How to Fill a Bottle Jack & Bleed it

Written by craig barney
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How to Fill a Bottle Jack & Bleed it
. (Jupiterimages/ Images)

A bottle jack is a hydraulic jack that operates on a horizontal plane. This is different than standard jacks, which work while vertically set. The hydraulic feature of the jack means that a liquid within powers it, and in the case of the bottle jack, the liquid is oil. To keep your jack performing properly, you will need to bleed the jack of any pockets of air in the oil reserve, which can cause poor performance. You'll also have to fill the jack with new oil as the old is used.

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Things you need

  • Oil canister

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  1. 1

    Fit the end of the handle tool included with your jack onto the pressure release valve. This is the small valve sticking out along the bottom edge of the jack.

  2. 2

    Turn the handle by one half of a complete rotation to the right. Then, move the handle away from the valve.

  3. 3

    Lower the jack completely and pull out the small plug in the oil-filling hole. This plug is located right above the carrying handle.

  4. 4

    Slip the handle into the opening of the sleeve for the handle. This sleeve is right above the pressure release valve.

  5. 5

    Make eight full passes of the handle in a pumping motion to bleed the jack of any air bubbles.

  1. 1

    Stand the jack so it is upright. The jack should be in the down position.

  2. 2

    Place the handle into the sleeve and push it in all the way. This is the handle sleeve above the pressure release valve on the bottom of the jack.

  3. 3

    Pull out the small plug in the hole right above the carrying handle. This will open the oil-filling hole.

  4. 4

    Place the tip of the oil canister in the hole and fill the jack until the oil reaches the height of the filling hole.

  5. 5

    Put back the oil plug and use the jack as normal.

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