TM 5-3820-276-10-1
0007
Table 2.
Drill Operator Control Panel - WWDR - Continued.
Key
Control/Indicator
Function
6.
TABLE SWITCH
Used to extend or retract work table.
7.
Tophead Slide
Used to override the safety switch and allow the tophead to slide over the rod
Override Button
loader at any elevation.
8.
TOP SLIDE Switch
Used to move the tophead from the drilling position to the rod load or unload
position.
9.
MUD STANDPIPE
Controls the opening/closing of the valve in the mud line between the mud
Switch
pump discharge and the derrick air/mud line.
10.
AIR STANDPIPE
Controls the opening/closing of the valve in the air line that regulates the air
Switch
from the receiver tank to the tophead.
11.
BREAKOUT
Operates the cylinder-powered pipe wrench that is mounted at the back of
WRENCH Switch
the drill.
12.
STANDPIPE BLOW
Used to release trapped air between the standpipe valve and drill bit.
DOWN Switch
13.
ROTARY SPEED
Allows operator to select operating speed for drilling conditions. Operator can
Switch
set switch to LOW, MEDIUM, or HIGH.
14.
HOLDBACK
Enables the control system that allows oil to flow out of feed cylinder to
CONTROL Switch
control the head force when drilling with a hammer.
15.
HOLDBACK
Allows operator to regulate amount of pressure maintained in the feed
Pressure Regulator
cylinder for hammer drilling.
16.
REMOTE MUD
Used to activate the control valve and mud pump flow regulator.
PUMP Switch
17.
WATER INJ FLOW
Regulates the amount of water used during water injection.
Regulator
0007-4
02/13/2013root(ctrlindwp)wpno(O10002)
