TM 9-2320-269-10
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - CONTINUED
DERRICK - EXTERIOR - CONTINUED
Rotating Turret and Rotation Gear
Mounts on top of derrick mast, and rotation gear is driven by hydraulic powered motor, turret rotates to 3700 (1/4) right and
left direction only. In other words, rotation is non-continuous. Turret rotation is controlled from operator's station.
Derrick Leg
The derrick leg Is attached to the rotating turret. The outer steel tube houses the fiberglass extension section and
hydraulic powered extension section. The derrick leg Is elevated and lowered by the elevation cylinder which is controlled
from the operator's station.
TA 222501
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