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Product Description
?This is a genuine item that is supplied by the original equipment manufacturer for use with Porter Cable nailers. It provides a high-quality replacement for a worn or a missing seal that was installed on a new unit. To ensure the exact location and the correct installation, refer to the diagrams of your model. Keep in mind, this part is made of durable rubber material and is sold as an individual component. You will need an Allen wrench to remove and reattach the head cap in order to perform this repair.
Frequently Purchased Together
?Troubleshooting
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- Nailer
Customer Part Reviews
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Customer Repair Instructions
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
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Worn seals and o-rings
ronald from brunswick, Georgia
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 15 - 30 mins
Removed and replaced the worn parts listed
Cleaned the inside of the gun and oiled it
Screwed the top cover back on
Tested it, works like new
Finish nailer wouldn\'t nail
Cary from Cedartown, Georgia
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 904750
Air blowing out of top of nail gun
Steve from Hawai, Hawaii
Compressed air was blowing through the top
Vincent from San Diego, California
2. Removed old collar and seal.
3. Replaced with new collar and seal.
4. Replaced top of head.
5. Test fired.
6. Went to work
Leaking air, would not work
Louis from Pittsgrove, New Jersey
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Nutdriver, Pliers, Screw drivers, Wrench set
2. Found problem, broken seal, and collar causing nail gun to leak air and not work.
3. Clean entire nail gun, replace broken seal and collar.
4. Lubricated the inside of nail gun and put it together.
5. Put a protective cover on air disconnect to keep dirt out when not in use.
... Read more />6. Suggested to a user, lubricate with a few drops of oil for nail guns and put the protective cover on when not in use.
7. Gun fires well.
Blowing air out to[
Steve from Hawi, Hawaii
Air bypassing out top vent
Jonathan from Costa Mesa, California
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Pliers
- Parts Used:
- 904750
2. Used needle nose pliers to pull out scattered pieces of old seal.
3. Lubed new seal with air tool oil, inserted it in place.
4. Replaced top housing, tightened Allen screws, gun was as good as new.
Would not build up pressure. Air just leaked out of the discharge port.
Larry from CLIO, Michigan
- Difficulty Level:
- Easy
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Socket set, Wrench set
- Parts Used:
- 904750
2. Removed 4 Allen head screws
3. Removed top of air chamber.
4. Cleaned out the pieces of seal.
5. Wiped the barrel with Vaseline to make seal slide in without marking it.
6. Put the air chamber back on and 4 screws.
7. Replaced the discharge cover.
Air leak. Nailer inoperative
Timothy from VIRGINIA BEACH, Virginia
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Pliers, Screw drivers
Removed broken seal and o-ring
Cleaned all debris
Oiled parts and sealing surface
Installed new parts
Placed back on
Test fired nailgun
Success
air Venting out top of gun
JASON from JACKSONVILLE, Florida
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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.