CommScope ConQuest Conduit Construction - Manual (Page 31)

Underground Installation Methods 4.13
Pull Plow Method
Pull Plow Method
This method requires the use of a vibrator box attachment. Select a plow blade with a circular area at least 1
inch (2.5 cm) larger than the conduit. This expanded area will provide a path for the conduit that will reduce the
amount of pulling tension associated with side wall pressure.
A tag-behind bullet can also be used. Attach the bullet to the plow blade with a short length of chain. Attach the
other end of the bullet to a pulling swivel and grip to pull the conduit. Cap or tape the conduit end.
Overpulling can relieve pulling tension in longer pulls. Pull the conduit to an intermediate trench and overpull
through the pit.
Start blade in
an open pit
NOTE: Loose soil (such as sand) will decrease the length a conduit can be pulled due to soil
collapsing around the conduit effectively increasing the pulling tension! This same effect will
also occur in wet clay type soil.
conduit
pit