Greenlee 1818 Manuel D'instructions page 11

Special Bending Information
4 Bend Saddles with Straight
← →
LENGTH
1. Go to the following chart which is for the size and type of conduit you are to bend.
2. Look down the ANGLE column until you come to the angle you want to bend to.
3. Look at the numbers in the row preceded by Z and pick the one that is directly under the height (H) you want.
4. Subtract this Z dimension from the desired length.
5. Place your first mark this distance from the end of the conduit.
6. Look at the numbers in the row preceded by L1 and pick the one that is directly under the height (H) you want.
7. Place a second mark this distance from your first mark.
8. Look at the numbers in the row preceded by L2 and pick the one that is directly under the height (H) you want.
9. Add this L2 value to the desired length of your straight section.
10. Place a third mark this distance from your first mark.
11. Look up the L1 dimension used above again.
12. Place a fourth mark this distance from your third mark.
13. Make your four bends by placing the front edge of the hook on the respective marks for each bend.
U-Bends
1. Go to the chart for the size and type of conduit you are to bend.
2. Look down the ANGLE column until you come to 90 degrees.
3. Look at the numbers in the row preceded by Y and pick the one that is directly under the length (L) you want the
length to be.
4. Place your first mark at this distance from the end of the conduit.
5. Look at the numbers in the row preceded by L1 and pick the one that is directly under the height (H) you want.
6. Place a second mark this distance from your first mark.
7. Make your first bend after placing the front edge of the hook on the first mark and your second bend after
placing the front edge of the hook on the second mark.
Greenlee Tools, Inc.
(cont'd)
STRAIGHT
←
SECTION
HEIGHT
ANGLE
← →
LENGTH
1818 Mechanical Bender
←
L2 + STRAIGHT SECTION
← → ←
LENGTH – Z L1
BENDING
MARK 1
← →
←
Y
L1
BENDING
MARK 1
11
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
→
→ ← →
L1
BENDING
BENDING BENDING
MARK 2
MARK 3 MARK 4
→
BENDING
MARK 2