Welding motherboard capacitor

I would like to ask how to weld in the capacitor off when I try to use a soldering you can not win capacitor to ask you what is not a good way to

solder …can be used under the swap …I did before …
each spot is a little on the first point solder …
when heated to As far as possible all at the same time heating spot on the other side …
also forced to pull out of capacitor ….

not easy …but down to under the iron …The temperature is higher …because of the above are relatively old and solder …when welding out capacitance capacitors.