4 Repair4.3.11. Replacement of Gearbox Unit 43HAC030005-001 Revision: -144© Copyright 2006 ABB. All rights reserved.4.3.11. Replacement of Gearbox Unit 4GeneralThis section describes Replacing Gearbox 4 with Motor (Gearbox Unit)NOTE!This action demands standard calibration of the robot. Described in section Calibrationmethods on page 172.DANGER!Turn off all electrical power, hydraulic and pneumatic pressure supplies to the robot!Also read the safety sections:• Safety risks related to pneumatic/hydraulic systems on page 18• Risks associated with live electric parts on page 20• Safety risks during installation and service work on robot on page 15Locationxx0700000547A Gearbox Motor axis 4B Hexagon socket head screw 3x (M6x25) with plain washer 6,4x12x1,6 steel A2FC Gearbox axis 4D Sealing ring w. dust lipContinues on next page