Craftsman 315.279940 - Manual (Page 9)

OPERATION
REVERSIBLE
See
Figure 5.
This tool has the feature of being reversible. The direction
of rotation is controlled by a selector located above the
switch trigger. With the drill held in normal operating
position, the direction of rotation selector should be
positioned to the left of the switch for drilling. The drilling
direction is reversed when the selector is to the right of
the switch. When the selector is in center position, the
switch trigger is locked.
^ CAUTION: To prevent gear damage, always allow
chuck to come to a complete stop before changing
the direction of rotation or the two speed gear train
(hi-lo).
To stop, release switch trigger and allow the chuck to
come to a complete stop.
A WARNING: Your drill should never be connected to
power supply when you are assembling parts,
making adjustments, installing or removing drill bits,
cleaning, or when not in use. Disconnecting your drill
will prevent accidental starting that could cause
serious personal injury.
KEYLESS CHUCK
See Figure 6.
A keyless chuck has been provided with your drill to allow
for easy installation and removal of bits. As the name
implies, you can hand tighten or release drill bits in the
chuck jaws. Arrows on the chuck indicate which direction
to rotate the chuck sleeve in order to LOCK (tighten) or
UNLOCK (release) the chuck jaws. Loosen the chuck
sleeve by rotating it counterclockwise with one hand.
Insert drill bit straight into the chuck the full length of the
jaws, and tighten securely by rotating the chuck sleeve in
clockwise direction.
UNLOCK
(Release)
^ WARNING: Do not hold chuck sleeve with one
hand and use power of the drill to tighten chuck jaws
on drill bit. Chuck sleeve could slip in your hand or
your hand could slip and come in contact with
rotating drill bit. This could cause an accident
resulting in serious personal injury.
ADJUSTABLE TORQUE CLUTCH
Your drill is equipped with an adjustable torque clutch for
driving different types of screws into different materials.
The proper setting depends on the type of material and
the size of screw you are using.
TO ADJUST TORQUE
■ identify the twenty four torque indicator settings
located on the front of your drill. See
Figure
7.
■ Rotate adjusting ring to the desired setting.
• 1 - 4 For driving small screws.
• 5 - 8 For driving screws into soft
material.
• 9 - 1 2 For driving screws into soft and
hard materials.
• 1 3 - 1 6 For driving screws in hard wood.
• 1 7 - 2 0 For driving large screws.
* 21 - For heavy drilling.
TO DECREASE
TORQUE
ADJUSTING
RING
TO INCREASE
TORQUE Fig. 7
Note: Remember the two-speed feature (HI-LO) when
setting torque. The amount of torque wit! vary depending
on which speed setting you have your drill-driver.
Switching to LO speed will increase torque. Switching to
HI speed will decrease torque.