HASAG Polar 5A

  • Hi.
    My first time using this forum so apologies if this has already been discussed.

    Whilst tidying my loft recently I 'found' a Hasag Polar 5A; I can't remember how and when I acquired it but I've probably had it for 30+ years.
    I am now in the process of bringing it back to life. I'm a 'Tilley' man so this is a new experience for me.
    I would be grateful for any advice from anyone who has experience of these lamps please.

    I would very much like to have a copy of the Operating Instructions and, if possible, a parts list please.
    Having filled and pressurised the tank, I have an air leak in the filler cap and need a replacement washer. Any suggestions as to where I might obtain one would be very welcome.

    John