3 Maintenance3.3.9. Spring Units913HAC030005-001 Revision: -© Copyright 2006 ABB. All rights reserved.3.3.9. Spring UnitsGeneralThis section describes maintenance on the Spring Units with interval 500 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 15CAUTION!The spring units must be removed according to description in section Replacement of ParallelArms on page 120or they will be damaged.Check Spring Unitsxx0700000497Required Equipment and ReferencesA HookB SpringC Rubber BellowG Greasing pointsABCGRequired Equipment Spare part no. NoteGrease Oil and Grease specificationon page 199Standard tools Standard toolkit on page 196Spring Spare parts - Parallell armsystem, IRB 360 on page 222Continues on next page