TB 9-5220-211-40
ANGLE
BUTT PLATE
VIEW OF
ROLLS
END
CENTER
END
GAGE
BLOCK
STACK
TEST
INSTRUMENT
GAGE
BLOCK
STACK
SURFACE
PLATE
Figure 1. Equipment setup.
8. Length and Parallelism of Rolls
a. Performance Check
(1) Using height gage and stacks of gage blocks setup in 7 above, measure the
distance between the TI rolls at the center and at each end of the rolls (fig. 1).
(2) The distance between the two rolls and the parallelism of the rolls will be within
the limits specified in table 1.
b. Adjustments. If the TI meets the parallelism of rolls specification in table 1, but
exceeds the length specification, issue a calibration report specifying the length between the
roll centers.