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ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can cause injury.
WARNING: Use only D
Inserting and Removing the Battery Pack
from the Tool (Fig. B)
nOTE: Make sure your battery pack
To Install the Battery Pack into the Tool Handle
1. Align the battery pack with the rails inside the tool's
handle (Fig. B).
2. Slide it into the handle until the battery pack is firmly seated
in the tool and ensure that you hear the lock snap into place.
To Remove the Battery Pack from the Tool
1. Press the battery release button
battery pack out of the tool handle.
2. Insert battery pack into the charger as described in the
charger section of this manual.
Fuel Gauge Battery Packs (Fig. B)
Some D
WALT battery packs include a fuel gauge, which
e
consists of three green LED lights that indicate the level of
charge remaining in the battery pack.
To actuate the fuel gauge, press and hold the fuel gauge
button
15
. A combination of the three green LED lights will
illuminate, designating the level of charge left. When the level
of charge in the battery is below the usable limit, the fuel gauge
will not illuminate and the battery will need to be recharged.
nOTE: The fuel gauge is only an indication of the charge left on
the battery pack. It does not indicate tool functionality and is
subject to variation based on product components, temperature
and end-user application.
Anvil (Fig. C)
WARNING: Use only impact accessories. Non‑impact
accessories may break and cause a hazardous condition.
Inspect accessories prior to use to ensure that it con tains
no cracks.
CAUTION: Inspect anvils and hog rings prior to use.
Missing or damaged items should be replaced before use.
Place the switch in the locked off (centre) position or remove
battery pack before changing accessories.
To install an accessory on the hog ring anvil, firmly push
accessory onto the anvil
3
allow the accessory to slide on. After accessory is installed, the
hog ring applies pressure to help provide accessory retention.
To remove an accessory, grasp the accessory and firmly pull
it off.
10
WALT batteries and chargers.
e
5
is fully charged.
5
and firmly pull the
. The hog ring
10
compresses to
Mode Selector (Fig. A, D)
Your tool is equipped with a mode selector
to select one of three speeds or Precision Wrench™ mode. Select
the mode based on the maximum speed/torque needed and
control the speed of the tool using the variable speed trigger
switch
1
.
Precision Wrench™ (Fig. D)
In addition to normal impacting modes, this tool features the
Precision Wrench™ mode which grants the user greater control
in both fastening and loosening applications. When set in
forward, the tool will fasten at 1200 RPM until impact begins.
The tool will then pause for 0.75 seconds before continuing
to impact at a rate of 1890 IPM, providing the user with
greater control and reducing the chance of overtightening or
damaging material.
When set in reverse, the tool will impact at a normal speed and
rate of 1890 IPM. Upon sensing that the fastener has broken
free, the tool will cease to impact and will reduce speed to help
prevent "run-off" of loose hardware.
specifications
Mode
Precision Wrench™ Mode
Low Mode
Medium Mode
High Mode*
*After 4 seconds of impacting, the DCF961 automatically increases power to
aid in loosening stubborn fasteners.
OPERATION
Instructions for Use
WARNING: Always observe the safety instructions and
applicable regulations.
WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can cause injury.
Variable Speed Trigger Switch (Fig. A)
To turn the tool on, squeeze the trigger switch
tool off, release the trigger switch. Your tool is equipped with
a brake. The anvil will stop when the trigger switch is fully
released. The variable speed switch enables you to select the
best speed for a particular application. The more you squeeze
the trigger, the faster the tool will operate. For maximum tool
life, use variable speed only for starting holes or fasteners.
nOTE: Continuous use in variable speed range is not
recommended. It may damage the switch and should
be avoided.
9
which allows you
Application
RPM
Precision Wrench™
0–1200 forward
0–550 reverse
Normal Impacting
0–440 forward
0–1200 reverse
Medium Impacting
0–800 forward
0–1200 reverse
High Speed Impacting 0–1200 forward
0–1200 reverse
1
. To turn the
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