TM 5-3820-276-10-1
0027
DRILL ROD INSTALLATION - Continued
NOTE
Drill rod should lift slightly off base as it is engaged by tophead spindle.
11.
Pull ROTATION control lever (Figure 3, Item 9) back to attach tophead (Figure 3, Item 2) to drill rod
(Figure 3, Item 5) until ROTATION PRESSURE gauge (Figure 3, Item 1) reads 2,100 psi (145 bar).
12.
Disengage tophead-mounted wrench (Figure 4, Item 1) by removing foot from foot switch (Figure 4, Item 2).
1
2
WWDS00452
Figure 4.
Tophead Mounted Wrench Foot Switch.
