Epson LS20 Series Manipulator Manual page 117

(1) Mount the pulley to the Joint #3 motor.
Joint #3 motor
Installation
(2) Mount the Joint #3 motor to the motor plate while
NOTE

(3) Loosely secure the Joint #3 motor unit to Arm #2.
NOTE

LS20 Rev.4
Secure the pulley where the pulley end face
touches the motor shaft end face.
Tighten one of the set screws vertically on the flat
face of the motor shaft.
Insert a bushing into the other set screw hole to
prevent damage to the motor shaft.
aligning the hub to the brake disc.
Before aligning the hub, set the motor so that the
pulley will be inside of the Z belt.
When replacing the motor of the Joint #3, remove
the cap from the old motor and install it to the new
one.
If the Manipulator is operated while the cap is not
installed, the motor may be damaged due to
entering of the foreign materials into the rotating
part of the motor sensor and interference of the
rotating part and the cables.
Make sure that the teeth of the timing belt are
engaged with those of the pulley.
Check that the motor unit can be moved by hand,
and it will not tilt when pulled.
Note that if the unit is secured too loose or too
tight, the belt will not have the proper tension.
Maintenance 7. Arm #3
Pulley
M4×4
M4x6
Set screw
+M4 Bushing Set Screw
Joint #3
Motor
4-M5×15
Joint #3 Motor
Motor Plate
cap
Joint #3
Motor Unit
3-M5×20+washer for
slotted hole
Z belt
105