Place the floor jack on a hard level surface.
Floor jack oil level.
Lift the arm and release it slowly it will lead to pushing the air out.
Filling jack oil reservoir.
Slowly pour in oil.
Use a small funnel or a large syringe to slowly add oil to the.
Only start pouring the oil when the funnel is in place.
Use the jack handle to turn the valve a half turn in a counterclockwise direction.
Place your foot on the jack.
After the rubber plug is removed you ll be able to see the hydraulic oil level.
The funnel should prevent any unnecessary spills when refilling the oil.
If the oil is below this level high quality jack oil must be added.
To fix a floor jack that leaks down firstly check the reservoir from the level of oil in it.
The hydraulic jack oil should be visible 3 16 inch above the inner cylinder wall.
If the problem is not solved after these steps then the pressure valve needed to be repaired.
Continue pressing until the jack is down to its lowest position.
Press the jack downward.
You should make sure that your oil is poured to this level.
Sometimes more oil could be the reason for leak down.
Look for any oil seepage around this valve.
Step 4 place the small end of a clean plastic funnel into the oil filler opening hole.
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.
Hydraulic jack oil 8.