Lathe chuck spindle cam replacement

[Janderso]

I noticed a couple of my D1-6 spindle cams are worn.
Worn meaning I can see a wear groove on some of them. My new Bison 4 jaw and PBM 8" lock up fine.
My concern is two fold, Is this a lock up integrity issue? will it cause uneven lockup on the taper?

My 5C chuck is stubborn but it was super cheap. In fact I am replacing it with a TMX (no machining required) 5C collet chuck and D1-6 adapter.

I want to make sure the cams are in good shape. The lathe is 50 years old.
Is this a maintenance item?

Thank you,
Jeff

 

[benmychree]

Only 50 years old? Just getting broken in! If the cams do not loosen I would not worry about it.

 

[Janderso]

Well John,
I'm hoping for logical advice. Seems like I got it.
Yep, only 50 years of gentle use at a community college.
Thanks.