How to Add Oil to a Hydraulic Jack

Beginner 15 min 11 steps 9297 views Rating: 3.6/5 Published: 2026-02-17

Position the jack on flat, level ground.. Open the release valve.. Remove the cover plate if your jack has one.

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Steps

1

Position the jack on flat, level ground.

Step 1

Position the jack on flat, level ground.

2

Open the release valve.

Step 2

Open the release valve.

3

Remove the cover plate if your jack has one.

Step 3

Remove the cover plate if your jack has one.

4

Wipe the area around the filler port plug.

Step 4

Wipe the area around the filler port plug.

5

Remove the filler port plug.

Step 5

Remove the filler port plug.

6

Fill the reservoir with hydraulic jack oil.

Step 6

Fill the reservoir with hydraulic jack oil.

7

Replace the filler plug.

Step 7

Replace the filler plug.

8

Confirm that the release valve is open.

Step 8

Confirm that the release valve is open.

9

Pump the handle quickly 10-15 times with the release valve open.

Step 9

Pump the handle quickly 10-15 times with the release valve open.

10

Close the release valve and test the jack.

Step 10

Close the release valve and test the jack.

11

Replace the cover plate.

Step 11

Replace the cover plate.

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