Leaking hydraulic leveling jack

[69087926]

When replacing one of the hydraulic leveling jacks, is the hydraulic fluid connected individually to each jack or are they connected to one reservoir? Does it need to be bled to prevent air from entering the system or just add fluid to reservoir? 

[Rickf1985]

It is supplied by a reservoir through the control valve to the individual jacks. You only need to fill the reservoir but you will need to operate the jack a few times so it can fill and bleed out the air as it sends fluid back to the reservoir.