Greenlee SITE-RITE 840 Manual De Instrucciones página 8

Working Toward an Obstruction (cont'd)
Example 2:
1. Calculate the shrinkage. See the Offset Table, Column 3. (The
amount of shrink for 45 ° x 45 ° offsets is 3/8" per inch of offset
depth. 3/8 x 10 = 3-3/4").
2. Measure the distance to the obstruction. Add the shrinkage to
this distance. (See the illustration. The distance to the
obstruction is 30". 30" + 3-3/4" = 33-3/4).
3. Determine the center-to-center distance. Use one of these
two methods:
• Find the appropriate multiplier in the Offset Table, Column
2. (For 45 ° x 45 ° , the multiplier is 1.4) . Multiply the height
of the obstruction by the multiplier. (10" x 1.4 = 14).
• See the Greenlee Speed Guide for Offsets. In the Offset
Depth Inches column, find the row with the appropriate
amount of offset. Find the Center-to-Center column under
the appropriate OFFSET ANGLE. The distance shown at the
intersection of the appropriate row and column is the
center-to-center distance. (Under Offset Depth Inches, see
the row labeled "10". Read to the right to find the Center-to-
Center distance under 45 ° x 45 ° . The number shown is 14").
4. Mark the conduit as shown.
5. See the bending instructions.
3-Bend Saddles
Like an offset, a saddle is used to avoid an obstruction. In this
case, three bends are used. The first and last bends are of the
same degree; the center bend is twice the number of degrees of
the other two bends. See the illustrations.
8
Site-Rite
45° x 45°, Working Toward an Obstruction
10 inches of offset
Greenlee Textron / Subsidiary of Textron Inc.
®
/ Site-Rite II
®