Maintenance 5. Arm #1
90
LS20 Rev.4
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
.
Name
Quantity
Note
Maintenance
Parts
Reduction Gear Unit
1
1646483
Tools
Hexagonal wrench
width across flats: 2.5 mm
1
For M5 set screw
width across flats: 3 mm
1
For M4 screw
width across flats: 4 mm
1
For M5 screw
width across flats: 5 mm
1
For M6 set screw
width across flats: 6 mm
1
For M8 screw
Cross-point screwdriver (#2)
1
For M4 screw
Torque wrench
1
Nippers
1
Spatula
1
For apply grease
Wiping cloth
1
For wiping grease (Flange)
1
For wiping grease (Bolt)
Grease
Grease (SK-1A)
-
-
Joint #1
Reduction
Gear Unit
Removal
(1) Remove the Joint #1 motor unit.
Follow the removal steps in
Maintenance: 5.1 Replacing Joint #1 Motor
.
(2) Remove the spacer from the reduction gear
unit.
8-M5
×
40
Spacer
Reduction
Gear Unit
4-M4
×
15
(3) Remove the reduction gear unit from the Top
plate.
16-M5
×
30
Top Plate
Reduction
Gear Unit
Summary of Contents for LS20
Page 1: ...Rev 4 EM179R3533F SCARA ROBOT LS20 series MANIPULATOR MANUAL ...
Page 2: ...MANIPULATOR MANUAL LS20 series Rev 4 ...
Page 8: ...vi LS20 Rev 4 ...
Page 12: ...TABLE OF CONTENTS x LS20 Rev 4 ...
Page 14: ......
Page 29: ...Setup Operation 2 Specifications LS20 Rev 4 17 LS20 804S Standard Model ...
Page 31: ...Setup Operation 2 Specifications LS20 Rev 4 19 LS20 804C Cleanroom Model ...
Page 33: ...Setup Operation 2 Specifications LS20 Rev 4 21 LS20 A04S Standard Model ...
Page 35: ...Setup Operation 2 Specifications LS20 Rev 4 23 LS20 A04C Cleanroom Model ...
Page 72: ......
Page 92: ...Maintenance 4 Cable 80 LS20 Rev 4 4 2 Wiring Diagrams 4 2 1 Signal Cable ...
Page 176: ...Maintenance 14 Maintenance Parts List 164 LS20 Rev 4 ...