Epson LS20 Series User Manual

Maintenance 6. Arm #2
98 LS20 Rev.4
6.2 Replacing Joint #2 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
1646484
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
Cross-point screwdriver (#2)
1
For M4 screw
Torque wrench
1
Nippers
1
For cutting wire tie
Spatula
1
For apply grease
Wiping cloth
1
For wiping grease (Flange)
1
For wiping grease (Bolt)
Material
Wire tie
-
Grease
Grease (SK-1A)
-
-
The brakes are mounted on the Joints #3 and #4 to prevent the shaft from moving down
due to the weight of the end effector while the power to the Controller is OFF or while the
motor is in OFF status (MOTOR OFF).
Move the shaft down to its lower limit before the replacement procedure following the
removal steps.

NOTE

Epson LS20 Series Specifications

General

Brand	Epson
Model	LS20 Series
Category	Robotics
Language	English