TM 5-3820-276-10-1
0017
RAISING DERRICK
CAUTION
Ensure lock pins are in retracted position prior to raising derrick. If lock pins are extended
they will prevent derrick from raising completely and locking into place. Failure to comply
may result in damage to equipment.
1.
If required, set LOCK PINS switch (Figure 13, Item 2) to RETRACT and retract two lock pins
(Figure 13, Item 1).
1
2
WWDS00231
Figure 13. Drilling Lock Pins.
02/13/2013root(opusualwp)wpno(O10004)