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Mastercraft coil roofing nailer leaking air at head

Nailer leaks air at hammer head all the time

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

  • 7 Answers

SOURCE: constant air leak

Sounds like you need a repair kit or take to a tool company that installs the kit.

Posted on Jun 10, 2009

  • 1383 Answers

SOURCE: my nailer leaks air out the back

Hitachi nailers are built on very close tolerences. Dirt /grit will prevent cylinder from resetting causing air to leak out of top of gun. You can force a reset by striking the gun head first against a rubber mat. Only one or two hits because you could damage the head. If the gun does not reset you will have to take apart and clean out grit and replace orings as needed. Good Luck and post again if you have other questions.

Posted on Mar 20, 2010

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Order parts from www.toolpartsdirect.com

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Hi, i got a hitachi nv45ab and My nailer leaks air out the back


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1 Answer

My nailer leaks air out the back my,roofing nailer wont hold any air


Hitachi nailers are built on very close tolerences. Dirt /grit will prevent cylinder from resetting causing air to leak out of top of gun. You can force a reset by striking the gun head first against a rubber mat. Only one or two hits because you could damage the head. If the gun does not reset you will have to take apart and clean out grit and replace orings as needed. Good Luck and post again if you have other questions.

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1 Answer

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Sounds like you need a repair kit or take to a tool company that installs the kit.

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