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Craftsman 973.271970 Owner's Manual page 10

Variable speed / reversible industrial 3/8 in. cordless drill-driver

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INSTALLING
BITS
See Figure 8
m
Lock the switch trigger by placing the direction of
rotation selector in center position,, See Figure 2
[]
Open or close chuck jaws to a point where the
opening is slightly larger than the bit size you
intend to use Also, raise the front of your drill
slightly to keep the bit from failing out of the chuck
jaws,
[]
Insert drill bit into chuck the futt length of the jaws
as shown in figure 8
[]
Tighten the chuck jaws on drill bit
CHUCKBODY
DRILLBIT
CHUCKCOLLAR
RIGHT
Fig° 8
[]
To tighten the chuck jaws on drill bit; grasp and
hold the collar of the chuck with one hand, while
rotating the chuck body with your other hand.
Note: Rotate the chuck body in the direction of
the arrow marked LOCK to tighten chuck jaw&
DO NOT use a wrench to tighten or' loosen the
chuck jaws°
,_,
WARNING:
Do not insert drill bit into chuck jaws and tighten as
shown in figure 9, This coufd cause drill bit to be
thrown from drill resulting in possible serious personal
injury or damage to the chuck.
REMOVING
BITS
See Figure 8
[]
Lock the switch trigger by placing the direction of
rotation selector in center position See Figure 2.
[]
Loosen the chuck jaws from drill bit,
[]
To loosen: grasp and hold the celiar of the chuck
with one hand, while rotating chuck body with your
other hand° Note: Rotate chuck body in the
direction of the arrow marked UNLOCK to loosen
chuck jaws. DO NOT use a wrench to tighten or
loosen the chuck jaws,
[]
Remove drill bit from chuck jaws
ADJUSTABLE
TORQUE
CLUTCH
Your drill is equipped with an adjustable torque clutch
for' driving different types of screws into different mate-
rials The proper setting depends on the type of rnate-
rial 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 10
[]
Rotate adjusting ring to the desired setting.,
.
1 - 4
For driving small screws,
= 5 - 8
For driving screws into soft
material
= 9 - 12
For driving screws into soft and hard
materials
.13 - 16
For driving screws in hard wood,.
- 17- 20
For driving large screws
.21 - 24
For heavy drilling,
TO DECREASE
TORQUE
Fig. 9
Page 10
TOINCREASE
TORQUE
ADJUSTING
RING
Fig. 10

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