Replacing Joint #1 Reduction Gear Unit - Epson LS20 Series Manipulator Manual

Maintenance 5. Arm #1

5.2 Replacing Joint #1 Reduction Gear Unit

A reduction gear unit consists of the following three parts. When replacing the reduction
gear unit, be sure to always replace the waveform generator, flexspline, and circular spline
all together as one set.
Waveform generator, Flexspline, Circular spline
For details of the reduction gear unit, refer to Maintenance: 14. Maintenance Parts List.
Maintenance
Reduction Gear Unit
Parts
Hexagonal wrench
Cross-point screwdriver (#2)
Tools
Torque wrench
Nippers
Spatula
Wiping cloth
Grease (SK-1A)
Grease
Joint #1 (1) Remove the Joint #1 motor unit.
Reduction
Gear Unit
Removal
(2) Remove the spacer from the reduction gear
(3) Remove the reduction gear unit from the Top
90
Name
width across flats: 2.5 mm
width across flats: 3 mm
width across flats: 4 mm
width across flats: 5 mm
width across flats: 6 mm
Follow the removal steps in Maintenance: 5.1 Replacing Joint #1 Motor.
unit.
plate.
Quantity Note
1 1646483
1 For M5 set screw
1 For M4 screw
1 For M5 screw
1 For M6 set screw
1 For M8 screw
1 For M4 screw
1
1
1 For apply grease
1
For wiping grease (Flange)
1
For wiping grease (Bolt)
- -
4-M4×15
16-M5×30
8-M5×40
Spacer
Reduction
Gear Unit
Top Plate
Reduction
Gear Unit
LS20 Rev.4