Solution : https://service.sap.com/sap/support/notes/97583 (SAP Service marketplace login required)
Key words : 
command  /usr/sap/put/exe/tp addtobuffer sapkl40b03 buffer=port_im2, transaction   smlt -> schedule import -> special imports -> partial imports   -> tables, directory /usr/sap/put/cofiles  requires write authorization, import language-dependent text pool entries, text pool takes   approximately 30 minutes, car -xvf <path>/fixes/l31h06, /usr/sap/put/bin, job sap-language-import-job-3, /usr/sap/put  kl40b03, car -xvf <path>/fixes/kl40b03
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