(1) After Drilling Tools Manufacturer expands one drill rod, continue to expand until the square bolt II of the next drill rod is more than 60mm above the fixed wrench, push the handle of the "push cylinder" to the "stop" position, and then Then push it to the "down" position. Lower the drill rod by 30-50mm, make the reamer bit away from the rock, and push the handle to the "stop" position.
(2) Install the enclosing wrench so that the inner square hole of the enclosing wrench fits with the square bolt II of the drill rod, and the outer spline of the enclosing wrench engages with the inner spline of the fixed wrench on the workbench. In order to make the holding wrench in place, the main shaft may need to move up slowly or rotate slowly, but it is never allowed to rotate slowly in the opposite direction.
(3) Operate the "spindle steering" handle, push to the "reverse" position, and turn slowly. Until the threaded joint surface becomes loose. There may be two situations at this time: the first situation: the upper thread is loosened first, which is what we want, and can be programmed
(4) Continue the operation; the second case: the lower thread is loosened first, and the following supplementary procedures should be used at this time:
a. Re-tighten the loose threads, that is, the gap between the two drill rod shoulders must be eliminated, but full torque is not required.
b. Raise the main shaft, take out the holding wrench, and then push the "main shaft drilling" handle to the "down" position to lower the main shaft to the bottom of the first drill rod and tie it above the fixed wrench.
c. Install the enclosing wrench so that the inner square hole of the enclosing wrench fits with the lower bolt of the first drill rod, and its outer spline engages with the inner key of the fixed wrench.
d. Push the "spindle steering" handle to the "reverse" position, and slowly turn it until the threads of the drive head and the drill rod are loosened, and the distance between the shaft shoulders should not be greater than 2mm.
e. Slowly "rise up" the main shaft until the holding wrench can be locked into the square bolt II of the second drill rod.
f. Install the holding wrench to engage the inside and outside and make it in place.
(4) Move the driving head upwards, make the movable outer gear sleeve in the lowest position, and insert another clutch wrench into the square bolt I of the drill rod loose from the driving head, and engage with the internal splines on the driving head. And in place.
(5) Push the "spindle steering" handle to the "reverse" position, and slowly turn to loosen the thread between the two drill rods, and at the same time make the "spindle lift" handle in the "raised" position, so that The drive head rises slowly, and when it reverses until the distance between the two drill pipes is about 30mm, the reverse rotation stops. At this time, the drive head continues to rise until the lower end of the first drill pipe is away from the male thread of the next drill pipe. When about 10-20mm, stop ascending and take off the holding wrench.
(6) Push the handle of the "turning frame cylinder" to the "swing in" position to make the Tapered Button Bits manipulator swing to the center of the drill, and then push the handle of the "clamping cylinder" to the "clamping" position to clamp the manipulator Drill pipe.
(7) Move the driving head upward and continue to reverse until the thread connecting the driving head and the drill rod is separated.
(8) Move the driving head to the highest point.
(9) Push the handle of the "turning rack cylinder" to the "reset" position, place the manipulator flat, and push the handle of the "clamp rod cylinder" to "release".
(10) Hang the drill pipe with the lifting device, and lift the drill pipe until it is free from the manipulator.
(11) When the driving head is quickly lowered about 30mm above the stuck drill rod on the worktable, push the "spindle quick lift" handle to the stop position, and manipulate the "spindle drilling" handle to slowly lower the spindle, and At the same time, push the "spindle steering" handle to "forward rotation" to slowly rotate the drive head until the drive head engages with the drill rod thread.
(12) Raise the spindle and take out the holding wrench. Continue to ream.