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Accuracy Adjustment
This procedure is easier when performed with two people, on a relatively flat
surface and when using a trivet assembly. Refer to illustration on the
previous page.
Checking Level Accuracy
•
Set up the Piper on the trivet assembly, level tihe Piper with the trivet feet, and
set the grade counter to 0.000%,
•
Set up a transit or automatic level as shown in the illustration approximately 30
meters (100 feet) from the Piper..
•
Take grade readings approximately 30 meters (100 feet) on either side of the
transit. These readings beome A1 and A2.
•
Stand at the grade rod and note where the laser beam strikes the rod. Takes
readings B1 and B2.
•
Subtract B1 from A1 to determine C1, and B2 from A2 to determine C2.
If C1 and C2 are the same, the Piper is accurately adjusted.
If C1 and C2 are not the same, continue with the accuracy adjustment procedure.
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