uppo72, I was so new I didn't even know to question why AC vs DC. When I was taught that way by the wizard from the motor shop and a 30yr adjuster and have just done it like that for years.... As far as the jack bolts Otis used a isolated 2 piece platform with isolation pads between the two sections. The load weighing switches are set as the isolation pads compress with a load. And the jack bolts are located on all 4 corners so you can run them up and keep the isolation pads and switches from getting creamed when you do a full load full speed safety set. And if you do not run the jack bolts in you will have to reset all the load weighing switches or as we find on a lot of jobs we take over. Have poor leveling performance with the need to bring in weights to set things backup. I have been trying to find a newer style load weigher to replace the old micro switched but i am having problems finding any with the 6 or 7 outputs needed to replicate the Otis design. Including anti nuisance and hall call bypass.
Dan thanks for the reply. In Aus we have 230/240 vac on the wall, so not sure id want to do that but can get info from the motors winders if need be. As to the jacking bolts, that is a name used for a variety of spots so thanks for clarifying it. It is a good point about the adjustments as I have worked on a lot of 260vip where the selectors are all worn out, and then the compo settings are out too. I didn't realise we could jack those up, but it should be remembered that it is only a recent rule change that we had to do full load safety gear tests, as we only did hand control tests, which is where the damage was avoided. Not sure of a new product to replace this either.
