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This is a very general question. I am familiar with hydraulic or "bottle" jacks, and I think this is what your question is about. Hydraulic jacks have a pump to force hydraulic fluid into a hydraulic cylinder, which forces it to extend. This action is what raises whatever load you place it under. The fluid is usually pretty specific to the jack. Go to your local hardware store and ask for hydraulic jack oil. I have seen people use transmission fluid in a pinch (way out on the farm, miles from the store).
What else can I help you with?
What are jacks and their functions?
Jacks are for lifting or raising things. They can be screwed jacks or air jacks, or most commonly, hydraulic jacks.
What is jacks reactions?
jacks reaction to what?
Where is Hungry Jacks?
Hungry Jacks is at Livingston , Bussleten
When was Digby Jacks born?
Digby Jacks was born in 1945.
When did Digby Jacks die?
Digby Jacks died in 2011.
When did Harry Jacks die?
Harry Jacks died in 1994.
When was Jerry Jacks created?
Jerry Jacks was created in 1998.
When was Katrina Jacks born?
Katrina Jacks was born in 1986.
When did Katrina Jacks die?
Katrina Jacks died in 2010.
When was Ron Jacks born?
Ron Jacks was born in 1948.
When did Sam Jacks die?
Sam Jacks died in 1975.
When did Ball Jacks happen?
Ball Jacks happened in 1993.
