Current Tools 751 User manual

CURRENT TOOLS • P. O. BOX 17026 GREENVILLE, SC 29606
800.230.5421 or 864-721-4230 • FAX [phone]
www.currenttools.com
07/11 REV. 3
Operating, Maintenance, Safety
and Parts Manual
Current Tools™ Mech anical Bender
Model 751 — 1¼" and 1½"
RIGID and IMC conduit and schedule 40 Pipe
This manual is free of charge. All personnel who operate the Mechanical Bender should have a
copy of this manual and read and understand its contents. To request a copy, call or write to the
address below. All information, specifications and product designs may change due to design
improvements or updates and are subject to change without notice. Current Tools does not
assume any liability for damages resulting from misuse or incorrect application of its products.
Read and understand this material before
operating or servicing the Mechanical Bender.
Failure to understand how to safely operate
and service this unit could result in serious
injury or death.

Hazards or unsafe
p
ractices which, if not avoided, COULD result in serious
personal in
j
ur
y
or death
.
W
ARNIN
G
Hazards or unsafe
p
ractices which, if not avoided, COULD result in minor
personal in
j
ur
y
or propert
y
damage
.
CA
UTI
ON
Immediate hazards which, if not avoided, WILL result in serious
p
ersona
l
in
j
ur
y
or death
.
DAN
G
E
R
THIS SAFETY SYMBOL is used to call your attention to instructions
that concern your personal safety. It means: ATTENTION! BE AWARE!
THIS IS AN IMPORTANT SAFETY INSTRUCTION!
Read, understand, and follow these safety instructions. Failure to follow
these safet
y
instructions ma
y
result in in
j
ur
y
or death.
Safety Alert
Symbol
2
TABLE OF CONTENTS
Safety Alerts .............................................2
Safety Information ........................................3
Specifications .............................................4
Operating Instructions .....................................4
Maintenance .............................................5
Stub Bending Information ..................................5
Offset Bending Information .................................6
Exploded View ............................................7
Parts List — Model 751 Mechanical Bender . . . . . . . . . . . . . . . . . . . 8
SAFETY ALERTS

WARNING
WARNING
CAUTION
CAUTION
CAUTION
WARNING
WARNING
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
This manual should be read and understood by all personnel who operate
or service this Mechanical Bender. Failure to understand how to safely
operate and service this unit could result in injury or death. This unit
should only be operated or serviced by qualified personnel.
RETAIN SAFETY INFORMATION
3
Keep hands and feet away from pinch points such as bending
shoe, ratchet handle and conduit when operating the bender.
Do NOT leave the ratchet handle in the up position.
The handle could fall and cause serious injury.
Do NOT force tool. If bend cannot be completed with the
5' section of 1" RIGID conduit used as a ratchet handle,
discontinue bend and determine cause before continuing.
Do NOT use a ratchet handle longer than 5' of 1"
RIGID conduit.
Do NOT stand on the bender. Serious injury could occur if
bender is tipped.
ALWAYS keep conduit under control when unloading. Conduit
not under control could injure the operator or others in the area.
ALWAYS inspect the bender before operating. Replace any
damaged, missing or worn parts.
WEAR approved safety glasses when using the bender.
Bender MUST be used on a firm, flat surface.
Do NOT use on an inclined surface.
ALWAYS keep the path of the bending conduit clear of
obstructions.
Keep firm hand pressure on the ratchet handle while bending.
The stored energy of bending conduit could cause the ratchet
handle to spring forward and strike operator or nearby personnel.
REMOVE the ratchet handle and conduit before moving
the bender.
Keep firm control of the bender T-handle when moving the
bender to avoid tipping over.
ONLY use the bender for its intended purpose. Only use the
bender to bend the specified types and sizes of conduit and pipe.
Bender is heavy and requires more than 1 person to lift.
IMPORTANT SAFETY INFORMATION
Follow ALL safety information provided by the manufacturer.

4
Figure 1
SPECIFICATIONS
Model No. 751
Capacity 1¼" and 1½" RIGID and IMC conduit and
schedule 40 pipe
Overall Dimensions 48" L x 24" W x 38 ¹/8" H
Weight 104 lbs.
OPERATING INSTRUCTIONS
1. Cut a 5' length of 1" RIGID conduit and insert it into the ratchet arm as
shown in Figure 1. This will serve as the ratchet handle.
2. Place the ratchet handle in the up position. This will release the ratchet pawl.
Rotate the bending shoe counter-clockwise. Then lower the ratchet handle.
3. Slide the conduit to be bent
over the corresponding size
on the conduit support unit,
through the shoe groove and
bending hook.
4. Place the bending mark on the
conduit in line with the front
edge of the bending hook.
See Figure C on page 6.
5. Raise the ratchet handle until
the pawl clicks. Push the ratchet
handle down. Repeat until you
have completed the desired bend.
6. To remove bent conduit, raise the ratchet handle to the up position
and remove the ratchet handle. Lift the tail of the bent conduit to
rotate the bending shoe about 45º in the counter-clockwise direction.
Pull down slightly on the tail of the bent conduit to unseat the
conduit from the bending shoe and remove the bent conduit.
7. Place the ratchet handle back into the ratchet arm and lower
the ratchet handle to the down position.
NOTE: Springback compensation is not calculated on
the bending degree indicator.
NOTE: When not in use the ratchet handle MUST remain
in the down position.

5
Stub Dimensions Chart Figures are approximate.
Conduit Centerline Minimum Deduct
Size Bending Radius Stub Length Length
1¼" 8" 151⁄8" 135⁄8"
1½" 95⁄8" 173⁄8" 155⁄8"
FIGURE C
STUB
LENGTH
FIGURE BFIGURE A
STUB
LENGTH
MARK
STUB
LENGTH
DEDUCT
LENGTH
BENDING
MARK
BENDING
MARK
1¼" CONDUIT – 1½" MINIMUM PAST HOOK
1½" CONDUIT – 1
3
⁄ 4 " MINIMUM PAST HOOK
MAINTENANCE
Monthly: Apply multi-purpose grease at grease fitting.
See Item #38 on Exploded View on Page 7.
STUB BENDING INFORMATION
To locate bending marks for stubs:
1. Check the Stub Dimensions Chart (below) for Minimum Stub Length. The
stub being bent must be equal to or longer than the Minimum Stub Length.
2. Measure and mark the stub length required on the conduit. This is the stub
length mark. See Figure A. Locate the Deduct Length on the Stub Dimensions
Chart (below). Deduct this length from the stub length mark and make
a second mark. This is the bending mark. See Figure A.
3. Put the conduit in the bender and place the bending mark in line with
the front edge of the shoe hook. See Figure C. Complete the bend.
NOTE: The conduit must extend past the front edge of the
shoe hook as follows:
1¼" CONDUIT – 1½" MINIMUM PAST HOOK
1½" CONDUIT – 1¾" MINIMUM PAST HOOK

6
MARK #2
MARK #3
MARK #1
DEDUCT
LENGTH
CENTER-TO-CENTER LENGTH
FIGURE 1 FIGURE 2
OFFSET
HEIGHT ANGLE
START OF BEND
Center-to-Center Chart Figures are approximate.
Offset Height 4 6 8 10 12 14 16 18 20 22
Max Conduit Size 1½"
15˚ Center-to-Center 157⁄16" 233⁄16" 3015⁄16" 385⁄8" 463⁄8" 541⁄16" 6113⁄16" 699⁄16" 77¼" 85"
Max Conduit Size 1½"
30˚ Center-to-Center 16" 20" 24" 28" 32" 36" 40" 44"
Max Conduit Size 1¼" 1½"
45˚ Center-to-Center 141⁄8" 1615⁄16" 1913⁄16" 225⁄8" 257⁄16" 28¼" 311⁄8"
To locate the center-to-center distance of offset bending marks other than those listed in the above chart,
use the following multipliers. Multiply the height of offset desired by 3.86 on 15˚ bends, 2 on 30˚ bends,
and 1.4 on 45˚ bends.
Deduct Chart
Conduit Deduct
Size Length
1¼" 4½"
1½" 43⁄4"
Figures are approximate.
OFFSET BENDING INFORMATION
To mark conduit for offsets:
1. Measure distance from end of conduit to start of first bend and mark
conduit. This is mark #1. See Figure 1 and 2.
2. Refer to Deduct Chart and deduct this length from mark #1 and place
mark #2 on conduit. See Figure 1.
3. Measure the height of the obstacle. This is the offset height. Refer to the
Center-to-Center Chart to locate the next mark. Measure the center-to-center
distance from mark #2 and place mark #3 on conduit. See Figure 1.
4. Layout of bends is now complete. Next, place mark #2 in line with front
edge of shoe hook and make first bend. Note: The conduit must extend
past the front edge of the shoe hook as follows:
1¼" CONDUIT – 1½" MINIMUM PAST HOOK
1½" CONDUIT – 13⁄4" MINIMUM PAST HOOK
See Figure C on Page 5.
5. Rotate conduit in the bender 180º.
Place mark #3 in line with front
edge of shoe hook and complete
second bend.

7
EXPLODED VIEW — Model 751 Mechanical Bender

8
PARTS LIST — Model 751 Mechanical Bender
ITEM # PART # QTY DESCRIPTION
........1 ..............BENDING SHOE
........1 .............BENDER HOUSING
........1 ..............ROLLING STAND
. . . . . . . . 1 . . . . . . . . . . . WASHER – FLAT 7⁄8 SAE
........1 .............. RATCHET ARM
........1 ..............BENDING HOOK
........1 .............. RATCHET PAWL
........1 ...............RATCHET PIN
1 . . . . . . . . . . 751-458.
2 . . . . . . . . . . 751-450.
3 . . . . . . . . . . 750-668.
4 . . . . . . . . . . . 750-13 .
5 . . . . . . . . . . 750-335.
6 . . . . . . . . . . . 751-2. .
7 . . . . . . . . . . 750-330.
8 . . . . . . . . . . 750-347.
9 . . . . . . . . . . . 750-10 . . . . . . . . . 1 . . . . . . . . . . . . . TORSION SPRING
........
........
........
........
........
........
........
........
.........
........
........
........
........
........
........
........
........
........
........
........
........
........
10. . . . . . . . . . . 750-9. .
11. . . . . . . . . . 751-420.
12. . . . . . . . . . . 504-1. .
13. . . . . . . . . . . 509-13 .
14. . . . . . . . . . . 77-016 .
15. . . . . . . . . . 750-349.
16. . . . . . . . . . . 750-18 .
17. . . . . . . . . . 751-440.
18 . . . . . . . . . . . 750-20.
19. . . . . . . . . . . 750-21 .
20. . . . . . . . . . . 750-22 .
21. . . . . . . . . . 750-394.
22. . . . . . . . . . . 751-8. .
23. . . . . . . . . . . 751-9. .
24. . . . . . . . . . . 2-1403 .
25. . . . . . . . . . . 281-2C .
26. . . . . . . . . . . 281-1F .
27. . . . . . . . . . .280-2G .
28. . . . . . . . . . . 751-10 .
29. . . . . . . . . . 751-419.
30. . . . . . . . . . . 751-11 .
31. . . . . . . . . . 751-389.
32. . . . . . . . . . 751-390. ........
33...........705-14 .........
1 . . . . . . . . . . . . .PRESSURE SPRING
1 . . . . . . . . . . . . . .PRESSURE PLUG
2 . . . . . . . . . . . . . . . . . . . GRIP
2 . . . . . . . . . . . . . . . . . . WHEEL
2 . . . . . . . . . . . . . . . .COTTER PIN
1 . . . . . . . . BENDING DEGREE INDICATOR
2 . . . . . . . . .7⁄8"-9" HEX LOCK NUT (THIN)
1 . . . . . . . . . . . . INDICATOR ARROW
1 . . . . . . . . . .¼"-20" X ½" HEX HD SCREW
2 . . . . . . . . . . . .RETAINING RING – ½"
1 . . . . . . . . . . . . RETAINING RING – 1"
1 . . . . . . . . . . . . . . . . . WASHER
1 . . . . . . . . . . ½"-13" X 5⁄16" JAM SCREW
1 . . . . . . 5⁄8" -11" X 2" SOC. HD. CAP SCREW
1 . . . . . . . . . . . . . . . . . BUSHING
4 . . . . . . . . . . . . . ½" LOCK WASHER
4 . . . . . . . . ½"-13" X 1½" HEX CAP SCREW
4 . . . . . . . . . . . . . . ½"-13" HEX NUT
1 . . . . ½"-13" X 1" SOC. SET SCREW (FLAT PT)
1 . . . . . . . . . . . . . SPACER – SPRING
1 . . . . . . . . . . .½" ROLL PIN X 2" LONG
1 . . . . . . . . . . . . . ROLLER - 1¼" (751)
1 . . . . . . . . . . . . . ROLLER - 1½" (751)
1 . . . . . . . . . SHOULDER SCREW, ½" X 2"
34..........2-1501-4 ........1 ...........3⁄8"-16 HEX NUT (LOCK)
35. . . . . . . . . . . 451-25 . . . . . . . . . 1 . . . . . . . . . . ½" FLAT WASHER (SAE)
36..........2-1401-4 ........1 .......5⁄8"-11" HEX NUT, NYLON INSERT
37. . . . . . . . . . . 751-12 . . . . . . . . . 1 . . . . . . . . . . . DECAL SET (3 PIECES)
38........... 88-39..........1 ..............GREASE FITTING
39. . . . . . . . . . . 77-017 . . . . . . . . . 2 . . . . . . . . . . .WASHER – FLAT, 3⁄4 SAE