3.2 Maintenance schedule3.2.1 Specification of maintenance intervalsIntroductionThe intervals are specified in different ways depending on the type of maintenanceactivity to be carried out and the working conditions of the IRB 260:• Calendar time: specified in months regardless of whether the system isrunning or not.• Operating time: specified in operating hours. More frequent running meansmore frequent maintenance activities.• SIS: specified by the robot's SIS (Service Information System). A typicalvalue is given for a typical work cycle, but the value will differ depending onhow hard each part is run. The SIS used in M2004 is further described in theOperating manual - Service Information System.96 3HAC026048-001 Revision: E© Copyright 2006-2013 ABB. All rights reserved.3 Maintenance3.2.1 Specification of maintenance intervals