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Set up for installing cable with the machine mounted below ground:
The set up is similar to the set up for installing cable above ground, (described above) typically this type of
installation is demanded for “series blowing” i.e. when a length of cable is already installed, and the limit of
installation distance is reached. In such cases it is customary to couple a “series machine” sited down a man-
hole some distance from the point of main installation. This machine operates in conjunction with the ma-
chine sited at the main point of installation. The GMP Pneumatic Airstream machine is ideally suited to this
type of operation, it may be coupled with a second machine to increase the distance a single cable can be
installed without couplings. The only difference between this set up, and the set up for installing cable with
the machine above ground, is that there will be no drum stand carrying the cable drum. The cable will be exit-
ing from one side of the manhole and blown into the microduct at the other side of the manhole. The machine
should be aligned with both the incoming cable and the outgoing microduct path, both side to side and up and
down.
NOTE: THE MACHINE MUST NOT BE SUBMERGED IN WATER.
If the hole is full of water it must be pumped out before placing the machine on the bottom of the hole.
