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.
a. Straighten the ends of the cotter pins
Section IX. DRIFTER DRILL
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
a. Disconnect the air hoses from the drifter
b. Loosen the drill mounting plate clamp
drifter drill from the drill guide.
on the drill mounting plate.