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Cinncinnatai Cinova 80 307-14 Vertical Mill 230V / 120V Transformer

Kerrfab

Plastic
Joined
Oct 17, 2020
Location
SE IOWA
Troubleshooting a Cinova 80 307-14 vertical (S/N 31423V5V-0006) and believe I have a bad 230V to 120V transformer... unfortunately all the information has been wiped off the face plate, does anyone know what size of transformer I need to replace it with?

Have the service manual, but it doesn't have any electrical information.... Along those lines anyone know where I can find an electrical one line for this mill?

Thanks in advance!
 
Figured it out after using flashlight / magnifying glass, reading brail and just some guessing. The transformer is a 0.25 KVA transformer, which is way more that what would be required. It looks like the 120 volt control circuit is fused with a 0.2 amp fuse, so doing the math volts* amps = 120V * 0.20A = 25VA. Safety factor of 100 (seems high, but I'm not an electrician)

However the transformer was not bad after all... The seller told me it was wired up 230 3ph / turned out it was wired up for 460V, so the transformer was only putting out 1/2 the required voltage.

On to next the problem... vertical head.. No oil flow in sightglass!
 








 
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