Saddles - Greenlee 881 Manual De Instrucciones

Laying Out Bends (cont'd)
Offsets: Working Toward an Obstruction
LENGTH TO END OF SECOND BEND
HEIGHT
(H)
LENGTH – Z
BENDING
MARK 1
1. Select the size and type of conduit. Measure the
height of the obstruction and the distance labeled
LENGTH TO END OF SECOND BEND. Select the
angle to be used.
2. Find the chart that corresponds to the size and type
of conduit selected in Step 1.
3. Under the column labeled ANGLE, find the angle of
bend. Find the row labeled Z. In the row at the top
of the page, find the height (H) of the offset.
4. The number shown at the intersection of the Z row
and the appropriate H column is Z. Subtract Z from
LENGTH TO THE END OF SECOND BEND. Place
the first bending mark this distance from the end of
the conduit.
5. In the same column, find the row labeled L1. Place
the second bending mark L1 inches from the first
bending mark.
6. Bend the conduit.
Greenlee Tools, Inc.
ANGLE
L1
BENDING
MARK 2
881 and 881CT Hydraulic Benders
Three-Bend Saddle
LENGTH TO CENTER
HEIGHT
(H)
LENGTH – Z
BENDING
MARK 1
1. Select the size and type of conduit. Measure the
height of the obstruction and the distance from
the end of the conduit to the center (LENGTH TO
CENTER) of the bend. Select the angle to be used.
Note: The second bend angle will be twice the
number of degrees as the first and third bends.
2. Find the chart that corresponds to the size and type
of conduit selected in Step 1.
3. Under the column labeled ANGLE, find the angle of
bend needed. Find the row labeled Z. In the row at
the top of the page, find the height (H) of the offset.
4. The number shown at the intersection of the Z row
and the appropriate H column is Z. Subtract Z from
the LENGTH TO CENTER. Place the first bending
mark this distance from the end of the conduit.
5. In the same column, find the row labeled L1. Place
the second bending mark L1 inches from the first
bending mark.
6. In the same column, find the row labeled L2. Place
the third bending mark L2 inches from the second
bending mark.
7. Bend the conduit.
26
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
ANGLE
L1 L2
BENDING BENDING
MARK 2 MARK 3