siegen 180 so817 wiring

[mike 109444]

The code numbers and letters tell what type + rating + number of positions and more about the switch.
If it was just a power selection switch then it is much easier to replace but that one also has the power ON/OFF built in.
If the above test on the live and neutral were ok then after marking ALL connections it might be time to take switch apart. Be ready to catch any springs / detent ball bearings and broken bits. Maybe take apart on a washing up bowl to catch any parts. Before starting mark a line down the length of switch so as to align up the segments when reassembling.

 

[the snooper]

The code numbers and letters tell what type + rating + number of positions and more about the switch.
If it was just a power selection switch then it is much easier to replace but that one also has the power ON/OFF built in.
If the above test on the live and neutral were ok then after marking ALL connections it might be time to take switch apart. Be ready to catch any springs / detent ball bearings and broken bits. Maybe take apart on a washing up bowl to catch any parts. Before starting mark a line down the length of switch so as to align up the segments when reassembling.

and have a camera to take snap shots as you go

 

[stovenut]

Oh crap, referring back to Mikes warning about taking this switch apart.Are there lots of different sets of points cams springs etc within the switch ? Sounds like bit of a daunting exercise!

 

[the snooper]

as the switch will come apart in segments, use some sticky tape to tape each segment to the next so that when you remove the first the whole lot wont fly apart then remove next piece of tape for next segment and so on

 

[stovenut]

Had a look at switch and you say it comes apart in segments.What can I expect to find within these segments.Do you have any images of switches taken apart

 

[the snooper]

Had a look at switch and you say it comes apart in segments.What can I expect to find within these segments.Do you have any images of switches taken apart

i don't have any pics and ive looked on web for some, mike may have some, as mike said earlier springs, ball bearings that lock the switch in position as you turn it

 

[stovenut]

Okay , might have a go tomorrow Will get back to you with results

 

[mike 109444]

Have not listened but looks like info you may need.

 

[mike 109444]

Or this posh one (again not listened just skiped through)

 

[stovenut]

Thanks Mike, might give it a go tomorrow

 

[the snooper]

the first is more related to the welder switch, the second is a sales pitch type video

 

[stovenut]

Is it safe to remove all of the terminal screws for connections before separating switch segments?

 

[the snooper]

Is it safe to remove all of the terminal screws for connections before separating switch segments?

yes but label them and take photos so you know exactly what goes where

 

[stovenut]

Okay ,thanks and heres hoping

 

[mike 109444]

These pics might make the bit he could not show, make a bit more sense.

 

[stovenut]

Right took switch down and first thing that happened was a cam came off the shaft as I removed switch end cover so I have lost cam/points position on very first set.
Proceeded on until I came to segment 2 and bad burning/ arcing of points .On segment 3 the neutral connection from mains and moving points retainer are badly burned. Rest of segments were okay.So I cleaned any damage and dressed points.Reassembled . As stated above cam came off shaft so took a chance for position and wired it back into welder turned on and nothing.So is there any way to determine cam position?By the way your advice on strip down procedure was spot on . I am nearly sure if I could find the cam position it would go but thats the way it is

 

[the snooper]

the simple way to look at it is no matter what position apart from off the mains input should be in the closed position all the time, if you can work out what the sequence is for the rest of the segments you may have a chance which end came off spindle end or rear ?

 

[stovenut]

Came off spindle/control knob side.According to my diagrams this segment is for connection to large/bottom transformer (2 separate connections 1 above the other) and on other side it is strapped back to the third segment which is connection for fan and primary wire to 24 volt transformer(2 connections strapped together and strapped back to segment 3)As I was removing the first segment I didnt see the first cam as it was still caught up in the points.This was the only cam which I lost track of.(enough says you)

 

[the snooper]

so then turn the switch to the off position remove that segment set it to the off position and refit it should work making sure it is still on as its turned for the next 6 positions

 

[stovenut]

There are two sets of contacts and two cams(one for each set of points) in each segment.I have tried different positions with the rogue cam (positioned closest to control knob) but at some stage points will open during rotation