Replacing The Timing Belt - Epson LS3-401 series Manipulator Manual

Maintenance 7. Arm #3

7.2 Replacing the Timing Belt

Maintenance
Z belt
parts
Hexagonal wrench
Torque wrench
Nippers
Tools
Force gauge
Suitable cord (Length about 800 mm)
Wire tie
Material
NOTE
LS3: A brake is mounted on the Joint #3 motor to prevent the shaft from lowering down

LS6: A brake is mounted on the motor of Joints #3 and #4 to prevent the shaft from
Move the shaft down to its lower limit before the replacement procedure following the
removal steps.
Z belt
(1) Turn ON the Controller.
Removal
(2) Push down the shaft to its lower limit while pressing the brake release switch. Be
(3) Turn OFF the Controller.
(4) Remove the Arm Top Cover.
112
Name
width: 9 mm
width: 10 mm
width across flats: 2.5 mm
width across flats: 3 mm
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).
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).
sure to keep enough space and prevent the end effector hitting any peripheral
equipment.
LS3: The brake release switch affects only Joint #3. When the brake release switch is
pressed, the Joint #3 brake is released.
Be careful of the shaft while the brake release switch is being pressed because
the shaft may be lowered by the weight of an end effector.
LS6: 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.
For details, refer to Maintenance: 3.1 Arm Top Cover.
Quantity Note
LS3: R13B030233
1
LS6: R13B030236
1 For M3 screw
1 For M4 screw
1
1 For cutting wire tie
Z: Belt tension
1
69 N (7.0 ± 0.5 kgf)
1 For belt tension
-
LS Rev.10