Epson VT Series - Replacing Joint #4 Timing Belt

VT6L Maintenance 12. Joint #4
VT series Maintenance Manual Rev.2 101
12.3 Replacing Joint #4 Timing Belt
Name Quantity Note
Maintenance
parts
Timing Belt 1 1751538
Tools
Hexagonal wrench (width across flats: 3 mm) 1
For M4 hexagon socket head
cap bolts
Torque wrench
1
For tightening torque control
Cross-point screwdriver (No. 2)
1
For cross-recessed screw
Nippers
1
For cutting wire tie
Belt tension meter
1
Refer: Unitta U-505
Material
Wire tie
-
The brake is mounted on each joint to prevent the arm from lowering due to its own weight while the
Controller power is OFF or the motor is OFF status. The brake does not work during replacement.
Be careful when performing maintenance work.
Joint #4
Timing Belt
Removal
(1)
Turn OFF the Manipulator.
(2)
Remove the following covers.
Arm #3 Cover
Arm #4 Cover 1
Arm #4 Cover 2
Reference: 7 Covers
(3)
Remove
the Joint #4 motor.
Reference: 12.1 Replacing Joint #4 Motor
Joint #4 Motor Removal step (3) through (7)
(4)
Cut off the wire tie bound inside the Arm #4.
Wire tie: AB150
(5)
Cut off the wire tie that binds the following cables and
the
ground wire.
Wire tie: AB100
Joint #5 motor cable
Signal cable (for motor)
Joint #6 motor cable
Ground wire
Be careful not to cut the harness.

NOTE