7 ▁– ▁led ▁to ▁an ▁average ▁weight ▁of ▁ ▁per ▁ax le , ▁within ▁the ▁specified ▁ ▁limit . ▁The ▁ax le ▁load ▁was ▁not ▁bal anced , ▁though ; ▁side ▁ 1 ▁had ▁significantly ▁higher ▁ax le ▁loads . ▁The ▁ax le ▁loads , ▁starting ▁at ▁the ▁B iss el ▁ax le ▁of ▁the ▁locomot ive ▁( side ▁ 1 ), ▁were ▁in ▁order : ▁ 1 4 . 0 ▁t ▁– ▁ 1 8 . 3 ▁t ▁– ▁ 1 8 . 6 ▁t ▁– ▁ 1 4 . 5 ▁t ▁– ▁ 1 4 . 2 ▁t ▁– ▁ 1 8 . 1 ▁t ▁– ▁ 1 7 . 9 ▁t ▁– ▁ 1 1 . 2 ▁t ▁ ▁Because ▁of ▁this ▁im bal ance ▁the ▁use ▁of ▁the ▁sand ▁distrib utor ▁was ▁very ▁important . ▁Each ▁drive ▁wheel ▁could ▁be ▁fed ▁with ▁sand , ▁in ▁either ▁direction ▁of ▁travel , ▁by ▁com pressed ▁air . ▁ ▁Elect rical ▁layout ▁ ▁The ▁elect rical ▁part ▁of ▁the ▁locomot ive ▁was ▁adapted ▁from ▁the ▁Be ▁ 4 / 6 ▁ 1 2 3 0 3 , ▁with ▁changed ▁components : ▁ ▁higher ▁power ▁output ▁from ▁the ▁mot ors ▁( 4 ▁x ▁ ▁instead ▁of ▁ 4 ▁x ▁ ▁over ▁ 1 ▁hour ) ▁ ▁elect rical ▁bra ke ▁as ▁on ▁the ▁Be ▁ 4 / 6 ▁ 1 2 3 1 3 ▁and ▁success ors ▁ ▁The ▁transform er , ▁oil ▁operated ▁main ▁switch ▁and ▁ste pping ▁switch ▁were ▁located ▁in