Epson LS20 Series

Maintenance 8. Arm #4
122 LS20 Rev.4
U belt
Installation
(1)
Hold up the spline plate and set the U belt
around the U
2 pulley.
Make sure
the gear grooves of the belt are
fit into those of the pulleys
completely.
3-M4×15
Z belt
U belt
Spline
Plate
(2)
Hold up the spline plate and set the Z belt
around the Z2 pulley.
Make sure
the teeth of the timing belt are
engaged with
those of the pulley.
(3)
Loosely secure the spline plate on the
Arm #2 and move the shaft up and down
several times before
firmly secure the
spline plate.
Fix the screws
temporarily so that the
spline plate can be moved by hand.
Fix the spline plate with the screws while
pushing t
he front side of the Arm #2 and
the right side face.
Faces to push the
spline plate
(4)
Loosely secure the Joint #3 motor unit to
the Arm #2.
Make sure
the teeth of the timing belt are
engaged with
those of the pulley.
Joint #3
Motor Unit
3-M5×20+
washer for slotted hole
At this point, make sure that the Joint #3 motor unit can be moved by hand, and it
will
not tilt when pulled. If the unit is tilted, the belt will not have the proper
tension.
(5)
Apply the proper tension to the Z belt, and
then
secure the Joint #3 motor unit.
For details, refer to Maintenance: 7.2
Replacing the Timing Belt.
Joint #3
Motor Unit

NOTE

NOTE