Hi, my name's Ross, from Penrith / Sydney. I've recently acquired an old oil-immersed electric arc welding set from a family friend. Namely, an OXFORD Model RT 180 (Welding Current: 20 – 180 Amps). As a safety maintenance precaution I'm keen to replace the original Shell Diala Oil B (which, according to Vivaenergy or Shell, was apparently made obsolete over 7 years ago - the current suitable and/or compatible replacement being Shell Diala S4 ZX-1) before tinkering around with the unit. However, not having an Owner's Manual (and short of actually draining and measuring the oil) I'd greatly appreciate it if anybody could tell me the appropriate capacity of oil required to fill the tank. Note, I’ve also found out that the old Shell Diala Oil B maybe a PCB based transformer oil which is mildly carcinogenic and classed in the USA as toxic waste. Lovely….a sure case of safe handling, particularly if I remove the top plate’s securing bolts, drain the oil and clean the tank prior to re-filling it with the likes of Diala S4 ZX-1. Thereafter, I'm very much looking forward to resurrecting and productively using this apparently marvellous old machine. So, any idea of the related oil capacity ?
Cheers.


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