TM 9-2320-269-10
EXTENSION-RETRACTION FIBERGLASS EXTENSION
NOTE
This paragraph covers the second extension In the derrick leg, which consists of a
fiberglass extension, that Is extended manually. The following procedures will help you to
extend this section by hand and retract It with the aid of the turret winch.
EXTENDING
1.
Extend derrick leg (1) hydraulic extension (2). See page 2-120 (extending and retracting derrick leg).
2.
Raise pole guide (3) by pulling back on pole guide elevation control handle (4).
3.
Using rotation control handle (5), rotate and lower derrick leg (1) over the right side of vehicle, to
approximately 150 below horizontal. This will enable you to reach the fiberglass extension section easily and
remove the retaining pin.
TA 222609
2-121