Page 2-4. Subparagraph 2-11a(3) is added after
(2) (d), the following is added.
subparagraph 2-11a(2).
CAUTION
(3) Break in period: The drill should be oper-
A break in operation of a new or over-
ated in the FORWARD/COUNTERCLOCKWISE
hauled drifter drill is required to seat
position of drilling for a period of 5 minutes to
the rifle bar nut and other internal parts
properly set the adjustment of the RIFLE NUT.
of the drill. Break in the drifter drill by
Page 2-7. Subparagraph 2-11c.1 is added after
operating it in only the forward (counter-
subparagraph 2-11c(2) (f).
clockwise) direction for a minimum
period of 5 minutes.
c1. Installing the shank piece (striker bar).
Page. 3-5. Subparagraph 3-9c is superseded as
(1) Loosen the chuck jaw retainer bolts and
remove the chuck jaw retainer.
follows:
(2) Insert the shank end of the striker bar in
c. Fill with rock drill oil. MIL-L2104B. as often
the drill chuck.
as necessary.
(3) Slide the chuck jaw retainer over the end
Page 3-9. In figure 3-7(2), TRACK ROLLER OIL
FITTINGS is changed to read "TRACK ROLLER
of the striker bar and bolt it to the front head
of the drill.
GREASE FITTINGS."
CAUTION
Page A-1. In paragraph A6:
Operation of the drifter drill without the
TB 740-93-2 is changed to read "TB 740-97-2."
striker bar should not be attempted.
TP 740-93-3 is changed to read "TM 740-90-1."
Page 2-9. immediately after subparagraph 2-11d
Page B-1. Appendix B is rescinded.
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