Maintenance - Craftsman 315.270850 Operator's Manual

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WARNING:
When servicing, use only identical
Craftsman replacement parts. Use of any other part
may create a hazard or cause product damage.
WARNING:
Always wear safety goggles or safety
glasses with side shields when using compressed air
to clean tools. If the operation is dusty, also wear a
dust mask.
WARNING:
To avoid serious personal injury, always
remove the battery pack from the tool when cleaning
or performing any maintenance.
OPERATION
n When drilling hard, smooth surfaces, use a center
punch to mark the desired hole location. This will pre-
vent the drill bit from slipping off-center as the hole is
started.
n When drilling metals, use a light oil on the drill bit to
keep it from overheating. The oil will prolong the life of
the bit and increase the drilling action.
n If the bit jams in the workpiece or if the drill stalls,
stop the tool immediately. Remove the bit from the
workpiece and determine the reason for jamming.
NOTE: This drill has an electric brake. When the switch
trigger is released, the chuck stops turning. When the
brake is functioning properly, sparks will be visible through
the vent slots on the housing. This is normal and is the
action of the brake.
Fig. 14

MAINTENANCE

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:
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.
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.
15
Do not at any time let brake fluids,