This is the second of 3 EVAs planned to prepare the ISS for future commercial visiting vehicles. The first EVA-29 took place on Feb 21, 2015.
The main tasks for this EVA:
-PMA2 cover removal
-Lubrication of the Latching End Effector (LEE) of the Canadarm2
-Preparing the forward and aft ports of Node 3 for future installation of PMM and BEAM, respectively.
EVA-30 took place on Feb 25, 2015. Astronauts Barry “Butch” Willmore (EV1) and Terry Virts (EV2) were the space walkers.
The first task involved the removal of a soft debris cover that has been protecting the PMA2’s docking mechanism since 2013, in order to clear the way for the installation of IDA-1 later this year.
Now the second task to lubricate the Canadarm2 is next.
Now third task to prepare Node 3.
Next is the third and final EVA-31.