Greenlee 853 User manual

853
Quad Bender™
SERVICE MANUAL
Read and understand all of the instructions and
safety information in this manual before operating
or servicing this tool.
999 3877.4 © 2005 Greenlee Textron Inc. SB 285 REV 2 2/05

Greenlee / A Textron Company 24455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Table of Contents
Safety ............................................................................. 2
Purpose .......................................................................... 2
Other Publications .......................................................... 2
Important Safety Information .......................................3-4
Handle Removal and Replacement ............................... 5
Transporting the Bender ................................................ 5
Maintenance................................................................6-8
Troubleshooting ........................................................9-11
Exploded Views and Parts List................................12-19
Electrical Control Layout .............................................. 20
I/O Electrical Schematic ..........................................21-22
PCB Layout .................................................................. 23
Power Generation Unit ............................................24-27
Purpose
This manual is intended to familiarize all personnel
with the safe service procedures for the following
Greenlee tools:
853 Quad Bender
(beginning with Serial Number ADW0000)
Keep this manual available to all personnel.
Replacement manuals are available upon request
at no charge.
The Greenlee 853 Quad Bender is protected by
U.S. Patent No. 5,226,305.
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.
Other Publications
Instruction Manual: Publication 999 3876.6 (IM 1527)

Greenlee / A Textron Company 34455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
IMPORTANT SAFETY INFORMATION
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 prevent-
ing or avoiding the hazard.
Hazards or unsafe practices which, if not avoided,
MAY result in injury or property damage.
Hazards which, if not avoided, COULD result in severe
injury or death.
Immediate hazards which, if not avoided, WILL result
in severe injury or death.
SAFETY
ALERT
SYMBOL
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 expose to rain.
•Do not use in wet or damp
locations.
Failure to observe these warnings
can 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.
Do not use this tool in a hazardous
environment. Hazards include
flammable liquids, gases, or other
materials. Using this tool in a haz-
ardous environment can result in a
fire or explosion.
Failure to observe this warning will
result in severe injury or death.
Electric shock hazard:
•Connect the power cord to a 120
volt, 20 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.

Greenlee / A Textron Company 44455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
IMPORTANT SAFETY INFORMATION
•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 replace-
ment parts. A damaged or improperly assembled
component could break and strike nearby person-
nel.
•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 can result in
injury or property damage.
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 can result in severe
injury or death.
Unplug the bender before changing accessories.
Accidental startup can result in serious injury.
Pinch points:
Keep hands away from bending
shoe, rollers and conduit when
bender is in use.
Extension cords:
•Use only three-wire, 12-gauge
extension cords that have three-
prong 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
can result in severe injury or death.

Greenlee / A Textron Company 54455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Handle Removal and Replacement
The handle of the 853 is 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.
3. Remove the pin from the handle and the sleeve of
the frame.
4. Repeat for the other end of the handle.
5. Lift the handle to remove.
Replacement
1. Insert the handle into the sleeves of the frame.
2. Align the holes in the handle with the holes in the
sleeves.
3. Insert the safety snap pin. Ensure that the pin goes
through the handle and the sleeve on the frame.
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 for the other end of the handle.
Transporting the Bender
Make sure that all components used to lift this bender
are properly rated for the 202 kg (445 lb) weight. Use
a ramp to load and unload the bender from a truck or
other vehicle that is not equipped with a lift gate.
To lift the bender, loop a nylon or polyester sling through
the spindle. Thread one end of the sling through the
length of the spindle as shown. Securely fasten to lifting
device.
Lifting Bender
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 can result in severe
injury or death.
safety
snap
pin
Removing or Replacing Handle
Lift bender using a nylon or polyester sling through
the spindle. Do not attempt to lift bender by the
handles. Make sure all lifting components are
properly rated for the 202 (445 lb) weight.
Failure to observe this warning can result in severe
injury or death.

Greenlee / A Textron Company 64455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
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.
Chain Adjustment
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.
#60 HT Final
Drive Chain
Four 1/4" Flange
Mounting Screws
Positioning Plate on
Eccentric Housing,
Counter Shaft
Eight Reductor
Mounting Bolts
(four on reverse side)
Tab on
Reductor Bracket
Eccentric Cam
1/2" Square
Reductor
Mounting Bolt
Two eccentric cam mounting
holes provided for varying
adjustment positions.
Rotate eccentric cam counterclockwise.
Apply 20 Newton-meters (15 foot-pounds) of torque
to set chain tension. Then torque reductor mounting
bolts to 47 Newton-meters (35 foot-pounds).
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.
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).
Maintenance

Greenlee / A Textron Company 74455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Maintenance (cont’d)
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.
4. Remove the motor leads, power cord ground wire,
and neutral wire before the control unit can be totally
removed from the bender.
3/8" Hex
Mounting Screw Line Connection at Circuit Breaker
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection can
result in serious eye injury from
flying debris.
Electric shock hazard:
Disconnect the unit from power
before servicing.
Failure to observe this warning can
result in severe injury or death.
Roller Support Maintenance
Clean and lubricate roller supports every 6 months, or
more often if the bender is used in dusty or corrosive
environments.
Refer to the exploded view of the bridge assembly when
performing the following procedures.
1" Roller Support
1. Disconnect the bender from the power source.
2. Remove shoulder bolt (40) and nut (41). Remove
1" arm (1).
3. Remove retaining ring (39). Remove 1" roller (5).
4. Spray a motorcycle chain or high quality axle grease
on shaft of the 1" arm (1).
5. Lubricate the shoulder bolt (40).
6. Wipe away any excess lubricant.
7. Assemble in reverse order.

Greenlee / A Textron Company 84455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
1-1/4" to 2" Roller Support
1. Disconnect the bender from the power source.
2. Remove the shoe and bridge assembly.
3. Place bridge on stable work surface. Use a pair of
needlenose pliers to disconnect the spring (48) from
the hole in the bridge beneath the roller support unit.
4. Remove the squeeze adjustment arm screw (38)
and arm (32).
5. Remove the three button head cap screws (37) and
adapter sleeve (33).
6. Place one hand under the support arm (2) to support
the weight of the roller support unit. Remove the
eccentric shaft (4).
Note: You may need to rotate the eccentric shaft to
remove it.
7. Lift bridge weldment (3) off of roller assembly.
8. To separate 1-1/4" and 1-1/2" roller assemblies:
Loosen the sleeve set screw (36) and remove the
1-1/4" to 1-1/2" pivot roller shaft (28). Remove the
sleeve (30).
9. On the 1-1/4" roller group:
•Remove two hex head screws (34). Remove the
outer roller plate (14).
•Remove the tail roller (7) and lead roller (6).
10. On the 1-1/2" roller group:
•Remove two hex head screws (34). Remove the
outer roller plate (14).
•Remove the tail roller (10).
•Remove all components of the split roller
assembly.
Maintenance (cont’d)
Pinch points:
Use both hands to hold the lead and
tail rollers to prevent the rollers from
pivoting.
Failure to observe this precaution
could result in injury or property
damage.
11. On the 2" roller group:
• Loosen the sleeve set screw (36) and press out
the 2" pivot shaft (29). Remove the sleeve (31).
•Remove the hex head screw (34). Remove one
retaining ring (35) from the tail roller shaft (26).
Remove outer roller plate (15).
•Remove the tail roller (9) and center roller (8).
•Remove all components of the split roller
assembly.
12. Clean off all of the grease and dirt.
13. Inspect each item. Replace any worn, damaged,
or missing items.
14. Lubricate all working surfaces with a high-quality
grease.
15. Replace all components in reverse order, noting the
following:
•On split roller groups: To ease the assembly of
the split roller subassemblies, begin by slipping
the O-rings onto the side plates. Assemble the
split roller subassemblies as shown, then slip the
O-rings into their correct positions.
•On the 2" roller group only: After replacing any
split roller components, add or remove shim
washers (42, 43, or 44) as needed.
•On the 1-1/2" roller group: Install the two Belleville
washers (21) so that the inside diameters contact
each other.
•Use Loctite®271 on the hex head screws (34).
Torque to 55 to 61 Nm (40 to 45 ft-lb).
16. Position the roller support arm (2) as shown.
Assemble the roller groups to the support arm.
17. Place the bridge weldment (3) over roller assembly.
18. Insert the eccentric shaft (4).
Note: You may need to rotate the eccentric shaft to
get it to seat completely.
19. Install the adapter sleeve (33) and three button head
cap screws (37).
20. Install the adjustment arm (32) and adjustment arm
screw (38).
21. Attach the spring (48) to the holes in the bridge
beneath the roller support unit.

Greenlee / A Textron Company 94455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Troubleshooting
Problem Probable Cause Possible Remedy
Bender will not operate. No voltage. Check supply voltage circuit operation.
Check that switch is on.
Bends are overbent a few Pointer is adjusted wrong. Loosen pointer locking screws and
degrees. rotate clockwise to compensate.
Retighten locking screws.
Too much squeeze on 1-1/4", 1-1/2" Back squeeze off per adjustment
or 2" EMT, IMC or Rigid Aluminum instructions.
conduit.
Unusual conduit characteristics. Bend smaller angle to compensate.
Bends are underbent a few Pointer is adjusted wrong. Loosen pointer locking screws and
degrees. rotate counterclockwise to compen-
sate. Retighten locking screws.
Too little squeeze on 1-1/4", 1-1/2" Increase squeeze per adjustment
or 2" EMT, IMC or Rigid Aluminum instructions.
conduit.
Unusual conduit characteristics. Bend larger angle to compensate.
Bender stops bending. Current overload. Rigid conduit is being bent with roller
support engaged. Retract roller
assembly. Conduit is bent past 105°
and hook has contacted unbent conduit.
Press UNLOAD and remove overbent
conduit.

Greenlee / A Textron Company 10 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Troubleshooting (cont’d)
The following flow charts show the suggested trouble-
shooting procedures for some bender problems. They by
no means encompass 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.
NO Check and replace
pendant switch.
YES
When amber or red LED is on, is
12 VDC measured at large relay
coil on PGU (where relay wire
unit connects)?
Does amber or red LED light
when switch is pressed?
Bender only runs in one direction
NO
YES
Replace 918 6645.6 relay.
Replace PGU. Replace I/O.
Move six-wire
connector on PGU
from “to I/O” to
“test.” Alternately
press BEND and
UNLOAD. Does
yellow “direction”
LED on PGU turn
on and off?
NOYES
YES
YES
YES
YES
YES
Won’t bend
Replace PGU.
NO
NO
NO
NO
Does the green LED on
the PGU light? Replace PGU.
Does amber or red LED
on IO light when BEND
or UNLOAD is pressed?
Unplug pendant or IO and
check switch for continuity.
If ok, replace IO.
Does the green LED on
the I/O BOARD light? Replace transformer unit.
Is 115 VAC measured at
PGU BOARD input?
Plugged into dead circuit,
bad power cord, or
switch is bad or off.
NO
Does relay on IO
operate when BEND or
UNLOAD is pressed? Replace IO.
YES Use 115 VAC.
NO
YES
NO
Replace pendant
switch.
Does bender stop when the
pendant is unplugged?
Is the supply line voltage low?
Replace PGU.
Won’t stop
YES
YES
NO
YES
NO
Is the current on the 115 VAC
line exceeding 20 amps?
Is the DC current to the motor
exceeding 17 amps?
When BEND is pressed, is the
voltage sent to the motor 20 to 50
volts over the AC line voltage?
Are connectors corroded?
Replace PGU.
Follow directions in
instruction manual.
Replace circuit
breaker.
Replace motor.
Replace
bridge rectifier
(918 5997.2).
Clean.
NO
YES
NO
YES
Trips circuit breaker
NO
Are the proper support rollers
and shoe groove being used for
the type and size of conduit
being bent?

Greenlee / A Textron Company 11 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
1. With bender unplugged, switch six-wire connector on
PGU from “To I/O” to “Test.”
2. Plug unit in.
3. Press BEND. Contactor on I/O will activate.
•If not, check for 12 VDC at contactor coil
—If 12 VDC is present, replace contactor
918 6645.6—else replace I/O
•If bender runs, replace PGU.
•On PGU near “test” connector:
Green “Power” LED is ON
Yellow “Direction” LED is OFF
Red “PWM” LED slowly turns dimly on
If not, replace I/O.
4. Press UNLOAD. Contactor on I/O will activate.
•If not, check for 12 VDC at contactor coil
—If 12 VDC is present, replace contactor
918 6645.6—else replace I/O
•On PGU near “test” connector:
Green “Power” LED is ON
Yellow “Direction” LED is ON
Red “PWM” LED slowly turns dimly on
If not, replace I/O.
5. Press BEND. With insulated object, carefully press
black button “S1” on PGU. Bender will run slowly.
If not, replace PGU.
Quick diagnostics for electronic problems

Greenlee / A Textron Company 12 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Exploded View — 853 Quad Bender
38
20
30 28 74
34
32
29
88
89
8
3
6
13
16
15 14 77
10
11
49
7
17
78
78
52
41
72
31
73
141
54
54
71
47
58
46
45
44
43
42
40
39
37
36
35
80 75
27
26
25
24
24 23
22
21
19
18
14 12
77
11
9
7
5
2
5
1
79
76
Note: Key supplied with item #19 (reductor)
48 70
24
59
UNLOAD
BEND
142

Greenlee / A Textron Company 13 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Key Part No. Description Qty.
1500 7275.7 Weldment, main frame ...................................................................... 1
2502 3452.8 Washer, fiber ..................................................................................... 1
3500 7277.3 Weldment, sprocket unit .................................................................... 1
5905 2410.1 Bearing, Fiberglide ø2.625 x 3.75 long ............................................. 2
6905 2414.4 Ring, retaining #5100-237 ................................................................. 1
7905 2412.8 Bearing, Fiberglide ø1.625 x 1.00 long ............................................. 2
8503 9763.0 Weldment, countershaft .................................................................... 1
9905 4023.9 Ring, retaining #5100-250 ................................................................. 1
10 503 9764.8 Shaft, counter .................................................................................... 1
11 905 2413.6 Bearing, thrust Fiberglide .................................................................. 2
12 905 4548.6 Sprocket, #40 60T ............................................................................. 1
13 905 4253.3 Sprocket, #60 14T ............................................................................. 1
14 503 9765.6 Key, countershaft .............................................................................. 2
15 905 4546.0 Chain, #60 87P.................................................................................. 1
16 905 4251.7 Masterlink, #60 .................................................................................. 1
17 905 4547.8 Sprocket, #40 13T ............................................................................. 1
18 500 8431.3 Key, reductor sprocket ...................................................................... 1
19 905 2388.1 Reductor, worm gear ......................................................................... 1
20 905 2787.9 Masterlink, #40 .................................................................................. 1
21 905 4551.6 Chain, #40 87P.................................................................................. 1
22 905 4568.0 Bolt, 3/8–16 UNC x .75...................................................................... 7
23 503 9758.3 Eccentric............................................................................................ 1
24 905 4237.1 Bolt, 3/8–16 UNC x 1.00.................................................................... 6
25 918 6973.0 Motor ................................................................................................. 1
26 905 4549.4 Conduit, Sealtight .............................................................................. 1
27 918 5214.5 Elbow, Sealtight................................................................................. 1
28 918 6683.9 Strain relief ........................................................................................ 1
29 905 1170.0 Nut, 3/4 conduit lock .......................................................................... 1
31 918 6263.9 Nut, 1/2 conduit lock .......................................................................... 1
32 503 9757.5 Axle ................................................................................................... 1
34 905 1528.5 Ring, retaining #5160-75 ................................................................... 2
35 905 5267.9 Wheel, urethane-filled ....................................................................... 2
36 503 9768.0 Guard, rear lower .............................................................................. 1
37 503 9769.9 Guard, rear upper .............................................................................. 1
38 503 9760.5 Cover, front........................................................................................ 1
39 905 1655.9 Screw, #10–16 x .50 hex head ........................................................ 31
40 905 0430.5 Screw, #6–32 x .375 Phillips ............................................................. 2
41 918 6385.6 Switch, air pax ................................................................................... 1
42 502 9708.2 Guard, switch .................................................................................... 1
43 500 7920.4 Nameplate ......................................................................................... 1
44 905 3001.2 Rivet, pop 1/8 x 1/8 drive................................................................... 4
45 500 7248.6 Decal, voltage.................................................................................... 1
46 503 0392.9 Decal, damp warning......................................................................... 1
47 503 9759.1 Cover, top .......................................................................................... 1
48 503 5191.5 Decal, safety...................................................................................... 1
Parts List — 853 Quad Bender

Greenlee / A Textron Company 14 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
49 905 3389.5 Pin, hitch............................................................................................ 1
52 905 4552.4 Lanyard ............................................................................................. 2
54 905 4335.1 Screw, 1/4 x .37 thread-forming ........................................................ 6
58 503 8974.2 Decal, circuit breaker......................................................................... 1
59 905 5323.3 Pin, Driv-Lok, 1/8 x 1/2 ...................................................................... 1
70 905 1740.7 Washer, flat ....................................................................................... 2
71 500 7935.2 Decal, instruction ............................................................................... 1
72 503 9918.7 Decal, warning (English) ................................................................... 1
73 500 0112.4 Decal, warning (French) .................................................................... 1
74 500 8380.5 Decal, proper Lifting .......................................................................... 1
75 500 3141.4 Decal, FCC Part 15 ........................................................................... 1
76 999 3576.7 Decal, technical assistance ............................................................... 1
77 905 1051.8 Ring, retaining #5100-150 ................................................................. 2
78 905 5268.7 Pin, safety snap ................................................................................. 2
79 503 9748.6 Handle, upper .................................................................................... 1
80 500 6919.5 Sleeve, axle ....................................................................................... 2
88 500 8189.6 Bracket, locator ................................................................................. 1
89 905 2646.5 Nut, 3/8" - 16 ..................................................................................... 1
141 500 7869.0 Electronic control assembly (fully assembled) .................................. 1
141A 500 7871.2 I/O control assembly ..................................................................... 1
141B 500 8357.0 Power generation unit................................................................... 1
141C 500 7867.4 Bracket, electronics (metal bracket only)...................................... 1
142 500 7887.9 Pendant control assembly ................................................................. 1
143 500 7912.3 Power cord assembly ........................................................................ 1
Key Part No. Description Qty.
Parts List — 853 Quad Bender (cont’d)

Greenlee / A Textron Company 15 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Exploded View—500 7276.6 Bridge Assembly
53
52
51
49
50
33
37
4
32
38
46
45
3
40
1
41
539

Greenlee / A Textron Company 16 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
31
13
8
35
26
34
9
27
Use slim washers #42, #43, #44
between the 2" ball (#19) and
outer plate (#15) to allow free
movement of the split roller
with no more than 1/32: axial
free play.
35
23
19
18
20
18
36
19
23
15
34
24
7
11
6
14
34
16
21
34
30 25
14
For all #34 screws:
apply a high-strength
thread-locking agent such as
Loctite 271 to the threads
and then tighten to 45 ft-lb. 10
36 47
48
12
22
17
16
17
22
29
2
28
Exploded View—500 7276.6 Bridge Assembly (cont’d)

Greenlee / A Textron Company 17 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Parts List—500 7276.6 Bridge Assembly
Key Part No. Description Qty.
1500 7239.0 1" Arm weldment ............................................................................... 1
2500 7247.1 Arm weldment ................................................................................... 1
3500 7284.6 Bridge weldment................................................................................ 1
4500 7258.7 Shaft eccentric................................................................................... 1
5500 7259.5 Roller, 1" ............................................................................................ 1
6500 7261.7 Roller, 1-1/4" lead .............................................................................. 1
7500 7262.5 Roller, 1-1/4" tail ................................................................................ 1
8500 0559.5 Roller unit, 2" ..................................................................................... 1
9503 8253.5 Roller, 2" tail ...................................................................................... 1
10 503 8252.7 Roller, 1-1/2" IMC .............................................................................. 1
11 500 7264.1 Support weldment, 1-1/4" .................................................................. 1
12 500 0528.6 Support weldment, 1-1/2" .................................................................. 1
13 500 0601.0 Support weldment, 2" ........................................................................ 1
14 500 0543.0 Plate, 1-1/2" outer roller .................................................................... 2
15 500 0604.5 Plate, 2" outer roller........................................................................... 1
16 503 8254.3 Rol, 1-1/2" ......................................................................................... 2
17 503 8264.0 Ball, 1-1/2" ......................................................................................... 2
18 503 8255.1 Rol, 2"................................................................................................ 2
19 503 8263.2 Ball, 2" ............................................................................................... 2
20 503 8262.4 Spacer, 2" roller................................................................................. 1
21 905 4248.7 Washer, Belleville 1.362 x .803 ......................................................... 2
22 905 1130.1 O-ring, 1.50 x 1.62 x .062 .................................................................. 2
23 905 1537.4 O-ring, 1.75 x 1.87 x .062 .................................................................. 2
24 500 7266.8 Shaft,1-1/4" support .......................................................................... 1
25 500 0860.9 Shaft, 1-1/2" support ......................................................................... 1
26 500 0493.0 Shaft, 2" rear roller ............................................................................ 1
27 503 8657.3 Shaft, 2" middle roller ........................................................................ 1
28 500 7265.0 Shaft, 1-1/2" pivot roller ..................................................................... 1
29 503 1728.8 Shaft, 2" pivot .................................................................................... 1
30 503 2027.0 Sleeve, 1-1/2" .................................................................................... 1
31 503 8151.2 Sleeve, 2" .......................................................................................... 1
32 503 8225.0 Arm, adjustment ................................................................................ 1
33 503 8251.9 Sleeve, adapter ................................................................................. 1
34 905 0540.9 Screw, 7/16-14 x 1.00 hex head ....................................................... 5
35 905 4819.1 Retaining ring, #5100-87 ................................................................... 2
36 905 0881.5 Screw, 1/4-28 x .25 set...................................................................... 2
37 905 4242.8 Screw, 1/4-20 x .38 button head ....................................................... 3
38 905 5282.2 Screw, 5/18 wing ............................................................................... 1
39 905 0283.3 Retaining ring, #5100-75 ................................................................... 1
40 905 5293.8 Shoulder bolt, 1/2" x 2.00 .................................................................. 1
41 905 0639.1 Nut, 3/8-16 hex .................................................................................. 1
42 905 3918.4 Washer, 1.00 x 1.37 x .030 shim ....................................................... 1
43 905 2644.9 Washer, 1/32 shim ............................................................................ 1
44 905 2645.7 Washer, 1/16 shim ............................................................................ 1
45 500 7464.4 Flip Stop ............................................................................................ 1
46 905 5303.9 Screw, 1/4-20 x .25 button head ....................................................... 2
47 503 8592.5 Guide, spring ..................................................................................... 1
48 905 4243.6 Spring, extension............................................................................... 1
49 503 8899.1 Decal, roller adjustment..................................................................... 1
50 500 7921.2 Decal, roller engagement .................................................................. 1
51 500 7936.0 Decal, 1" roller ................................................................................... 1
52 500 8190.0 Block, locator ..................................................................................... 1
53 905 4237.1 Screw, 3/8-16 x 1.00 hex .................................................................. 1

Greenlee / A Textron Company 18 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
Bending Shoe 1" to 2"
EMT, IMC and Rigid Conduit
Key Part No. Description Qty.
1500 7271.4 Bending shoe assembly
(includes items 2–10) .......................... 1
2500 7160.2 Hook, EMT ........................................... 1
3500 7162.9 Hook, IMC/RIGID................................. 1
4905 3396.8 Bolt ...................................................... 6
5502 3422.6 Stud, drive ........................................... 4
6500 7281.1 Pointer ................................................. 2
7500 7270.6 Screw, 1/4 - 20 x .38 ........................... 2
8500 7933.6 Decal, 1" - 2" EMT ............................... 1
9500 7934.4 Decal, 1" - 2" IMC/RIGID ..................... 1
10 500 8381.3 Decal, shoe weight .............................. 2
Exploded View/Parts List—500 7271.4 Shoe Assembly
3
10
NOTE: Second decal
on opposite hook in
same location
4
4
8
5
5
6
9
7
2

Greenlee / A Textron Company 19 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
102
109
110
111
114
113
112
103 104 105 107 108
116
117
106
Torque to
9 Newton-meters
(80 inch-pounds) 117
117
117
115
101
Exploded View/Parts List—115 Volt Motor
Pacific Scientific
Key Part No. Description Qty.
101* 918 6417.8 Motor, 115 volt (standard) (SRF-3745-4676-2-56C) ...... 1
102 918 6471.2 Fan cover ........................................................................1
103 905 5071.4 Retaining ring .................................................................. 1
104 918 6432.1 Fan .................................................................................. 1
105 918 6428.3 End bell nut ..................................................................... 2
106 918 6419.4 Bell, rear end................................................................... 1
107 918 6420.8 Brush ...............................................................................2
108 918 6422.4 Thrust washer ................................................................. 1
109* 918 6427.5 Shell and magnet assembly, 115V ................................. 1
110* 918 6425.9 Armature, 115V ............................................................... 1
111 918 6421.6 Bearing kit ....................................................................... 2
112 918 6418.6 Bell, front end .................................................................. 1
113 918 6424.0 Retaining ring .................................................................. 1
114 918 6426.7 Tie bolt, 115V .................................................................. 2
115 918 5876.3 90°Connector ................................................................. 1
116 918 6430.5 Brush cover ..................................................................... 2
117 918 6431.3 Cover screw .................................................................... 7
* Note: Alternate motor.
Check motor part number before ordering magnet shell or armature.
101 918 6973.0 Motor (SRF-3648-5532-7-56C)
109 918 6975.7 Shell and magnet assembly
110 918 6974.9 Armature

Greenlee / A Textron Company 20 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
853 Quad Bender™
BLACK
LINE
LOAD
BLACK
WHITE
GREEN
GREEN
WHITE
WHITE
BLACK
TO PENDANT
(142)
POWER CORD
(143)
TO MOTOR (25)
141
(fully assembled)
141C
(bracket only)
141B
141A
72, 65
41
Electrical Control System Layout