Porter-Cable 6640 Power Screwdriver User Manual


 
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There is a small spring in the end of the power unit spindle shaft. Be
careful not to lose this spring.
Note condition of 3-jaw clutch faces on power unit and screwdriver
mechanism. If they are badly rounded where the angular face meets the top
surface, or appear otherwise worn or faulty, or if the clutch elements are not
securely held in place on their respective shafts by the snap rings, return the
entire tool to your AUTHORIZED PORTER-CABLE SERVICE STATION for
service.
If the jaws are not seriously worn and there are no other apparent faults in the
mechanism, then proceed and be sure that the mechanism and all internal
areas are clean and free of chips or other foreign material and brush a thin
coat of PORTER-CABLE gear lubricant on the clutch elements and
surrounding areas. Reassemble the screwdriver mechanism onto the power
unit. Be sure the spring is on the spindle shaft. NOTE: The housing threads
are left-hand thread.
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 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; 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.
SERVICE AND REPAIRS
All quality tools will eventually require servicing or replacement of parts due
to wear from normal use. These operations, including brush inspection and
replacement, should ONLY be performed by either an AUTHORIZED
PORTER-CABLE SERVICE STATION or a PORTER-CABLE/DELTA SERVICE
CENTER. All repairs made by these agencies are fully guaranteed against
defective material and workmanship. We cannot guarantee repairs made or
attempted by anyone other than these agencies.
Should you have any questions about your tool, feel free to write us at any
time. In any communications, please give all information shown on the
nameplate of your tool (model number, type, serial number, etc.).
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