Epson LS20-B Series

Maintenance 8. Joint #4
142 L
S20-B Rev.4
Joint #4
Reduction Gear
Unit
Removal
(1)
Re
move the Joint #4 motor unit from the Arm
#2.
Fo
r details, refer to the Installation steps in
Maintenance: 8.2 Replacing the Timing Belt.
3-M3×12
+ Plain Washer
Joint #4 Motor
Hole for fixing the
extension shaft
Joint #4
Reduction Gear Unit
(2)
Remove the
screws mounting Joint #4 motor
unit
on the reduction gear unit.
Remove the cover of the hole for fixing the
extension
shaft on the side of the reduction
gear,
and loosen the screws.
If the screw position
does not match, turn the motor slightly and move until the screw
fixing the
extension shaft can be seen.
Remove Joint #4 motor unit from the reduction gear
unit.
Mount the cover of a hole for fixing
the extension shaft on the side of reduction gear
unit.
Pull the moto
r unit upward to remove.
(3)
Remove the
U pulley and U housing.
4-M4×10
U Housing
Joint #4
Reduction Gear Unit
U Pulley
6-M4×15
(4)
Remove the plate.
4-M4×20
Plain Washer
Plate
Joint #4
Reduction Gear Unit