TM 5-3820-239-15
b. Remove the two nuts and centralizer arm
the set position. Bushings are used to take the
bolts and remove the centralizer.
wear of the drill steel.
3-30. Removal
3-31. Installation
a. Straighten the ends of the cotter pins
See figure 3-11 and install the centralizer.
Section IX. DRIFTER DRILL
3-32. General
The drifter drill is an air-operated drill lu-
bricated by rock drill oil which is injected into
the air stream from the lubricating oil
reservoir.
3-33. Removal
a. Disconnect the air hoses from the drifter
drill.
b. Loosen the drill mounting plate clamp
bolts and nuts (fig. 3-12) and remove the
drifter drill from the drill guide.
3-34. Installation
See figure 3-12 and install the drifter drill
on the drill mounting plate.
Figure 3-11. Removal of centralizer.
