Greenlee 881GX Cam Track Manual De Instrucciones página 19

Saddle Bends
A Saddle creates a bridge to avoid an obstruction blocking the run of the conduit and returning the end of the con-
duit to the same level as the original run of conduit. They can be made using three or four bends
Three-Bend Saddle (Fig.27)
1. Select the size and type of conduit. Find the chart
that corresponds to the size and type of conduit se-
lected in the Special Bending Tables.
2. Measure the HEIGHT of the obstruction and the
LENGTH TO CENTER of the saddle. Select an angle
for the outer bends. The center bend will be twice
the selected angle. (i.e. 22-1/2
3. Follow the ANGLE row to the HEIGHT column for the
desired bend. Use the Z, L1 and L2 dimensions.
4. Subtract Z from the Length to Center and measure
this distance from end of conduit/threads to find
MARK 1.
5. Measure L1 distance from MARK 1 to find MARK 2.
6. Measure L2 distance from MARK 2 to find MARK 3
7. Line up MARK 1 with the outside edge of the saddle
for the 1st bend. Bend to the selected angle.
8. Turn conduit 180
° and
the selected angle.
9. Turn conduit again 180
the selected angle.
LENGTH
TO
CENTER
H
ANGLE
LENGTH - Z L1
MARK
1
Figure 27
52093598 Rev 00
x 45 x 22-1/2
° ° °
line up MARK 2. Bend to twice
line up MARK 3. Bend to
° and
2X
ANGLE
L2
MARK MARK
2 3
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Cam Track® Hydraulic Bender
Four-Bend Saddle (Fig.28)
1. Select the size and type of conduit. Find the chart
that corresponds to the size and type of conduit se-
lected in the Special Bending Tables.
2. Measure the HEIGHT of the obstruction and the
LENGTH TO 2ND BEND to the obstruction and the
STRAIGHT SECTION over the obstruction. Select
)
the angle for all bends.
3. Follow the ANGLE row to the HEIGHT column for the
desired bend. Use the Z, L1 and L2 dimensions.
4. Subtract Z from the Length to Center and measure
this distance from end of conduit/threads to find
MARK 1. Measure L1 distance from MARK 1 to find
MARK 2.
5. Measure L1 distance from MARK 1 to find MARK 2.
6. Add L2 to the Straight Section length and measure
this distance from MARK 2 to find MARK 3.
7. Line up MARK 1 with the outside edge of the saddle.
Bend to the selected angle.
8. Turn conduit 180
selected angle.
9. Line up MARK 3, keeping the conduit in the same
orientation. Bend to the selected angle.
10. Turn conduit 180
elected angle.
LENGTH TO
2nd BEND
H
LENGTH - Z
MARK
line up MARK 2. Bend to the
° and
line up MARK 4. Bend to the
° and
STRAIGHT
SECTION
ANGLE
ANGLE
L2 + STRIGHT SECTION
L1
MARK MARK
1 2
Figure 28
L1
MARK
3 4
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