Do not use the desoldering pump to desolder joints near small surface-mounted (SMT) components. The heat spillover and suction may dislodge the SMT components.

Prime the desoldering pump by depressing the plunger.

Heat the solder joint until the solder is liquified. To help with heat transfer, add some solder onto the soldering iron's tip.

Position the pump's nozzle as close to the molten solder as possible.

The nozzle is made of heat-resistant plastic, so don't worry if you occasionally brush the tip with it.

Press the side button to activate the pump.

Repeat the process until the joint is clean. You can also use solder wick to help soak up any remnant solder.