Epson T-B Series Maintenance Manual

T3-B T6-B Maintenance 11. Joint #3
T-B series Maintenance Manual Rev.1 93
11.2 Replacement of the timing belt
Name
Quantity
Note
Maintenance
part
Z belt
Width: 9 mm
1
T3-B: 1554773
Width: 10 mm
1
T6-B: 1563316
Tools
Hexagonal
wrench
Width across flats:
2.5 mm
1 For M3 screw
Width across flats: 3
mm
1 For M4 screw
Torque wrench
1
Cross-point screwdriver (No. 2)
1
For cross-recessed screw
Force gage
1
Z: Belt tension 69N (7.0±0.5kgf)
Suitable cord (Length about 800mm)
1
For belt tension
Material
Wire tie
-
A brake is mounted on the Joint #3 motor to prevent the shaft from lowering down due to
the weight of the end effector while the power to the Manipulator is OFF or while the motor
is in OFF status (MOTOR OFF).
Refer to removal steps to move the shaft down to its lower limit before the replacement
procedure.
Z belt
Removal
(1)
Remove the Joint #3 motor unit.
Reference: 11.1 Replacing Joint #3 Motor “Joint #3 motor Removal”
(2)
Unscrew the spline plate mounting screws.
3-M4×12
Holding the spline plate
upward, pull out
the Z belt.
Z belt
Spline plate
Shaft
Z belt
Installation
(1)
Pass a new Z belt through the shaft.
(2)
Lower the spline plate with the Z belt placed around the spline plate pulley. Secure
the spline plate with three
screws.
Secure temporarily the spline plate on the Arm #2 and move the shaft up and down
several times before securing the spline plate.
(3)
Mount the Joint #3 motor unit.
Reference: 11.1 Replacing Joint #3 Motor “Joint #3 motor Installation”

NOTE

Epson T-B Series Specifications

General

Brand	Epson
Model	T-B Series
Category	Robotics
Language	English