How-To: Fill Your Jack with Fluid
The RED arrow shows where to fill your Jack with fluid
Filler Port/plug.
Typical Bottle Jack
Typical Japanese, Taiwanese
or Chinese Floor Jack
Oil Filler
Port
Pump
Piston
Check or Overload Valves
DANGER! DANGER!
Do NOT open!
Oil Filler
Port
Check or Overload Valves
DANGER! DANGER!
Do NOT open!
Lincoln/Walker
Pre 1985
Filler
On Main
Block
Hein-Werner
After
1985
Oil Filler
Port
Check or Overload Valves
DANGER! DANGER!
Do NOT open!
Pump
Piston
After
1981
Oil Filler
Port
Check Valves Pre-1981
DANGER!
Filler Port
Do NOT open! On BACK of
MAIN BLOCK
Instructions on:
How To Refill Your Hydraulic Floor or Bottle Jack With Fluid
Step 1 - Find the Filler hole. The hole is located in a different place on different jacks.
However, most of the holes are usually found somewhere near the top of the reservoir. The
reservoir is where the fluid is located. (Refer to the attached pictures as to potential locations)
Step 2 - Remove the filler plug. In most cases the plug will be a rubber stopper. Remove the
rubber stopper with a flat screwdriver. Pry up one side and pop the plug out.
ADDING OIL
Remove plug and add oil
to indicated level.
Plug
ADDING OIL
Remove plug and add oil
to indicated level.
Plug
Step 3 - Fill the reservoir with hydraulic fluid. Be careful as to not over-fill. This will cause a
hydraulic lock and the jack will not operate.
Filling a bottle jack - With the jack in an upright position. Fill until the fluid is level with the
bottom of the fill hole.
Filling a floor jack - With the jack in a horizontal position. Fill until the fluid just covers the
inside cylinder. About 3/8 inch below the fill hole.
Step 4 - Replace the filler plug after you have filled the floor/bottle jack, it is important that
you replace the plug, so as to avoid any leaking from the jack.
Step 5 - Maintain fluid level in your floor/bottle jack at the correct level. Once the hydraulic
fluid begins to get low, you will immediately notice a reduction in the performance of your
jack. This should be the first hint that the jack is in need of care. Once you see the signs,
follow the steps above again to keep your jack in proper working order. Your jack will last for
years with the right maintenance.