TM 5-3820-256-10
CHAPTER 2
OPERATING INSTRUCTIONS
Section I. DESCRIPTION AND USE OF
OPERATOR'S CONTROLS AND INDICATORS
2-1.
Drilling Rig.
a.
Mast.
Figure 2-1 . Mast Controls
CONTROL or
KEY
INDICATOR
FUNCTION
1
Mast Raise
Control
Operates cylinders to raise and lower the mast.
2
Mast Lights Switch
Turns the mast lights on and off.
2-1