3.4 CONTROLS
INTRODUCTION
The notation of items on the Control Panel has been arranged in a sequence
which could reflect the order in which they could be used in a specific drilling
application.
3.4.1 CONTROL PANEL (SEE FIG. 3.1)
FIGURE 3.1 – CONTROLS
3.4.2 VALVE CONTROLS (SEE FIG. 3.2)
A. Mast Cylinder Hammer Control/Rotary Drilling Control
B. Mast Raise Control
C. Variable Feed Speed Control
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