3.3.4 Inspecting the oil level in axis-4 gearboxLocation of gearboxThe axis-4 gearbox is located in the rear part of the upper arm as shown in thefigure.xx0900000147Oil plug, filling and inspectionAOil plug, drainingBRequired equipmentNoteArt. no.Equipment, etc.See Type andamount of oil ingearboxes onpage 143.Lubricating oilContent is defined in section Stand-ard tools on page 348.-Standard toolkitThese procedures include refer-ences to the tools required.Other tools and procedures maybe required. See references tothese procedures in the step-by-step instructions below.Continues on next page130 Product manual - IRB 6620LX3HAC035737-001 Revision: P© Copyright 2009-2018 ABB. All rights reserved.3 Maintenance3.3.4 Inspecting the oil level in axis-4 gearbox
