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84
6
Pre-Poured Inverts
Open Trench
(Transit)
Standard Setup Procedures
Standard Setup Procedures
☞
The pre-poured invert must be set at the correct elevation and on
the correct line position.
1.
Set the grade. Enter the required grade for
the pipe to be laid in the display of the Piper.
2.
Set the elevation. Attach the required size
feet to the Piper. The Piper comes standard
with 150 mm (6 inches) feet, and offers
optional feet for 200, 225, 250 and 300 mm
(8, 9, 10, and 12 inches) pipes.
3.
Set the line. Place the Piper in the invert and
adjust the beam so it is in-line with the next
manhole.
☞
In the open trench a transit is used to align the laser beam to the
next manhole.
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