What to do if the rubber ring of the pump is loose

Replace the rubber ring.

When getting a pump, if you find that it is not assembled, or when you want to replace the mouthpiece for the pump, then take out the mouthpiece, the stem, and the handle one by one, and then first unscrew the nut on the new mouthpiece, and then put the end of the nut backward, through the delivery tube.

When it is time to use the pump, on the pump nozzle, choose a nozzle hole that matches the nozzle on the tire, put on the tire nozzle, (such as when you inflate a basketball, get the needle nozzle into the red nozzle first) and then press down on the white compression handle on the nozzle, and then you can use the pump to inflate the tire.

Precautions for using a pump

The traditional vertical foot pump is the most common pump. It has a fast inflation effect and is easier and less laborious to send in the pump. The old two-by-eight lever is used almost exclusively in this pump.

The Vertical Pressure Gauge Foot Pump is a pressure gauge added to the traditional vertical pump. This not only has the advantages of a traditional vertical pump system, namely simplicity and effort saving, but also shows tire pressure in real time.