4.4.6 Replacing the wrist unit, IRB1660IDLocation of wrist unitThe wrist unit is located in the frontmost part of the upper arm, as shown in thefigure.xx1500002930WristAMotor axis 6BMotor axis 5CRequired equipmentNoteArt. no.EquipmentFor spare part number, see:• Spare part lists onpage 387.Motor, axis 6For spare part number, see:• Spare part lists onpage 387Wrist unit, IDAlways replace with a newwhen removed.3HAA2166-18VK-coverLoctite 574-Locking liquidContent is defined in sectionStandard tools on page 383.Standard toolkitThese procedures includereferences to the tools re-quired.Other tools and proceduresmay be required. See refer-ences to these procedures inthe step-by-step instructionsbelow.CAUTIONAlways cut the paint with a knife and grind the paint edge when disassemblingparts. See Cut the paint or surface on the robot before replacing parts on page 159.Continues on next page212 Product manual - IRB 1600/16603HAC026660-001 Revision: W© Copyright 2006-2018 ABB. All rights reserved.4 Repair4.4.6 Replacing the wrist unit, IRB1660ID