During making a borehole, we often have to deal with closing of a borehole. After drilling is completed, a hole can "collapse" and we have no way to place a pipe in it. The only solution in such a case is to pull in a pipe directly behind the "mole" during boring operation. We can pull in plastic pipes (PE-PCV). "Mole" for this purpose must be armed with a special tool for pulling in pipes, which must correspond to the diameter of the pipe, and then attach the pipe to the mole. In the case of larger machines (MAX K130S), we fix the pipe with a steel cable pulled inside the pipe and a tensioner placed at the end of the pipe. Pulling in pipes with smaller machines (MAX K65, MAX K75S) is a bit easier, since there is no cable and tensioner, the tool for pulling in pipes into which the "mole" is armed has a thread that allows "screwing in" the pipe to be pulled in.
Plastic pipes with small diameters of the range of 25-55 mm, are pulled in with a tool for manual pulling. After boring a hole, we disconnect the mole in the starting pit from the air supply/control hose, to which we tighten the tool for manual pulling with the threaded PE / PVC pipe being pulled on it. Then, by pulling the air supply/control hose in the starting pit, we pull the installed PE / PVC pipe through the previously made borehole.
You can find more information on how to do the work with different accessories here.