Porter-Cable 121 Sander User Manual


 
9
NOTE: Check guide adjustment
after changing sanding drums.
EDGE GUIDE OPERATION
When using the edge guide always start
sanding from an edge, so that even
sanding will be produced. Start with the
front feed guide against the material to
be sanded and gradually feed the tool
into the surface to be sanded. Fig. 7.
MAINTENANCE
KEEP TOOL CLEAN
Periodically blow out all air passages with dry compressed air. Remove
buildup of grime resulting from working with green or sappy wood. ALL
PLASTIC PARTS SHOULD BE CLEANED WITH SOFT CLOTHS. NEVER
USE SOLVENTS WHEN CLEANING PLASTIC PARTS.
CAUTION: Wear safety glasses while using compressed air.
LUBRICATION
This tool has been lubricated with a sufficient amount of high grade lubricant
for the life of the unit under normal operating conditions. No further lubrication
is necessary.
BRUSH INSPECTION
At approximately 100 hours of use, take or send your tool to your nearest
Authorized Porter-Cable Service Station to be thoroughly cleaned and
inspected; worn parts replaced, when necessary; relubricated with fresh
lubricant, if required; reassembled with new brushes; and performance tested.
Any loss of power before the above maintenance check may indicate the need
for immediate servicing of your tool. DO NOT CONTINUE TO OPERATE
TOOL UNDER THIS CONDITION. If proper operating voltage is present,
return your tool to the Service Station for immediate service.
FAILURE TO START
Should your tool fail to start, check to make sure the prongs on the cord plug
are making good contact in the outlet. Also, check for blown fuses or open
circuit breakers in the line.
Fig. 7
899604 - 03-08-02.qxd 3/18/02 9:12 AM Page 9