Login to the UIM Primary hub robot server and go to the nimsoft installation folder (~\Nimsoft) then you will be able to find nimbus.savf and nimsoft.savf files at following location.
/install/setup/as400
You can transfer these two files to the iSeries machine where you want to install the robot and follow the instruction in below doc for installation of the robot.
https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/it-operations-management/unified-infrastructure-management/9-0-2/installing/deploy-robots/install-an-ibm-i-robot.html
Note: You do not need to deploy iSeries Robot package on to primary hub at all for installation of iSeries robot.