It's so easy to implement that the manufacturer has not provided instructions ...
Fortunately, the test day, my nephew 18 years showed me how.
Two tips are provided in addition to that on the pump tubing, one to inflate the balloons (needle) and one for articles or beach mattress.
This pump has two positions wide and narrow to adapt well to the wheel to swell.
We put the hose and nozzle to the open valve of the wheel, the pump is operated by placing the two feet to keep it there and here is a wheel and inflated to block whose manometer indicates the pressure !!!
