Bending table for use with model 254 hydraulic conduit bender (28 pages)
Summary of Contents for Current Tools 270
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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.
TABLE OF CONTENTS Safety Alerts ..................3 Important Safety Information .............4,5 Specifications ...................6 Major Components – Bender ............6 Major Components – Parts List ............6 Major Components – Shoe Groups ..........7 Conduit Centerline Bending Radii ..........7 Assembly & Operating Instructions ........8-13 90˚...
SAFETY ALERTS Safety Alert Symbol 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.
RETAIN SAFETY INFORMATION This manual should be read and understood by all personnel who assemble, operate or service this hydraulic bender. Failure to understand how to safely assemble, operate and service this unit could result in injury or death. This unit should only be assembled, operated and serviced by qualified personnel.
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DANGER IMPORTANT SAFETY INFORMATION continued — DANGER DANGER WARNING ALWAYS read and understand the safety and operating instructions supplied with your hydraulic pump DANGER WARNING ALWAYS keep children away. All visitors should remain a safe WARNING CAUTION distance from work area. DANGER WARNING CAUTION...
ASSEMBLY & OPERATING INSTRUCTIONS – 270 CONDUIT BENDER FOR OPERATING ON THE FLOOR BENDER ASSEMBLY 1. Locate the frame assembly and place it on the floor with the decals facing up. 2. Place the hydraulic cylinder with the cylinder mounting block between the frame sides.
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104) and secure the pin with spring clip (Part #270-007). Attach the shoe to the shoe adapter with the small shoe pin (Part #270-106). — For bending 2 1/2" and larger conduit, pin the large shoe adapter (Part #270- 118) to the hydraulic cylinder using the two large shoe adapter pins (Part #270-105) and secure the pins with spring clips (Part #254-006).
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— CONTINUED 4. Place the conduit supports (Part #270-117) in between the frame pieces and line up the mounting holes with the correct hole position on the frame for the size conduit you will be bending. Insert the conduit support pins (Part #270-122) through the frame sides and conduit supports.
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ASSEMBLY & OPERATING INSTRUCTIONS – 270 CONDUIT BENDER — CONTINUED 6. Connect the hydraulic hose (Part #291) to the pump and hydraulic cylinder. Rotate the pump valve lever to the open position to ensure the cylinder is fully retracted. NOTE: Make sure all fittings are clean, free of debris and completely tightened prior to bending.
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ASSEMBLY & OPERATING INSTRUCTIONS – 270 CONDUIT BENDER — CONTINUED BENDING CONDUIT 1. Refer to the “bending information and charts” section of this manual to determine bending mark locations for the bend you will making. Mark the conduit accordingly. 2. Insert the conduit into the bender frame between the conduit supports and bending shoe.
ASSEMBLY & OPERATING INSTRUCTIONS – 270 CONDUIT BENDER — CONTINUED 4. Determine the amount of cylinder travel for the size, type and degree of bend by referring to the cylinder travel and bender calibration information on page 13. 5. Activate the hydraulic pump to begin the bend.
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ASSEMBLY & OPERATING INSTRUCTIONS – 270 CONDUIT BENDER — CONTINUED BENDING CONDUIT 7. Repeat steps 5 and 6 until the bend is complete. 8. Rotate the pump valve lever to the open position to retract the cylinder. Remove the conduit from the bender.
CYLINDER TRAVEL AND BENDER CALIBRATION NOTE: Read the gauge rod at the edge of the cylinder mounting block. Gauge rod should read zero (Ø) when cylinder is fully retracted. TO ADJUST GAUGE ROD, loosen the gauge rod adjusting nuts and adjust rod so that zero (Ø) is flush with the top of the cylinder block.
BENDING INFORMATION AND CHARTS NOTE: Current Tools Model #270 bender is designed to make up to 90˚ bends with one extension of the hydraulic cylinder. The Greenlee™ Model #884/885 hydraulic bender major components will fit the Current Tools Model #270 hydraulic bender.
OFFSET BENDING INFORMATION AND CHARTS To locate bending marks for an offset bend. NOTE: Offset bends are used to route conduit around an obstacle. Two bends are necessary to make an offset. The height and angle of the offset must be determined prior to making the bend, and the distance between the two bends is the center to center distance.
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OFFSET BENDING INFORMATION AND CHARTS — CONTINUED CONDUIT “SHRINK” When making offsets as close as possible to the obstacle, it is necessary to figure in “shrinkage” when approaching the obstacle. Page 21 & 22 illustrates how to figure shrinkage in those circumstances. To compensate for shrinkage when approaching an obstacle, both bends need to be adjusted forward.
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OFFSET BENDING INFORMATION AND CHARTS — CONTINUED CENTER-TO-CENTER CALCULATIONS WITH SHRINKAGE Use the table below to determine the center-to-center distance and shrinkage per inch of offset for a particular offset bend. SHRINK PER INCH OF OFFSET ANGLE MULTIPLIER OFFSET HEIGHT 10 DEG.
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