Every floor jack will have the required level of the hydraulic fluid indicated.
Floor jack oil level.
I could see that the reservoir in my jack was nearly empty which explains its inability to lift a vehicle.
Continue pressing until the jack is down to its lowest position.
Return the fluid release valve to its original position by turning it a half turn in a clockwise direction.
The hydraulic jack oil should be visible 3 16 inch above the inner cylinder wall.
You should make sure that your oil is poured to this level.
After the rubber plug is removed you ll be able to see the hydraulic oil level.
Look for any oil seepage around this valve.
Only start pouring the oil when the funnel is in place.
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.
Place your foot on the jack.
Filling jack oil reservoir.
Use the jack handle to turn the valve a half turn in a counterclockwise direction.
The funnel should prevent any unnecessary spills when refilling the oil.
Slowly pour in oil.
Step 4 place the small end of a clean plastic funnel into the oil filler opening hole.
If the problem is not solved after these steps then the pressure valve needed to be repaired.
If the oil is below this level high quality jack oil must be added.
Put the jack in the down position by opening the release valve the valve that when opened allows oil to flow back into the main oil reservoir located at the bottom of the jack thus lowering the ram piston.
Place the floor jack on a hard level surface.
Press the jack downward.