Porter-Cable 334 Sander User Manual


 
11
CHANGING BACK-UP PAD
1. CAUTION: DISCONNECT TOOL FROM POWER SOURCE.
2. Grasp pad with hand and use phillips screwdriver to remove three pad
retaining screws, Fig. 9 (turn screws counterclockwise to remove).
3. Lift pad from sander.
4. Reverse procedure to install new pad. Tighten pad retaining screws 25 to
30 in-lbs.
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 a soft damp cloth. NEVER use solvents to clean
plastic parts.
CAUTION: Wear safety glasses while using compressed air.
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.
BRUSH INSPECTION AND LUBRICATION
For your continued safety and electrical protection, brush inspection and
replacement on this tool should ONLY be performed by an AUTHORIZED
PORTER-CABLE SERVICE STATION or a PORTER-CABLE/DELTA FACTORY
SERVICE CENTER.
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. Have worn parts replaced and lubricate with fresh lubricant. Have
new brushes installed, and test the tool for performance.
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.
Fig. 9
PAD
RETAINING
SCREWS
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