frequently asked questions

Where is the oil plug located on my jack?

Please see the diagrams for a typical service jack and a typical bottle jack.

How do I bleed the air from my jack?

With the ram fully retracted, locate and remove the oil plug. Open the release valve and pump the handle six to eight times; this will release any pressurized air that may be trapped in the system.

What is the proper oil level for my jack?

For service jacks the correct oil level is 3/16” above the inner cylinder. For bottle jacks the correct oil level is just below the oil filler hole with the jack sitting upright. Make sure the ram is fully retracted before checking the oil level.

What kind of oil should I use?

Only use a good grade of hydraulic jack oil. This oil is available at auto parts stores and most retail stores with an automotive department.

I have the release valve closed and am pumping the handle but the jack doesn't raise. What should I do?

Try the bleeding procedure ( #2 ) and check the oil level ( #3 ).