Epson LS20-B Series

Maintenance 8. Joint #4
126 L
S20-B Rev.4
(8)
Remove the
screws mounting Joint #4
motor unit
on the reduction gear unit.
Joint #4
Motor Unit
3-M3×12
+Plain Washer
Hole for fixing the
extension shaft
Joint #4
Reduction Gear Unit
(9)
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.
(1
0)
Remove Joint #4 motor unit from the reduction gear unit.
(1
1)
Mount the cover of
the hole for fixing the extension shaft on the side of reduction
gear unit.
(1
2)
Pull the moto
r unit upward to remove.
(1
3)
Loosen the set screws tightening
the extension
shaft and remove the shaft from
the Joint #4
motor unit.
There is a brass
bushing in one of the set screw
holes.
Be sure to keep the bushing.
M3×5 Set Screw
+ M3 Bushing
Extension Shaft
M3×5
Set Screw
(1
4)
Remove
the Joint #4 motor from the motor plate.
2-M4×70
Joint #4 Motor
Motor Plate