TB 9-5120-202-35
(6) Compute average reading of indications recorded in (4) and (5) above. If average
reading is not within limits specified in table 1 for TI being calibrated, perform b below.
(7) Repeat technique of (3) through (6) above at TI cardinal points of 60 and 100
percent of maximum range.
b. Adjustments. Adjust in accordance with manufacturer's instruction manual.
NOTE
Some torque wrenches do not have adjustments.
9. Accuracy (12
in-lbs (192 in-oz) or
less)
a. Performance Check
(1) Attach TI with ranges of 12.5 in-lbs (200 in-oz) or less to torque tester.
(2) Slowly apply torque to TI in a clockwise direction for full-scale indication of TI.
(Do not over-torque torque tester.)
(3) Slowly release torque until only tare torque of TI is applied.
(4) Repeat (2) and (3) above two more times.
(5) Compute average reading of indications in (2) and (4) above. If average reading
is not within limits specified in table 1 or appendix A for TI being calibrated, perform b below.
b. Adjustments. Adjust in accordance with manufacturer's instruction manual.
NOTE
Some torque wrenches/screwdrivers do not have adjustments.
a. Deenergize and disconnect all equipment.
b. Unless otherwise specified by TI
manufacturer, set audible (micrometer-type
barrel) indicating torque wrenches at 20 percent of maximum range before storage.
c. Replace TI in its protective case.
NOTE
Calibration of a torque wrench/screwdriver in both clockwise
and counterclockwise directions is considered special calibration.
d. Annotate and affix DA label/form in accordance with TB 750-25.