TB 9-5220-211-50
9. Parallelism of Working Surfaces
a. Performance Check
(1) Place the TI on surface plate and both rolls contacting the surface plate.
(2) Position stylus of height gage in contact with top surface of TI and null the
height gage.
(3) Traverse the length of the surface of the TI at each side and the center with
height gage stylus.
(4) The high-to-low value for this measurement will be within the limits specified in
b. Adjustments. No adjustments can be made.
10. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
