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We go over how to rebuild a Metabo HPT or Hitachi NV 45AB2 roofing nail gun.
This nail gun will many times leak air, wont sink nails, will skip nails, wont fire or wont feed when they need rebuilt.
These are one of the more complicated roofing nailers out there to rebuild because the entire cylinder moves when they fire. Most other nail guns use a stationary cylinder.
Make sure to follow the process closely, wear eye protection when shooting and make sure the end is pointed away from people and property when plugging in air for the first time after rebuild. Never load a fresh rebuild with nails until tested.
We use Reliability Provin KT-HA-104 to rebuild this. You can also use KT-HA-910 rebuild kit if you need the trigger plastic or additional bumper for the feeder. Most times this is unnecessary.
If you need the feeder spring the part number is 877761 (877-761) ( amzn.to/3Rcpud9 )
If you need the feeder pawl the part number is 883901 (883-901) ( amzn.to/3TfNRco )
These are the same as the Metabo HPT and Hitachi NV45AB2 also. The nailers are also basically the same as the NV45AB nailers and they made a similar NV45AE model for a while also.
You can buy a new replacement nailer at amzn.to/482utVb
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#nailgun #smallenginerepair #hitachi #metabohpt #individualizedrepair #smallbusiness #diymaintenance
About Us:
My name is Martin. I have been repairing tools and small engines for almost 20 years. We operate a small engine repair shop in Illinois. We service / repair Briggs & Stratton, Kohler, Kawasaki, John Deere, Cub Cadet, Toro Tecumseh, Loncin, Honda, Craftsman, Husqvarna, MTD, Troy Bilt, Simplicity, John Deere, Exmark, LCT, Generac and many more brands. We work on riding mowers, walk behind mowers, snow blowers, zero turns, generators, pressure washers and much more. We normally repair about 3,000 pieces of equipment every year and look at many more that are beyond an affordable repair. Hopefully our videos will save you some money and give you the information you need to work on your own equipment or figure out the issue at hand.
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Please be careful when repairing any piece of equipment and follow all possible safety measures. This video is for entertainment purposes only.
17 янв 2023
