NoteActionSecure the lock nut in these three steps:1 Tighten with a torque of 300 Nm.2 Unscrew the lock nut.3 Tighten the lock nut finally with atightening torque of 175 Nm.NoteThe recommended order of tightening thelock nut is important to follow to avoid futureproblems with the shaft.9See Cut away view of the assembly of thelink on page 243.Refit the both VK covers.10Art.no. is specified in Required equipmenton page 244xx1000001266Fill the link with grease. Use lubrication tool.11Refit the screw and washer in the hole forfilling grease.12Detailed in section Replacing linkage -upper link arm on page 228Refit the upper link arm to the link.13Detailed in section Replacing the linkage- lower link arm on page 235Refit the upper link arm to the link.14Pendulum Calibration is described in Op-erating manual - Calibration Pendulum,enclosed with the calibration tools.Recalibrate the robot!15Axis Calibration is described in Calibratingwith Axis Calibration method on page 360.General calibration information is includedin section Calibration on page 349.Continues on next pageProduct manual - IRB 760 2513HAC039838-001 Revision: M© Copyright 2011-2018 ABB. All rights reserved.4 Repair4.4.6 Replacement of linkage - linkContinued