TB 9-5210-210-24
5. Accessories Required. The accessories required for this calibration are common
usage accessories issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.
CALIBRATION PROCESS
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual.
d. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
a. Loosen bezel locking screw (fig. 1) and rotate bezel 360 degrees.
b. Verify that there is no interference between the hands, dial face, and crystal and
that the contact point is tight on TI spindle.
c. To verify that the TI is operating properly, perform the procedures listed in (1) and
(2) below:
(1) Depress spindle or contact end to internal stop and release. Spindle or contact
end should return to extended position freely and without hesitation.
(2) Record the position of the hand at the extended position and at the depressed
position for future reference.
NOTE
Calibration of extended travel dial indicators can be
accomplished using the Starrett, model 716 with 12 inch
extension support shaft by verifying one inch at a time (up to
6 inches of travel) until full travel is characterized.
