"L7C bulk buy jack" servicing

[BertBert]

Sorry for posting this here, but as I'm not a member any more...

Anyone got experience with servicing the aforementioned jack?

Mine has given many years service until yesterday when it piddled all its oil on the ground. To be fair I had something a bit too heavy on it and I fully extended it!

I think I have some O-rings for the purpose, but anyone done this before?

Cheers
Bert

PS I'd rather talk about the jack than the merits of blatchat and membership! Cheers!!