TM 5-3610-253-14
OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES - Cont
Table 2-1.
AN - Annually
(Number) . Hundreds of Hours
W - Weakly
B - Before
s - Semiannually
M - Monthly
D - During
BI - Biannually
Q - Quarterly
A - After
For Readiness
ITEM TO BE INSPECTED
Reporting,
ITEM
Equipment Is
PROCEDURE
NO.
Not Ready/
Available If:
D
2
NOTE
Excess pressure or contact may overheat
drill bit. Be sure each contact with drill
bit is brief with light pressure.
3. Hold Carborundum pencil firmly with point
inside hollow drill bit at an approximate 10 to
15-degree angle from drill bit centerline. Hold
pencil against drill bit inside surface briefly,
and repeat until all nicks, burrs, or rounded
surfaces are removed from edge of drill bit.
4. Turn power off.
5. Clean work surface.
2-11
