U2 Belt - Epson LS-B Series Maintenance Manual

8.2.1 U2 Belt

U2 belt (1) Turn ON the Controller.
Removal
(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.
LS3-B: The brake release switch is applied to Joint #3.
LS6-B: The brake release switch is applied to both Joints #3 and Joint #4.
(3) Turn OFF the Controller.
(4) Remove the Arm Top Cover.
For details, refer to 3.1 Arm Top Cover.
(5) Remove the control board unit.
(6) Cut off the wire tie binding the cables.
Do not cut off the wire tie that binds the cables to the User Plate.
(7) Disconnect the following connectors.
(8) Remove the User Plate.
For details, refer to 3.5 User Plate.
LS-B series Maintenance Rev.1
When the brake release switch is pressed, the respective brake of the Joint #3 is
released.
Be careful of the shaft falling while the brake release switch is being pressed
because the shaft may be lowered by the weight of an end effector.
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.
LS3-B: 3-M3×8 Pan head screws
(Small)
LS6-B: 4-M3×8 Pan head screws
(Small)
LS6-B602S-V1: 2-M3×10 Hexagon
socket head cap bolts
Connectors: X33, X41, X51, X241 (Hold the clip to remove.)
BR4 (Only LS6-B)
LS3-B LS6-B Maintenance 8. Joint #4
LS3-B,LS6-B
Control Board Unit
LS6-B602S-V1
Control Board Unit
73