Exploded Views and Parts Lists............................. 30–33
Schematic Diagrams and Parts Lists .....................34–38
Bending Shoes and Roller Supports ...................... 39–43
Safety
Safety is essential in the use and maintenance of
Greenlee tools and equipment. This instruction manual
and any markings on the tool provide information for
avoiding hazards and unsafe practices related to the
use of this tool. Observe all of the safety information
provided.
Purpose
This manual is intended to familiarize all personnel with
the safe operation and maintenance procedures for the
following Greenlee tool:
555®-22 Electric Bender, with Serial Code AAN
Keep this manual available to all personnel.
Replacement manuals are available upon request at no
charge.
Description
The Greenlee 555®-22 Electric Bender is intended to
bend 1/2" to 2" conduit and pipe.
Bending shoe groups are available to accommodate the
following types: Electrical Metallic Tubing, Intermediate
Metallic Conduit, Rigid Conduit, PVC-Coated Rigid
Conduit, and Schedule 40 Pipe. The shoe groups are
shown in the Bending Attachment Groups section of this
manual.
In addition to the 555®-22, this manual also applies to
the following accessories:
• EMT Shoe Group (includes accessories for bending
Electrical Metallic Tubing)
•IMC Shoe Group (includes accessories for bending
Intermediate Metallic Conduit)
• Rigid Shoe Group (includes accessories for bending
Rigid Conduit and Schedule 40 Pipe)
All specifications are nominal and may change as design improvements occur. Greenlee Textron Inc. shall not be liable for damages
resulting from misapplication or misuse of its products.
Mobil is a registered trademark of Mobil Oil Corporation.
Greenlee / A Textron Company24455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
KEEP THIS MANUAL
Page 3
IMPORTANT SAFETY INFORMATION
SAFETY
ALERT
SYMBOL
This symbol is used to call your attention to hazards
or unsafe practices which could result in an injury or
property damage. The signal word, defined below,
indicates the severity of the hazard. The message
after the signal word provides information for
preventing or avoiding the hazard.
Immediate hazards which, if not avoided, WILL
result in severe injury or death.
555®-22 Electric Bender
Electric shock hazard:
• Connect the power cord to a 220
volt, 15 amp receptacle on a
ground fault protected circuit only.
See Grounding Instructions.
• Do not modify the power cord or
plug.
• Inspect the power cord before use.
Repair or replace the cord if
damaged.
• Disconnect from power before
servicing.
Failure to observe this warning could
result in severe injury or death.
Hazards which, if not avoided, COULD result in
severe injury or death.
Hazards or unsafe practices which, if not avoided,
MAY result in injury or property damage.
Read and understand all of the
instructions and safety information
in this manual before operating or
servicing this tool.
Failure to observe this warning will
result in severe injury or death.
Do not use this tool in a hazardous
environment. Hazards include
flammable liquids, gases, or other
materials. Using this tool in a hazardous environment can result in a
fire or explosion.
Failure to observe this warning will
result in severe injury or death.
• Do not expose to rain.
• Do not use in wet or damp
locations.
Failure to observe these warnings
could result in severe injury or death.
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection could
result in serious eye injury from
flying debris.
Do not remove guards.
Failure to observe this warning could
result in severe injury or death.
Greenlee / A Textron Company34455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 4
555®-22 Electric Bender
IMPORTANT SAFETY INFORMATION
Extension cords:
• Use only three-wire, 12-gauge
extension cords that have threeprong grounding-type plugs and
three-hole receptacles that accept
the tool’s plug.
• Do not use extension cords that
are longer than 30 m (100').
• Repair or replace damaged
extension cords.
Failure to observe these warnings
could result in severe injury or death.
Make sure that the handle is properly installed and
secured with the safety spring clips and snap pins
before lifting or moving the bender. An improperly
installed handle could allow the bender to fall,
injuring nearby personnel.
Failure to observe this warning could result in
severe injury or death.
Do not use as a step or ladder.
• Conduit moves rapidly as it is bent. The path of
the conduit must be clear of obstructions. Be sure
clearance is adequate before starting the bend.
• Do not operate the bender while wearing loose
clothing. Loose clothing can get caught in moving
parts.
• Inspect the bender before use. Replace worn,
damaged or missing parts with Greenlee replacement parts. A damaged or improperly assembled
component could break and strike nearby personnel.
• Some bender parts and accessories are heavy
and may require more than one person to lift and
assemble.
• Use this tool for the manufacturer’s intended
purpose only. Use other than that which is
instructed in this manual can result in injury or
property damage.
Failure to observe these precautions may result in
injury or property damage.
Pinch points:
Keep hands away from bending
shoe, rollers and conduit when
bender is in use.
Failure to observe this warning could
result in severe injury or death.
Unplug the bender before changing accessories.
Accidental startup could result in serious injury.
Greenlee / A Textron Company44455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 5
Grounding Instructions
ReceptaclePlug
Electric shock hazard:
• Do not modify the plug provided
with the tool.
• Connect this tool to a grounded
receptacle on a 15 amp ground
fault protected circuit.
Failure to observe this warning could
result in severe injury or death.
555®-22 Electric Bender
This tool must be grounded. In the event of a malfunction or breakdown, an electrical ground provides a path
of least resistance for the electric current. This path of
least resistance is intended to reduce the risk of electric
shock.
This tool’s electric cord has a grounding conductor and
a grounding plug as shown. Do not modify the plug.
Connect the plug to a corresponding GFCI-protected
receptacle that is properly installed and grounded in
accordance with all national and local codes and
ordinances.
Do not use an adapter.
NEMA 6-15
Greenlee / A Textron Company54455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 6
Identification
555®-22 Electric Bender
1
2
3
4
5
6
Specifications
Height.................................................................................................... 1118 mm (44")
Width.................................................................................................... 724 mm (28.5")
Depth ................................................................................................... 521 mm (20.5")
Mass/Weight (bender without shoes or roller supports)....................... 118 kg (260 lb)
Power Supply....................................................................................220 VAC, 15 amp
Operating Conditions
Capacity ............................................................... 1/2" to 2" conduit, schedule 40 pipe
8
7
555®-22 Electric Bender
1. Handle
2. Pendant
3. Protractor
4. Main Shaft
5. Bending Shoe
Temperature......................................................–20 °C to 49 °C (–5 °F to 120 °F)
Relative Humidity ..................................................................................... 0 to 98%
6. 1-1/2" to 2" Roller Support
7. 1/2" to 1-1/4" Roller Support
(in storage position)
8. Bending Instructions Decal
9. Circuit Breaker (ON/OFF switch)
9
GFCI-protected receptacle
Greenlee / A Textron Company64455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 7
Bending Attachment Groups
555®-22 Electric Bender
RIGID
1
34
28007: 1/2" to 1-1/4" IMC
1/2" to 2" Rigid Steel
1/2" to 2" Schedule 40 Pipe
UPC No.
Key78-3310-Description
100571Bending shoe for 1/2" to 1-1/4"
200936Roller support unit for 1/2" to 1-1/4"
317937Bending shoe for 1-1/2" to 2"
417984Roller support unit for 1-1/2" to 2"
2
IMC
1
3
26330: 1-1/2" to 2" IMC
UPC No.
Key78-3310-Description
125263Bending shoe for 1-1/2"
225268Bending shoe for 2"
325273Roller support unit for 1-1/2" to 2"
23818Storage box
2
EMT
21
4
5
23802: 1/2" to 2" EMT
UPC No.
Key78-3310-Description
117944Bending shoe for 1/2" to 1-1/4"
217986Roller support unit for 1/2" to 1-1/4"
323499Bending shoe for 1-1/2"
423505Bending shoe for 2"
523541Roller support unit for 1-1/2" to 2"
23818Storage box
3
PVC-COATED RIGID
1
34
37279: 1-1/2" to 2" 40 Mil PVC-Coated Rigid
UPC No.
Key78-3310-Description
100573Bending shoe for 1/2" to 1-1/4"
200946Roller support unit for 1/2" to 1-1/4"
337281Bending shoe for 1-1/2" to 2"
437282Roller support unit for 1-1/2" to 2"
23818Storage box
2
Greenlee / A Textron Company74455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 8
Setup
555®-22 Electric Bender
2. Mount the appropriate support unit onto the leg of
the bender and install the hinge pin, as shown.
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection could
result in serious eye injury from
flying debris.
Unplug the bender before changing accessories.
Accidental startup could result in serious injury.
1. Slide the appropriate bending shoe onto the shaft of
the main sprocket, as shown. Align the four drive
studs on the back of the shoe with the four holes in
the main sprocket.
Note: 1-1/2" and 2" EMT and IMC bending shoes
have only three drive studs.
Installing a Bending Shoe
Roller Support Unit Installed
Install pin
3. Mark the conduit. See the decals on the bender or
the Additional Bending Instructions section of this
manual.
4. Place the bender in either the vertical or horizontal
bending position.
Greenlee / A Textron Company84455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 9
Operation
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection could
result in serious eye injury from
flying debris.
Pinch points:
Keep hands away from bending
shoe, rollers and conduit when
bender is in use.
Failure to observe this warning could
result in severe injury or death.
555®-22 Electric Bender
BENDING CONDUIT
1. Plug the cord into an appropriate receptacle. See
Grounding Instructions.
2. Press BEND or UNLOAD until the shoe is 5° to 10°
before the 0° starting point.
3. Load the conduit so that the bending mark is aligned
with the front edge of the shoe hook, as illustrated.
Loading the Conduit
Do not operate the bender while wearing loose
clothing. Loose clothing can get caught in moving
parts.
Failure to observe this warning could result in
severe injury or death.
4. See the instruction decal for the appropriate bend
angle.
Greenlee / A Textron Company94455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 10
Operation (cont’d)
555®-22 Electric Bender
5. Bend the conduit:
If bending 1-1/2" to 2" EMT or IMC:
a. Place one foot on the loading pedal, as shown.
Engaging the Loading Pedal
(for 1-1/2" to 2" EMT or IMC Only)
If bending any other size or type of conduit:
a. Press and hold BEND.
b. Release the switch as you approach the desired
angle of bend.
c. Press BEND momentarily until the bend is
complete.
6. Press UNLOAD. The shoe will rotate backward.
Note: If bending EMT or IMC, the roller support unit
will drop to its original position.
7. Twist the conduit to release it from the hook. Remove the conduit.
8. Press and hold UNLOAD until the shoe has rotated
back to 0°.
b. Press and hold BEND. The bender will pull up
the roller support. When the roller support
contacts the stop, remove your foot from the
loading pedal.
c. Release the switch as you approach the desired
angle of bend.
d. Press BEND momentarily until the bend is
complete.
Greenlee / A Textron Company104455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 11
Operation (cont’d)
555®-22 Electric Bender
ADJUSTING THE SQUEEZE
When bending 1-1/2" to 2" EMT or IMC, the roller
support must be engaged so that it contacts the conduit;
the pressure against the conduit is the “squeeze.”
Due to variations in conduit, the standard adjustment
may provide too much or too little squeeze. If the conduit
develops excessive side marking when bent, the
squeeze is set too high. If the conduit becomes excessively oval or wrinkled, the squeeze is set too low.
1. Use a screwdriver to loosen the set screws.
2. Use a wrench to rotate both adjusting bolts 1/2 turn
clockwise to INCREASE squeeze or 1/2 turn counterclockwise to DECREASE squeeze.
Note: In order to distribute the load evenly, adjust
both bolts to the same setting. See the illustration.
3. Tighten the set screws.
Adjusting the Squeeze
Standard Squeeze Setting
Adjusting bolts are
at the same setting.
5/8"5/8"
Adjusting bolts are
at different settings.
INCORRECT
Greenlee / A Textron Company114455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 12
Illustrated Bending Glossary
back-to-back bend — any U-shaped bend formed by two
parallel 90° bends with a straight section of conduit or pipe
between the bends.
center-to-center distance — the distance between the
successive bends that make up an offset or a three-bend
saddle.
developed length — the actual length of pipe that will be
bent; see distance “d” in the illustration at left.
555®-22 Electric Bender
r
d
a
Offset Height
gain — the difference between the straight-line distance
(a + a) and the shorter radial distance, (d) where:
θ = angle of bend
a
r = the centerline bending radius of the bending shoe
kick — single bend of less than 90°
leg length — the distance from the end of a straight
section of conduit or pipe to the bend; measured from the
end to the outside edge of the conduit or pipe.
offset bend — two opposite bends with the same degree
of bend; used to avoid an obstruction.
offset height — the distance between the two legs of
an offset bend, measured perpendicular to the two legs;
also called amount of offset and depth of offset.
rise — the distance from the end of a straight section of
conduit or pipe to the bend; measured from the end to the
center line of the conduit or pipe. Also called stub or
stub-up.
saddle — a three-bend or four-bend combination; used
to avoid an obstruction.
shrink — the amount of conduit “lost” when laying out
an offset bend working toward an obstruction; see the
explanation under Offset Bending in this manual.
springback — the amount, measured in degrees, that a
conduit or pipe tends to straighten after being bent.
Greenlee / A Textron Company124455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 13
Bending Instructions
555®-22 Electric Bender
90° STUBS
1. Measure the length of the required stub.
2. See the Minimum Stub Length formula on the
Deduct Table. The required stub must be equal to
or longer than the Minimum Stub Length.
3. Measure and mark the stub length on the conduit.
This is Mark 1. Subtract the Deduct from this mark
and make a new mark. This is Mark 2.
4. Align Mark 2 with the front edge of the hook and
bend the conduit.
Notes:
When the operator presses “UNLOAD”, the conduit may
spring back a few degrees. Compensate by overbending
as shown in the Scale Reading Table.
°
The rigid shoe can make a 180
All other shoes bend to 90
CENTER-TO-CENTER DISTANCE = OFFSET HEIGHT x MULTIPLIER
OFFSET ANGLE10°15°22-1/2°30°45°
MULTIPLIER5.83.92.62.01.4
Figures are approximate
HEIGHT
LENGTH
OBSTRUCTION
X Table
CONDUIT SIZE1/23/411-1/41-1/22
“X”3-1/163-1/163-3/1644-1/44-1/2
Figures are approximate
Greenlee / A Textron Company144455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 15
Additional Bending Instructions
555®-22 Electric Bender
The following drawings and bending tables are intended
to provide the information necessary to accomplish the
most common types of bends. The Bending Tables
contain conduit marking information.
STUBS
1. Select the size and type of conduit. Determine the
height of stub and the angle to be used.
2. Find the table that corresponds to the size and type
of conduit selected in Step 1.
3. Under the column labeled ANGLE, find the appropri-
ate angle.
4. Find the row labeled Y. In the row at the top of the
page, find the height (H) of the stub. The number
shown at the intersection of row Y and column H is
the distance Y. Place the bending mark Y inches
from the end of the conduit.
5. Bend the conduit.
HEIGHT
ANGLE
Y
OFFSETS
An offset is used to route the conduit around an obstruction. To make an offset, two equal bends are required.
The distance between the two bends is the center-tocenter distance.
When working past an obstruction, it is necessary to
determine the location of the first bend. The center-tocenter distance is then used to determine the location of
the second bend. When working toward an obstruction,
it is necessary to determine the location of the second
bend. The center-to-center distance is then used to
determine the location of the first bend.
Working Past an Obstruction
1. Select the size and type of conduit. Measure the
height of the obstruction and the distance labeled
LENGTH. Determine the angle to be used.
2. Find the table that corresponds to the size and type
of conduit selected in Step 1.
3. To the right of the size and type of conduit, find the
dimension labeled X. Subtract X from LENGTH.
Place the first bending mark this distance from the
end of the conduit.
4. Under the column labeled ANGLE, find the appropriate angle. Find the row labeled L1. In the row at the
top of the page, find the height (H) of the offset. The
number shown at the intersection of row L1 and
column H is L1. Place the second bending mark L1
inches from the first bending mark.
5. Bend the conduit.
LENGTH
MARK 1
START OF
FIRST
BEND
ANGLE
L1LENGTH – X
MARK 2
MARK
HEIGHT
OBSTRUCTION
Greenlee / A Textron Company154455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 16
Additional Bending Instructions (cont’d)
555®-22 Electric Bender
Working Toward an Obstruction
1. Select the size and type of conduit. Measure the
height of the obstruction and the distance labeled
LENGTH TO END OF SECOND BEND. Determine
the angle to be used.
2. Find the table that corresponds to the size and type
of conduit selected in Step 1.
3. Under the column labeled ANGLE, find the appropriate angle. Find the row labeled Z. In the row at the
top of the page, find the height (H) of the offset. The
number shown at the intersection of the Z row and
the 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.
4. In the same column, find the row labeled L1. Place
the second bending mark L1 inches from the first
bending mark.
5. Bend the conduit.
LENGTH TO END OF SECOND BEND
THREE-BEND SADDLE
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. Determine the angle to be
used.
2. Find the table that corresponds to the size and type
of conduit selected in Step 1.
3. Under the column labeled ANGLE, find the appropriate angle. Find the row labeled Z. In the row at the
top of the page, find the height (H) of the offset. 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.
4. In the same column, find the row labeled L1. Place
the second bending mark L1 inches from the first
bending mark.
5. In the same column, find the row labeled L2. Place
the third bending mark L2 inches from the second
bending mark.
6. Bend the conduit.
MARK 1
ANGLE
L1LENGTH – Z
MARK 2
HEIGHT
LENGTH TO CENTER
HEIGHT
MARK 1
L1LENGTH – Z
MARK 2
ANGLE
L2
MARK 3
Greenlee / A Textron Company164455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 17
Additional Bending Instructions (cont’d)
555®-22 Electric Bender
FOUR-BEND SADDLE
1. Select the size and type of conduit. Measure the
height of the obstruction, the distance labeled
LENGTH, and the distance labeled STRAIGHT
SECTION. Determine the angle to be used.
2. Find the table that corresponds to the size and type
of conduit selected in Step 1.
3. Under the column labeled ANGLE, find the appropriate angle. Find the row labeled Z. In the row at the
top of the page, find the height (H) of the offset. The
number shown at the intersection of the Z row and
the appropriate H column is Z. Subtract Z from the
LENGTH. Place the first bending mark this distance
from the end of the conduit.
4. In the same column, find the row labeled L1. Place
the second bending mark L1 inches from the first
bending mark.
5. In the same column, find the row labeled L2. Add L2
to the STRAIGHT SECTION. Place the third bending
mark this distance from the
first bending mark.
6. Make the final bending mark L1 inches from the third
bending mark.
7. Bend the conduit.
U-BENDS
1. Select the size and type of conduit. Determine the
LENGTH and the HEIGHT.
2. Find the table that corresponds to the size and type
of conduit selected in Step 1.
3. Under the column labeled ANGLE, find 90°.
4. Find the row labeled Y. In the row at the top of the
page, find the height (H) that corresponds to the
LENGTH. The number shown at the intersection of
the Y row and the appropriate H column is the
distance Y. Place the bending mark Y inches from
the end of the conduit.
5. Find the row labeled L1, and go to the right to find
the height (H) that corresponds to the HEIGHT.
6. The number shown at the intersection of the L1 row
and the appropriate H column is L1. Place the
second bending mark L1 inches from the first mark.
7. Bend the conduit.
LENGTH
LENGTH
LENGTH – Z
MARK 1
STRAIGHT
SECTION
HEIGHT
L2 + STRAIGHT SECTION
L1L1
MARK 2MARK 3
ANGLE
MARK 4
HEIGHT
@ ???
HEIGHT
Y
MARK 1
L1
MARK 2
Greenlee / A Textron Company174455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Greenlee / A Textron Company244455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 25
555®-22 Electric Bender
Handle Removal and Replacement
The handle of the 555®-22 is designed to be removable.
This feature is convenient when performing complex
bending, and makes it easy to replace a damaged
handle.
Removal
1. Place the bender in the upright position.
2. Release the spring clip on the safety snap pin (79).
3. Remove the pin from the handle (80) and the sleeve
of the frame (1).
4. Repeat Steps 1 through 3 for the other end of the
handle.
5. Lift the handle to remove.
Replacement
1. Insert the handle (80) into the sleeves of the frame (1).
2. Align the holes in the handle with the holes in the
sleeves.
3. Insert the safety snap pin (79). Ensure that the pin
goes through the handle and the sleeve on the
frame (1).
4. Engage the safety spring clip over the end of the pin.
Ensure that the loop on the clip is completely around
the pin.
5. Repeat Steps 2 through 4 for the other end of the
handle.
Transportation
Make sure that the handle is properly installed and
secured with the safety spring clips and snap pins
before lifting or moving the bender. An improperly
installed handle could allow the bender to fall,
injuring nearby personnel.
Failure to observe this warning could result in severe
injury or death.
The only proper way to lift this bender is by attaching a
nylon or polyester sling around the storage spindle. The
sling should extend between the handle and main frame
of the bender so that the handle acts as a guide for the
sling, as shown.
Make sure that all components used to lift this bender
are properly rated for the 159 kg (350 lb) weight. Use a
ramp to load and unload from a truck or other vehicle
that is not equipped with a lift gate.
Transporting Bender
79
Removing or Replacing Handle
80
1
Greenlee / A Textron Company254455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 26
Maintenance
There is no need for periodic flushing and replacing of
lube in the bender gear box since it is sealed and locked
tight. However, if the box is opened for repair and the
lube is lost or contaminated by dirt, then the box and
parts should be flushed out and filled with 26 fluid
ounces of Mobil® 634 synthetic oil.
Flushing should be accomplished with kerosene, which
is a petroleum hydrocarbon that does not affect seals.
Note: Aromatic hydrocarbons such as benzine,
chlorinated solvents such as carbon-tetrachloride, and
ketones such as acetone should never be used for
flushing as they are solvents for rubber. They are also
harmful to the environment.
Disconnect this tool when not in use,
before servicing or adjusting, and
when changing shoes or conduit
rollers and supports.
Failure to observe this warning could
result in severe injury or death.
555®-22 Electric Bender
With the eight reductor mounting bolts (22, 24) loose,
rotate the eccentric cam with a 1/2" square drive to
tension the chain. Torque the eight reductor mounting
bolts to 47 Newton-meters (35 ft-lb).
Chain Adjustment
Both chains have to be adjusted if the final drive #60
chain is to be reset. Refer to the Exploded View and
Parts List.
1. Remove the front cover (38) and upper rear guard
(37).
2. Loosen the eight mounting bolts for the reductor
(19). Remove the eccentric cam and move the
reductor to create chain slack.
3. Remove the four retaining screws for eccentric
adjustment. Rotate to remove slack from the chain
and align with one of the two sets of holes in the
frame. Remount the eccentric with the four bolts.
4. Slide the reductor in slotted mounting holes to the
retension chain. Set tension with the eccentric cam.
#60 HT Final
Drive Chain
Two eccentric cam mounting
holes provided for varying
Reductor
Mounting Bolt
1/2" Square
Rotate eccentric cam counterclockwise.
Apply 20 Newton-meters (15 ft-lb) of torque to set
chain tension. Then torque reductor mounting bolts
to 47 Newton-meters (35 ft-lb).
adjustment positions
Eccentric Cam
Tab on
Reductor Bracket
Greenlee / A Textron Company264455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Positioning Plate on
Eccentric Housing,
Counter Shaft
Four 1/4" Flange
Mounting Screws
Page 27
Maintenance (cont’d)
555®-22 Electric Bender
Electrical Control Unit Removal
Disconnect power supply before
servicing bender. Servicing to be done
only by trained service technician.
Failure to observe this warning could
result in severe injury or death.
1. Remove the cover retained by ten 5/16" hex screws.
2. Disconnect the pendant switch plug from the circuit
board and remove through the cord grip.
3. Remove two hex mounting screws, one on each
side.
3/8" Hex
Mounting
Screw
4. Remove the motor leads, power cord ground wire,
and neutral wire before the control unit can be totally
removed from the bender.
Motor Leads
Ground Wire
Electrical control removed from bender
Greenlee / A Textron Company274455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 28
555®-22 Electric Bender
Troubleshooting
ProblemProbable CauseProbable Remedy
Bender will not operate.No voltage.Check supply voltage circuit operation.
Check that switch is on.
Bends are overbent a few
degrees.
Bends are underbent a few
degrees.
Too much squeeze on 1-1/2" or 2"
EMT or IMC conduit.
Unusual conduit characteristics.Bend smaller angle to compensate.
Too little squeeze on 1-1/2" or 2"
EMT or IMC conduit.
Unusual conduit characteristics.Bend larger angle to compensate.
Back squeeze off per adjustment
instructions.
Increase squeeze per adjustment
instructions.
Greenlee / A Textron Company284455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 29
Troubleshooting (cont’d)
555®-22 Electric Bender
The following flow chart shows the suggested troubleshooting procedures when the bender trips the switch/
circuit breaker. It by no means encompasses all possible
problems or solutions.
Electric shock hazard:
• Contact with live circuits can result
in severe injury or death.
• Some troubleshooting steps
require power to the bender. This
type of troubleshooting step should
only be performed at authorized
Greenlee service centers by
personnel who are familiar with
safe troubleshooting procedures.
Failure to observe these warnings
could result in severe injury or death.
Trips 555®-22 Switch/Circuit Breaker
Are the proper roller supports and
shoe groove being used for the
type and size of conduit being
bent?
YES
Is the current on the 220 VAC line
exceeding 20 amps?
YES
Is the DC current to the motor
exceeding 17 amps?
NO
When BEND is pressed, is the
voltage sent to the motor
220 VDC (approx.)?
YES
Are connectors corroded?
NO
NO
NO
YES
NO
YES
Follow directions in
instruction manual.
Replace circuit
breaker.
Replace motor.
Replace bridge
rectifier (918 5997.2).
Clean the connectors.
Clean contacts or replace
contactor.
Greenlee / A Textron Company294455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Page 30
Exploded View — 555®-22 Electric Bender
26
27
Note: Key supplied
with item #19
(reductor).
24
37
59
36
555®-22 Electric Bender
25
34
32
62
39
22
47
77
41
54
19
80
71
18
28
30
79
50
52
17
79
20
53
31
57
21
42
12
14
11
9
7
43
58
40
46
2
4
5
44
35
7
10
72
70
1
29
8
23
54
49
11
78
14
13
24
62F
62A
62D
62E
Greenlee / A Textron Company304455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
62B
62C
16
15
3
6
38
48
Page 31
Parts List — 555®-22 Electric Bender
KeyPart No.DescriptionQty
1503 9742.7Weldment, main frame ............................................................... 1