TB 9-5210-210-50
furnished with dial indicator calibrator (A1, table 2).
Table 2. Minimum Specifications of Equipment Required.
Common Name
Minimum Use
Manufacturer, Model and
Item
Specifications
Part Number
A1
DIAL INDICATOR
Federal Products Corp.,
Range: 0.00005 to 1 in.
1
Model 400B-1
CALIBRATOR
Accuracy: 0.00001 in.
(MIS-10327)
(0.00004 in.)
1Equipment
limitation: accuracy 0.00004 inch.
SECTION III
NOTE
Unless otherwise specified, verify the results of each test and
take corrective action whenever the test requirement is not
met before continuing with the calibration.
6. Preliminary Instructions
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 and item identification number as listed in table 2. For identification of equipment
referenced by item numbers prefixed with A, see table 2.
c. Loosen bezel locking screw (fig. 1) and rotate bezel 360.
that the contact point is tight on TI spindle.
e. 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
During calibration of a style C TI, the lever arm shall not
deviate more than 15o from the horizontal plane of the TI. To
ensure that the level arm does not deviate, the contact point
lever must be positioned horizontally at midrange to minimize
any cosine error.
3
