Installation and Commissioning

General DescriptionRepairs1.2 CautionThe mechanical unit contains several parts which are too heavy to lift manually.As these parts must be moved with precision during any maintenance and repairwork, it is important to have a suitable lifting device available.The robot should always be switched to MOTORS OFF before anybody is allowedto enter its working space.1.3 Fitting new bearings and seals1.3.1 Bearings1. Do not unwrap new bearings until just before assembly, in order to prevent dustand grit getting into the bearing.2. Make sure that all parts of the bearing are free from burr dust, grinding dustand any other contamination. Cast parts must be free from foundry sand.3. Bearing rings, races and roller parts must not under any circumstances be subjectedto direct impact. The roller parts must not be subjected to any pressure that iscreated during the assembly.Tapered bearings4. The bearing should be tightened gradually until the recommended pre-tensioningis attained.5. The roller parts must be rotated a specified number of turns both before pretensioningand during pre-tensioning.6. The above procedure must be carried out to enable the roller parts to slot intothe correct position with respect to the racer flange.7. It is important to position the bearings correctly, because this directly affects theservice life of the bearing.Greasing bearings8. Bearings must be greased after they are fitted. Extreme cleanliness is necessarythroughout. High quality lubricating grease, such as 3HAB 3537-1, should beused.9. Grooved ball bearings should be greased on both sides.10. Tapered roller bearings and axial needle bearings should be greased when theyare split.6 Product Manual IRB 1400