NoteActionIn case of necessary adjustments, use theshortening loops on the lifting accessory(chain), making sure to place the chain theright way through the loops!6Release the brakes in order to find the mostlevel lifting position of the upper arm aspossible, before lifting.724 VDC power supplyIn order to release the brakes, connect the24 VDC power supply.8Removing the upper armNoteActionGuide pin, M12x150: 3HAC13056-2Remove two attachment screws (M12) inopposite holes and replace them with guidepins.1Guide pin, M12x200: 3HAC13056-3Always use guide pins in pairs!xx1300000659(Screws that secure the lower arm to theaxis-3 gearbox.)TipLubricate the guide pins with some greaseto make the upper arm slide better.xx1300000747Remove all but one of the remaining attach-ment screws.2PalletOnly valid when replacing the axis-3gearbox, with the cable harness stillpartly fitted!3Put two pallets on the floor, in front of therobot, as shown in the figure.NoteThis position is only a recommendation. Ifit is not possible to put the upper arm closeenough to the robot and keep the cableharness partly fitted, it may be necessaryto remove the cable harness andDressPack in the upper arm and wrist first.Continues on next page314 3HAC044266-001 Revision: -© Copyright 2013 ABB. All rights reserved.4 Repair4.5.4 Replacing the lower armContinued