2 Post Lift : Hydrolic Cylinders Dropping Pressure

[mpcv2000]

Hello.

I have a Chinese 2 Post lift ( my 3rd one in 3 different locations ) , never had a issue but this one when I park it on the safety stoppers the cylinders drop pressure to finally sit all the way down.

I haven't made a test or bought new parts but I'm guessing it might be the Valve that is leaking / damage , etc. ?

Anyone had a similar issue with those Chinese lift.

Thanks.

 

[mpcv2000]

 

[mpcv2000]

There is threads there , is there a adjustment ?

 

[mpcv2000]

I have a 2 Post lift and a Parking lift using the exact same pump , I swapped one at the time the valve and found the valve that has the issue , this is the one where the release handle is.
Not my Parking lift has the issue...lol
I haven't thought about swapping the parts until this morning when I realized both pumps were exactly the same bought from different retailer here in Montreal.
This might help other Newbie with the same issue.

 

[garfunkle24]

If you have plugs/caps that fit (they are often shipped with plugs/caps) set it on the stops, caps the lines and see if they drop. If no, it's the valve. Unlikely that both cylinders are bypassing internally so likely a valve.