NEC 0612-20 - Manual (Page 4)

6 7
OPERATION
Using Keyless Chucks
Your cordless tool is equipped with a spindle
lock that allows the chuck to be tightened
with one hand.
Always remove the battery pack or lock the
trigger before inserting or removing bits.
1. To open the chuck jaws, turn the sleeve
in the "OPEN" direction indicated on the
chuck.
When using drill bits, allow the bit to
strike the bottom of the chuck. Center
the bit in the chuck jaws and lift it about
1/16" off of the bottom.
When using screwdriver bits, insert the
bit far enough for the chuck jaws to grip
the hex of the bit.
2. To close the chuck jaws, turn the sleeve
in the "CLOSE" direction indicated on
the chuck. The bit is secure when the
chuck makes a ratcheting sound and the
sleeve can not be rotated any further.
NOTE: A ratcheting sound may be heard
when the chuck is opened or closed. This
noise is part of the locking feature, and
does not indicate a problem with the chuck's
operation.
Fig. 2
Sleeve
Open
Close
The torque specifi cations shown here are
approximate values obtained with a fully
charged battery pack.
Using Clutch
This tool has an adjustable clutch for driving
different types of screws into different materi-
als. When properly adjusted, the clutch will
slip at a preset torque to prevent driving the
screw too deep and to prevent damage to
the screw or tool.
To adjust the clutch, turn the torque selector
collar to one of the twenty positions shown
on the collar. The number must line up with
the arrow on top of the tool.
Fig. 3
Torque selector
collar
Position
numbers
NOTE: Because the above settings are only
a guide, use a piece of scrap material to test
the different clutch positions before driving
screws into the workpiece.
Positions
1 - 5
6 - 10
11 - 15
16 - 20
Drill
Low
High
0 - 10 in. lbs.
12 - 21 in. lbs.
24 - 32 in. lbs.
35 - 44 in. lbs.
280 in. lbs.
80 in. lbs.
0602-20
0 - 10 in. lbs.
12 - 21 in. lbs.
24 - 32 in. lbs.
35 - 44 in. lbs.
390 in. lbs
100 in. lbs.
0612-20
Torque Torque
To lock the trigger, push the control switch
to the center position (Fig. 7). The trigger
will not work while the control switch is in
the center locked position. Always lock the
trigger or remove the battery pack before
performing maintenance, changing acces-
sories, storing the tool and any time the tool
is not in use.
Starting, Stopping & Controlling Speed
1. To start the tool, pull the trigger.
2. To stop the tool, release the trigger
and an electric brake stops the tool
instantly.
All models feature variable speed control. To
vary the speed, increase or decrease pres-
sure on the trigger. The further the trigger is
pulled, the greater the speed.
Drilling
Set the torque selector collar to the drill
position
Place the bit on the work surface and ap-
ply fi rm pressure before starting. Too much
pressure will slow the bit and reduce drilling
effi ciency. Too little pressure will cause the
bit to slide over the work area and dull the
point of the bit.
If the tool begins to stall, reduce pressure
slightly to allow the bit to regain speed. If
the bit binds, reverse the motor to free the
bit from the workpiece.
Fig. 7
Push to
center
position to
lock trigger
For reverse (counterclockwise) rotation,
push in the control switch from the left side
of the tool (Fig. 6). Check direction of rota-
tion before use.
Selecting Speed
Using Control Switch
The control switch may be set to three posi-
tions: forward, reverse and lock. Due to a
lockout mechanism, the control switch can
only be adjusted when the ON/OFF switch
is not depressed. Always allow the motor to
come to a complete stop before using the
control switch.
For forward (clockwise) rotation, push in the
control switch from the right side of the tool
(Fig. 5). Check the direction of rotation
before use.
Fig. 4 High Low
The speed selector is on top of the motor
housing. Allow the tool to come to a complete
stop before changing speeds. See “Ap-
plications” for recommended speeds under
various conditions.
1. For Low speed (up to 400 RPM), push
the speed selector back, displaying the
"1" for low.
2. For High speed (up to 1400 RPM), push
the speed selector forward, displaying
the "2" for high.
Fig. 6
Push in
for forward
Push in
for reverse
Fig. 5
WARNING
To reduce the risk of injury, wear
safety goggles or glasses with side
shields.