Replacing The Ball Screw Spline Unit - Epson LS20-B Series Manual

Maintenance 10. Ball Screw Spline Unit

10.2 Replacing the Ball Screw Spline Unit

A brake is mounted on the motor of Joints #3 and #4 to prevent the shaft from moving down
NOTE

and rotating 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.
Maintenance
Ball Screw Spline Unit
part
For Ball Screw Spline Unit
Grease
(AFB grease)
Hexagonal
wrench
Torque wrench
Tools Nippers
Cross-point screwdriver (#2)
Wiping cloth
Material Wire tie
150
Name
width across flats: 3 mm
width across flats: 4 mm
Qty.
1646487: For LS20-B*04S
1
1646488: For LS20-B*04C
Proper
quantity
1 For M4 screw
1 For M5 screw
1
1 For cutting wire tie
1
For wiping grease
1
(Spline shaft)
-
Note
LS20-B Rev.4