#11 Radius Bender – Proximity Switch Assembly Instruction
For Use at assembly for field retrofit Revised October 2, 2001
1. Pre-assemble the proximity switch to the mounting bracket. Be careful to locate it in the center of
the elongated slot.
2. Turn the machine on and using the manual control, move the bend roll out to allow for the easy
insertion of an approximate 3 foot length of 1 ½” diameter steel rod.
3. Note: It may be necessary to slightly readjust the forward over-travel micro-switch located on the
right forward side.
4. Place the 1 ½” diameter bar between the two drive rolls and the bend roll. This should be fairly
loose and easy to accomplish. Be sure all areas are clean and free of rust or scale build-up.
5. Carefully, using the manual control, adjust the bend roll in so that it barely touches the 1 ½” bar.
You should be able to turn the bar but not pull it in or out. (Turning the bar at this point proves that
the bar is straight – this is very important.)
6. Locate the pre-assembled bracket and proximity switch along the left side slide guide so that the
center of the switch top is centered on the small ¼” thick tab. Note: It may be necessary to adjust
the switch in or out slightly on the bracket to avoid contacting the tab. The bracket must be
positioned both vertically and horizontally along the slide guide.
7. Clamp the bracket in place.
8. Remove the Proximity switch to avoid damage during the welding.
9. Weld the bracket to the slide guide.
10. Remove the 1 ½” bar.
11. Touch up paint as required.
12. Reassembly the Proximity switch to the bracket.
13. Readjust the right side over-travel micro-switch if necessary.
14. Connect Proximity switch leads.
15. Adjust the location of the proximity switch in the elongated slot. Set it all the way out and slowly
move it in until the yellow led comes on. Tighten the adjusting screw. Don’t move the bend roller at all
from its setting in Step #5.
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