Maintenance - Craftsman 315.101140 Operator's Manual

:
WARNING
When servicing, use only identical
Craftsman replacement parts. Use of any other parts
may create a hazard or cause product damage.
:
WARNING
Always wear safety goggles or safety
glasses with side shields during power tool operation
or when blowing dust. If operation is dusty, also wear
a dust mask.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use.
Use clean cloths to remove dirt, dust, oil, grease, etc.
:
WARNING
Do not at any time let brake fluids,
gasoline, petroleum-based products, penetrating
oils, etc., come in contact with plastic parts. Chemi-
cals can damage, weaken or destroy plastic which
may result in serious personal injury.
Electric tools used on fiberglass material, wallboard,
spackling compounds, or plaster are subject to accel-
erated wear and possible premature failure because the
fiberglass chips and grindings are highly abrasive to bear-
ings, brushes, commutators, etc. Consequently, we do not
recommended using this tool for extended work on these
types of materials. However, if you do work with any of
these materials, it is extremely important to clean the tool
using compressed air.
LUBRICATION
All of the bearings in this tool are lubricated with a suffi-
cient amount of high grade lubricant for the life of the unit
under normal operating conditions. Therefore, no further
lubrication is required.
Only the parts shown on the parts list are intended to
be repaired or replaced by the customer. All other parts
should be replaced at a Sears Service Center.
CHUCK REMOVAL
See Figures 6 - 7.
To remove the chuck:
n Unplug the drill.
n Lock the switch trigger by placing the direction of rota-
tion selector in center position.
n Insert a 5/16 in. or larger hex key into the chuck of the
drill and tighten the chuck jaws securely.
n Tap the hex key sharply with a mallet in a clockwise
direction. This will loosen the screw in the chuck for
easy removal.

MAINTENANCE

CHUCK JAWS
HEX KEY
TO RETIGHTEN A LOOSE CHUCK
The chuck may become loose on the spindle and develop
a wobble.
To tighten the chuck:
n Unplug the drill.
n Open the chuck jaws.
n Insert the hex key into chuck and tighten chuck jaws
securely. Tap the hex key sharply with a mallet in a
clockwise direction.
n This will tighten the chuck on the spindle.
n Open the chuck jaws and remove the hex key.
13
MALLET
KEYLESS
CHUCK
Fig. 6
Fig. 7