I've reworked a couple of units lately, installing the caps Siglent has sent me.
Allow at least an hour to dismantle, remove the mainboard, do the rework soldering, connect for adjustments, adjust, replace front end shield covers, full reassembly and self cal.
It is NOT a five minute job.
Trimmers will likely need a couple of tweaks for each of the recommended 1.2 and 12V 10 KHz square waves to successfully trim the input compensation correctly.
Rework tips.
A 3mm chisel tip is what I've used but smaller would/could be better. There's not a lot of room on the shield side of the caps so a hoof type tip could make things tight. Sus out the best tip you have for the job before starting.
Pads have solder already on them.....leave it there.
Add liquid flux to the pads, place cap with tweezers and then pin it in place with a small screwdriver, then touch iron on one end.
More flux, then add a very little solder to the iron tip and touch the other pad.
Rotate the mainboard for best comfort as you go.
The thermal mass of pads closest to the shielding is highest so dwell a little longer to ensure a nice joint.
Clean the rework with IPA taking care not to drown the trimmers in it.
Actual rework soldering takes only a few minutes, five minutes tops.
If you're not confident with SMD work, think twice before proceeding !!!