Hi to all,
still trying to put my KL-1 together. Many things to do still, now I have shifted my attention to the power feed motor.
Power feeds never worked on this machine for several issues. After a lot of work I repaired the 'Variac' and tried again. Though the Variac seems to be working, I was getting a blown fuse still.
So, I dug in a bit further. My driving unit outputs around 190 V towards the Field connectors. I also measured the armature connectors and they gave out around 90 V with the Variac mid-travel!! This would give around 200 V when set to full speed.
However, my power feed motor is rated 110 V (A)/190 V (F). So, there is something obviously wrong here.
My machine has seen previous owner working on the power feed department: all I got for 'electrical diagrams' in the cabinet door was just internet prints of various power feed driving units. They has all versions there, including the US 90/100 unit....Plus, my power feed motor is painted blue, so I would assume it's not original.
So, I am guessing that, most probably, my machine came with a 230 V (A)/230 V (F) power feed motor that died at some point and was replaced by a 'hardinge power feed motor' that came off some other model and is my current 110/190 unit.
So, I would kindly ask any KL-1 users within the group to have a look at their feed motors and let me know what they are rated for.
Also, if someone could share a schematic (electrical diagram) for the KL-1, it would be very helpful to me.
BR,
Thanos
still trying to put my KL-1 together. Many things to do still, now I have shifted my attention to the power feed motor.
Power feeds never worked on this machine for several issues. After a lot of work I repaired the 'Variac' and tried again. Though the Variac seems to be working, I was getting a blown fuse still.
So, I dug in a bit further. My driving unit outputs around 190 V towards the Field connectors. I also measured the armature connectors and they gave out around 90 V with the Variac mid-travel!! This would give around 200 V when set to full speed.
However, my power feed motor is rated 110 V (A)/190 V (F). So, there is something obviously wrong here.
My machine has seen previous owner working on the power feed department: all I got for 'electrical diagrams' in the cabinet door was just internet prints of various power feed driving units. They has all versions there, including the US 90/100 unit....Plus, my power feed motor is painted blue, so I would assume it's not original.
So, I am guessing that, most probably, my machine came with a 230 V (A)/230 V (F) power feed motor that died at some point and was replaced by a 'hardinge power feed motor' that came off some other model and is my current 110/190 unit.
So, I would kindly ask any KL-1 users within the group to have a look at their feed motors and let me know what they are rated for.
Also, if someone could share a schematic (electrical diagram) for the KL-1, it would be very helpful to me.
BR,
Thanos