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Current Tools

 77 Series Electric Bender – 220 Volt

with Single Shoe Groups

for bending 1/2" thru 2" RIGID - EMT - IMC 

and 40 mil PVC coated RIGID Conduit

CURRENT TOOLS • P. O. BOX 17026 GREENVILLE, SC  29606

800.230.5421 or 864.721.4230 • FAX 864.721.4232

www.currenttools.com

Operating, Maintenance, Safety

and Parts Manual

06/17

This manual is free of charge. All personnel who operate this 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.

Read and understand this material before 

operating or servicing this Bender. Failure to 

understand how to safely operate and service 

this unit may result in serious injury or death.

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Содержание RotaBoom 700SI

Страница 1: ...enttools com Operating Maintenance Safety and Parts Manual 06 17 This manual is free of charge All personnel who operate this 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 Read and understand this material before operating or servicing this Bender Failure to understand how to safely operate and service this unit m...

Страница 2: ...ng Shoes 10 Mounting Roller Supports 11 General Bending Instructions 12 13 Bending Instructions for 1 1 2 and 2 EMT IMC Conduit 14 16 Squeeze Adjustment Procedure for 1 1 2 and 2 EMT IMC Roller Supports 17 Maintenance 18 19 Stub Up Bending Information and Charts 20 21 Offset Bending Information and Charts 22 23 Troubleshooting 24 Exploded Views 25 26 Parts List 27 28 Electrical System Diagram 29 P...

Страница 3: ...mmediate hazards which if not avoided WILL result in serious personal injury or death DANGER 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 safety instructions may result in injury or death Safety Alert...

Страница 4: ...not in use ALWAYS inspect the bender before operating Replace any damaged missing or worn parts NEVER alter this equipment Doing so will void the warranty NEVER remove guards they are installed for your protection ALWAYS check for damaged or worn parts Check for alignment of moving parts binding of moving parts breakage of parts mounting and any other conditions that may affect its operation A gua...

Страница 5: ...ur if the bender is tipped or if the bending shoe is unintentionally contacted ALWAYS wear approved safety glasses when the bender is in operation ALWAYS wear proper apparel Do not wear loose clothing gloves neckties rings bracelets or other jewelry which may get caught in moving parts Non slip footwear is recommended Wear protective hair covering to contain long hair ALWAYS keep children away All...

Страница 6: ...d roller support for 1 2 thru 2 RIGID conduit and schedule 40 pipe and 1 2 thru 1 1 4 IMC conduit 77SE 22 Electric Bender with shoe and roller support for 1 2 thru 2 EMT conduit Shoe Group ONLY for use with 77 22 Power Unit 700SI 1 2 thru 2 IMC single shoe group for 77 22 power unit 700SP 1 2 thru 2 40 MIL PVC Coated RIGID single shoe group for 77 22 power unit FEATURES 1 Bending Degree Scale easy...

Страница 7: ...ectric Benders may also be used in a horizontal position The bender can operate in this position as efficiently as it does in the upright position See Figure 7b below 7 Figure 7b When replacing handle be sure to replace screws and nuts and also to tighten securely before moving or transporting WARNING REMOVE BOTH SCREWS AND NUTS ON EACH SIDE TO REMOVE HANDLE Figure 7a ...

Страница 8: ...box not shown 1 2 EMT 700SE for bending 1 2 thru 2 EMT Thinwall includes the following items Key Catalog Description 1 2 3100 1 2 thru 2 bending shoe 2 2 4200 1 2 thru 2 roller support 3 8 0501 storage box not shown 1 2 CONDUIT CENTERLINE BENDING RADII size 1 2 3 4 1 1 1 4 1 1 2 2 EMT 4 5 16 5 1 2 7 8 13 16 8 3 8 9 1 4 IMC 4 1 4 5 7 16 6 15 16 8 3 4 8 1 4 9 RIGID 4 1 4 5 7 16 6 15 16 8 3 4 8 1 4 9...

Страница 9: ...pment grounding conductor If repair or replacement of the electric cord or plug is necessary do not connect the equipment grounding conductor to a live terminal Check with a qualified electrician or service personnel if the grounding instructions are not completely understood or if in doubt as to whether the bender is properly grounded Use only 3 wire extension cords that have 3 prong grounding pl...

Страница 10: ...elow Note Rigid and IMC conduit are bent on the same shoe However the roller supports are specific for Rigid or IMC Next align the four drive studs on the back of the shoe with the four drive holes in the main drive sprocket Push the shoe onto the main drive sprocket shaft See Figure 10b MAIN DRIVE SPROCKET DRIVE HOLES SPROCKET SHAFT DRIVE STUDS BENDING SHOE MAIN DRIVE SPROCKET ...

Страница 11: ...port on the bender Secure the roller support with the quick release hinge pin See Figures 11a and 11b MOUNTING INSTRUCTIONS FOR GREENLEE SHOES AND ATTACHMENTS Most bending shoes and attachments for the Greenlee 555 and 555 Classic will fit the Model 77 22 Bender In addition most bending shoes and attachments for the Model 77 22 Bender will fit the Greenlee 555 and 555 Classic bender Contact Curren...

Страница 12: ...duit to the desired length Note that a 2 minimum distance from the end of the conduit to the bending mark is required to eliminate flattening the end of the pipe conduit See Figure 12 NOTE Stub up and Offset dimensions can be found on the bending charts on pages 20 thru 23 of this manual or on the bending instruction decal on top of each bender 2 Rotate the bending shoe to 10 degrees below the 0 z...

Страница 13: ... on the shoe reaches the desired degree of bend release the Jog button and the bender will stop NOTE Due to springback in pipe conduit some over bending is necessary to achieve the desired degree of bend See page 21 or the bending instruction decal on top of each bender for approximate springback compensation figures 5 To release the pipe conduit place the Bend Unload switch in the Unload position...

Страница 14: ...see Figure 14b 2 Mark pipe conduit to the desired length Note that a 2 minimum distance from the end of the conduit to the bending mark is required to eliminate flattening the end of the pipe conduit See Figure 14c NOTE Stub up and Offset dimensions can be found on the bending charts on pages 20 thru 23 of this manual or on the bending instruction decal located on the top of each bender 2 MINIMUM ...

Страница 15: ... See Figure 14c NOTE The appropriate size and type of roller support MUST be used with the corresponding shoe size and type 5 Step on the Engaging Pedal which will raise the rollers to come in contact with the conduit See Figure 15 Be sure the correct rollers for the size conduit being bent are in position to engage the conduit NOTE See SQUEEZE ADJUSTMENT PROCEDURE on page 17 Figure 15 STOP ROLLER...

Страница 16: ...elease the Jog button and the bender will stop NOTE Due to springback in pipe conduit some over bending is necessary to achieve the desired degree of bend See page 21 or the bending instructions decal located on the top of each bender for approximate springback compensation figures NOTE DO NOT allow the rollers to come in contact with the bending shoe The shoe and rollers squeeze the conduit but t...

Страница 17: ...e loosen both set screws and turn both adjusting bolts one half turn clockwise Bend one piece of conduit to test the adjustment and if wrinkling still occurs repeat the procedure Once you have achieved a good bend tighten both set screws NOTE Both adjusting bolts MUST be in contact with the bender leg See Figure 17a 2 If side marking occurs pressure against the conduit during the bending process m...

Страница 18: ...ear Oil Chevron Cylinder Oil 460X Exxon CYLESSTIC TK460 Mobil 600 W Cylinder Oil Shell Sun Gear Oil 7C 2 To inspect FRONT 60 chain tension Remove front cover plate To adjust loosen hex bolt with 3 4 wrench and rotate chain tensioner toward chain as shown until chain moves no more than a total of 1 4 See Figure 18 below Grease chain periodically with a good quality MP grease Figure 18 ALWAYS discon...

Страница 19: ...ar box in position To tighten chain move the gear box to the left and re tighten bolts For correct tension chain should deflect approximately 1 8 NOTE Be sure to keep the gear box and motor in line with the bender Grease chain periodically with a good quality MP grease Figure 19 4 BOLTS ONTOP 4 BOLTS ON BOTTOM CHAIN GUARD MOUNTING SCREWS THIS COVER ALLOWS ACCESSTOTHE GEARBOX SPROCKET IF ADJUSTMENT...

Страница 20: ...B C or C1 on Page 21 for deduct length Note that minimum stub length is deduct length plus 2 2 Measure and mark desired stub length on conduit stub length mark Subtract Deduct Length from this mark and make a second mark bending mark See Fig 20a and 20b Place bending mark at front edge of shoe hook See Figure 20c Check Chart A B C or C1 on Page 21 for springback of desired degree of bend Bender sh...

Страница 21: ...3 4 9 17 33 48 64 95 1 11 17 32 48 63 94 1 1 4 13 5 8 17 32 48 63 94 1 1 2 14 7 8 19 35 50 66 97 2 16 3 8 19 34 50 65 96 Chart C IMC Conduit Conduit Size Deduct Length Springback 15 30 45 60 90 1 2 7 1 2 20 36 51 67 98 3 4 9 19 35 50 66 97 1 11 19 35 50 66 97 1 1 4 13 5 8 19 35 50 66 97 1 1 2 14 7 8 17 33 49 64 96 2 16 1 8 19 34 50 65 96 Chart C1 PVC Coated Rigid Conduit Conduit Size Deduct Length...

Страница 22: ...1 See Figure 22a and 22b 2 Refer to chart E for measurement X see page 23 and deduct this distance from Mark 1 and place Mark 2 on conduit See Figure 22b 3 Refer to chart D see page 23 for center to center distance between marks Measure this distance from Mark 2 and place Mark 3 on conduit 4 Layout of bends is now complete Next place Mark 2 in line with front edge of shoe hook and make first bend ...

Страница 23: ...D use the following multipliers Multiply the height of offset desired by 3 86 on 15 degree bends 2 on 30 degree bends and 1 4 on 45 degree bends Chart E Figures are approximate Conduit Size 1 2 3 4 1 1 1 4 1 1 2 2 x 3 1 16 3 1 16 3 3 16 4 4 1 4 4 1 2 OFFSET BENDING INFORMATION AND CHARTS continued ...

Страница 24: ...brushes and ohm Replace for open or short armature 4 Motor runs but Chain from gear box Remove cover and Replace will not bend to jack shaft broken visually check for broken parts Bad gear box Motor running but no Replace output through gear box Chain from jack shaft Remove cover and Replace to shoe sprocket broken visually check for broken parts Key between motor and Remove motor from Replace key...

Страница 25: ... 180 3 1 3 0 110 100 90 12 0 5 0 6 0 70 80 160 1 4 0 150 16 46 19 19 67 75 32 26 17 39 GEARBOX MOUNT REF 4 3 8 16 HEX SCREWS INCLUDED WITH GEARBOX 2 24 68 29 25 15 27 SEE SEPARATE BREAKDOWN 34 41 42 SUPPLIED WITH GEARBOX 40 35 37 40 71 76 38 47 28 75 73 25 EXPLODED VIEWS refer to PARTS LIST on page 27 ...

Страница 26: ...TCH CIRCUIT 62 44 7 ELECTRICAL PLATE 22 53 55 56 66 57 61 63 MOUNTING HOLES BENDER FRAME 54 AC AC 27 54 60 58 76 7 80 59 72 74 4 PENDANT REMOTE 53 28 48 77 78 49 50 51 64 65 52 36 53 80 81 79 EXPLODED VIEWS continued ...

Страница 27: ...1 4 17 77 017 2 WASHER 3 4 USS 18 77 429 1 AXLE 19 77 033A 9 SCREW HEX 10 X 1 2 2 TEKS 20 77 413 1 CHAIN TENSIONER 21 77 013A 1 SLEEVE PHENOLIC SHORT 22 453 16A 2 NUT HEX 8 32 23 8092 2 1 SCREW HEX 1 2 13 X 1 24 2 1301 4 4 NUT HEX 5 16 18 NYLON INS 25 77 002D1 4 SCREW HEX 5 16 18 X 3 4 26 77 026 1 COVER ELECTRICAL 27 77 339 1 PLATE ELECTRICAL 28 77 028A 2 STRAIN RELIEF PENDANT 29 77 028 1 STRAIN R...

Страница 28: ...ISTOR 59 77 059 220V 1 VARISTOR WITH WIRES 60 77 060 1 BRIDGE RECTIFIER 61 77 061 2 SCREW RD HEAD MACH 6 32 X 3 8 62 77 062 220V 1 CIRCUIT BREAKER 63 77 063 1 COVER CIRCUIT BREAKER 64 77 064 1 DECAL PENDANT 65 77 065 1 FISH PAPER INSULATING 66 77 066 1 FUSE HOLDER 67 77 067 1 RETAINING RING 68 450 20 4 SPACER 69 77 068 220V 1 CORD POWER not shown 70 77 048A 1 CORD PENDANT not shown 71 77 714 1 ACC...

Страница 29: ...ELECTRICAL SYSTEM DIAGRAM 29 ...

Страница 30: ... IMC 7 99 8 2 SCREW SKT HD CAP 1 4 20 1 2 8 99 59 4 SCREW SKT HD CAP 3 8 16 1 1 4 9 450 14G 2 WASHER LOCK 1 4 10 2 4000 1 ROLLER SUPPORT 1 2 TO 2 RIGID AND 1 2 TO 1 1 4 IMC 11 2 4000 107A 1 ROLLER SUPPORT ASSEMBLY 1 2 TO 1 1 4 12 2 4000 122 1 HINGE PIN 13 2 4000 123 1 RETAINING RING 7 16 14 2 4000 125 1 ROLLER SUPPORT ASSEMBLY 1 1 2 TO 2 15 2 4000 001 4 COLLAR 3 4 I D 1 1 2 2 ROLLER 16 2 4000 106A...

Страница 31: ...99 8 2 SCREW SKT HD SKT 1 4 20 1 2 8 99 59 4 SCREW SKT HD CAP 3 8 16 1 1 4 9 450 14G 2 WASHER LOCK 1 4 10 2 4300 1 ROLLER SUPPORT 1 2 TO 2 PVC COATED RIGID 11 2 4000 107B 1 ROLLER SUPPORT ASSEMBLY 1 2 TO 1 1 4 12 2 4000 122 1 HINGE PIN 13 2 4000 123 1 RETAINING RING 7 16 14 2 4300 103 1 ROLLER SUPPORT ASSEMBLY 1 1 2 TO 2 15 2 4000 001 4 COLLAR 3 4 I D 1 1 2 2 ROLLER 16 2 4000 106B 1 WELDMENT 1 1 2...

Страница 32: ...DRIVE STUD 2 2 2301 2 3 SCREW SHOULDER SOCKET 3 4 1 1 2 3 2 2303 1 HOOK 1 1 2 2 EMT 4 2 3000 102 2 POINTER DEGREE INDICATOR 5 2 3100 101 1 SHOE 1 2 2 EMT 6 2 3102 1 HOOK 1 2 1 1 4 EMT 7 99 8 2 SCREW SKT HD CAP 1 4 20 1 2 8 99 59 4 SCREW SKT HD CAP 3 8 16 1 1 4 9 450 14G 2 WASHER LOCK 1 4 5 7 4 2 2 2 3 6 1 1 1 7 4 1 8 9 9 ...

Страница 33: ...2 4000 107D 1 1 2 1 25 EMT ROLLER SUPPORT 9 2 4000 122 1 HINGE PIN UPPER 10 2 4000 123 1 7 16 RETAINER RING 11 2 4100 107D 1 EMT ROLLER SUPPORT FRAME 12 2 4100 118 1 AXLE ROLLER BRACKET 13 2 4100 119 2 BRACKET 2 ROLLER 14 2 4100 121 1 SPRING CLIP 2 00 ROLLER 15 2 4100 122 1 SPRING CLIP 1 50 ROLLER 16 2 4100 123 2 3 4 DIA PIN 1 50 2 00 ROLLER 17 2 4100 124 2 SPRING 18 2 4200 1 1 DECAL NOT SHOWN 19 ...

Страница 34: ... 2 2 2301 2 3 SCREW SHOULDER SOCKET 3 4 1 1 2 3 2 2302 1 HOOK 1 1 2 2 RIGID IMC 4 2 3000 101 1 SHOE 1 2 2 RIGID IMC 5 2 3000 102 2 POINTER DEGREE INDICATOR 6 2 3002 1 HOOK 1 2 1 1 4 RIGID IMC 7 99 8 2 SCREW SKT HD CAP 1 4 20 1 2 8 99 59 4 SCREW SKT HD CAP 3 8 16 1 1 4 9 450 14G 2 WASHER LOCK 1 4 2 3 2 2 7 5 4 6 1 1 8 1 1 7 5 8 9 9 ...

Страница 35: ...R 10 2 4000 123 1 7 16 RETAINER RING 11 2 4100 1 1 DECAL NOT SHOWN 12 2 4100 107C 1 IMC ROLLER SUPPORT FRAME 13 2 4100 118 1 AXLE ROLLER BRACKET 14 2 4100 119 2 BRACKET 2 00 ROLLER 15 2 4100 120 2 BRACKET 1 50 IMC ROLLER 16 2 4100 121 1 SPRING CLIP 2 00 ROLLER 17 2 4100 122 1 SPRING CLIP 1 50 ROLLER 18 2 4100 123 2 75 PIN FOR 2 ROLLER 19 2 4100 124 2 SPRING 20 747 858 2 ROLLER PIN 1 50 21 747 859 ...

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