Epson T-B Series Maintenance Manual page 126

T3-B T6-B Maintenance 13. Ball Screw Spline Unit
Ball Screw (1) Turn ON the Manipulator.
Spline Unit
(2) Press and hold the brake release switch to let the shaft down. Be sure to keep enough
Removal
NOTE

(3) Turn OFF the Manipulator.
(4) Detach the wires/tubes from the end effector and remove the end effector.
(5) Remove the arm top cover and arm bottom cover.
(6) Remove three screws mounting the spline
(7) Remove four screws mounting the spline nut.
(8) Pull out the following toward the Arm #2 upper side.
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space and prevent the end effector hitting any peripheral equipment.
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 falling while the brake release switch is being pressed because
the shaft may be lowered by the weight of the end effector.
Reference: 7. Covers
plate.
a: 3-M4×12
b: T3-B: 4-M4×10
T6-B: 4-M4×12
Ball screw spline unit Z belt U belt (T3-B) U2belt (T6-B)
a
b
T-B series Maintenance Manual Rev.1