Question about Hitachi NR90GC 3 1/2" Gas Powered Clipped Head Framing Nailer
Also what oil would you recommend is used for the o rings? cheers
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Posted on Jan 02, 2017
Does the fan run and the light blink ont he nailer? I have one that I just bought. I put in the wrong type of nails and got one stuck. I had to take the front apart to clear it and now the damm thing wont fire. The green light blinks and the gas cartridge is basically full, even the fan does run after I release the push lever, but no fire???
I wonder if yours is the same as mine did fire for a couple nails first just fine then got jammed...
I will try to charge the battery more.... MAybe like yours it needs a strong charge for the spark...
Posted on Oct 05, 2008
the blade assemblies for the A and A2 are the same.
the pison bumper should not be attached to the driver, if the bumper is moving around inside the gun i suggest checking to make sure it was properly seated when the gun was reassembled. if it was, i suggest ordering a new bumper.
a cracked bumper will usually cause a broken driver.
Posted on Nov 17, 2008
SOURCE: Hitachi NR83A air leak
Most all Hitachi nailers that use the plunger style of firing/safety mech will leak air past plunger (part #877-339) when firing, however should not leak when connected to air or resting. If air is leaking past plunger when connnected to air check following:
Remove head to reveal cylinder plate (part#877-318). Remove plate and check outer oring for nicks or broken. If nicked or broken, replace and problem solved. If in good condition, remove cylinder guide (part #877-310) and check two outer orings for nick /cut. Use caution when removing/installing cylinder guide. It is easy to pinch orings when installing causing air leak at plunger. If orings are in good shape then problem is warped body of gun not allowing outer orings to seal. To check for warped body, use the cylinder plate as a guage by lowering it into the area where the cylinder guide rests. Good Luck with your repair.
Posted on Mar 12, 2009
The NR83a has an adjustment just below the triggering plunger. It is a 6mm hex head bolt with a locking nut. Loosen the nut and adjust screw out several turns and re-test. Make adjustment as necessary. I have seen many of these gun without the locking nut which allows the bolt the adjust itself all the way down. AS parts wear this screw needs to be adjusted. The pushing lever and the plunger are wearing smaller/shorter, that is unless the locking nut was missing. Remove gun from air supply for safety when making adjustments. Good Luck an email if you have other qustion about this gun.
Posted on Apr 27, 2009
Yes, BUT the paslode Round drive nails and known to cause driver jamms due to the excessive paper used in the spacing of the nails.
Posted on Oct 31, 2009
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