Part number 48194558 1 st edition English October 2017 SERVICE MANUAL 580N 580SN WT 580SN 590SN Tier 4B (final) Tractor Loader Backhoe 580N PIN NHC740665 and above; 580SN WT PIN NHC745126 and above; 580SN PIN NHC743044 and above; 590SN PIN NHC746245 and above