Craftsman 315.271410 Owner's Manual page 6

318 inch industrial electric drill variable speed adjustable-reversible double insulated
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OPERATION
VARIABLE
SPEED
S6e Figure 4.
Your ddll has avadable speed control selector designed to
allow operator control and adjustment of speed and torque
limits. The speed and torque of your ddl] can be increased or
decreased by rotating the variable speed control selector in
the direction of the arrows shown in figure 4.
NOTE: Hold your dbll in normal operating position and turn
the variable speed control selector clockwise to increase (+)
the speed and torque of your drill. Turn counterclockwise to
decrease (-) the speed and torque of your drill.
If you desire to lock the switch on at a given speed, depress
the switch trigger, push in and hold the lock-on button, and
release the switch tdgger. Next. adjust the variable speed
control selector until the desired speed is roached.
NOTE: IF THE VARIABLE SPEED CONTROL SELECTOR
IS FULLY TURNED IN THE COUNTERCLOCKWISE
DI-
RECTION (ZERO SEI"FING) YOUR DRILL MAY NOT RUN.
IF YOU DESIRE NOT TO USE THE VARIABLE SPEED
CONTROL SELECTOR, TURN IT IN THE FULL CLOCK-
WISE DIRECTION. THIS WILL ALLOW THE SPEED OF
YOUR DRILL TO BE FULLY CONTROLLED
BY THE
AMOUNT OF SWITCH TRIGGER DEPRESSION.
Avoid running your drill at lowspeeds 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 he used in determining correct
speed for vadous applications:
LOW speed is ideal when minimum speed and power is
required. For example: starting holes without center punch-
ing,driving screws, mixing paint, and drilling in ceramics.
MEDIUM speed is suitable for drillinghard metals, plastics,
and ]arnloates.
HIGH speed produces best results when maximum power is
required. For example: drilling in wood; solt metals such as
aluminum, brass, and copper; and when using ditving acces-
sodes.
VARIABLE SPEED
CONTROL SELECTOR
TO DECREASE SPEED (-)
TO INCREASE SPEED (+)
Fig. 4
EXTENSION
CORDS
The use of any extension cord willcause some loss of power.
TO keep the loss to a minimum and to prevent tool overheat-
ing, follow the recommended cord sizes on the chart below.
When tool is used outdoors, use only extension cords suit-
able for outdoor use and so marked. Extension cords are
available at Sears Retail Stoles.
Extension Cord Length
Wire Size A.W.G.
0-25 Feet
18
25-100 Feet
16
BELT
CLIP
See Figure 5.
For added convenience, a beltclip has been packed with your
drill. It fits on the gear housing as shown in figure 5.
TO INSTALL
See Figure 5+
1, Align tabs on beit clip with slots in gear housing,
2,
Insert tha truss heed screw provided throughbelt clip and
into threaded hole in gear housing.
3. Tighten screw securely.
GEAR HOUSING
SLOTS
TRUSS HEAD SCREW
TABS
Fig. 5
Page 6

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