Hydraulic back stay ram

[MattK1969]

Hi, had this serviced 3 years ago. It's leaking out of the guage joint. Anyone know what type of oil? I can buy hydraulic steering oil. I have automatic transmission fluid. I need to mend the seal and refill, or if I can't do jerry rig some bottle screws or something!!

If I get the right oil, do you know where to refill it?

 

[MattK1969]

All done, learned some new skills, including how to reanneal the copper washers!