5.4 Axes 3 and 45.4.1 Replacing the arm house cover including the axis-4 cassette sealingLocation of the arm house cover and cassette sealingThe arm house cover including the cassette sealing is located as shown in thefigure.xx2300000030Summary of the replacement procedureThis is a brief summary of the replacement procedure, containing the major actionsto be performed.1 Protection type Foundry Plus: Remove the cover.2 Remove the cable harness from the upper arm.3 Remove the cable guide.4 Replace the arm house cover including the cassette sealing.Required spare partsNoteThe spare part numbers that are listed in the table can be out of date. See thelatest spare parts of the IRB 6720 via myABB Business Portal,www.abb.com/myABB.LevelNoteArticle numberSpare partL2Gasket and cassette sealingincluded3HAC077945-003(Graphite White)3HAC077945-004(ABB Orange)Arm house cover including cas-sette sealingContinues on next pageProduct manual - IRB 6720 2393HAC085697-001 Revision: C© Copyright 2023 ABB. All rights reserved.5 Repair5.4.1 Replacing the arm house cover including the axis-4 cassette sealing