20 Most Recent Hitachi NR83A2S Framing Nailer, Full Head, Plastic Strip Collation - Page 3 Questions & Answers

If its constant leaking inside the nailer (not between cap and body to outside feeling an airstream in front or on one side )then there is an problem between top seals VALVE and seals o-rings on top of the piston cilinder the parts on the top of the cilinder Seals and in the top in high priority must all be replaced because of the building up heat overtime the gaskets seals and o-rings are getting hot and hardened out over time there are only separate parts selled one by one to get I have not seen hitachi gasket/o-ring kits for nailers there where only complete kits for the older range of demolition hammers , but in the new models not anymore outside the States m,aybe but in Europe not. replacing the piston bumper could sometimes help extra because of the little height difference of the cillinder . If leaking between cap and body with a palpable airstream and before the seal was closed tight , retapping the treaths some greater in the magnesium body and place helicoils inside it could be bad treath in one of them , it must put firmly fixed that will not fasten enough that was with the Brand Dutack Pro a high priority problem for a few years ago exact the same a few years now its modificated and that problem is gone. Hitachi NR83A 3 1 4 34 Full Head Nailer Parts

how old are the batteries. how old is the charger. if one or the other is too old or defective, the bad part will "fail safe"the system. shut down so it doesnt explode or burn if it does it with multiple batteries its probably the charger.be sure to check your electrical source too. bad outlet?? be careful these batts can be dangerous. ,

yes its good one.

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Take it back, fool with and you loose the warranty.

Disassemble the feeder mech and clean it... the grit in the cement dust will start to keep the parts from moving freely

You have an "O" seal leaking in there somewhere.

gas pattern valve ?

YES always replace the parts and keep safety for all if in doubt clean regulary the cilinder internally because its very thin These cylinders break easily if something is faltering. https://devs.hitachi-koki.co.jp/ois/explodedDiagram.html?type=svg&modelName=NT+65GS&newwindow=true

NV65AD3 or that kind of ? NV90AB2 on the biggest transparant plastic part that will fitt on the upper part and the squill will fitting in. with a well-fitting pipe wrench that fits just in the rounding so you can control it somewhat fix the upper part in a bench vise then push with the pipe wrench around 20 mm or maybe some bigger it to its place and with both hands you can push it on place, a plastic hammer is not allways necessary .

Please have your battery tested Matthew at the following link. Batteries Plus Bulbs and Battery Store Find Battery for laptop auto cell...

Bad trigger switch(circuit board)

Sounds like a bent nose. It's been dropped

could be in need of an internal adjustment to stop the hammer from hitting the end plate ( travelling to far) talk with a tool repair shop and see if there is something that can be done contact a a hitachi service agent for advice go google and type in--- repair manual for Hitachi nail gun-- and see if there is a manual in pdf version that you can download