Question about Makita AN901 Coil Nailers

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I can't get the Makita AN901 to fire nails consistently

We have taken delivery of two AN901 coil nails and are using them with a 2.5" annular ring shank grade 316 stainless steel nail. We can not get the gun to fire the nails in consistently.

In essence the gun fires the first nail in more or less to the correct depth then the next few nails are only part fired home, in some cases it will not fire a nail and the piston comes out and strikes the wood. When the nail is fired in the piston leaves a mark in the board, occasionally the wood is also splitting when the nail is fired fully in.

Any help or advice would be much appreciated.



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  • zmq78 Nov 24, 2008

    We have changed the firing mode to Bump (single) This had no effect.

    We also tried various depth settings from 1 to 6 again without success.



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This problem occurs due to the use of wrong type of nails.

Posted on Nov 25, 2008


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Have you adjusted or changed the firing mode to Sequential or Bump ?

Posted on Nov 24, 2008

  • Lee Hodgson
    Lee Hodgson Nov 24, 2008

    i take it you have the user manual, but if you don't get it free from here:


  • Lee Hodgson
    Lee Hodgson Nov 24, 2008

    try altering the PSI i know it operates at 65 to 120 psi, also are you using the right nails?
    these are the nails it supports, standard 1-3/4" to 3-1/2" coil framing nails




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