Lubrication
Your machine has been lubricated at the factory with sufficient lubricant to last for approximately one year's operation time. To add lubricant it is necessary to dismantle the tool. This operation should always be handled by the nearest Porter-Cable Authorized Service Center. All repairs and servicing made by these centers are fully guaranteed against defective materials and workmanship.
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.