Can't answer the question directly, but wanted to pitch what I had. Wobbly's info is spot on, as usual.
Wife says I'm accident prone. Not so sure myself, but I've spent a lot of time recuperating, and absolutely hate every minute of it. When younger, I pretty much did all that I could. As I've entered older age, the distinction between sprain and strain becomes more important, and quite frankly we don't always know that we've hurt ourselves! Well, me anyway.
So first, there's a difference between "lift limit" and "pull limit," complicated by the fact that both can depend greatly on what exactly your physical issue is. The one thing that is for sure is that you don't want to make It worse. I'd ask my doc this question if I was concerned!
Secondly, 10 lbs (or whatever) is usually a very conservative best-guess, and I've rarely gotten into trouble exceeding that without my body telling me to stop. Best listen to that, more so than the docs!
And thirdly, I'm assuming that the limit is caused by something other than the right arm, but I reloaded several hours a day left handed after having my right wrist rebuilt a few years ago. It was fine, just slow, and I actually learned a lot! It was fun to have the time to devote to experimentation.
Don't have a Dillon, but one thing I did that was alluded to in the posts above is hang sort of a small trapeze from the end of the arm on my T7, that hung below the bench where I could get my foot on it. The first week or so after surgery any strain of any kind seemed to "go to the wrist." Wife helped me rig it. I could do everything with my left without exerting except bottom out, and I just stuck my toes on top of that trapeze and pressed a bit, worked great!
Good for you for wanting to keep at it! Sitting around is for, well, . . ., don't do that.