By Jack Benfield
The enterprise of bending conduit isn't really so advanced because it appears to be like at the start making bends that healthy correct the 1st time is straightforward if one follows a number of uncomplicated ideas. because the writer promised, now not a unmarried technical observe has seemed during this handbook -no excessive math... no “trig”...no sines...no co-sines...no algebra or geometry was once had to research the straightforward artwork of creating conduit bends that healthy!
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Extra info for Benfield Conduit Bending Manual
Drive the rod into place with a sledge. A Then re-chase the threaded end if it was damaged from the hammer blows. Jack's "Timely Tips" HANDLES: If you make up your own handles use schedule 40 merchant pipe and cut tapered threads (like on steel water pipe). The threaded end should jam down tight BEFORE it bottoms out in the threaded bender socket. A loose fitting handle is unsafe because it can turn in the middle of a bend. The length of your bender handle is important. not solely as a power lever.
Making Stub-ups Table F Chapter 1 shows how stub-ups are made using a bender. Exactly the same techniques can be employed while using a hickey, except Table F must be used for the take-up. Bending with Hickeys Variable Radius Bends 31 Questions & Answers Q Can hickeys be used to shift conduit stubs on concrete slab work in the case of a missed partition? Usually it is best to remove the handle, placing the hickey head only on the conduit. The hickey handle A Yes. is then sleeved over the conduit close to the hickey head and used as a lever to bend the “wandering stub” back into proper position.
Thus multiple bends are kept in the same plane. Or bend the second half of the offset just slightly (8° to 10° or less). Then sight down the pipe. If bends are out of line it will be apparent. the “dog leg” will disappear. d. Bending with tool in air: Apply hand pressure as close to the groove as possible, even if it is uncomfortable. Keep pressure close! Tucking conduit under the arm pit helps. To keep body balance allow the tool to rock forward as the bending progresses. e. avoid soft sand, deep carpets, etc.
Benfield Conduit Bending Manual by Jack Benfield