Maintenance; Brush Tube Clamp; Brush Assembly; Brake - Craftsman 315.279620 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.
_i 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
often 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.
CLEANING DUST BAG ASSEMBLY
See Figure 8.
For more efficient operation, empty dust bag when no
more than half full. This will permit the air to flow through
the bag better.
To Empty Dust Bag:
• Unplug the sander.
• Remove dust bag from sander and shake out dust.
• For a more thorough cleaning of the dust bag, remove
dust bag from frame, and shake out dust.
• Replace dust bag over frame then install dust bag on
sander.
DUSTBAG
FRAME
DUSTBAG
ASSEMBLY
Fig. 8
BRUSH REPLACEMENT
See Figure 9.
• Unplug your sander.
• Remove screws (3) from top cover of sander.
• Remove top cover.
• Remove clamp screws (2).
• Remove brush tube clamps (2).
• Disconnect red and black lead terminals from brush
tubes.
• Remove brush assemblies (2).
• Check for wear. Replace both brush assemblies when
either has less than 1/4 in. length of carbon remaining.
Do not replace one side without replacing the other.
• Reassemble using new brush assemblies. Make sure
curvature of brush matches curvature of motor and that
brush moves freely in brush tube.
• Reassemble by reversing the steps listed above.
• Tighten all screws securely. Do not overtighten.
CLAMP
SCREWS
BLACK
LEAD
BRUSH
ASSEMBLY
BRUSH
ASSEMBLY
Fig. 9
12