water in oil

dont want to bore u with details minimum value of insulation is 1.0 meg. test voltage 500 dc

ryt well first things first the welder was only checked for oil once since in was bought in 1973, so it should be due a change anyways, im sure there is sludge in there. on the other hand is 195euro not a bit pricey for 25litres of trans oil???

Originally Posted by oilcooled :) ryt well first things first the welder was only checked for oil once since in was bought in 1973, so it should be due a change anyways, im sure there is sludge in there. on the other hand is 195euro not a bit pricey for 25litres of trans oil???

cant u just see the electicity guys an a substation they change the oil when it gets carbon in it mind u thats working at over 10k but would be ok at 240

Hello Oilcooled,

can you switch the welder on and not use it to weld, just have it on?

If that doesn't trip the breaker there is nothing wrong with the oil, cable or connections. If it only trips after you start welding there is a fault within the welder.

If that is the case I would not think that it would weld very well?

Alec

I have heard of a few 1970 s Oxford coils burning out due to condensation in the cooling oil so I would suspect this with your welder. I would dismantle the welding set, check the oil for water/gunge etc, check the coils with avo or whatever it takes and if they are ok refill with new oil and reassemble. I don't know about the cost of the oil but I recon this is the only way to proceed.
Might be an idea if alls well with the coils to fit a tapping on the bottom of the welder box so future water can be drained off.
Good luck with it, Brian (",).

Originally Posted by oilcooled :) ryt well first things first the welder was only checked for oil once since in was bought in 1973, so it should be due a change anyways, im sure there is sludge in there. on the other hand is 195euro not a bit pricey for 25litres of trans oil???

Sounds extortionate £68.50 +vat /25ltr from Morris Lubricants over here