Roofing nailers/Coil nailers maintenance

dhermesc

Well-known Member
I may regret it but I have a roofing project coming up. I have a like new Dewalt coil nailer and I just bought a used Senco nailer that a roofer was selling (he had 3). I brought the Senco home and plugged it into my air compressor and at first it would only blow air out the top vent. Messed around with it and got the plunger retracted and then it would drive a nail but wouldn't feed the next nail. Hosed the feeder area off with PB Blaster and it started feeding fine. Ran about 20 nails through as a test and all appears to be working.


Several questions:
1>What is the best way (or should I even attempt) to clean the external and internal parts of a coil air nailer?
2>What SHOULD I use to lubricate the external parts of the nailer?
3>I have a lot of air tool oil - I know most instruactions say to put a few drops of oil in a nailer after a couple hours of use and before every use. Should I douse the Senco with oil now a blow it through to soak for a month before it sees a lot of use to clean up the internals or am I making an issue that doesn't exist?
4>How much air pressure should I have going to the nailer?
5>What wear parts should I expect to replace on the Senco if it gets a lot of use this summer?


The Senco appears to be in good shape and the guy that had it said it was used quite a bit for one summer and its been sitting in his garage for a year or two. That or he stole it from his employer when no one was looking and has no clue how much its been used. It does seem pretty gritty - life on a roof or riding around in the back of a pickup will do that I guess.

A neighbor across the street was watching me measure and make calculations on the amount of shingles and came running wanting to know if I wanted a job after I did my rental. I don't need a second job but my sons are always looking for sideline stuff. I imagine they might do a couple roofs before they get tired of it or really screw one up (pull the shingles off and have it rain a 6 before it gets recovered)...
 
Your problem is the name Senco on it. They used to make good nailers but not anymore. I threw away the Senco nailers I had. It was costing more to keep them working than they were worth.
 
I personally like Marvel Mystery Oil for my air tools. It sounds as if your nailer is just dirty. Put some oil in the fitting where you hook up the air hose to it. Then shoot a dozen nails and oil it again and leave it set a few days and then shoot another dozen nails and oil it and leave it set again.
 
At work I used a already that would lubricate the internals and get rid of the gummed up air tool oil. Also used a couple drops of good quality air tool oil in the am before use. Eliminated a lot of problems.
 
What was it you used to lubricate the internals and clean up the gummed up oil?


This one is now functioning as it should - but I have a feeling after sitting for so long cleaning the internals would be a good idea - I just don't want to find out I did the opposite of what I should have done.
 
Maintenance, a drop of oil special for air nailers.

I would try to order a rebuilt kit.
Sooner or later you will need it.
 

You mentioned it was gritty dhermesc , that might be half your problem . I once absentmindedly put my Paslode framing gun down onto our sandy black soil , it looked clean enough afterwards but started misbehaving badly .
I removed the nails and sprayed it externally with brake cleaner , a drastic measure but it removed all the gummed oil and sand mixture very well . Be careful of the trigger area and the seals there , most of the impediment to reloading will be in the nail slide and loading spring area as well as the ' hammer' slide .
 
Thank you.

I was looking for something like that. I was afraid to use carb cleaner or brake cleaner for fear of ruining the rubber seals.
 

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