Lyman Universal Case Trimmer

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Dawg_gone

New member
I have the Lyman case trimmer and have trimmed several hundred cases so far with it. Lately there seems to be a lot of slop in the case base end for attaching the cases. The alignment between cutter and case seems to be off. I usually put the case in then run the cutter pilot into the case mouth then tighten it down. If I don't do it this way and tighten first then the alignment is off. Lately the cam locks, especially with .223 cases, slip off while tightening allowing the case to rotate out of the mechanism or at times will not tighten up and cam completely over. Anyone have the same problem or have some tips to fix.
 
I've had the same problem on a limited basis and think the problem is more me when I'm hurrying the process. The only time I have alignment and or case slipping off issues is when I'm trying to hold the case in the shell older while tightening the cam. I think when doing this, the small detent ball is not able to center itself in the primer pocket, therefore the case either slips off or is misaligned when tightened. I tend to snap the case in, then let go and tighten the case.
 
My old lyman case trimmer was VERY inconsistent. I sold it and bought a le wilson and hornady. Very happy now.
 
I have been using the Lyman Universal Case trimmer for a long time with no problems.

I did take it to a Machinist friend and he made me a new shaft bushing for it just to take the slop out of the shaft. Which was a lot less than the slop in the shaft of the RCBS trimmer that I had been using to start with.

Nice to have a friend that is a perfectionist.

DAB
 
Definitely a lot of slop in the shaft as you stated. I think that this is a plastic bushing. Perhaps a nice brass bushing machined to closer tolerances would help my problem, don't know though as when the brass is locked in the mechanism is tight but without brass locked in the mechanism has a lot of slop on the shaft. Doesn't seem to be centering the brass correctly consistently. Maybe operator error. The trimmer works fine but at times its aggravating resetting the brass once it pops out or getting the cams to tighten.
 
Mine was great for about the first 500 rds and then started slipping to where I had to readjust and lock again every 5 th casing. Mine was doing it especially with 22-250 & .223 casings. Thats when I bought the new Redding 2400 with the mic. No more foolishness ever since.
 
i was given one of these as a Xmas gift some years ago..their sons liked the color & it was beefier than my FORSTER (so it had to be better)...it was a loosey-goosey...i kept it around my bench for appearances sake(put brass shavings on it to make it look like it was being used) but kept using my FORSTER.
 
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