installation, the excess shaft
extensions above the
foundation may be cut,
normally about 8 to 10 inches
(203 to 254 mm) above the
footing (or turn-down) base.
Threaded form rods are placed
through the locking plate, then
the subassembly is positioned
in place on top of the insert.
Nuts are placed on each
threaded rod and handtightened
against the locking
plate. A hydraulic/
pneumatic jack is positioned
with its actuator bearing
against this locking plate. The jack is then actuated to
transfer the structural load
from soil to pier. The
foundation and/or structure are
monitored for elevation
change, using an optical or
electronic level. The jack is
stopped when the foundation
or structure baseline reaches
predetermined height as
measured by an optical or
electronic level.
The nuts are
immediately
tightened by torque
wrench or
equivalent device
on threaded form
rods to 75 ft lbs
(102 N-m).