Greenlee Cam Track 881GX Instruction Manual page 18

Offset-Working Past an Obstruction (Fig.25)
When working past an obstruction, it is necessary to determine the location of the 1st Bend (MARK 1). The center-
to-center distance is then used to find the location of the 2nd Bend (MARK 2).
1. Find the Special Bending Table for the size and type
of conduit. In the table find the row with the angle
of bend and the column with the height of stub de-
sired. Use the numbers from where these intersect
to find bending marks
2. Subtract X from the LENGTH TO 1ST BEND to find
the position of MARK 1.
3. Measure L1 from MARK 1 and place MARK 2 here.
4. Line up MARK 2 with outside edge of saddle for the
1st Bend.
5. Rotate conduit 180˚ and line up MARK 1 with out-
side edge of the saddle for the 2nd Bend.
Offset-Working Toward an Obstruction (Fig.26)
When working toward an obstruction, it is necessary to determine the location of the 2nd Bend. The center-to-
center distance is then used to find the location of the 1st Bend.
1. Find the Special Bending Table for the size and type
of conduit. In the table find the row with the angle
of bend and the column with the height of stub de-
sired. Use the numbers from where these intersect
to find bending marks
2. Subtract Z from LENGTH TO 2ND BEND to find the
position of MARK 2.
3. Measure L1 from MARK 2 and place MARK 1 here.
4. Line up MARK 2 with outside edge of saddle for the
1st Bend.
5. Rotate conduit 180˚ and line up MARK 1 with out-
side edge of the saddle for the 2nd Bend.
Back-to-Back or U-Bend (Fig.27)
A U-shaped bend formed by two parallel 90-degree bends with a straight section of conduit or pipe between the
bends
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. Determine the HEIGHT and the LENGTH of the stub.
Select the angle for the bend.
3. Follow the 90° ANGLE row and the HEIGHT column
for the desired bend. Use the Y and L1 dimensions
from that box.
4. Locate MARK 1 Y distance end of conduit/threads.
5. Add L1 to MARK 1 to find the position of MARK 2.
6. Line up MARK 1 with the outside edge of the saddle.
Bend 90° .
7. Line up MARK 2, keeping the conduit in the same
orientation. Bend 90° .
18
Cam Track® Hydraulic Bender
H
LENGTH - X
MARK
2
H
© 2022 Greenlee Tools, Inc.
1st
BEND
LENGTH
ANGLE
L1
MARK MARK
1
Figure 25
2nd
BEND
LENGTH
ANGLE
L1
MARK
1
Figure 26
LENGTH
Length
90 o
o
90
Y
L1
MARK MARK
1 2
Figure 27
2nd
BEND
2
H
LENGTH - Z
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