TM 9-2320-269-10
RAISING AND LOWERING THE DERRICK LEG
WARNING
Make sure you check for overhead obstructions before moving the derrick leg from the
rest.
NOTE
Make sure the M876 truck is level and all four outriggers are positioned on solid ground
before operating the derrick.
Each derrick control handle has a distinctive shape and design, the purpose being that
you learn which controls are which by feel. You then can operate the derrick and see the
derrick movements at the same time.
RAISING THE DERRICK LEG
To raise the derrick leg from the rest (1) pull up on elevation control handle (2) on the operator's console (3).
LOWERING THE DERRICK LEG
Push down elevation control handle (2) to lower derrick leg. The derrick leg travel will stop when you release the
handle (2).
NOTE
To see your angle of elevation, look at the gage on side of derrick leg.
TA 222606
2-118
