Question about Hitachi NV45AB2 Roofing Coil Nailer
I have the cover off and the piston and cylinder plate off but cannot budge the cylinder. Should you be able to remove the cylinder by hand?
The cylinder is held in place very tightly by o-rings to keep a good air seal between the top and bottom half. Sometimes you have to apply some gentle prying pressure with a screwdriver to loosten it. Be careful as the the cylinder and body are soft metals and can be scratched or bent easily. If prying doesnt' work, turn the gun upside down and hit the egde of the top of the gun, again firmly but not hard enough to deform the head, on your workbench to make the cylinder come out.
Posted on Feb 23, 2012
On the cylinder plate Hitachi has 2 threaded holes - the screws for the head cap conveniently fit into. Thread the bolts in a bit and use a screwdriver to twist the cylinder plate off. Once the plate is off, the cylinder should pop up, if not, hold the gun and strike the body of the tool straight down with a rubber mallet.
Posted on Oct 18, 2013
On an NV45AB the cylinder is actually spring loaded and should move freely up and down (just a small amount of movement) so it sounds as if it's stuck. Be very careful as these cylinders can be easily broken if you try and remove it with a set of pliers. Since the cylinder sticks out higher then the top of the frame on this model it is a bit tougher to do this but you can try turning the tool over and lightly hitting it against a piece of wood to "knock" it out of the housing. You will only be able to hit the front part of the housing since it sticks up so high. I have a heavy rubber mat in my shop that I use for this purpose but you can't do that with the NV45AB/2 because of the cylinder height issue.
Posted on Mar 06, 2012
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jun 21, 2015 | Stanley Bostitch Coil Framing Nailer
Oct 16, 2012 | Porter Cable RN175 Roofing Coil Nailer
Sep 13, 2011 | Stanley Bostitch FN16250K - 2 16 - Gauge...
Aug 23, 2011 | Itw Devilbiss Tools & Hardware - Others
May 30, 2011 | Dewalt D51850 Heavy Duty 20 Degree Full...
Feb 27, 2011 | Hitachi NR90AD 3 - 1/2'' Clipped Head...
Sep 04, 2010 | Stanley Bostitch F28WWMCN 28° Industrial...
Aug 20, 2010 | Milwaukee Tool Milwaukee 7120 - 21 Coil...
Jan 21, 2010 | Hitachi NV45AB2 Roofing Coil Nailer
Apr 12, 2009 | Hitachi NR83A2 2" To 3 1/4" Full Head...
246 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: