3 Maintenance3.3.7. Upper Arms873HAC030005-001 Revision: -© Copyright 2006 ABB. All rights reserved.3.3.7. Upper ArmsGeneralThis section describes maintenance on the upper arms, with interval 4000 hour.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 15Check upper armxx0700000501Required Equipment and ReferencesA Upper arm tubeB Joint BallsABRequired Equipment Spare part no. NoteStandard tools Standard toolkit on page 196ReferencesReplacement of Joint Balls on page 138Replacement of Upper Arm on page 124Continues on next page
