How to choose backstay oil? how to clean circuit?

[AleCiotti]

Hi, guys I have a Navtec a250 -22 backstay, it started leaking oil from the top, I suppose the seals have worn out over the years.

I will be rebuilding the cylinder and I also wanted to change the oil, but I can't find what type of oil I should use, do you guys know anything about choosing the correct one?

I also have a Navtec Vang connected to the same circuit of the Backstay, do you guys have any recommendations/resources on how to clean the circuit before refilling with new oil?

Thanks!

[GordMay]

Navtec recommends the following oils: Shell Tellus T15, Mobil DTE11M, Texaco Rando HD215,
Royal Purple Syndraulic 15.
Never use brake fluid, because it will attack the seals.
Navtec FAQs ➥ https://navtechydraulics.com/faqs/

Seal Kits ➥ https://navtechydraulics.com/navtec-...it-price-list/

[AleCiotti]

Thank you very much Gord for the reply, also do you know how I can clean the circuit and if I should, before replacing with new oil?

[GordMay]

I didn't see anything about "cleaning the circuit".

Navtec Owner’s Manuals ➥ https://navtechydraulics.com/owners-manual/

250 Standard Cylinder Breakdown ➥ https://navtechydraulics.com/cylinde...ual-breakdown/