Epson LS20 Series

Maintenance 5. Arm #1
92 LS20 Rev.4
(5)
Secure
the Top plate to the circular spline.
Loosely f
asten all bolts in a crisscross pattern so
that
the bolts will be fastened evenly. Then,
using a torque wrench,
tighten each bolt securely
in a crisscross pattern
at the torque specified in
the table below
.
16-M5×30
Top Plate
Reduction
Gear Unit
Item Bolt type Bolts Tightening torque
Joint #1 reduction
gear unit
M5 16 10.0 N⋅m (102 kgf⋅cm)
Be careful not to apply too much force since it may damage the parts
.
(6)
Apply grease (SK
-1A) inside the flexspline.
Grease volume: 80 g
(7)
Mount the spacer to the reduction gear unit.
Hexagon socket head cap bolts: 4-M4×15
Tightening torque: 5.5 N⋅m (56.1 kgf∙cm)
Hexagon socket head cap bolts 8-M5×40
Tightening torque: 10.0 N⋅m (102 kgf∙cm)
8-M5×40
Spacer
Reduction
Gear Unit
4-M4×15
(
8)
Mount the Joint #
1 motor.
Follow the installation steps in
Maintenance: 5.1 Replacing Joint #1 Motor.

NOTE