TM 5-5420-227-24
GEN ERAL M AI N T EN AN CE -Continued
(Sheet 1
Removal of Studs Broken at Surface
of 3)
Screw threading set
TOOLS:
Portable electric drill
Twist drill set
Screw extractor set
Ball peen hammer
Prick punch
Hand oiler
penetrating oil (Item 9, Appendix D)
SUPPLIES:
Clean rags (Item 12, Appendix D)
Using penetrating oil, lube thread area (A).
10
2. Using hammer, lightly tap stud (B).
N OT E
I t is ve ry im port a nt t o drill out brok e n
st ud on e x a c t c e nt e r line .
Using punch and hammer, punch center of
3.
broken stud (B).
WARN I N G
Sa fe t y gla sse s m ust be w orn w he n using
drill t o pre ve nt injury t o e ye s.
Using electric drill with pilot twist drill,
4.
drill center of stud (B).
Using electric drill with twist drill slightly
5.
smaller than extractor, drill into stud (B).
Sheet 2
G O on to
C-11