Dti questions

Recently got a lever type DTI, never used one before, only dial gauges. It is a Mitutoyo 513-205F

1) was under the impression the lever should rotate with gentle pressure. Only a light friction fit to the pointer mechanism.This doesnt rotate, and not so easy to get body in correct position for bores. Is there a trick to get it to move?

2) It has dovetails and a shaft for mounting on the back. The shaft does not unscrew or appear removable, yet also has dovetails on the back face. The dovetail would be more useful, if it does come out?

 

I don't know about the first point but the second.

I expect that the shaft screws in to a female dovetail locking it to the male dovetail on the back of the indicator.

 

I have also acquired the lever type it take a bit of getting used to I still prefer and normally grab the normal dti's mine only goes back and forth not round at the pointer and the dovetail fitting is for the stand to clamp onto

 

By rotating I presume you mean angle the stylus up or down, if so then all the ones I have seen work that way.

Regarding the shaft mount, the pdf seems to show two variants depending on the age.
Older one.



Newer one




Both types seem removable

 

It was 26 and 27 in the last drawing that I was trying to explain.

 

What make is it? I've never had one not move!

 

Part 10 on the first and 13 on the second, does appear to be threaded, I will try again to unscrew. Thanks for the drawings, I dont know which I have. www.ebay.co.uk/itm/283647983321

Any idea if the stylus should rotate past the travel of the needle? I dont want to damage it.

 

Im a bit lost, Normally you just push or pull the stylus at the end of its travel it readjusts

 

If it needs stripping down/fixing, doubleboost is the man, well his mate Bob.

 

https://ecatalog.mitutoyo.com/cmimages/003/324/2232-Dial_Test_-Indicators.pdf

 

same as mine the pointer wont rotate it will only move forward or backward a few mm

 

Kram I have just looked at the one you bought on ebay its missing the part that slides on the dovetail either the front or the rear,see if you can get one as it will make it easier to use.

 

Starrett do an attachment that makes indicating bores really easy.

 

Here

 

Got one somewhere. Haven't actually used it yet

 

I have one of those too.

As for the lever - just get hold of it and wrench it into the position you want. Mine takes quite a bit of effort (relatively) though the working action is very light. The pivot bar inside has chunky stops on it so you're not levering against the delicate mechanism so no fear of wrecking it.