Epson LS20 Series User Manual

Maintenance 7. Arm #3
LS20 Rev.4 107
7.2 Replacing the Timing Belt
Name
Quantity
Note
Maintenance
parts
Z belt 1 1618727
Tools
Hexagonal wrench
width across flats: 2.5 mm
1
For M3 screw
width across flats: 3 mm
1
For M4 screw
Cross-point screwdriver (#2)
1
For M3, M4 screws
Torque wrench
1
Nippers
1
For cutting wire tie
Ultrasonic tension meter
1
Refer: Unitta U-508
Material
Wire tie
-
For binding cables
The brakes are mounted on the Joints #3 and #4 to prevent the shaft from moving down
due to the weight of the end effector while the power to the Controller is OFF or while the
motor is in OFF status (MOTOR OFF).
Move the shaft down to its lower limit before the replacement procedure following the
removal steps.
Z 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

NOTE

Epson LS20 Series Specifications

General

Brand	Epson
Model	LS20 Series
Category	Robotics
Language	English