This replacement o-ring is a genuine item that is supplied by original equipment manufacturer for Porter Cable nailers. The purpose of this o-ring is to provide an air-tight seal for the head valve. Over time rubber material may shrink, become brittle and crack eventually requiring replacement. Please note this high quality item is sold individually.
Removed the four allen head screws from the cylinder cap and removed it
Removed the cylinder and cleaned the inside of the gun
Installed all of the o-rings, piston stop and gasket
Oiled the insides of the gun
Replaced the cylinder cap
Removed the cylinder cap assembly to access the internal parts. Found that the piston stop was destroyed. Cleaned the cylinder and all O-rings. Replaced the piston stop part # 886113. Cleaned and lubricated the O-rings. Reassembled the unit and tested. Nails were driven in normally. Very helpful that a diagram was available to show how th
... Read moreis unit was assembled on this web site.
Disassembled the trigger and then removed the trigger valve from the body of the gun using a socket. I replaced all of the O-rings in the trigger area and lubricated them with the oil that comes with the gun. I then reassembled the valve and screwed it back into the gun body. I reassembled the trigger making sure that the safety worked
... Read moreas it is designed to. The gun worked properly after the repair and continues to at this point. I am satisfied that the O-rings were the cause of the problem.
Removed the four screws from the cylinder head and removed it
Removed and replaced the worn o-rings
Cleaned and oiled the inside of the gun
Installed the cylinder head
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Driver would not return. Upon examination, the plastic stop had completely deteriorated.
1) Remove from air source
2) Unscrew four allen bolts on top of nailer
3) Remove top and internal parts that come out when top is removed. Note the order and orientation of the parts.
4) Lube and replace O rings
5) Reassemble in reverse order.
6) Evenly tighten allen screws
7) Reconnect air and ch
... Read moreeck operation at minimum air pressure prescribed on feeder
8) Get back to work
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Model Cross Reference
This part works with the following models:
ERP Number: ERP18987531
Manufacturer Part Number: 886085
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
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