Hi all, the depth rod on my Mitutoyo dial calipers is wiggly.. ~0.05" or so.
Is it possible to fix?
How likely am I to be able to put it back together if I take it apart?
Maybe there is a video online?
It depends on the style. The ones with 0.2" per turn of the dial are
really simple. Just take the end stop off and pull the slide all the way
to the right. be gentle as the pinion rides up onto the flat part after
the rack teeth end. Also, there will be a brass shim/spring that will
fall out as the slide comes completely off the spar.
The ones with 0.1" per dial turn are more tricky, they have a 2:1 gear
train behind the dial. This has 2 pinions on the rack, and a spring-
loaded gear train to remove backlash. One of the pinions needs to be
wound back against the spring a couple teeth when you reinsert the slide
onto the spar.
The depth rod is most likely screwed to the back of the slide with two
screws, which must have worked loose on yours.