TB 9-5220-213-24
(2) Slowly adjust thimble on standard clockwise until the spindle comes in contact with
the TI's critical area. Continue turning thimble clockwise until thimble begins to spin freely.
(3) Standard must indicate within limits in table 3. If not, perform b below.
(4) Record reading on worksheet (Appendix, fig. A-3) for use in step (7) below.
NOTE
If any single reading is found to be out of the dimension limits
listed in table 3, the single out of tolerance reading will be
annotated in the ACTUAL GAGE DIMENSIONS section of DA
3023. The averages from worksheet fig. A-3 will not be used.
(5) Turn standard's thimble counter-clockwise to loosen and move TI to measure
another section in the critical measurement area.
(6) Repeat steps (1) through (5) above until the appropriate number of readings have
been taken, nine (9) readings on each area of headspace gage (fig. 1) and six (6) readings on
timing gages (fig. 2) at separate points. Record each reading on worksheet (Appendix, fig. A-3)
for use in step (7) below.
(7) Calculate average reading of each area on worksheet (Appendix, fig. A-3) and
annotate results on the DA Form 3023 in the ACTUAL GAGE DIMENSIONS section.
(8) Repeat steps (1) through (7) for NO GO area of TI Headspace gage.
(9) Repeat steps (1) through (7) for the NO FIRE and FIRE timing gages (fig. 2). All
measurement readings must fall in the measured dimension limits of table 3. If any
indications of TI is not within the limits of table 3 perform b below.
Measured dimension limits
Part number
Nomenclature
in inches
5351211
HEADSPACE / GO
0.2015 0.2020
5351211
HEADSPACE / NO GO
0.2060 0.2065
5351213
TIMING GAGE / NO FIRE
0.1140 0.1160
5351214
TIMING GAGE / FIRE
0.0200 0.0220
b. Adjustments. No adjustments can be made. Proceed to appendix, FRONT OF DA
FORM 3023 step (11) and NOTE for instructions.
a. Disconnect all equipment.
b. Annotate DA Form 3023 (Gage Record card) which is used in lieu of DA Label 80 in
accordance with TB 750-25. See Appendix for instructions.
c. TI should be carefully packaged in accordance with TB 750-25 Section IX, see
Appendix PACKAGING for instructions.