If the problem is not solved after these steps then the pressure valve needed to be repaired.
Floor jack oil level.
Hydraulic jack oil 8.
Place the floor jack on a hard level surface.
I could see that the reservoir in my jack was nearly empty which explains its inability to lift a vehicle.
The funnel should prevent any unnecessary spills when refilling the oil.
Continue pressing until the jack is down to its lowest position.
Use a small funnel or a large syringe to slowly add oil to the.
To fix a floor jack that leaks down firstly check the reservoir from the level of oil in it.
Lift the arm and release it slowly it will lead to pushing the air out.
Filling jack oil reservoir.
After the rubber plug is removed you ll be able to see the hydraulic oil level.
The hydraulic jack oil should be visible 3 16 inch above the inner cylinder wall.
Use the jack handle to turn the valve a half turn in a counterclockwise direction.
Place your foot on the jack.
Slowly pour in oil.
Sometimes more oil could be the reason for leak down.
Every floor jack will have the required level of the hydraulic fluid indicated.
Press the jack downward.
If the oil is below this level high quality jack oil must be added.
You should make sure that your oil is poured to this level.
Only start pouring the oil when the funnel is in place.
Look for any oil seepage around this valve.