872.6.2 Customer connections on the robot ............................................................892.7 Start of robot in cold environments ......................................................................913 Maintenance913.1 Introduction ......................................................................................................923.2 Maintenance schedule .......................................................................................923.2.1 Specification of maintenance intervals ........................................................933.2.2 Maintenance schedule .............................................................................953.3 Inspection activities ...........................................................................................953.3.1 Inspecting the robot cabling .....................................................................963.3.2 Inspecting mechanical stops ....................................................................993.3.3 Inspecting dampers .................................................................................1013.3.4 Inspecting timing belts ............................................................................1053.3.5 Inspecting plastic covers ..........................................................................1073.4 Replacement/changing activities ..........................................................................1073.4.1 Type of lubrication in gearboxes ................................................................1093.4.2 Replacing the battery pack ........................................................................1123.5 Cleaning activities .............................................................................................1123.5.1 Cleaning the IRB 120 ...............................................................................1154 Repair1154.1 Introduction ......................................................................................................1164.2 General procedures ...........................................................................................1164.2.1 Mounting instructions for seals ..................................................................1184.2.2 Replacing parts on the robot .....................................................................1204.3 Cable harness ..................................................................................................1204.3.1 Removing the cable harness .....................................................................1344.3.2 Refitting the cable harness ........................................................................1484.3.3 Replacing the Encoder Interface board ........................................................1514.4 Plastic covers ...................................................................................................1514.4.1 Replacing plastic covers ...........................................................................1554.5 Upper arm .......................................................................................................1554.5.1 Replacing the upper arm ..........................................................................1644.6 Lower arm .......................................................................................................1644.6.1 Replacing the lower arm ...........................................................................1694.7 Motors and motors with gearboxes .......................................................................1694.7.1 Replacing axis-1 motor with gearbox ..........................................................1904.7.2 Replacing axis-2 motor with gearbox ..........................................................2024.7.3 Replacing axis-3 motor with gearbox ..........................................................2104.7.4 Replacing motor axis 4, with gearbox ..........................................................2114.7.5 Replacing motor axis 5 .............................................................................2174.7.6 Replacing motor axis 6 .............................................................................2184.8 Gearboxes .......................................................................................................2184.8.1 Replacing gearbox axis 1 ..........................................................................2194.8.2 Replacing gearbox axis 2 ..........................................................................2204.8.3 Replacing gearbox axis 3 ..........................................................................2214.8.4 Replacing gearbox axis 4 ..........................................................................2224.8.5 Replacing gearbox axis 5 ..........................................................................2234.8.6 Replacing gearbox axis 6 ..........................................................................2255 Calibration2255.1 Introduction to calibration ...................................................................................2255.1.1 Introduction and calibration terminology ......................................................2265.1.2 Calibration methods .................................................................................2275.1.3 When to calibrate ...................................................................................2285.2 Synchronization marks and axis movement directions .............................................2285.2.1 Synchronization marks and synchronization position for axes .........................2305.2.2 Calibration movement directions for all axes ................................................6 Product manual - IRB 1203HAC035728-001 Revision: N© Copyright 2009-2017 ABB. 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