Porter-Cable 4634, 4630, 4640 instruction manual Keep Tool Clean, Failure to Start, Lubrication

NOTE: The clutch housing is attached to the power unit with left-handthreads. Remove the depth-stop assembly from the clutch housing by pulling it straight off. Remove the clutch housing by turning the clutch housing clockwise.

NOTE: Be careful not to lose the small spring that is in the end of the power unit spindle shaft.

Note the condition of the 3-jaw clutch faces on the 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 no other apparent faults show up in the mechanism, clear the mechanism and all internal areas of chips or other foreign material. Brush a thin coat of PORTER-CABLE gear lubricant on the clutch elements and surrounding areas. Attach the screwdriver mechanism to the power unit. Be sure the spring is in the spindle shaft.

NOTE: The housing threads are left-hand thread.

KEEP TOOL CLEAN

Periodically blow out all air passages with dry compressed air. All plastic parts should be cleaned with a soft damp cloth. NEVER use solvents to clean plastic parts. They could possibly dissolve or otherwise damage the material.

Wear ANSI Z87.1 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.

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 (If applicable)

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 lubricated 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.

12