Craftsman 315.279940 - Manual (Page 8)

OPERATION
SWITCH
See Figure 3.
To turn your drill ON, depress the switch trigger. Release
switch trigger to turn your drill OFF.
FORWARD/REVERSE
TO INCREASE SPEED,
DEPRESS SWITCH TRIGGER Fig. 3
LOCK-ON BUTTON
See Figure 3.
Your drill is equipped with a lock-on feature which is
convenient when continuous drilling for extended periods
of time is required. To lock-on, depress the switch trigger,
push in and hold the lock-on button located on the side of
the handle, then release switch trigger. Release lock-on
button and your drill will continue running.
To release the lock, depress the switch trigger and
release.
If you have the lock-on feature engaged during use and
your drill becomes disconnected from power supply,
disengage the lock-on feature immediately.
VARIABLE SPEED
See Figure 3.
Your drill has a variable speed switch designed to allow
operator control of speed and torque limits. The speed
and torque of your drill can be increased by depressing
the switch trigger.
Note; Depress switch trigger all the way for maximum ■
speed and torque of your drill. Depress switch trigger only
part of the way for less speed and torque.
Avoid running your drill at low speeds for extended
periods of time. Running at low speeds under constant
usage may cause your drill to become overheated. If this
occurs, cool your drill by running it without a load and at
full speed.
The following guidelines may be used in determining
correct speed for various applications:
■ Low speed is ideal when minimum speed and power is
required. For example, starting holes without center
punching, driving screws, mixing paint, and drilling in
ceramics.
■ Medium speed is suitable for drilling hard metals,
plastics, and laminates.
■ High speed produces best results when maximum
power is required. For example, drilling in wood; soft
metals such as aluminum, brass, and copper, and
when using driving accessories.
TWO SPEED GEAR TRAIN
See Figure 4.
Your drill has a two-speed gear train designed for drilling
or driving at LO {1) or HI (2) speeds. A slide switch is
located on top of your drill to select either LO (1) or HI (2)
speed. When using drill in the LO (1) speed range, speed
will decrease and unit will have more power and torque.
When using drill in the HI (2) speed range, speed will
increase and unit will have less power and torque. Use
LO (1) speed for high power and torque applications and
HI (2) speed for fast drilling or driving applications.
TWO SPEED
SWITCH LOCK
See Figure 5.
The switch trigger can be locked in the OFF position. This
feature can be used to prevent the possibility of accidental
starting when not in use. To lock switch trigger, place the
direction of rotation selector in center position.
SELECTOR