▁– ▁Zürich ▁– ▁Winter thur ▁services , ▁and ▁then ▁comm uter ▁trains ▁around ▁Ol ten ▁and ▁fre ight ▁trains ▁around ▁Sol oth urn . ▁ ▁In ▁ 1 9 6 1 ▁the ▁locomot ive ▁was ▁fitted ▁with ▁new ▁c og w he els ▁in ▁the ▁Tsch anz ▁drives . ▁ ▁But ▁on ▁October ▁ 7 th ▁ 1 9 6 4 ▁a ▁driver ▁reported ▁a ▁flash over ▁at ▁the ▁step ▁switch , ▁and ▁as ▁a ▁result ▁of ▁this ▁the ▁locomot ive ▁was ▁to wed ▁to ▁the ▁Zürich ▁repair ▁work shop . ▁Unfortunately ▁the ▁work shop ▁was ▁busy ▁because ▁of ▁the ▁additional ▁services ▁it ▁had ▁to ▁provide ▁for ▁the ▁ 1 9 6 4 ▁Swiss ▁National ▁Ex hib ition ▁( Ex po ▁ 6 4 ), ▁and ▁the ▁locomot ive ▁was ▁stored ▁for ▁the ▁time ▁being . ▁The ▁S BB ▁general ▁management ▁had ▁decided ▁to ▁withdraw ▁all ▁of ▁the ▁veter an ▁locomot ives ▁after ▁Ex po ▁ 6 4 , ▁so ▁the ▁A e ▁ 4 / 8 ▁was ▁prompt ly ▁scra pped . ▁ ▁The ▁technical ▁importance ▁of ▁the ▁locomot ive ▁was ▁marg inal . ▁At ▁the ▁moment ▁of ▁the ▁hand over ▁of ▁the ▁A e ▁ 4 / 8 , ▁six ▁Be ▁ 4 / 7 s ▁with ▁the ▁West ing house ▁drive , ▁and ▁the ▁first ▁few ▁A e ▁ 3 / 6 Is ▁with ▁the ▁BBC ▁drive , ▁were ▁already ▁in ▁service . ▁Because ▁of ▁its ▁complexity ▁the ▁Tsch anz ▁drive ▁was ▁not ▁developed ▁any ▁further . ▁The ▁last ▁remaining