| Message | I operate regularly on layouts that use picks on Kadee couplers. One problem with Kadees and picks is that if one must reach a good distance to uncouple, it is very difficult to insert the pick well to actually uncouple. Judging the distance can be difficult. Sometimes I must place the pick on the side of the coupler, then lift in and move the pick to the center of the coupler, move it down into the knuckles and rotate it. With Sergents, all that is needed is to place the end of the stick on top of one coupler and pull away with the loco. Much easier & quicker with Sergents. Another issue with the Kadees is false uncoupling over a permanent magnet uncoupler--can't happen with Sergents. The electromagnet uncouplers often are not quite strong enough to pull the two Kadee knuckles apart. Not a problem with Sergents, just get the magnet near the top of one coupler & it works. Reaching in over benchwork is easier with the Sergent uncoupler--it can be held horisontally, whereas a pick for Kadees must be held vertically. Now for theory: I will make a Sergent uncoupler with a magnet on the end of a long wood skewer with the knuckle wire 90 deg to the skewer so that it may be used to open the knuckle and/or center the coupler when reaching from the side. |