4.4 Upper and lower arm4.4.1 Replacing the turning diskLocation of turning diskThe turning disk is located in the front of the wrist housing as shown in the figurebelow.The figure shows the turning disk on an IRB 6620 Foundry Plus/IRB 6620LX.xx0600003082Turning diskAWrist unitBOil plug, drainingCOil plug, fillingDAttachment screws, turning disk (6 pcs)ERequired equipmentNoteArt. no.Equipment, etc.O-rings are not included!For spare part no.see: Spare part listson page 351.Turning diskMust be replaced when replacingthe turning disk!3HAB3772-65 (1pc)21520431-20 (6 pcs)O-ringWrist, type 1For IRB 6620 Foundry Plus.3HAB3772-64 (1 pc)O-ringWrist, type 2 Must be replaced when replacingthe turning disk!3HAB3772-61 (12pcs)Used to lubricate the o-rings.3HAB3537-1GreaseLoctite 5743HAC034903-001Flange sealantContent is defined in sectionStandard 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 pageProduct manual - IRB 6620LX 2053HAC035737-001 Revision: P© Copyright 2009-2018 ABB. All rights reserved.4 Repair4.4.1 Replacing the turning disk
