
MAINTENANCE MANUAL
8 STE 85357
2.5.1 Type of Timing Belt......................................................................................48
2.5.2 Timing Belt Locations..................................................................................49
2.5.3 Replacing Axis 3 Timing Belt.......................................................................49
2.5.4 Replacing Axis 4 Timing Belt .......................................................................53
2.5.5 Check Timing Belt Adjustment.....................................................................58
2.6 Filling Grease to Ball Screw Spline Unit and Replacement......................................59
2.6.1 Type of Ball Screw Spline Unit.....................................................................59
2.6.2 Ball Screw Spline Unit Location...................................................................60
2.6.3 Greasing Ball Screw Spline Unit and Applying Anticorrosive........................60
2.6.4 Dismounting Ball Screw Spline Unit.............................................................64
2.6.5 Mounting Ball Screw Spline Unit..................................................................68
2.7 Reduction Gear Replacement..................................................................................71
2.7.1 Type of Reduction Gear ..............................................................................71
2.7.2 Reduction Gear Locations...........................................................................72
2.7.3 Dismounting Axis 1 Reduction Gear............................................................72
2.7.4 Mounting Axis 1 Reduction Gear.................................................................74
2.7.5 Dismounting Axis 2 Reduction Gear............................................................77
2.7.6 Mounting Axis 2 Reduction Gear.................................................................78
2.7.7 Replacing Axis 4 Reduction Gear................................................................80
3. Maintenance of the Main Robot (THL500, THL600, THL700)............................................82
3.1 Details of Inspection ................................................................................................82
3.1.1 Check of Each Bolt (or Screw) for Clamping................................................82
3.1.2 Check of Each Cable and Air Tube for Abrasion..........................................84
3.1.3 Check of Cable Clamp Tightening...............................................................85
3.1.4 Check of Each Axis for Operation................................................................86
3.2 Layout of Robot Components and Drive Mechanism...............................................87
3.3 Dismounting and Mounting Each Cover...................................................................88
3.3.1 Arm 2 Cover................................................................................................89
3.3.2 Base Covers................................................................................................89
3.4 Replacing Motor ......................................................................................................92
3.4.1 Type of Motor..............................................................................................92
3.4.2 Motor Locations...........................................................................................93
3.4.3 Dismounting Axis 1 Motor............................................................................94
3.4.4 Mounting Axis 1 Motor.................................................................................95
3.4.5 Dismounting Axis 2 Motor............................................................................98
3.4.6 Mounting Axis 2 Motor.................................................................................99
3.4.7 Dismounting Axis 3 Motor..........................................................................102