I have a first iteration of an "Original Haenel/Aydt".  Occasionally I am getting a failure to fire and the firing pin strike has always been light.  Whether spring, crud or firing pin difficulties I have no idea.  I want to take it down and give it a thorough cleaning and at least look at the internals but I have precious little idea where to start.  Is there a take down description or exploded view available some where or is it possible someone could explain the process?  I've been dinking with rifles for 50 years and while definitely not remotely close to being a gunsmith I am quite mechanically inclined, handy, patient and cautious.  

Thanks!!

Vic

one, does the trigger assembly simply lift out?  It appears so.

Yeah, it is hooked on the forward end so just lift the hind end.

One and LR, thanks to both of you for your help.  I took the rifle all the way down yesterday and it was surprisingly clean as a whistle inside.  I had considered and it had been suggested I try large pistol primers.  Them being shorter than large rifle I wondered if perhaps they would be too short and even less of a firing pin impact be delivered.  Yesterday I did load one cartridge with a large pistol primer and the difference in impact was significant.  The LP primer looked much more as it should rather than the tiny dent on LR primers.  After examining the internals and finding nothing wrong there and seeing the difference between LR and LP impact I believe it is a main spring strength issue.  It's obvious it isn't a firing pin or dirt issue.  I loaded 10 rounds with LP primers but won't get to check them for any difference in accuracy for a couple days.

Thanks again to both of you.

hairline crack in the misprint?  I assume that was supposed to be mainspring?  I didn't see anything in mine but I did not put it under a magnifying glass.  Thanks for the suggestion about primer seating depth, it is something I am always conscious of.

Yes, large pistol primers are shorter than large rifle primers but it hasn't been a problem in my old rifles where the ease of ignition trumps all.

Thanks again to all of you.  cmarg, that is good to know and I will file that information for hopefully unneeded future use.

I did shoot the pistol primer loaded rounds and there was no difference in accuracy from them to LR primed rounds.  For the time being it appears my problem is solved!!!  Now to "practice, practice, practice" with the fine old rifle, which I have been able to do about every day the last couple weeks.  Groups and scores are improving, albeit slowly....