The piston driver on my tool does not retract like it should when bump firing the tool. It hangs up until I release the trigger, then retracts as norma. It acts like a sequential fire tool. Something weird in the exhaust system? Any ideas? I just cleaned the tool and replaced all rings and packings. Thanks, Mike....
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I replaced the drive piston on my Hitachi framing nailer and now when I hook up the air, it just engages the piston and passes air. It doesn't cycle. Anyone got any ideas?...
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