Epson LS-B Series Maintenance Manual page 63

Joint #2 (1) Turn ON the Controller.
Reduction
(2) Push down the shaft to its lower limit while pressing the brake release switch.
Gear Unit
Removal
(3) Turn OFF the Controller.
(4) Remove the waveform generator from the Joint #2 motor.
(5) Remove the Arm #2 by removing the screws
(6) Remove the reduction gear unit from the Arm #1
LS-B series Maintenance Rev.1
Be sure to keep enough space and prevent the end effector hitting any peripheral
equipment.
LS3-B: The brake release switch is applied to both Joint #3.
When the brake release switch is pressed, the respective brake of the Joint #3 is
released simultaneously.
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.
LS6-B: 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.
Follow the removal steps in 6.1 Replacing Joint #2 Motor.
mounting the Arm #2 on the reduction gear unit.
LS3-B
A: 10-M3×18
B: 8-M3×30+8-M3 small washer
C: 4-M3×15+4-M3 small washer
LS6-B
A: 16-M3×28
B: 8-M3×32+8-M3 small washer
C: 4-M3×12+4-M3 small washer
by removing the screws that mounts the reduction
gear unit on the Arm #1.
There is an O-ring between the Arm #1 and the
reduction gear unit.
Be careful not to lose the removed O-ring.
LS3-B LS6-B Maintenance 6. Joint #2
B
C
A
Arm #2
Reduction
Gear Unit
O ring
Arm #1
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