DeWalt DCN891 - Core Tool Functions; Using the Trigger Lock-off; Loading and Unloading the Tool; Power Setting Summary

ENGLISH
10
tool. This can seriously affect the life and performance
of thetool.
NOTE: The battery pack is not fully charged out of the
carton. Follow instructions outlined (refer to Charging
ABattery).
1. Read the Nailer Safety Warnings section of
thismanual.
2. Wear eye and earprotection.
3. Remove battery fromtool.
4. Ensure magazine is empty of allfastners.
5. Check for smooth and proper operation of contact
trip and pusher assemblies. Do not use tool if either
assembly is not functioning properly. NEVER use
a tool that has the contact trip restrained in the
actuatedposition.
6. Keep tool pointed away from yourself andothers.
7. Insert fully charged batterypack.
Using the Trigger Lock-off (Fig. F)

WARNING: To reduce the risk of serious personal
injury, do not keep trigger depressed when tool is not
in use. Keep the trigger lock-off switch LOCKED (Fig.F)
when the tool is not inuse.

WARNING: To reduce the risk of serious personal
injury, lock off trigger, disconnect battery pack
from tool and remove pins from magazine before
makingadjustments.
Each
DeWALT
nailer is equipped with a trigger lock-off
2
which when pushed to the right as shown in FigureF,
prevents the tool from firing a pin by locking the trigger and
bypassing power to themotor.
Fig. F
2
When the trigger lock-off is pressed to the left, the tool will
be fully operational. The trigger lock-off should always be
locked off whenever any adjustments are made or when
tool is not in immediateuse.
NOTICE: Do not store tool with battery pack installed.
To prevent damage to the pack and to ensure best
battery life, store battery packs out of the tool or
charger in a cool, drylocation.
Loading the Tool (Fig. G)

WARNING: Keep the tool pointed away from yourself
andothers.

WARNING: Never load pins with the contact trip or
triggeractivated.

WARNING: Always remove battery pack before
loading or unloadingpins.

CAUTION: Keep fingers clear of pusher latch track to
preventinjury.

WARNING: The trigger lock-off should always be
engaged whenever any adjustments are made or
when tool is not inuse.

WARNING: Fasteners used to install metal connectors
must meet the requirements of the applicable building
codes and must be installed in compliance with code
requirements and metal connector hardware supplier
specifications. Failure to properly install connectors
may result in structuralfailures.
1. Turn the nailer upsidedown.
2. Slide the spring-loaded pusher latch
15
to the base of
the magazine to lock it intoplace.
Fig. G
15
3. Drop pin strips into the loading slot of the magazine,
making sure the pin heads align correctly with the slot
opening. (Refer to Pin Specifications to determine
compatible size.)
4. Keeping fingers clear of the track, close the magazine by
releasing the pusher latch. Carefully allow the latch to
slide forward and engage the pinstrip.
Unloading the Tool

WARNING: The trigger lock-off should always be
locked off whenever any adjustments are made or
when tool is not inuse.
1. Slide the spring-loaded pusher latch to the base of the
magazine to lock it intoplace.
2. Tip the tool up until the fastener strip slides freely out of
themagazine.
3. With battery removed, check the nosepiece to verify
there are no pinsremaining.
NOTE: The tool is equipped with a magnet in the nose
area for improved tool performance. When unloading,
always verify that the small sticks of pins are not held to the
magnetized nosepiece.
Power Setting Summary (Fig. H, I)
This nailer is equipped with a power selection switch
3
to
adjust the tool when driving into differentmaterials.
Power setting 1: Softer materials (low strength concrete/
cinder block)
Power setting 2: Medium hardness materials (High strength
concrete)
Power setting 3: Hard materials (Structural Steel)
In the event pins are not driving to depth in power setting1,
you may have to switch to power 2 or 3 for additional
drivingpower.