Epson LS3-401 series User Manual

Maintenance 6. Arm #2
LS Rev.10 103
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
SHF17-50
1
LS3: R13B010040
SHF20-50
LS6: R13B010039
Hexagonal
wrench
width across flats: 2 mm
1
For M4 set screw
width across flats: 2.5 mm
1
For M3 screw
width across flats: 3 mm
1
For M4 screw
Torque wrench
1
Spatula
1
For apply grease
Wiping cloth
1
For wiping grease (Flange)
1
For wiping grease (Bolt)
Screw (M3) Length about 20 mm
2
For removing the flexspline
Material
Wire tie
-
Grease
Grease
SK-2
-
LS3
SK-1A
-
LS6
LS3: A brake is mounted on the Joint #3 motor to prevent the shaft from lowering 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).
LS6: A brake is mounted on the motor of 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 LS3-401 series Specifications

General

Brand	Epson
Model	LS3-401 series
Category	Robotics
Language	English