please buy NO 4 GENERATION one
Before use, the first need to add water (Note: not add water not boot .must add water at first) orange plastic pipe is a water pipe.
Add water to 80 percent, attention to observation, not too much .
Refueling: handle in front of a transparent plastic tube is the fuel pipe.
If the first time the air bottle does not need to cheer, the second boost need to add 3-4 drops. 3-4 times after the need to add 3-4 drops of lubricants. (Note: must not add oil, silicone oil.)
This yellow oil can not be transported by air ，So I will tell you where to buy, very cheap.
the keyword :anti-wear hydraulic oil