TM 55-2840-254-23
1-120 DETERMINE DEPTH OF DAMAGE FROM CHAFING, DENTING, SCRATCHING, 1-120
GOUGING, OR WEAR
Dial Indicator
INITIAL SETUP
Thickness Gage
Applicable Configurations:
Hand-File Set
All
Wire Gages
Tools:
Materials:
Technical Inspection Tool Kit,
Carborundum Stone (E10)
NSN 5180-00-323-5114
Dial Indicating Depth Gage
Inside Micrometer Caliper Set
Personnel Required:
Outside Micrometer Caliper Set
68B30 Aircraft Powerplant Inspector
1.
Determine depth of damage on flat sur-
faces (1) as follows:
a. Remove projecting material (2) by
blending. Use carborundum stone
(E10).
b. Measure depth of damage. Use dial in-
dicating depth gage (3).
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