raymarine linear drive on auto helm weep

[windspeak]

Hi hope someone might be able to give me some advice regarding the linear drive on my quadrant as I am in the Canaries at the moment and the nearest Raymarine is back in Gibraltar there has been a slight weep of fluid out of the piston on the unit literally a drop my next port of call is Cape Verde then Barbados a long way to go and I am concerned whether this may be an indication of a failing seal sourcing a replacement may be difficult to impossible as there are no raymarine agencies on passage until Barbados I have cleaned around the suspect area and will get out to trial the problem tomorrow If anyone has experience with this unit I would be grateful for some information Raymarine type1 2s mechanical linear drive unit. M81131