nails to themagazine.
5. Insert batterypack.

WARNING: Do not use the tool if the contact trip or
nail pusher cannot movefreely.
NOTICE: NEVER spray or in any other way apply
lubricants or cleaning solvents inside the tool. This can
seriously affect the life and performance of thetool.
Proper hand position requires one hand on the main
handle
16
as shown in Fig. K.
Proper Hand Position (Fig. K)

WARNING: To reduce the risk of serious personal
injury, ALWAYS use proper hand position asshown.

WARNING: To reduce the risk of serious personal
injury, ALWAYS hold securely in anticipation of a
suddenreaction.
and slide it into the handle until the battery pack is firmly
seated in the tool and ensure that it does notdisengage.
2. To remove the battery pack from the tool, press the
battery pack release button
15
and firmly pull the
battery pack out of the tool handle. Insert it into
the charger as described in the charger section of
thismanual.