Epson LS20 Series User Manual

Maintenance 8. Arm #4
LS20 Rev.4 121
U belt
Removal
(1)
Turn ON the Controller.
(2)
Push down the shaft to its lower limit while pressing the brake release switch. Be
sure to keep enough space and prevent
the end effector hitting any
peripheral
equipment.
The brake release switch is applied to both Joints #3 and Joint #4.
When the brake release switch is pressed, the respective brakes of the Joint #3 and
Joint #4 are released simultaneously.
Be careful of the
shaft falling and rotating while the brake release switch is
being
pressed
because the shaft may be lowered by the weight of an end effector.
(3)
Turn OFF the Controller.
(4)
Remove the
Arm Top Cover.
For details, refer to
Maintenance: 3.1 Arm Top Cover.
(5)
Remove the clip band bundling the
motor cables.
Cut off the wire tie fixing the cable to
the belt tensioner.
At this point, do not cut off the wire tie
fixing the cable to the duct plate.
Control
Board
Clip Band
User Plate
Belt tensioner
Duct Plate
(
6)
Disconnect the following
connectors.
Connectors: X31, X35, X231, X41, X42, X241 (Hold the claw to remove.)
(
7)
Remove the User Plate.
For details, refer to Maintenance: 3.5 User Plate.
(
8)
Rem
ove the screws for the Joint #3
and
#4 motor units.
Remove the Joint #3 motor from
the
motor plate
and pull out the belt.
For details, refer to Maintenance:
7.2 Replacing the Timing Belt.
Pull the Joint #4 motor unit upward.
3-M5×20
+ washer for
slotted hole
Joint #3
Motor Unit
Joint #4
Motor Unit
3-M5×20
+ washer for
slotted hole
(9
)
Remove the screws mounting the spline
plate.
Hold up the spline plate
and pull out the Z
belt and U belt.
3-M4×15
Z belt
U belt
Spline
Plate

Epson LS20 Series Specifications

General

Brand	Epson
Model	LS20 Series
Category	Robotics
Language	English