Non GD&T dimensioned features & assumed tolerances 3

[Runz]

We have several drawings that contain partial GD&T positional Tolerance. Most of the diametrical dimensions do not have any GD&T positional tolerance. The titleblock says the drawings are dimensioned and toleranced per ASME Y14.5-1994. There are also tolerances given for 2 and 3 place decimals (.03 & .010) and angular dimensions (+/- 1/2°)
My question is, what are the none GD&T dimensions held to positionally? See pic attached. Are they assumed located to a true center axes? What diameter do is used to find the center axes? Depending on the diameter you use, could it not change your inspection results? Are there assumed positional locations on these diameters or only size tolerances? Just a little confused as to what is assumed when there is no GD&T on a dimension.
Thanks,

John

 

[fcsuper]

Runz,

Can you show us an updated drawing view that is more complete, based on this discussion and your own research into the design intent of the part?

Matt Lorono, CSWP
Product Definition Specialist, DS SolidWorks Corp
Personal sites:
Lorono's SolidWorks Resources & SolidWorks Legion